diff --git a/library/ssl_msg.c b/library/ssl_msg.c
index 753998e..0d45739 100644
--- a/library/ssl_msg.c
+++ b/library/ssl_msg.c
@@ -48,78 +48,74 @@
 #include "mbedtls/oid.h"
 #endif
 
-static uint32_t ssl_get_hs_total_len( mbedtls_ssl_context const *ssl );
+static uint32_t ssl_get_hs_total_len(mbedtls_ssl_context const *ssl);
 
 /*
  * Start a timer.
  * Passing millisecs = 0 cancels a running timer.
  */
-void mbedtls_ssl_set_timer( mbedtls_ssl_context *ssl, uint32_t millisecs )
+void mbedtls_ssl_set_timer(mbedtls_ssl_context *ssl, uint32_t millisecs)
 {
-    if( ssl->f_set_timer == NULL )
+    if (ssl->f_set_timer == NULL) {
         return;
+    }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "set_timer to %d ms", (int) millisecs ) );
-    ssl->f_set_timer( ssl->p_timer, millisecs / 4, millisecs );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("set_timer to %d ms", (int) millisecs));
+    ssl->f_set_timer(ssl->p_timer, millisecs / 4, millisecs);
 }
 
 /*
  * Return -1 is timer is expired, 0 if it isn't.
  */
-int mbedtls_ssl_check_timer( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_check_timer(mbedtls_ssl_context *ssl)
 {
-    if( ssl->f_get_timer == NULL )
-        return( 0 );
-
-    if( ssl->f_get_timer( ssl->p_timer ) == 2 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "timer expired" ) );
-        return( -1 );
+    if (ssl->f_get_timer == NULL) {
+        return 0;
     }
 
-    return( 0 );
+    if (ssl->f_get_timer(ssl->p_timer) == 2) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("timer expired"));
+        return -1;
+    }
+
+    return 0;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_record_header( mbedtls_ssl_context const *ssl,
-                                    unsigned char *buf,
-                                    size_t len,
-                                    mbedtls_record *rec );
+static int ssl_parse_record_header(mbedtls_ssl_context const *ssl,
+                                   unsigned char *buf,
+                                   size_t len,
+                                   mbedtls_record *rec);
 
-int mbedtls_ssl_check_record( mbedtls_ssl_context const *ssl,
-                              unsigned char *buf,
-                              size_t buflen )
+int mbedtls_ssl_check_record(mbedtls_ssl_context const *ssl,
+                             unsigned char *buf,
+                             size_t buflen)
 {
     int ret = 0;
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "=> mbedtls_ssl_check_record" ) );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "record buffer", buf, buflen );
+    MBEDTLS_SSL_DEBUG_MSG(1, ("=> mbedtls_ssl_check_record"));
+    MBEDTLS_SSL_DEBUG_BUF(3, "record buffer", buf, buflen);
 
     /* We don't support record checking in TLS because
      * there doesn't seem to be a usecase for it.
      */
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_STREAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_STREAM) {
         ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
         goto exit;
     }
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    else
-    {
+    else {
         mbedtls_record rec;
 
-        ret = ssl_parse_record_header( ssl, buf, buflen, &rec );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 3, "ssl_parse_record_header", ret );
+        ret = ssl_parse_record_header(ssl, buf, buflen, &rec);
+        if (ret != 0) {
+            MBEDTLS_SSL_DEBUG_RET(3, "ssl_parse_record_header", ret);
             goto exit;
         }
 
-        if( ssl->transform_in != NULL )
-        {
-            ret = mbedtls_ssl_decrypt_buf( ssl, ssl->transform_in, &rec );
-            if( ret != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_RET( 3, "mbedtls_ssl_decrypt_buf", ret );
+        if (ssl->transform_in != NULL) {
+            ret = mbedtls_ssl_decrypt_buf(ssl, ssl->transform_in, &rec);
+            if (ret != 0) {
+                MBEDTLS_SSL_DEBUG_RET(3, "mbedtls_ssl_decrypt_buf", ret);
                 goto exit;
             }
         }
@@ -129,18 +125,17 @@
 exit:
     /* On success, we have decrypted the buffer in-place, so make
      * sure we don't leak any plaintext data. */
-    mbedtls_platform_zeroize( buf, buflen );
+    mbedtls_platform_zeroize(buf, buflen);
 
     /* For the purpose of this API, treat messages with unexpected CID
      * as well as such from future epochs as unexpected. */
-    if( ret == MBEDTLS_ERR_SSL_UNEXPECTED_CID ||
-        ret == MBEDTLS_ERR_SSL_EARLY_MESSAGE )
-    {
+    if (ret == MBEDTLS_ERR_SSL_UNEXPECTED_CID ||
+        ret == MBEDTLS_ERR_SSL_EARLY_MESSAGE) {
         ret = MBEDTLS_ERR_SSL_UNEXPECTED_RECORD;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "<= mbedtls_ssl_check_record" ) );
-    return( ret );
+    MBEDTLS_SSL_DEBUG_MSG(1, ("<= mbedtls_ssl_check_record"));
+    return ret;
 }
 
 #define SSL_DONT_FORCE_FLUSH 0
@@ -149,65 +144,66 @@
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
 
 /* Forward declarations for functions related to message buffering. */
-static void ssl_buffering_free_slot( mbedtls_ssl_context *ssl,
-                                     uint8_t slot );
-static void ssl_free_buffered_record( mbedtls_ssl_context *ssl );
+static void ssl_buffering_free_slot(mbedtls_ssl_context *ssl,
+                                    uint8_t slot);
+static void ssl_free_buffered_record(mbedtls_ssl_context *ssl);
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_load_buffered_message( mbedtls_ssl_context *ssl );
+static int ssl_load_buffered_message(mbedtls_ssl_context *ssl);
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_load_buffered_record( mbedtls_ssl_context *ssl );
+static int ssl_load_buffered_record(mbedtls_ssl_context *ssl);
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_buffer_message( mbedtls_ssl_context *ssl );
+static int ssl_buffer_message(mbedtls_ssl_context *ssl);
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_buffer_future_record( mbedtls_ssl_context *ssl,
-                                     mbedtls_record const *rec );
+static int ssl_buffer_future_record(mbedtls_ssl_context *ssl,
+                                    mbedtls_record const *rec);
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl );
+static int ssl_next_record_is_in_datagram(mbedtls_ssl_context *ssl);
 
-static size_t ssl_get_maximum_datagram_size( mbedtls_ssl_context const *ssl )
+static size_t ssl_get_maximum_datagram_size(mbedtls_ssl_context const *ssl)
 {
-    size_t mtu = mbedtls_ssl_get_current_mtu( ssl );
+    size_t mtu = mbedtls_ssl_get_current_mtu(ssl);
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
     size_t out_buf_len = ssl->out_buf_len;
 #else
     size_t out_buf_len = MBEDTLS_SSL_OUT_BUFFER_LEN;
 #endif
 
-    if( mtu != 0 && mtu < out_buf_len )
-        return( mtu );
+    if (mtu != 0 && mtu < out_buf_len) {
+        return mtu;
+    }
 
-    return( out_buf_len );
+    return out_buf_len;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_get_remaining_space_in_datagram( mbedtls_ssl_context const *ssl )
+static int ssl_get_remaining_space_in_datagram(mbedtls_ssl_context const *ssl)
 {
     size_t const bytes_written = ssl->out_left;
-    size_t const mtu           = ssl_get_maximum_datagram_size( ssl );
+    size_t const mtu           = ssl_get_maximum_datagram_size(ssl);
 
     /* Double-check that the write-index hasn't gone
      * past what we can transmit in a single datagram. */
-    if( bytes_written > mtu )
-    {
+    if (bytes_written > mtu) {
         /* Should never happen... */
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-    return( (int) ( mtu - bytes_written ) );
+    return (int) (mtu - bytes_written);
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_get_remaining_payload_in_datagram( mbedtls_ssl_context const *ssl )
+static int ssl_get_remaining_payload_in_datagram(mbedtls_ssl_context const *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t remaining, expansion;
     size_t max_len = MBEDTLS_SSL_OUT_CONTENT_LEN;
 
 #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    const size_t mfl = mbedtls_ssl_get_output_max_frag_len( ssl );
+    const size_t mfl = mbedtls_ssl_get_output_max_frag_len(ssl);
 
-    if( max_len > mfl )
+    if (max_len > mfl) {
         max_len = mfl;
+    }
 
     /* By the standard (RFC 6066 Sect. 4), the MFL extension
      * only limits the maximum record payload size, so in theory
@@ -218,30 +214,35 @@
      * The following reduction of max_len makes sure that we never
      * write datagrams larger than MFL + Record Expansion Overhead.
      */
-    if( max_len <= ssl->out_left )
-        return( 0 );
+    if (max_len <= ssl->out_left) {
+        return 0;
+    }
 
     max_len -= ssl->out_left;
 #endif
 
-    ret = ssl_get_remaining_space_in_datagram( ssl );
-    if( ret < 0 )
-        return( ret );
+    ret = ssl_get_remaining_space_in_datagram(ssl);
+    if (ret < 0) {
+        return ret;
+    }
     remaining = (size_t) ret;
 
-    ret = mbedtls_ssl_get_record_expansion( ssl );
-    if( ret < 0 )
-        return( ret );
+    ret = mbedtls_ssl_get_record_expansion(ssl);
+    if (ret < 0) {
+        return ret;
+    }
     expansion = (size_t) ret;
 
-    if( remaining <= expansion )
-        return( 0 );
+    if (remaining <= expansion) {
+        return 0;
+    }
 
     remaining -= expansion;
-    if( remaining >= max_len )
+    if (remaining >= max_len) {
         remaining = max_len;
+    }
 
-    return( (int) remaining );
+    return (int) remaining;
 }
 
 /*
@@ -249,12 +250,13 @@
  * returning -1 if the maximum value has already been reached.
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_double_retransmit_timeout( mbedtls_ssl_context *ssl )
+static int ssl_double_retransmit_timeout(mbedtls_ssl_context *ssl)
 {
     uint32_t new_timeout;
 
-    if( ssl->handshake->retransmit_timeout >= ssl->conf->hs_timeout_max )
-        return( -1 );
+    if (ssl->handshake->retransmit_timeout >= ssl->conf->hs_timeout_max) {
+        return -1;
+    }
 
     /* Implement the final paragraph of RFC 6347 section 4.1.1.1
      * in the following way: after the initial transmission and a first
@@ -262,33 +264,31 @@
      * This value is guaranteed to be deliverable (if not guaranteed to be
      * delivered) of any compliant IPv4 (and IPv6) network, and should work
      * on most non-IP stacks too. */
-    if( ssl->handshake->retransmit_timeout != ssl->conf->hs_timeout_min )
-    {
+    if (ssl->handshake->retransmit_timeout != ssl->conf->hs_timeout_min) {
         ssl->handshake->mtu = 508;
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "mtu autoreduction to %d bytes", ssl->handshake->mtu ) );
+        MBEDTLS_SSL_DEBUG_MSG(2, ("mtu autoreduction to %d bytes", ssl->handshake->mtu));
     }
 
     new_timeout = 2 * ssl->handshake->retransmit_timeout;
 
     /* Avoid arithmetic overflow and range overflow */
-    if( new_timeout < ssl->handshake->retransmit_timeout ||
-        new_timeout > ssl->conf->hs_timeout_max )
-    {
+    if (new_timeout < ssl->handshake->retransmit_timeout ||
+        new_timeout > ssl->conf->hs_timeout_max) {
         new_timeout = ssl->conf->hs_timeout_max;
     }
 
     ssl->handshake->retransmit_timeout = new_timeout;
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %lu millisecs",
-                        (unsigned long) ssl->handshake->retransmit_timeout ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("update timeout value to %lu millisecs",
+                              (unsigned long) ssl->handshake->retransmit_timeout));
 
-    return( 0 );
+    return 0;
 }
 
-static void ssl_reset_retransmit_timeout( mbedtls_ssl_context *ssl )
+static void ssl_reset_retransmit_timeout(mbedtls_ssl_context *ssl)
 {
     ssl->handshake->retransmit_timeout = ssl->conf->hs_timeout_min;
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %lu millisecs",
-                        (unsigned long) ssl->handshake->retransmit_timeout ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("update timeout value to %lu millisecs",
+                              (unsigned long) ssl->handshake->retransmit_timeout));
 }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
@@ -298,10 +298,10 @@
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) || defined(MBEDTLS_SSL_PROTO_TLS1_3)
 
-static size_t ssl_compute_padding_length( size_t len,
-                                          size_t granularity )
+static size_t ssl_compute_padding_length(size_t len,
+                                         size_t granularity)
 {
-    return( ( granularity - ( len + 1 ) % granularity ) % granularity );
+    return (granularity - (len + 1) % granularity) % granularity;
 }
 
 /* This functions transforms a (D)TLS plaintext fragment and a record content
@@ -333,52 +333,54 @@
  *    for the expansion.
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_build_inner_plaintext( unsigned char *content,
-                                      size_t *content_size,
-                                      size_t remaining,
-                                      uint8_t rec_type,
-                                      size_t pad )
+static int ssl_build_inner_plaintext(unsigned char *content,
+                                     size_t *content_size,
+                                     size_t remaining,
+                                     uint8_t rec_type,
+                                     size_t pad)
 {
     size_t len = *content_size;
 
     /* Write real content type */
-    if( remaining == 0 )
-        return( -1 );
-    content[ len ] = rec_type;
+    if (remaining == 0) {
+        return -1;
+    }
+    content[len] = rec_type;
     len++;
     remaining--;
 
-    if( remaining < pad )
-        return( -1 );
-    memset( content + len, 0, pad );
+    if (remaining < pad) {
+        return -1;
+    }
+    memset(content + len, 0, pad);
     len += pad;
     remaining -= pad;
 
     *content_size = len;
-    return( 0 );
+    return 0;
 }
 
 /* This function parses a (D)TLSInnerPlaintext structure.
  * See ssl_build_inner_plaintext() for details. */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_inner_plaintext( unsigned char const *content,
-                                          size_t *content_size,
-                                          uint8_t *rec_type )
+static int ssl_parse_inner_plaintext(unsigned char const *content,
+                                     size_t *content_size,
+                                     uint8_t *rec_type)
 {
     size_t remaining = *content_size;
 
     /* Determine length of padding by skipping zeroes from the back. */
-    do
-    {
-        if( remaining == 0 )
-            return( -1 );
+    do {
+        if (remaining == 0) {
+            return -1;
+        }
         remaining--;
-    } while( content[ remaining ] == 0 );
+    } while (content[remaining] == 0);
 
     *content_size = remaining;
-    *rec_type = content[ remaining ];
+    *rec_type = content[remaining];
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID || MBEDTLS_SSL_PROTO_TLS1_3 */
 
@@ -433,12 +435,12 @@
  *    2: length_of_DTLSInnerPlaintext
  *
  */
-static void ssl_extract_add_data_from_record( unsigned char* add_data,
-                                              size_t *add_data_len,
-                                              mbedtls_record *rec,
-                                              mbedtls_ssl_protocol_version
-                                              tls_version,
-                                              size_t taglen )
+static void ssl_extract_add_data_from_record(unsigned char *add_data,
+                                             size_t *add_data_len,
+                                             mbedtls_record *rec,
+                                             mbedtls_ssl_protocol_version
+                                             tls_version,
+                                             size_t taglen)
 {
     /* Several types of ciphers have been defined for use with TLS and DTLS,
      * and the MAC calculations for those ciphers differ slightly. Further
@@ -527,7 +529,7 @@
      *                cid +
      *                cid_length +
      *                length_of_DTLSInnerPlaintext
-    */
+     */
 
     unsigned char *cur = add_data;
     size_t ad_len_field = rec->data_len;
@@ -538,26 +540,23 @@
 #endif
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
-    if( tls_version == MBEDTLS_SSL_VERSION_TLS1_3 )
-    {
+    if (tls_version == MBEDTLS_SSL_VERSION_TLS1_3) {
         /* In TLS 1.3, the AAD contains the length of the TLSCiphertext,
          * which differs from the length of the TLSInnerPlaintext
          * by the length of the authentication tag. */
         ad_len_field += taglen;
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
     {
         ((void) tls_version);
         ((void) taglen);
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) && \
-    MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT == 0
-        if( rec->cid_len != 0 )
-        {
+        MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT == 0
+        if (rec->cid_len != 0) {
             // seq_num_placeholder
-            memcpy( cur, seq_num_placeholder, sizeof(seq_num_placeholder) );
-            cur += sizeof( seq_num_placeholder );
+            memcpy(cur, seq_num_placeholder, sizeof(seq_num_placeholder));
+            cur += sizeof(seq_num_placeholder);
 
             // tls12_cid type
             *cur = rec->type;
@@ -566,13 +565,12 @@
             // cid_length
             *cur = rec->cid_len;
             cur++;
-        }
-        else
+        } else
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
         {
             // epoch + sequence number
-            memcpy( cur, rec->ctr, sizeof( rec->ctr ) );
-            cur += sizeof( rec->ctr );
+            memcpy(cur, rec->ctr, sizeof(rec->ctr));
+            cur += sizeof(rec->ctr);
         }
     }
 
@@ -581,14 +579,13 @@
     cur++;
 
     // version
-    memcpy( cur, rec->ver, sizeof( rec->ver ) );
-    cur += sizeof( rec->ver );
+    memcpy(cur, rec->ver, sizeof(rec->ver));
+    cur += sizeof(rec->ver);
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) && \
     MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT == 1
 
-    if (rec->cid_len != 0)
-    {
+    if (rec->cid_len != 0) {
         // CID
         memcpy(cur, rec->cid, rec->cid_len);
         cur += rec->cid_len;
@@ -600,29 +597,26 @@
         // length of inner plaintext
         MBEDTLS_PUT_UINT16_BE(ad_len_field, cur, 0);
         cur += 2;
-    }
-    else
+    } else
 #elif defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) && \
     MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT == 0
 
-    if( rec->cid_len != 0 )
-    {
+    if (rec->cid_len != 0) {
         // epoch + sequence number
         memcpy(cur, rec->ctr, sizeof(rec->ctr));
         cur += sizeof(rec->ctr);
 
         // CID
-        memcpy( cur, rec->cid, rec->cid_len );
+        memcpy(cur, rec->cid, rec->cid_len);
         cur += rec->cid_len;
 
         // length of inner plaintext
-        MBEDTLS_PUT_UINT16_BE( ad_len_field, cur, 0 );
+        MBEDTLS_PUT_UINT16_BE(ad_len_field, cur, 0);
         cur += 2;
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
     {
-        MBEDTLS_PUT_UINT16_BE( ad_len_field, cur, 0 );
+        MBEDTLS_PUT_UINT16_BE(ad_len_field, cur, 0);
         cur += 2;
     }
 
@@ -634,9 +628,9 @@
     defined(MBEDTLS_CHACHAPOLY_C)
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int ssl_transform_aead_dynamic_iv_is_explicit(
-                                mbedtls_ssl_transform const *transform )
+    mbedtls_ssl_transform const *transform)
 {
-    return( transform->ivlen != transform->fixed_ivlen );
+    return transform->ivlen != transform->fixed_ivlen;
 }
 
 /* Compute IV := ( fixed_iv || 0 ) XOR ( 0 || dynamic_IV )
@@ -662,34 +656,34 @@
  * which has to be ensured by the caller. If this precondition
  * violated, the behavior of this function is undefined.
  */
-static void ssl_build_record_nonce( unsigned char *dst_iv,
-                                    size_t dst_iv_len,
-                                    unsigned char const *fixed_iv,
-                                    size_t fixed_iv_len,
-                                    unsigned char const *dynamic_iv,
-                                    size_t dynamic_iv_len )
+static void ssl_build_record_nonce(unsigned char *dst_iv,
+                                   size_t dst_iv_len,
+                                   unsigned char const *fixed_iv,
+                                   size_t fixed_iv_len,
+                                   unsigned char const *dynamic_iv,
+                                   size_t dynamic_iv_len)
 {
     /* Start with Fixed IV || 0 */
-    memset( dst_iv, 0, dst_iv_len );
-    memcpy( dst_iv, fixed_iv, fixed_iv_len );
+    memset(dst_iv, 0, dst_iv_len);
+    memcpy(dst_iv, fixed_iv, fixed_iv_len);
 
     dst_iv += dst_iv_len - dynamic_iv_len;
-    mbedtls_xor( dst_iv, dst_iv, dynamic_iv, dynamic_iv_len );
+    mbedtls_xor(dst_iv, dst_iv, dynamic_iv, dynamic_iv_len);
 }
 #endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C || MBEDTLS_CHACHAPOLY_C */
 
-int mbedtls_ssl_encrypt_buf( mbedtls_ssl_context *ssl,
-                             mbedtls_ssl_transform *transform,
-                             mbedtls_record *rec,
-                             int (*f_rng)(void *, unsigned char *, size_t),
-                             void *p_rng )
+int mbedtls_ssl_encrypt_buf(mbedtls_ssl_context *ssl,
+                            mbedtls_ssl_transform *transform,
+                            mbedtls_record *rec,
+                            int (*f_rng)(void *, unsigned char *, size_t),
+                            void *p_rng)
 {
     mbedtls_ssl_mode_t ssl_mode;
     int auth_done = 0;
-    unsigned char * data;
+    unsigned char *data;
     /* For an explanation of the additional data length see
-    * the description of ssl_extract_add_data_from_record().
-    */
+     * the description of ssl_extract_add_data_from_record().
+     */
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
     unsigned char add_data[23 + MBEDTLS_SSL_CID_OUT_LEN_MAX];
 #else
@@ -706,46 +700,43 @@
 
     /* The PRNG is used for dynamic IV generation that's used
      * for CBC transformations in TLS 1.2. */
-#if !( defined(MBEDTLS_SSL_SOME_SUITES_USE_CBC) && \
-       defined(MBEDTLS_SSL_PROTO_TLS1_2) )
+#if !(defined(MBEDTLS_SSL_SOME_SUITES_USE_CBC) && \
+    defined(MBEDTLS_SSL_PROTO_TLS1_2))
     ((void) f_rng);
     ((void) p_rng);
 #endif
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> encrypt buf" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> encrypt buf"));
 
-    if( transform == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "no transform provided to encrypt_buf" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    if (transform == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("no transform provided to encrypt_buf"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
-    if( rec == NULL
+    if (rec == NULL
         || rec->buf == NULL
         || rec->buf_len < rec->data_offset
         || rec->buf_len - rec->data_offset < rec->data_len
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
         || rec->cid_len != 0
 #endif
-        )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad record structure provided to encrypt_buf" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        ) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad record structure provided to encrypt_buf"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-    ssl_mode = mbedtls_ssl_get_mode_from_transform( transform );
+    ssl_mode = mbedtls_ssl_get_mode_from_transform(transform);
 
     data = rec->buf + rec->data_offset;
-    post_avail = rec->buf_len - ( rec->data_len + rec->data_offset );
-    MBEDTLS_SSL_DEBUG_BUF( 4, "before encrypt: output payload",
-                           data, rec->data_len );
+    post_avail = rec->buf_len - (rec->data_len + rec->data_offset);
+    MBEDTLS_SSL_DEBUG_BUF(4, "before encrypt: output payload",
+                          data, rec->data_len);
 
-    if( rec->data_len > MBEDTLS_SSL_OUT_CONTENT_LEN )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Record content %" MBEDTLS_PRINTF_SIZET
-                                    " too large, maximum %" MBEDTLS_PRINTF_SIZET,
-                                    rec->data_len,
-                                    (size_t) MBEDTLS_SSL_OUT_CONTENT_LEN ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (rec->data_len > MBEDTLS_SSL_OUT_CONTENT_LEN) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Record content %" MBEDTLS_PRINTF_SIZET
+                                  " too large, maximum %" MBEDTLS_PRINTF_SIZET,
+                                  rec->data_len,
+                                  (size_t) MBEDTLS_SSL_OUT_CONTENT_LEN));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
     /* The following two code paths implement the (D)TLSInnerPlaintext
@@ -761,18 +752,16 @@
      * is hence no risk of double-addition of the inner plaintext.
      */
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
-    if( transform->tls_version == MBEDTLS_SSL_VERSION_TLS1_3 )
-    {
+    if (transform->tls_version == MBEDTLS_SSL_VERSION_TLS1_3) {
         size_t padding =
-            ssl_compute_padding_length( rec->data_len,
-                                        MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY );
-        if( ssl_build_inner_plaintext( data,
-                                       &rec->data_len,
-                                       post_avail,
-                                       rec->type,
-                                       padding ) != 0 )
-        {
-            return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
+            ssl_compute_padding_length(rec->data_len,
+                                       MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY);
+        if (ssl_build_inner_plaintext(data,
+                                      &rec->data_len,
+                                      post_avail,
+                                      rec->type,
+                                      padding) != 0) {
+            return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
         }
 
         rec->type = MBEDTLS_SSL_MSG_APPLICATION_DATA;
@@ -784,14 +773,13 @@
      * Add CID information
      */
     rec->cid_len = transform->out_cid_len;
-    memcpy( rec->cid, transform->out_cid, transform->out_cid_len );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "CID", rec->cid, rec->cid_len );
+    memcpy(rec->cid, transform->out_cid, transform->out_cid_len);
+    MBEDTLS_SSL_DEBUG_BUF(3, "CID", rec->cid, rec->cid_len);
 
-    if( rec->cid_len != 0 )
-    {
+    if (rec->cid_len != 0) {
         size_t padding =
-            ssl_compute_padding_length( rec->data_len,
-                                        MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY );
+            ssl_compute_padding_length(rec->data_len,
+                                       MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY);
         /*
          * Wrap plaintext into DTLSInnerPlaintext structure.
          * See ssl_build_inner_plaintext() for more information.
@@ -799,32 +787,29 @@
          * Note that this changes `rec->data_len`, and hence
          * `post_avail` needs to be recalculated afterwards.
          */
-        if( ssl_build_inner_plaintext( data,
-                        &rec->data_len,
-                        post_avail,
-                        rec->type,
-                        padding ) != 0 )
-        {
-            return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
+        if (ssl_build_inner_plaintext(data,
+                                      &rec->data_len,
+                                      post_avail,
+                                      rec->type,
+                                      padding) != 0) {
+            return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
         }
 
         rec->type = MBEDTLS_SSL_MSG_CID;
     }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
-    post_avail = rec->buf_len - ( rec->data_len + rec->data_offset );
+    post_avail = rec->buf_len - (rec->data_len + rec->data_offset);
 
     /*
      * Add MAC before if needed
      */
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_MAC)
-    if( ssl_mode == MBEDTLS_SSL_MODE_STREAM ||
-        ssl_mode == MBEDTLS_SSL_MODE_CBC )
-    {
-        if( post_avail < transform->maclen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Buffer provided for encrypted record not large enough" ) );
-            return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
+    if (ssl_mode == MBEDTLS_SSL_MODE_STREAM ||
+        ssl_mode == MBEDTLS_SSL_MODE_CBC) {
+        if (post_avail < transform->maclen) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("Buffer provided for encrypted record not large enough"));
+            return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
         }
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
         unsigned char mac[MBEDTLS_SSL_MAC_ADD];
@@ -835,66 +820,74 @@
         size_t sign_mac_length = 0;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-        ssl_extract_add_data_from_record( add_data, &add_data_len, rec,
-                                          transform->tls_version,
-                                          transform->taglen );
+        ssl_extract_add_data_from_record(add_data, &add_data_len, rec,
+                                         transform->tls_version,
+                                         transform->taglen);
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-        status = psa_mac_sign_setup( &operation, transform->psa_mac_enc,
-                                     transform->psa_mac_alg );
-        if( status != PSA_SUCCESS )
+        status = psa_mac_sign_setup(&operation, transform->psa_mac_enc,
+                                    transform->psa_mac_alg);
+        if (status != PSA_SUCCESS) {
             goto hmac_failed_etm_disabled;
+        }
 
-        status = psa_mac_update( &operation, add_data, add_data_len );
-        if( status != PSA_SUCCESS )
+        status = psa_mac_update(&operation, add_data, add_data_len);
+        if (status != PSA_SUCCESS) {
             goto hmac_failed_etm_disabled;
+        }
 
-        status = psa_mac_update( &operation, data, rec->data_len );
-        if( status != PSA_SUCCESS )
+        status = psa_mac_update(&operation, data, rec->data_len);
+        if (status != PSA_SUCCESS) {
             goto hmac_failed_etm_disabled;
+        }
 
-        status = psa_mac_sign_finish( &operation, mac, MBEDTLS_SSL_MAC_ADD,
-                                      &sign_mac_length );
-        if( status != PSA_SUCCESS )
+        status = psa_mac_sign_finish(&operation, mac, MBEDTLS_SSL_MAC_ADD,
+                                     &sign_mac_length);
+        if (status != PSA_SUCCESS) {
             goto hmac_failed_etm_disabled;
+        }
 #else
-        ret = mbedtls_md_hmac_update( &transform->md_ctx_enc, add_data,
-                                      add_data_len );
-        if( ret != 0 )
+        ret = mbedtls_md_hmac_update(&transform->md_ctx_enc, add_data,
+                                     add_data_len);
+        if (ret != 0) {
             goto hmac_failed_etm_disabled;
-        ret = mbedtls_md_hmac_update( &transform->md_ctx_enc, data, rec->data_len );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_update(&transform->md_ctx_enc, data, rec->data_len);
+        if (ret != 0) {
             goto hmac_failed_etm_disabled;
-        ret = mbedtls_md_hmac_finish( &transform->md_ctx_enc, mac );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_finish(&transform->md_ctx_enc, mac);
+        if (ret != 0) {
             goto hmac_failed_etm_disabled;
-        ret = mbedtls_md_hmac_reset( &transform->md_ctx_enc );
-        if( ret != 0 )
+        }
+        ret = mbedtls_md_hmac_reset(&transform->md_ctx_enc);
+        if (ret != 0) {
             goto hmac_failed_etm_disabled;
+        }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-        memcpy( data + rec->data_len, mac, transform->maclen );
+        memcpy(data + rec->data_len, mac, transform->maclen);
 #endif
 
-        MBEDTLS_SSL_DEBUG_BUF( 4, "computed mac", data + rec->data_len,
-                               transform->maclen );
+        MBEDTLS_SSL_DEBUG_BUF(4, "computed mac", data + rec->data_len,
+                              transform->maclen);
 
         rec->data_len += transform->maclen;
         post_avail -= transform->maclen;
         auth_done++;
 
-    hmac_failed_etm_disabled:
-        mbedtls_platform_zeroize( mac, transform->maclen );
+hmac_failed_etm_disabled:
+        mbedtls_platform_zeroize(mac, transform->maclen);
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-        ret = psa_ssl_status_to_mbedtls( status );
-        status = psa_mac_abort( &operation );
-        if( ret == 0 && status != PSA_SUCCESS )
-            ret = psa_ssl_status_to_mbedtls( status );
+        ret = psa_ssl_status_to_mbedtls(status);
+        status = psa_mac_abort(&operation);
+        if (ret == 0 && status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+        }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_hmac_xxx", ret );
-            return( ret );
+        if (ret != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_hmac_xxx", ret);
+            return ret;
         }
     }
 #endif /* MBEDTLS_SSL_SOME_SUITES_USE_MAC */
@@ -903,38 +896,34 @@
      * Encrypt
      */
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_STREAM)
-    if( ssl_mode == MBEDTLS_SSL_MODE_STREAM )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %" MBEDTLS_PRINTF_SIZET ", "
-                                    "including %d bytes of padding",
-                                    rec->data_len, 0 ) );
+    if (ssl_mode == MBEDTLS_SSL_MODE_STREAM) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("before encrypt: msglen = %" MBEDTLS_PRINTF_SIZET ", "
+                                                                                    "including %d bytes of padding",
+                                  rec->data_len, 0));
 
         /* The only supported stream cipher is "NULL",
          * so there's nothing to do here.*/
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_SOME_SUITES_USE_STREAM */
 
 #if defined(MBEDTLS_GCM_C) || \
     defined(MBEDTLS_CCM_C) || \
     defined(MBEDTLS_CHACHAPOLY_C)
-    if( ssl_mode == MBEDTLS_SSL_MODE_AEAD )
-    {
+    if (ssl_mode == MBEDTLS_SSL_MODE_AEAD) {
         unsigned char iv[12];
         unsigned char *dynamic_iv;
         size_t dynamic_iv_len;
         int dynamic_iv_is_explicit =
-            ssl_transform_aead_dynamic_iv_is_explicit( transform );
+            ssl_transform_aead_dynamic_iv_is_explicit(transform);
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
         psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
         /* Check that there's space for the authentication tag. */
-        if( post_avail < transform->taglen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Buffer provided for encrypted record not large enough" ) );
-            return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
+        if (post_avail < transform->taglen) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("Buffer provided for encrypted record not large enough"));
+            return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
         }
 
         /*
@@ -950,95 +939,89 @@
          *       record sequence number here in all cases.
          */
         dynamic_iv     = rec->ctr;
-        dynamic_iv_len = sizeof( rec->ctr );
+        dynamic_iv_len = sizeof(rec->ctr);
 
-        ssl_build_record_nonce( iv, sizeof( iv ),
-                                transform->iv_enc,
-                                transform->fixed_ivlen,
-                                dynamic_iv,
-                                dynamic_iv_len );
+        ssl_build_record_nonce(iv, sizeof(iv),
+                               transform->iv_enc,
+                               transform->fixed_ivlen,
+                               dynamic_iv,
+                               dynamic_iv_len);
 
         /*
          * Build additional data for AEAD encryption.
          * This depends on the TLS version.
          */
-        ssl_extract_add_data_from_record( add_data, &add_data_len, rec,
-                                          transform->tls_version,
-                                          transform->taglen );
+        ssl_extract_add_data_from_record(add_data, &add_data_len, rec,
+                                         transform->tls_version,
+                                         transform->taglen);
 
-        MBEDTLS_SSL_DEBUG_BUF( 4, "IV used (internal)",
-                               iv, transform->ivlen );
-        MBEDTLS_SSL_DEBUG_BUF( 4, "IV used (transmitted)",
-                               dynamic_iv,
-                               dynamic_iv_is_explicit ? dynamic_iv_len : 0 );
-        MBEDTLS_SSL_DEBUG_BUF( 4, "additional data used for AEAD",
-                               add_data, add_data_len );
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %" MBEDTLS_PRINTF_SIZET ", "
-                                    "including 0 bytes of padding",
-                                    rec->data_len ) );
+        MBEDTLS_SSL_DEBUG_BUF(4, "IV used (internal)",
+                              iv, transform->ivlen);
+        MBEDTLS_SSL_DEBUG_BUF(4, "IV used (transmitted)",
+                              dynamic_iv,
+                              dynamic_iv_is_explicit ? dynamic_iv_len : 0);
+        MBEDTLS_SSL_DEBUG_BUF(4, "additional data used for AEAD",
+                              add_data, add_data_len);
+        MBEDTLS_SSL_DEBUG_MSG(3, ("before encrypt: msglen = %" MBEDTLS_PRINTF_SIZET ", "
+                                                                                    "including 0 bytes of padding",
+                                  rec->data_len));
 
         /*
          * Encrypt and authenticate
          */
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-        status = psa_aead_encrypt( transform->psa_key_enc,
-                               transform->psa_alg,
-                               iv, transform->ivlen,
-                               add_data, add_data_len,
-                               data, rec->data_len,
-                               data, rec->buf_len - (data - rec->buf),
-                               &rec->data_len );
+        status = psa_aead_encrypt(transform->psa_key_enc,
+                                  transform->psa_alg,
+                                  iv, transform->ivlen,
+                                  add_data, add_data_len,
+                                  data, rec->data_len,
+                                  data, rec->buf_len - (data - rec->buf),
+                                  &rec->data_len);
 
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_encrypt_buf", ret );
-            return( ret );
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_encrypt_buf", ret);
+            return ret;
         }
 #else
-        if( ( ret = mbedtls_cipher_auth_encrypt_ext( &transform->cipher_ctx_enc,
-                   iv, transform->ivlen,
-                   add_data, add_data_len,
-                   data, rec->data_len,                     /* src */
-                   data, rec->buf_len - (data - rec->buf),  /* dst */
-                   &rec->data_len,
-                   transform->taglen ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_auth_encrypt_ext", ret );
-            return( ret );
+        if ((ret = mbedtls_cipher_auth_encrypt_ext(&transform->cipher_ctx_enc,
+                                                   iv, transform->ivlen,
+                                                   add_data, add_data_len,
+                                                   data, rec->data_len, /* src */
+                                                   data, rec->buf_len - (data - rec->buf), /* dst */
+                                                   &rec->data_len,
+                                                   transform->taglen)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_auth_encrypt_ext", ret);
+            return ret;
         }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-        MBEDTLS_SSL_DEBUG_BUF( 4, "after encrypt: tag",
-                               data + rec->data_len - transform->taglen,
-                               transform->taglen );
+        MBEDTLS_SSL_DEBUG_BUF(4, "after encrypt: tag",
+                              data + rec->data_len - transform->taglen,
+                              transform->taglen);
         /* Account for authentication tag. */
         post_avail -= transform->taglen;
 
         /*
          * Prefix record content with dynamic IV in case it is explicit.
          */
-        if( dynamic_iv_is_explicit != 0 )
-        {
-            if( rec->data_offset < dynamic_iv_len )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "Buffer provided for encrypted record not large enough" ) );
-                return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
+        if (dynamic_iv_is_explicit != 0) {
+            if (rec->data_offset < dynamic_iv_len) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("Buffer provided for encrypted record not large enough"));
+                return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
             }
 
-            memcpy( data - dynamic_iv_len, dynamic_iv, dynamic_iv_len );
+            memcpy(data - dynamic_iv_len, dynamic_iv, dynamic_iv_len);
             rec->data_offset -= dynamic_iv_len;
             rec->data_len    += dynamic_iv_len;
         }
 
         auth_done++;
-    }
-    else
+    } else
 #endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C || MBEDTLS_CHACHAPOLY_C */
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_CBC)
-    if( ssl_mode == MBEDTLS_SSL_MODE_CBC ||
-        ssl_mode == MBEDTLS_SSL_MODE_CBC_ETM )
-    {
+    if (ssl_mode == MBEDTLS_SSL_MODE_CBC ||
+        ssl_mode == MBEDTLS_SSL_MODE_CBC_ETM) {
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
         size_t padlen, i;
         size_t olen;
@@ -1050,19 +1033,20 @@
 
         /* Currently we're always using minimal padding
          * (up to 255 bytes would be allowed). */
-        padlen = transform->ivlen - ( rec->data_len + 1 ) % transform->ivlen;
-        if( padlen == transform->ivlen )
+        padlen = transform->ivlen - (rec->data_len + 1) % transform->ivlen;
+        if (padlen == transform->ivlen) {
             padlen = 0;
-
-        /* Check there's enough space in the buffer for the padding. */
-        if( post_avail < padlen + 1 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Buffer provided for encrypted record not large enough" ) );
-            return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
         }
 
-        for( i = 0; i <= padlen; i++ )
+        /* Check there's enough space in the buffer for the padding. */
+        if (post_avail < padlen + 1) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("Buffer provided for encrypted record not large enough"));
+            return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
+        }
+
+        for (i = 0; i <= padlen; i++) {
             data[rec->data_len + i] = (unsigned char) padlen;
+        }
 
         rec->data_len += padlen + 1;
         post_avail -= padlen + 1;
@@ -1072,96 +1056,90 @@
          * Prepend per-record IV for block cipher in TLS v1.2 as per
          * Method 1 (6.2.3.2. in RFC4346 and RFC5246)
          */
-        if( f_rng == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "No PRNG provided to encrypt_record routine" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        if (f_rng == NULL) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("No PRNG provided to encrypt_record routine"));
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
 
-        if( rec->data_offset < transform->ivlen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Buffer provided for encrypted record not large enough" ) );
-            return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
+        if (rec->data_offset < transform->ivlen) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("Buffer provided for encrypted record not large enough"));
+            return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
         }
 
         /*
          * Generate IV
          */
-        ret = f_rng( p_rng, transform->iv_enc, transform->ivlen );
-        if( ret != 0 )
-            return( ret );
+        ret = f_rng(p_rng, transform->iv_enc, transform->ivlen);
+        if (ret != 0) {
+            return ret;
+        }
 
-        memcpy( data - transform->ivlen, transform->iv_enc, transform->ivlen );
+        memcpy(data - transform->ivlen, transform->iv_enc, transform->ivlen);
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %" MBEDTLS_PRINTF_SIZET ", "
-                            "including %" MBEDTLS_PRINTF_SIZET
-                            " bytes of IV and %" MBEDTLS_PRINTF_SIZET " bytes of padding",
-                            rec->data_len, transform->ivlen,
-                            padlen + 1 ) );
+        MBEDTLS_SSL_DEBUG_MSG(3, ("before encrypt: msglen = %" MBEDTLS_PRINTF_SIZET ", "
+                                                                                    "including %"
+                                  MBEDTLS_PRINTF_SIZET
+                                  " bytes of IV and %" MBEDTLS_PRINTF_SIZET " bytes of padding",
+                                  rec->data_len, transform->ivlen,
+                                  padlen + 1));
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-        status = psa_cipher_encrypt_setup( &cipher_op,
-                                    transform->psa_key_enc, transform->psa_alg );
+        status = psa_cipher_encrypt_setup(&cipher_op,
+                                          transform->psa_key_enc, transform->psa_alg);
 
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_cipher_encrypt_setup", ret );
-            return( ret );
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_encrypt_setup", ret);
+            return ret;
         }
 
-        status = psa_cipher_set_iv( &cipher_op, transform->iv_enc, transform->ivlen );
+        status = psa_cipher_set_iv(&cipher_op, transform->iv_enc, transform->ivlen);
 
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_cipher_set_iv", ret );
-            return( ret );
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_set_iv", ret);
+            return ret;
 
         }
 
-        status = psa_cipher_update( &cipher_op,
-                                    data, rec->data_len,
-                                    data, rec->data_len, &olen );
+        status = psa_cipher_update(&cipher_op,
+                                   data, rec->data_len,
+                                   data, rec->data_len, &olen);
 
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_cipher_update", ret );
-            return( ret );
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_update", ret);
+            return ret;
 
         }
 
-        status = psa_cipher_finish( &cipher_op,
-                                    data + olen, rec->data_len - olen,
-                                    &part_len );
+        status = psa_cipher_finish(&cipher_op,
+                                   data + olen, rec->data_len - olen,
+                                   &part_len);
 
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_cipher_finish", ret );
-            return( ret );
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_finish", ret);
+            return ret;
 
         }
 
         olen += part_len;
 #else
-        if( ( ret = mbedtls_cipher_crypt( &transform->cipher_ctx_enc,
-                                   transform->iv_enc,
-                                   transform->ivlen,
-                                   data, rec->data_len,
-                                   data, &olen ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret );
-            return( ret );
+        if ((ret = mbedtls_cipher_crypt(&transform->cipher_ctx_enc,
+                                        transform->iv_enc,
+                                        transform->ivlen,
+                                        data, rec->data_len,
+                                        data, &olen)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_crypt", ret);
+            return ret;
         }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-        if( rec->data_len != olen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        if (rec->data_len != olen) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
 
         data             -= transform->ivlen;
@@ -1169,8 +1147,7 @@
         rec->data_len    += transform->ivlen;
 
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-        if( auth_done == 0 )
-        {
+        if (auth_done == 0) {
             unsigned char mac[MBEDTLS_SSL_MAC_ADD];
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
             psa_mac_operation_t operation = PSA_MAC_OPERATION_INIT;
@@ -1180,99 +1157,104 @@
             /* MAC(MAC_write_key, add_data, IV, ENC(content + padding + padding_length))
              */
 
-            if( post_avail < transform->maclen)
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "Buffer provided for encrypted record not large enough" ) );
-                return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
+            if (post_avail < transform->maclen) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("Buffer provided for encrypted record not large enough"));
+                return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
             }
 
-            ssl_extract_add_data_from_record( add_data, &add_data_len,
-                                              rec, transform->tls_version,
-                                              transform->taglen );
+            ssl_extract_add_data_from_record(add_data, &add_data_len,
+                                             rec, transform->tls_version,
+                                             transform->taglen);
 
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "using encrypt then mac" ) );
-            MBEDTLS_SSL_DEBUG_BUF( 4, "MAC'd meta-data", add_data,
-                                   add_data_len );
+            MBEDTLS_SSL_DEBUG_MSG(3, ("using encrypt then mac"));
+            MBEDTLS_SSL_DEBUG_BUF(4, "MAC'd meta-data", add_data,
+                                  add_data_len);
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-            status = psa_mac_sign_setup( &operation, transform->psa_mac_enc,
-                                         transform->psa_mac_alg );
-            if( status != PSA_SUCCESS )
+            status = psa_mac_sign_setup(&operation, transform->psa_mac_enc,
+                                        transform->psa_mac_alg);
+            if (status != PSA_SUCCESS) {
                 goto hmac_failed_etm_enabled;
+            }
 
-            status = psa_mac_update( &operation, add_data, add_data_len );
-            if( status != PSA_SUCCESS )
+            status = psa_mac_update(&operation, add_data, add_data_len);
+            if (status != PSA_SUCCESS) {
                 goto hmac_failed_etm_enabled;
+            }
 
-            status = psa_mac_update( &operation, data, rec->data_len );
-            if( status != PSA_SUCCESS )
+            status = psa_mac_update(&operation, data, rec->data_len);
+            if (status != PSA_SUCCESS) {
                 goto hmac_failed_etm_enabled;
+            }
 
-            status = psa_mac_sign_finish( &operation, mac, MBEDTLS_SSL_MAC_ADD,
-                                          &sign_mac_length );
-            if( status != PSA_SUCCESS )
+            status = psa_mac_sign_finish(&operation, mac, MBEDTLS_SSL_MAC_ADD,
+                                         &sign_mac_length);
+            if (status != PSA_SUCCESS) {
                 goto hmac_failed_etm_enabled;
+            }
 #else
 
-            ret = mbedtls_md_hmac_update( &transform->md_ctx_enc, add_data,
-                                          add_data_len );
-            if( ret != 0 )
+            ret = mbedtls_md_hmac_update(&transform->md_ctx_enc, add_data,
+                                         add_data_len);
+            if (ret != 0) {
                 goto hmac_failed_etm_enabled;
-            ret = mbedtls_md_hmac_update( &transform->md_ctx_enc,
-                                          data, rec->data_len );
-            if( ret != 0 )
+            }
+            ret = mbedtls_md_hmac_update(&transform->md_ctx_enc,
+                                         data, rec->data_len);
+            if (ret != 0) {
                 goto hmac_failed_etm_enabled;
-            ret = mbedtls_md_hmac_finish( &transform->md_ctx_enc, mac );
-            if( ret != 0 )
+            }
+            ret = mbedtls_md_hmac_finish(&transform->md_ctx_enc, mac);
+            if (ret != 0) {
                 goto hmac_failed_etm_enabled;
-            ret = mbedtls_md_hmac_reset( &transform->md_ctx_enc );
-            if( ret != 0 )
+            }
+            ret = mbedtls_md_hmac_reset(&transform->md_ctx_enc);
+            if (ret != 0) {
                 goto hmac_failed_etm_enabled;
+            }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-            memcpy( data + rec->data_len, mac, transform->maclen );
+            memcpy(data + rec->data_len, mac, transform->maclen);
 
             rec->data_len += transform->maclen;
             post_avail -= transform->maclen;
             auth_done++;
 
-        hmac_failed_etm_enabled:
-            mbedtls_platform_zeroize( mac, transform->maclen );
+hmac_failed_etm_enabled:
+            mbedtls_platform_zeroize(mac, transform->maclen);
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-            ret = psa_ssl_status_to_mbedtls( status );
-            status = psa_mac_abort( &operation );
-            if( ret == 0 && status != PSA_SUCCESS )
-                ret = psa_ssl_status_to_mbedtls( status );
+            ret = psa_ssl_status_to_mbedtls(status);
+            status = psa_mac_abort(&operation);
+            if (ret == 0 && status != PSA_SUCCESS) {
+                ret = psa_ssl_status_to_mbedtls(status);
+            }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-            if( ret != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_RET( 1, "HMAC calculation failed", ret );
-                return( ret );
+            if (ret != 0) {
+                MBEDTLS_SSL_DEBUG_RET(1, "HMAC calculation failed", ret);
+                return ret;
             }
         }
 #endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_SOME_SUITES_USE_CBC) */
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
     /* Make extra sure authentication was performed, exactly once */
-    if( auth_done != 1 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    if (auth_done != 1) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= encrypt buf" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= encrypt buf"));
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_decrypt_buf( mbedtls_ssl_context const *ssl,
-                             mbedtls_ssl_transform *transform,
-                             mbedtls_record *rec )
+int mbedtls_ssl_decrypt_buf(mbedtls_ssl_context const *ssl,
+                            mbedtls_ssl_transform *transform,
+                            mbedtls_record *rec)
 {
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_CBC) || defined(MBEDTLS_CIPHER_MODE_AEAD)
     size_t olen;
@@ -1284,10 +1266,10 @@
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_MAC)
     size_t padlen = 0, correct = 1;
 #endif
-    unsigned char* data;
+    unsigned char *data;
     /* For an explanation of the additional data length see
-    * the description of ssl_extract_add_data_from_record().
-    */
+     * the description of ssl_extract_add_data_from_record().
+     */
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
     unsigned char add_data[23 + MBEDTLS_SSL_CID_IN_LEN_MAX];
 #else
@@ -1300,43 +1282,38 @@
     ((void) ssl);
 #endif
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> decrypt buf" ) );
-    if( rec == NULL                     ||
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> decrypt buf"));
+    if (rec == NULL                     ||
         rec->buf == NULL                ||
         rec->buf_len < rec->data_offset ||
-        rec->buf_len - rec->data_offset < rec->data_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad record structure provided to decrypt_buf" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        rec->buf_len - rec->data_offset < rec->data_len) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad record structure provided to decrypt_buf"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
     data = rec->buf + rec->data_offset;
-    ssl_mode = mbedtls_ssl_get_mode_from_transform( transform );
+    ssl_mode = mbedtls_ssl_get_mode_from_transform(transform);
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
     /*
      * Match record's CID with incoming CID.
      */
-    if( rec->cid_len != transform->in_cid_len ||
-        memcmp( rec->cid, transform->in_cid, rec->cid_len ) != 0 )
-    {
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_CID );
+    if (rec->cid_len != transform->in_cid_len ||
+        memcmp(rec->cid, transform->in_cid, rec->cid_len) != 0) {
+        return MBEDTLS_ERR_SSL_UNEXPECTED_CID;
     }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_STREAM)
-    if( ssl_mode == MBEDTLS_SSL_MODE_STREAM )
-    {
+    if (ssl_mode == MBEDTLS_SSL_MODE_STREAM) {
         /* The only supported stream cipher is "NULL",
          * so there's nothing to do here.*/
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_SOME_SUITES_USE_STREAM */
 #if defined(MBEDTLS_GCM_C) || \
     defined(MBEDTLS_CCM_C) || \
     defined(MBEDTLS_CHACHAPOLY_C)
-    if( ssl_mode == MBEDTLS_SSL_MODE_AEAD )
-    {
+    if (ssl_mode == MBEDTLS_SSL_MODE_AEAD) {
         unsigned char iv[12];
         unsigned char *dynamic_iv;
         size_t dynamic_iv_len;
@@ -1352,57 +1329,52 @@
          *       can be chosen freely - in particular, it need not
          *       agree with the record sequence number.
          */
-        dynamic_iv_len = sizeof( rec->ctr );
-        if( ssl_transform_aead_dynamic_iv_is_explicit( transform ) == 1 )
-        {
-            if( rec->data_len < dynamic_iv_len )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%" MBEDTLS_PRINTF_SIZET
-                                            " ) < explicit_iv_len (%" MBEDTLS_PRINTF_SIZET ") ",
-                                            rec->data_len,
-                                            dynamic_iv_len ) );
-                return( MBEDTLS_ERR_SSL_INVALID_MAC );
+        dynamic_iv_len = sizeof(rec->ctr);
+        if (ssl_transform_aead_dynamic_iv_is_explicit(transform) == 1) {
+            if (rec->data_len < dynamic_iv_len) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("msglen (%" MBEDTLS_PRINTF_SIZET
+                                          " ) < explicit_iv_len (%" MBEDTLS_PRINTF_SIZET ") ",
+                                          rec->data_len,
+                                          dynamic_iv_len));
+                return MBEDTLS_ERR_SSL_INVALID_MAC;
             }
             dynamic_iv = data;
 
             data += dynamic_iv_len;
             rec->data_offset += dynamic_iv_len;
             rec->data_len    -= dynamic_iv_len;
-        }
-        else
-        {
+        } else {
             dynamic_iv = rec->ctr;
         }
 
         /* Check that there's space for the authentication tag. */
-        if( rec->data_len < transform->taglen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%" MBEDTLS_PRINTF_SIZET
-                                        ") < taglen (%" MBEDTLS_PRINTF_SIZET ") ",
-                                        rec->data_len,
-                                        transform->taglen ) );
-            return( MBEDTLS_ERR_SSL_INVALID_MAC );
+        if (rec->data_len < transform->taglen) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("msglen (%" MBEDTLS_PRINTF_SIZET
+                                      ") < taglen (%" MBEDTLS_PRINTF_SIZET ") ",
+                                      rec->data_len,
+                                      transform->taglen));
+            return MBEDTLS_ERR_SSL_INVALID_MAC;
         }
         rec->data_len -= transform->taglen;
 
         /*
          * Prepare nonce from dynamic and static parts.
          */
-        ssl_build_record_nonce( iv, sizeof( iv ),
-                                transform->iv_dec,
-                                transform->fixed_ivlen,
-                                dynamic_iv,
-                                dynamic_iv_len );
+        ssl_build_record_nonce(iv, sizeof(iv),
+                               transform->iv_dec,
+                               transform->fixed_ivlen,
+                               dynamic_iv,
+                               dynamic_iv_len);
 
         /*
          * Build additional data for AEAD encryption.
          * This depends on the TLS version.
          */
-        ssl_extract_add_data_from_record( add_data, &add_data_len, rec,
-                                          transform->tls_version,
-                                          transform->taglen );
-        MBEDTLS_SSL_DEBUG_BUF( 4, "additional data used for AEAD",
-                               add_data, add_data_len );
+        ssl_extract_add_data_from_record(add_data, &add_data_len, rec,
+                                         transform->tls_version,
+                                         transform->taglen);
+        MBEDTLS_SSL_DEBUG_BUF(4, "additional data used for AEAD",
+                              add_data, add_data_len);
 
         /* Because of the check above, we know that there are
          * explicit_iv_len Bytes preceding data, and taglen
@@ -1410,60 +1382,56 @@
          * the debug message and the invocation of
          * mbedtls_cipher_auth_decrypt_ext() below. */
 
-        MBEDTLS_SSL_DEBUG_BUF( 4, "IV used", iv, transform->ivlen );
-        MBEDTLS_SSL_DEBUG_BUF( 4, "TAG used", data + rec->data_len,
-                               transform->taglen );
+        MBEDTLS_SSL_DEBUG_BUF(4, "IV used", iv, transform->ivlen);
+        MBEDTLS_SSL_DEBUG_BUF(4, "TAG used", data + rec->data_len,
+                              transform->taglen);
 
         /*
          * Decrypt and authenticate
          */
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-        status = psa_aead_decrypt( transform->psa_key_dec,
-                               transform->psa_alg,
-                               iv, transform->ivlen,
-                               add_data, add_data_len,
-                               data, rec->data_len + transform->taglen,
-                               data, rec->buf_len - (data - rec->buf),
-                               &olen );
+        status = psa_aead_decrypt(transform->psa_key_dec,
+                                  transform->psa_alg,
+                                  iv, transform->ivlen,
+                                  add_data, add_data_len,
+                                  data, rec->data_len + transform->taglen,
+                                  data, rec->buf_len - (data - rec->buf),
+                                  &olen);
 
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_aead_decrypt", ret );
-            return( ret );
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_aead_decrypt", ret);
+            return ret;
         }
 #else
-        if( ( ret = mbedtls_cipher_auth_decrypt_ext( &transform->cipher_ctx_dec,
-                  iv, transform->ivlen,
-                  add_data, add_data_len,
-                  data, rec->data_len + transform->taglen,          /* src */
-                  data, rec->buf_len - (data - rec->buf), &olen,    /* dst */
-                  transform->taglen ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_auth_decrypt_ext", ret );
+        if ((ret = mbedtls_cipher_auth_decrypt_ext(&transform->cipher_ctx_dec,
+                                                   iv, transform->ivlen,
+                                                   add_data, add_data_len,
+                                                   data, rec->data_len + transform->taglen, /* src */
+                                                   data, rec->buf_len - (data - rec->buf), &olen, /* dst */
+                                                   transform->taglen)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_auth_decrypt_ext", ret);
 
-            if( ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED )
-                return( MBEDTLS_ERR_SSL_INVALID_MAC );
+            if (ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED) {
+                return MBEDTLS_ERR_SSL_INVALID_MAC;
+            }
 
-            return( ret );
+            return ret;
         }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
         auth_done++;
 
         /* Double-check that AEAD decryption doesn't change content length. */
-        if( olen != rec->data_len )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        if (olen != rec->data_len) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
-    }
-    else
+    } else
 #endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C */
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_CBC)
-    if( ssl_mode == MBEDTLS_SSL_MODE_CBC ||
-        ssl_mode == MBEDTLS_SSL_MODE_CBC_ETM )
-    {
+    if (ssl_mode == MBEDTLS_SSL_MODE_CBC ||
+        ssl_mode == MBEDTLS_SSL_MODE_CBC_ETM) {
         size_t minlen = 0;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
         psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
@@ -1500,31 +1468,30 @@
          * lower bound minlen + maclen + 1 on the record size, which
          * we test for in the second check below.
          */
-        if( rec->data_len < minlen + transform->ivlen ||
-            rec->data_len < minlen + transform->maclen + 1 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%" MBEDTLS_PRINTF_SIZET
-                                        ") < max( ivlen(%" MBEDTLS_PRINTF_SIZET
-                                        "), maclen (%" MBEDTLS_PRINTF_SIZET ") "
-                                "+ 1 ) ( + expl IV )", rec->data_len,
-                                transform->ivlen,
-                                transform->maclen ) );
-            return( MBEDTLS_ERR_SSL_INVALID_MAC );
+        if (rec->data_len < minlen + transform->ivlen ||
+            rec->data_len < minlen + transform->maclen + 1) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("msglen (%" MBEDTLS_PRINTF_SIZET
+                                      ") < max( ivlen(%" MBEDTLS_PRINTF_SIZET
+                                      "), maclen (%" MBEDTLS_PRINTF_SIZET ") "
+                                                                          "+ 1 ) ( + expl IV )",
+                                      rec->data_len,
+                                      transform->ivlen,
+                                      transform->maclen));
+            return MBEDTLS_ERR_SSL_INVALID_MAC;
         }
 
         /*
          * Authenticate before decrypt if enabled
          */
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-        if( ssl_mode == MBEDTLS_SSL_MODE_CBC_ETM )
-        {
+        if (ssl_mode == MBEDTLS_SSL_MODE_CBC_ETM) {
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
             psa_mac_operation_t operation = PSA_MAC_OPERATION_INIT;
 #else
             unsigned char mac_expect[MBEDTLS_SSL_MAC_ADD];
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "using encrypt then mac" ) );
+            MBEDTLS_SSL_DEBUG_MSG(3, ("using encrypt then mac"));
 
             /* Update data_len in tandem with add_data.
              *
@@ -1537,78 +1504,86 @@
              *
              * Further, we still know that data_len > minlen */
             rec->data_len -= transform->maclen;
-            ssl_extract_add_data_from_record( add_data, &add_data_len, rec,
-                                              transform->tls_version,
-                                              transform->taglen );
+            ssl_extract_add_data_from_record(add_data, &add_data_len, rec,
+                                             transform->tls_version,
+                                             transform->taglen);
 
             /* Calculate expected MAC. */
-            MBEDTLS_SSL_DEBUG_BUF( 4, "MAC'd meta-data", add_data,
-                                   add_data_len );
+            MBEDTLS_SSL_DEBUG_BUF(4, "MAC'd meta-data", add_data,
+                                  add_data_len);
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-            status = psa_mac_verify_setup( &operation, transform->psa_mac_dec,
-                                           transform->psa_mac_alg );
-            if( status != PSA_SUCCESS )
+            status = psa_mac_verify_setup(&operation, transform->psa_mac_dec,
+                                          transform->psa_mac_alg);
+            if (status != PSA_SUCCESS) {
                 goto hmac_failed_etm_enabled;
+            }
 
-            status = psa_mac_update( &operation, add_data, add_data_len );
-            if( status != PSA_SUCCESS )
+            status = psa_mac_update(&operation, add_data, add_data_len);
+            if (status != PSA_SUCCESS) {
                 goto hmac_failed_etm_enabled;
+            }
 
-            status = psa_mac_update( &operation, data, rec->data_len );
-            if( status != PSA_SUCCESS )
+            status = psa_mac_update(&operation, data, rec->data_len);
+            if (status != PSA_SUCCESS) {
                 goto hmac_failed_etm_enabled;
+            }
 
             /* Compare expected MAC with MAC at the end of the record. */
-            status = psa_mac_verify_finish( &operation, data + rec->data_len,
-                                            transform->maclen );
-            if( status != PSA_SUCCESS )
+            status = psa_mac_verify_finish(&operation, data + rec->data_len,
+                                           transform->maclen);
+            if (status != PSA_SUCCESS) {
                 goto hmac_failed_etm_enabled;
+            }
 #else
-            ret = mbedtls_md_hmac_update( &transform->md_ctx_dec, add_data,
-                                          add_data_len );
-            if( ret != 0 )
+            ret = mbedtls_md_hmac_update(&transform->md_ctx_dec, add_data,
+                                         add_data_len);
+            if (ret != 0) {
                 goto hmac_failed_etm_enabled;
-            ret = mbedtls_md_hmac_update( &transform->md_ctx_dec,
-                                    data, rec->data_len );
-            if( ret != 0 )
+            }
+            ret = mbedtls_md_hmac_update(&transform->md_ctx_dec,
+                                         data, rec->data_len);
+            if (ret != 0) {
                 goto hmac_failed_etm_enabled;
-            ret = mbedtls_md_hmac_finish( &transform->md_ctx_dec, mac_expect );
-            if( ret != 0 )
+            }
+            ret = mbedtls_md_hmac_finish(&transform->md_ctx_dec, mac_expect);
+            if (ret != 0) {
                 goto hmac_failed_etm_enabled;
-            ret = mbedtls_md_hmac_reset( &transform->md_ctx_dec );
-            if( ret != 0 )
+            }
+            ret = mbedtls_md_hmac_reset(&transform->md_ctx_dec);
+            if (ret != 0) {
                 goto hmac_failed_etm_enabled;
+            }
 
-            MBEDTLS_SSL_DEBUG_BUF( 4, "message  mac", data + rec->data_len,
-                                   transform->maclen );
-            MBEDTLS_SSL_DEBUG_BUF( 4, "expected mac", mac_expect,
-                                   transform->maclen );
+            MBEDTLS_SSL_DEBUG_BUF(4, "message  mac", data + rec->data_len,
+                                  transform->maclen);
+            MBEDTLS_SSL_DEBUG_BUF(4, "expected mac", mac_expect,
+                                  transform->maclen);
 
             /* Compare expected MAC with MAC at the end of the record. */
-            if( mbedtls_ct_memcmp( data + rec->data_len, mac_expect,
-                                              transform->maclen ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "message mac does not match" ) );
+            if (mbedtls_ct_memcmp(data + rec->data_len, mac_expect,
+                                  transform->maclen) != 0) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("message mac does not match"));
                 ret = MBEDTLS_ERR_SSL_INVALID_MAC;
                 goto hmac_failed_etm_enabled;
             }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
             auth_done++;
 
-        hmac_failed_etm_enabled:
+hmac_failed_etm_enabled:
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-            ret = psa_ssl_status_to_mbedtls( status );
-            status = psa_mac_abort( &operation );
-            if( ret == 0 && status != PSA_SUCCESS )
-                ret = psa_ssl_status_to_mbedtls( status );
+            ret = psa_ssl_status_to_mbedtls(status);
+            status = psa_mac_abort(&operation);
+            if (ret == 0 && status != PSA_SUCCESS) {
+                ret = psa_ssl_status_to_mbedtls(status);
+            }
 #else
-            mbedtls_platform_zeroize( mac_expect, transform->maclen );
+            mbedtls_platform_zeroize(mac_expect, transform->maclen);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-            if( ret != 0 )
-            {
-                if( ret != MBEDTLS_ERR_SSL_INVALID_MAC )
-                    MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_hmac_xxx", ret );
-                return( ret );
+            if (ret != 0) {
+                if (ret != MBEDTLS_ERR_SSL_INVALID_MAC) {
+                    MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_hmac_xxx", ret);
+                }
+                return ret;
             }
         }
 #endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
@@ -1620,12 +1595,11 @@
         /* We know from above that data_len > minlen >= 0,
          * so the following check in particular implies that
          * data_len >= minlen + ivlen ( = minlen or 2 * minlen ). */
-        if( rec->data_len % transform->ivlen != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%" MBEDTLS_PRINTF_SIZET
-                                        ") %% ivlen (%" MBEDTLS_PRINTF_SIZET ") != 0",
-                                        rec->data_len, transform->ivlen ) );
-            return( MBEDTLS_ERR_SSL_INVALID_MAC );
+        if (rec->data_len % transform->ivlen != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("msglen (%" MBEDTLS_PRINTF_SIZET
+                                      ") %% ivlen (%" MBEDTLS_PRINTF_SIZET ") != 0",
+                                      rec->data_len, transform->ivlen));
+            return MBEDTLS_ERR_SSL_INVALID_MAC;
         }
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
@@ -1633,7 +1607,7 @@
          * Initialize for prepended IV for block cipher in TLS v1.2
          */
         /* Safe because data_len >= minlen + ivlen = 2 * ivlen. */
-        memcpy( transform->iv_dec, data, transform->ivlen );
+        memcpy(transform->iv_dec, data, transform->ivlen);
 
         data += transform->ivlen;
         rec->data_offset += transform->ivlen;
@@ -1643,64 +1617,58 @@
         /* We still have data_len % ivlen == 0 and data_len >= ivlen here. */
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-        status = psa_cipher_decrypt_setup( &cipher_op,
-                                    transform->psa_key_dec, transform->psa_alg );
+        status = psa_cipher_decrypt_setup(&cipher_op,
+                                          transform->psa_key_dec, transform->psa_alg);
 
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_cipher_decrypt_setup", ret );
-            return( ret );
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_decrypt_setup", ret);
+            return ret;
         }
 
-        status = psa_cipher_set_iv( &cipher_op, transform->iv_dec, transform->ivlen );
+        status = psa_cipher_set_iv(&cipher_op, transform->iv_dec, transform->ivlen);
 
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_cipher_set_iv", ret );
-            return( ret );
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_set_iv", ret);
+            return ret;
         }
 
-        status = psa_cipher_update( &cipher_op,
-                                    data, rec->data_len,
-                                    data, rec->data_len, &olen );
+        status = psa_cipher_update(&cipher_op,
+                                   data, rec->data_len,
+                                   data, rec->data_len, &olen);
 
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_cipher_update", ret );
-            return( ret );
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_update", ret);
+            return ret;
         }
 
-        status = psa_cipher_finish( &cipher_op,
-                                    data + olen, rec->data_len - olen,
-                                    &part_len );
+        status = psa_cipher_finish(&cipher_op,
+                                   data + olen, rec->data_len - olen,
+                                   &part_len);
 
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_cipher_finish", ret );
-            return( ret );
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_finish", ret);
+            return ret;
         }
 
         olen += part_len;
 #else
 
-        if( ( ret = mbedtls_cipher_crypt( &transform->cipher_ctx_dec,
-                                   transform->iv_dec, transform->ivlen,
-                                   data, rec->data_len, data, &olen ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret );
-            return( ret );
+        if ((ret = mbedtls_cipher_crypt(&transform->cipher_ctx_dec,
+                                        transform->iv_dec, transform->ivlen,
+                                        data, rec->data_len, data, &olen)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_cipher_crypt", ret);
+            return ret;
         }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
         /* Double-check that length hasn't changed during decryption. */
-        if( rec->data_len != olen )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        if (rec->data_len != olen) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
 
         /* Safe since data_len >= minlen + maclen + 1, so after having
@@ -1709,31 +1677,27 @@
          * >= ivlen ). */
         padlen = data[rec->data_len - 1];
 
-        if( auth_done == 1 )
-        {
+        if (auth_done == 1) {
             const size_t mask = mbedtls_ct_size_mask_ge(
-                                rec->data_len,
-                                padlen + 1 );
+                rec->data_len,
+                padlen + 1);
             correct &= mask;
             padlen  &= mask;
-        }
-        else
-        {
+        } else {
 #if defined(MBEDTLS_SSL_DEBUG_ALL)
-            if( rec->data_len < transform->maclen + padlen + 1 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%" MBEDTLS_PRINTF_SIZET
-                                            ") < maclen (%" MBEDTLS_PRINTF_SIZET
-                                            ") + padlen (%" MBEDTLS_PRINTF_SIZET ")",
-                                            rec->data_len,
-                                            transform->maclen,
-                                            padlen + 1 ) );
+            if (rec->data_len < transform->maclen + padlen + 1) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("msglen (%" MBEDTLS_PRINTF_SIZET
+                                          ") < maclen (%" MBEDTLS_PRINTF_SIZET
+                                          ") + padlen (%" MBEDTLS_PRINTF_SIZET ")",
+                                          rec->data_len,
+                                          transform->maclen,
+                                          padlen + 1));
             }
 #endif
 
             const size_t mask = mbedtls_ct_size_mask_ge(
-                                rec->data_len,
-                                transform->maclen + padlen + 1 );
+                rec->data_len,
+                transform->maclen + padlen + 1);
             correct &= mask;
             padlen  &= mask;
         }
@@ -1745,38 +1709,38 @@
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
         /* The padding check involves a series of up to 256
-            * consecutive memory reads at the end of the record
-            * plaintext buffer. In order to hide the length and
-            * validity of the padding, always perform exactly
-            * `min(256,plaintext_len)` reads (but take into account
-            * only the last `padlen` bytes for the padding check). */
+         * consecutive memory reads at the end of the record
+         * plaintext buffer. In order to hide the length and
+         * validity of the padding, always perform exactly
+         * `min(256,plaintext_len)` reads (but take into account
+         * only the last `padlen` bytes for the padding check). */
         size_t pad_count = 0;
-        volatile unsigned char* const check = data;
+        volatile unsigned char * const check = data;
 
         /* Index of first padding byte; it has been ensured above
-            * that the subtraction is safe. */
+         * that the subtraction is safe. */
         size_t const padding_idx = rec->data_len - padlen;
         size_t const num_checks = rec->data_len <= 256 ? rec->data_len : 256;
         size_t const start_idx = rec->data_len - num_checks;
         size_t idx;
 
-        for( idx = start_idx; idx < rec->data_len; idx++ )
-        {
+        for (idx = start_idx; idx < rec->data_len; idx++) {
             /* pad_count += (idx >= padding_idx) &&
-                *              (check[idx] == padlen - 1);
-                */
-            const size_t mask = mbedtls_ct_size_mask_ge( idx, padding_idx );
-            const size_t equal = mbedtls_ct_size_bool_eq( check[idx],
-                                                          padlen - 1 );
+             *              (check[idx] == padlen - 1);
+             */
+            const size_t mask = mbedtls_ct_size_mask_ge(idx, padding_idx);
+            const size_t equal = mbedtls_ct_size_bool_eq(check[idx],
+                                                         padlen - 1);
             pad_count += mask & equal;
         }
-        correct &= mbedtls_ct_size_bool_eq( pad_count, padlen );
+        correct &= mbedtls_ct_size_bool_eq(pad_count, padlen);
 
 #if defined(MBEDTLS_SSL_DEBUG_ALL)
-        if( padlen > 0 && correct == 0 )
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad padding byte detected" ) );
+        if (padlen > 0 && correct == 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad padding byte detected"));
+        }
 #endif
-        padlen &= mbedtls_ct_size_mask( correct );
+        padlen &= mbedtls_ct_size_mask(correct);
 
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
@@ -1785,17 +1749,16 @@
          * padlen hasn't been changed and the previous assertion
          * data_len >= padlen still holds. */
         rec->data_len -= padlen;
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_SOME_SUITES_USE_CBC */
     {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
 #if defined(MBEDTLS_SSL_DEBUG_ALL)
-    MBEDTLS_SSL_DEBUG_BUF( 4, "raw buffer after decryption",
-                           data, rec->data_len );
+    MBEDTLS_SSL_DEBUG_BUF(4, "raw buffer after decryption",
+                          data, rec->data_len);
 #endif
 
     /*
@@ -1803,8 +1766,7 @@
      * Compute the MAC regardless of the padding result (RFC4346, CBCTIME).
      */
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_MAC)
-    if( auth_done == 0 )
-    {
+    if (auth_done == 0) {
         unsigned char mac_expect[MBEDTLS_SSL_MAC_ADD] = { 0 };
         unsigned char mac_peer[MBEDTLS_SSL_MAC_ADD] = { 0 };
 
@@ -1822,109 +1784,108 @@
          * hence data_len >= maclen in any case.
          */
         rec->data_len -= transform->maclen;
-        ssl_extract_add_data_from_record( add_data, &add_data_len, rec,
-                                          transform->tls_version,
-                                          transform->taglen );
+        ssl_extract_add_data_from_record(add_data, &add_data_len, rec,
+                                         transform->tls_version,
+                                         transform->taglen);
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
         /*
-        * The next two sizes are the minimum and maximum values of
-        * data_len over all padlen values.
-        *
-        * They're independent of padlen, since we previously did
-        * data_len -= padlen.
-        *
-        * Note that max_len + maclen is never more than the buffer
-        * length, as we previously did in_msglen -= maclen too.
-        */
+         * The next two sizes are the minimum and maximum values of
+         * data_len over all padlen values.
+         *
+         * They're independent of padlen, since we previously did
+         * data_len -= padlen.
+         *
+         * Note that max_len + maclen is never more than the buffer
+         * length, as we previously did in_msglen -= maclen too.
+         */
         const size_t max_len = rec->data_len + padlen;
-        const size_t min_len = ( max_len > 256 ) ? max_len - 256 : 0;
+        const size_t min_len = (max_len > 256) ? max_len - 256 : 0;
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-        ret = mbedtls_ct_hmac( transform->psa_mac_dec,
-                               transform->psa_mac_alg,
-                               add_data, add_data_len,
-                               data, rec->data_len, min_len, max_len,
-                               mac_expect );
+        ret = mbedtls_ct_hmac(transform->psa_mac_dec,
+                              transform->psa_mac_alg,
+                              add_data, add_data_len,
+                              data, rec->data_len, min_len, max_len,
+                              mac_expect);
 #else
-        ret = mbedtls_ct_hmac( &transform->md_ctx_dec,
-                               add_data, add_data_len,
-                               data, rec->data_len, min_len, max_len,
-                               mac_expect );
+        ret = mbedtls_ct_hmac(&transform->md_ctx_dec,
+                              add_data, add_data_len,
+                              data, rec->data_len, min_len, max_len,
+                              mac_expect);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ct_hmac", ret );
+        if (ret != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ct_hmac", ret);
             goto hmac_failed_etm_disabled;
         }
 
-        mbedtls_ct_memcpy_offset( mac_peer, data,
-                                  rec->data_len,
-                                  min_len, max_len,
-                                  transform->maclen );
+        mbedtls_ct_memcpy_offset(mac_peer, data,
+                                 rec->data_len,
+                                 min_len, max_len,
+                                 transform->maclen);
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
 #if defined(MBEDTLS_SSL_DEBUG_ALL)
-        MBEDTLS_SSL_DEBUG_BUF( 4, "expected mac", mac_expect, transform->maclen );
-        MBEDTLS_SSL_DEBUG_BUF( 4, "message  mac", mac_peer, transform->maclen );
+        MBEDTLS_SSL_DEBUG_BUF(4, "expected mac", mac_expect, transform->maclen);
+        MBEDTLS_SSL_DEBUG_BUF(4, "message  mac", mac_peer, transform->maclen);
 #endif
 
-        if( mbedtls_ct_memcmp( mac_peer, mac_expect,
-                                          transform->maclen ) != 0 )
-        {
+        if (mbedtls_ct_memcmp(mac_peer, mac_expect,
+                              transform->maclen) != 0) {
 #if defined(MBEDTLS_SSL_DEBUG_ALL)
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "message mac does not match" ) );
+            MBEDTLS_SSL_DEBUG_MSG(1, ("message mac does not match"));
 #endif
             correct = 0;
         }
         auth_done++;
 
-    hmac_failed_etm_disabled:
-        mbedtls_platform_zeroize( mac_peer, transform->maclen );
-        mbedtls_platform_zeroize( mac_expect, transform->maclen );
-        if( ret != 0 )
-            return( ret );
+hmac_failed_etm_disabled:
+        mbedtls_platform_zeroize(mac_peer, transform->maclen);
+        mbedtls_platform_zeroize(mac_expect, transform->maclen);
+        if (ret != 0) {
+            return ret;
+        }
     }
 
     /*
      * Finally check the correct flag
      */
-    if( correct == 0 )
-        return( MBEDTLS_ERR_SSL_INVALID_MAC );
+    if (correct == 0) {
+        return MBEDTLS_ERR_SSL_INVALID_MAC;
+    }
 #endif /* MBEDTLS_SSL_SOME_SUITES_USE_MAC */
 
     /* Make extra sure authentication was performed, exactly once */
-    if( auth_done != 1 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    if (auth_done != 1) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
-    if( transform->tls_version == MBEDTLS_SSL_VERSION_TLS1_3 )
-    {
+    if (transform->tls_version == MBEDTLS_SSL_VERSION_TLS1_3) {
         /* Remove inner padding and infer true content type. */
-        ret = ssl_parse_inner_plaintext( data, &rec->data_len,
-                                         &rec->type );
+        ret = ssl_parse_inner_plaintext(data, &rec->data_len,
+                                        &rec->type);
 
-        if( ret != 0 )
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+        if (ret != 0) {
+            return MBEDTLS_ERR_SSL_INVALID_RECORD;
+        }
     }
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
-    if( rec->cid_len != 0 )
-    {
-        ret = ssl_parse_inner_plaintext( data, &rec->data_len,
-                                         &rec->type );
-        if( ret != 0 )
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+    if (rec->cid_len != 0) {
+        ret = ssl_parse_inner_plaintext(data, &rec->data_len,
+                                        &rec->type);
+        if (ret != 0) {
+            return MBEDTLS_ERR_SSL_INVALID_RECORD;
+        }
     }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= decrypt buf" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= decrypt buf"));
 
-    return( 0 );
+    return 0;
 }
 
 #undef MAC_NONE
@@ -1946,7 +1907,7 @@
  * For DTLS, it is up to the caller to set ssl->next_record_offset when
  * they're done reading a record.
  */
-int mbedtls_ssl_fetch_input( mbedtls_ssl_context *ssl, size_t nb_want )
+int mbedtls_ssl_fetch_input(mbedtls_ssl_context *ssl, size_t nb_want)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t len;
@@ -1956,23 +1917,20 @@
     size_t in_buf_len = MBEDTLS_SSL_IN_BUFFER_LEN;
 #endif
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> fetch input" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> fetch input"));
 
-    if( ssl->f_recv == NULL && ssl->f_recv_timeout == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() " ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->f_recv == NULL && ssl->f_recv_timeout == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Bad usage of mbedtls_ssl_set_bio() "));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
-    if( nb_want > in_buf_len - (size_t)( ssl->in_hdr - ssl->in_buf ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "requesting more data than fits" ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (nb_want > in_buf_len - (size_t) (ssl->in_hdr - ssl->in_buf)) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("requesting more data than fits"));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         uint32_t timeout;
 
         /*
@@ -1985,40 +1943,36 @@
         /*
          * Move to the next record in the already read datagram if applicable
          */
-        if( ssl->next_record_offset != 0 )
-        {
-            if( ssl->in_left < ssl->next_record_offset )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-                return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        if (ssl->next_record_offset != 0) {
+            if (ssl->in_left < ssl->next_record_offset) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+                return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
             }
 
             ssl->in_left -= ssl->next_record_offset;
 
-            if( ssl->in_left != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "next record in same datagram, offset: %"
-                                            MBEDTLS_PRINTF_SIZET,
-                                    ssl->next_record_offset ) );
-                memmove( ssl->in_hdr,
-                         ssl->in_hdr + ssl->next_record_offset,
-                         ssl->in_left );
+            if (ssl->in_left != 0) {
+                MBEDTLS_SSL_DEBUG_MSG(2, ("next record in same datagram, offset: %"
+                                          MBEDTLS_PRINTF_SIZET,
+                                          ssl->next_record_offset));
+                memmove(ssl->in_hdr,
+                        ssl->in_hdr + ssl->next_record_offset,
+                        ssl->in_left);
             }
 
             ssl->next_record_offset = 0;
         }
 
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %" MBEDTLS_PRINTF_SIZET
-                                    ", nb_want: %" MBEDTLS_PRINTF_SIZET,
-                       ssl->in_left, nb_want ) );
+        MBEDTLS_SSL_DEBUG_MSG(2, ("in_left: %" MBEDTLS_PRINTF_SIZET
+                                  ", nb_want: %" MBEDTLS_PRINTF_SIZET,
+                                  ssl->in_left, nb_want));
 
         /*
          * Done if we already have enough data.
          */
-        if( nb_want <= ssl->in_left)
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= fetch input" ) );
-            return( 0 );
+        if (nb_want <= ssl->in_left) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("<= fetch input"));
+            return 0;
         }
 
         /*
@@ -2026,10 +1980,9 @@
          * are not at the beginning of a new record, the caller did something
          * wrong.
          */
-        if( ssl->in_left != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        if (ssl->in_left != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
 
         /*
@@ -2037,195 +1990,182 @@
          * This avoids by-passing the timer when repeatedly receiving messages
          * that will end up being dropped.
          */
-        if( mbedtls_ssl_check_timer( ssl ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "timer has expired" ) );
+        if (mbedtls_ssl_check_timer(ssl) != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("timer has expired"));
             ret = MBEDTLS_ERR_SSL_TIMEOUT;
-        }
-        else
-        {
-            len = in_buf_len - ( ssl->in_hdr - ssl->in_buf );
+        } else {
+            len = in_buf_len - (ssl->in_hdr - ssl->in_buf);
 
-            if( mbedtls_ssl_is_handshake_over( ssl ) == 0 )
+            if (mbedtls_ssl_is_handshake_over(ssl) == 0) {
                 timeout = ssl->handshake->retransmit_timeout;
-            else
+            } else {
                 timeout = ssl->conf->read_timeout;
+            }
 
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "f_recv_timeout: %lu ms", (unsigned long) timeout ) );
+            MBEDTLS_SSL_DEBUG_MSG(3, ("f_recv_timeout: %lu ms", (unsigned long) timeout));
 
-            if( ssl->f_recv_timeout != NULL )
-                ret = ssl->f_recv_timeout( ssl->p_bio, ssl->in_hdr, len,
-                                                                    timeout );
-            else
-                ret = ssl->f_recv( ssl->p_bio, ssl->in_hdr, len );
+            if (ssl->f_recv_timeout != NULL) {
+                ret = ssl->f_recv_timeout(ssl->p_bio, ssl->in_hdr, len,
+                                          timeout);
+            } else {
+                ret = ssl->f_recv(ssl->p_bio, ssl->in_hdr, len);
+            }
 
-            MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_recv(_timeout)", ret );
+            MBEDTLS_SSL_DEBUG_RET(2, "ssl->f_recv(_timeout)", ret);
 
-            if( ret == 0 )
-                return( MBEDTLS_ERR_SSL_CONN_EOF );
+            if (ret == 0) {
+                return MBEDTLS_ERR_SSL_CONN_EOF;
+            }
         }
 
-        if( ret == MBEDTLS_ERR_SSL_TIMEOUT )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "timeout" ) );
-            mbedtls_ssl_set_timer( ssl, 0 );
+        if (ret == MBEDTLS_ERR_SSL_TIMEOUT) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("timeout"));
+            mbedtls_ssl_set_timer(ssl, 0);
 
-            if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-            {
-                if( ssl_double_retransmit_timeout( ssl ) != 0 )
-                {
-                    MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake timeout" ) );
-                    return( MBEDTLS_ERR_SSL_TIMEOUT );
+            if (ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) {
+                if (ssl_double_retransmit_timeout(ssl) != 0) {
+                    MBEDTLS_SSL_DEBUG_MSG(1, ("handshake timeout"));
+                    return MBEDTLS_ERR_SSL_TIMEOUT;
                 }
 
-                if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 )
-                {
-                    MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend", ret );
-                    return( ret );
+                if ((ret = mbedtls_ssl_resend(ssl)) != 0) {
+                    MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_resend", ret);
+                    return ret;
                 }
 
-                return( MBEDTLS_ERR_SSL_WANT_READ );
+                return MBEDTLS_ERR_SSL_WANT_READ;
             }
 #if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION)
-            else if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
-                     ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING )
-            {
-                if( ( ret = mbedtls_ssl_resend_hello_request( ssl ) ) != 0 )
-                {
-                    MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend_hello_request",
-                                           ret );
-                    return( ret );
+            else if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
+                     ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING) {
+                if ((ret = mbedtls_ssl_resend_hello_request(ssl)) != 0) {
+                    MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_resend_hello_request",
+                                          ret);
+                    return ret;
                 }
 
-                return( MBEDTLS_ERR_SSL_WANT_READ );
+                return MBEDTLS_ERR_SSL_WANT_READ;
             }
 #endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */
         }
 
-        if( ret < 0 )
-            return( ret );
+        if (ret < 0) {
+            return ret;
+        }
 
         ssl->in_left = ret;
-    }
-    else
+    } else
 #endif
     {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %" MBEDTLS_PRINTF_SIZET
-                                    ", nb_want: %" MBEDTLS_PRINTF_SIZET,
-                       ssl->in_left, nb_want ) );
+        MBEDTLS_SSL_DEBUG_MSG(2, ("in_left: %" MBEDTLS_PRINTF_SIZET
+                                  ", nb_want: %" MBEDTLS_PRINTF_SIZET,
+                                  ssl->in_left, nb_want));
 
-        while( ssl->in_left < nb_want )
-        {
+        while (ssl->in_left < nb_want) {
             len = nb_want - ssl->in_left;
 
-            if( mbedtls_ssl_check_timer( ssl ) != 0 )
+            if (mbedtls_ssl_check_timer(ssl) != 0) {
                 ret = MBEDTLS_ERR_SSL_TIMEOUT;
-            else
-            {
-                if( ssl->f_recv_timeout != NULL )
-                {
-                    ret = ssl->f_recv_timeout( ssl->p_bio,
-                                               ssl->in_hdr + ssl->in_left, len,
-                                               ssl->conf->read_timeout );
-                }
-                else
-                {
-                    ret = ssl->f_recv( ssl->p_bio,
-                                       ssl->in_hdr + ssl->in_left, len );
+            } else {
+                if (ssl->f_recv_timeout != NULL) {
+                    ret = ssl->f_recv_timeout(ssl->p_bio,
+                                              ssl->in_hdr + ssl->in_left, len,
+                                              ssl->conf->read_timeout);
+                } else {
+                    ret = ssl->f_recv(ssl->p_bio,
+                                      ssl->in_hdr + ssl->in_left, len);
                 }
             }
 
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %" MBEDTLS_PRINTF_SIZET
-                                        ", nb_want: %" MBEDTLS_PRINTF_SIZET,
-                                        ssl->in_left, nb_want ) );
-            MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_recv(_timeout)", ret );
+            MBEDTLS_SSL_DEBUG_MSG(2, ("in_left: %" MBEDTLS_PRINTF_SIZET
+                                      ", nb_want: %" MBEDTLS_PRINTF_SIZET,
+                                      ssl->in_left, nb_want));
+            MBEDTLS_SSL_DEBUG_RET(2, "ssl->f_recv(_timeout)", ret);
 
-            if( ret == 0 )
-                return( MBEDTLS_ERR_SSL_CONN_EOF );
+            if (ret == 0) {
+                return MBEDTLS_ERR_SSL_CONN_EOF;
+            }
 
-            if( ret < 0 )
-                return( ret );
+            if (ret < 0) {
+                return ret;
+            }
 
-            if ( (size_t)ret > len || ( INT_MAX > SIZE_MAX && ret > (int)SIZE_MAX ) )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1,
-                    ( "f_recv returned %d bytes but only %" MBEDTLS_PRINTF_SIZET " were requested",
-                    ret, len ) );
-                return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+            if ((size_t) ret > len || (INT_MAX > SIZE_MAX && ret > (int) SIZE_MAX)) {
+                MBEDTLS_SSL_DEBUG_MSG(1,
+                                      ("f_recv returned %d bytes but only %" MBEDTLS_PRINTF_SIZET
+                                       " were requested",
+                                       ret, len));
+                return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
             }
 
             ssl->in_left += ret;
         }
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= fetch input" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= fetch input"));
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Flush any data not yet written
  */
-int mbedtls_ssl_flush_output( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_flush_output(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char *buf;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> flush output" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> flush output"));
 
-    if( ssl->f_send == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() " ) );
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->f_send == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Bad usage of mbedtls_ssl_set_bio() "));
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
     /* Avoid incrementing counter if data is flushed */
-    if( ssl->out_left == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= flush output" ) );
-        return( 0 );
+    if (ssl->out_left == 0) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= flush output"));
+        return 0;
     }
 
-    while( ssl->out_left > 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "message length: %" MBEDTLS_PRINTF_SIZET
-                                    ", out_left: %" MBEDTLS_PRINTF_SIZET,
-                       mbedtls_ssl_out_hdr_len( ssl ) + ssl->out_msglen, ssl->out_left ) );
+    while (ssl->out_left > 0) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("message length: %" MBEDTLS_PRINTF_SIZET
+                                  ", out_left: %" MBEDTLS_PRINTF_SIZET,
+                                  mbedtls_ssl_out_hdr_len(ssl) + ssl->out_msglen, ssl->out_left));
 
         buf = ssl->out_hdr - ssl->out_left;
-        ret = ssl->f_send( ssl->p_bio, buf, ssl->out_left );
+        ret = ssl->f_send(ssl->p_bio, buf, ssl->out_left);
 
-        MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_send", ret );
+        MBEDTLS_SSL_DEBUG_RET(2, "ssl->f_send", ret);
 
-        if( ret <= 0 )
-            return( ret );
+        if (ret <= 0) {
+            return ret;
+        }
 
-        if( (size_t)ret > ssl->out_left || ( INT_MAX > SIZE_MAX && ret > (int)SIZE_MAX ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1,
-                ( "f_send returned %d bytes but only %" MBEDTLS_PRINTF_SIZET " bytes were sent",
-                ret, ssl->out_left ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        if ((size_t) ret > ssl->out_left || (INT_MAX > SIZE_MAX && ret > (int) SIZE_MAX)) {
+            MBEDTLS_SSL_DEBUG_MSG(1,
+                                  ("f_send returned %d bytes but only %" MBEDTLS_PRINTF_SIZET
+                                   " bytes were sent",
+                                   ret, ssl->out_left));
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
 
         ssl->out_left -= ret;
     }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         ssl->out_hdr = ssl->out_buf;
-    }
-    else
+    } else
 #endif
     {
         ssl->out_hdr = ssl->out_buf + 8;
     }
-    mbedtls_ssl_update_out_pointers( ssl, ssl->transform_out );
+    mbedtls_ssl_update_out_pointers(ssl, ssl->transform_out);
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= flush output" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= flush output"));
 
-    return( 0 );
+    return 0;
 }
 
 /*
@@ -2236,64 +2176,61 @@
  * Append current handshake message to current outgoing flight
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_flight_append( mbedtls_ssl_context *ssl )
+static int ssl_flight_append(mbedtls_ssl_context *ssl)
 {
     mbedtls_ssl_flight_item *msg;
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_flight_append" ) );
-    MBEDTLS_SSL_DEBUG_BUF( 4, "message appended to flight",
-                           ssl->out_msg, ssl->out_msglen );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> ssl_flight_append"));
+    MBEDTLS_SSL_DEBUG_BUF(4, "message appended to flight",
+                          ssl->out_msg, ssl->out_msglen);
 
     /* Allocate space for current message */
-    if( ( msg = mbedtls_calloc( 1, sizeof(  mbedtls_ssl_flight_item ) ) ) == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc %" MBEDTLS_PRINTF_SIZET " bytes failed",
-                            sizeof( mbedtls_ssl_flight_item ) ) );
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+    if ((msg = mbedtls_calloc(1, sizeof(mbedtls_ssl_flight_item))) == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("alloc %" MBEDTLS_PRINTF_SIZET " bytes failed",
+                                  sizeof(mbedtls_ssl_flight_item)));
+        return MBEDTLS_ERR_SSL_ALLOC_FAILED;
     }
 
-    if( ( msg->p = mbedtls_calloc( 1, ssl->out_msglen ) ) == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc %" MBEDTLS_PRINTF_SIZET " bytes failed",
-                                    ssl->out_msglen ) );
-        mbedtls_free( msg );
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+    if ((msg->p = mbedtls_calloc(1, ssl->out_msglen)) == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("alloc %" MBEDTLS_PRINTF_SIZET " bytes failed",
+                                  ssl->out_msglen));
+        mbedtls_free(msg);
+        return MBEDTLS_ERR_SSL_ALLOC_FAILED;
     }
 
     /* Copy current handshake message with headers */
-    memcpy( msg->p, ssl->out_msg, ssl->out_msglen );
+    memcpy(msg->p, ssl->out_msg, ssl->out_msglen);
     msg->len = ssl->out_msglen;
     msg->type = ssl->out_msgtype;
     msg->next = NULL;
 
     /* Append to the current flight */
-    if( ssl->handshake->flight == NULL )
+    if (ssl->handshake->flight == NULL) {
         ssl->handshake->flight = msg;
-    else
-    {
+    } else {
         mbedtls_ssl_flight_item *cur = ssl->handshake->flight;
-        while( cur->next != NULL )
+        while (cur->next != NULL) {
             cur = cur->next;
+        }
         cur->next = msg;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_flight_append" ) );
-    return( 0 );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= ssl_flight_append"));
+    return 0;
 }
 
 /*
  * Free the current flight of handshake messages
  */
-void mbedtls_ssl_flight_free( mbedtls_ssl_flight_item *flight )
+void mbedtls_ssl_flight_free(mbedtls_ssl_flight_item *flight)
 {
     mbedtls_ssl_flight_item *cur = flight;
     mbedtls_ssl_flight_item *next;
 
-    while( cur != NULL )
-    {
+    while (cur != NULL) {
         next = cur->next;
 
-        mbedtls_free( cur->p );
-        mbedtls_free( cur );
+        mbedtls_free(cur->p);
+        mbedtls_free(cur);
 
         cur = next;
     }
@@ -2303,18 +2240,17 @@
  * Swap transform_out and out_ctr with the alternative ones
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_swap_epochs( mbedtls_ssl_context *ssl )
+static int ssl_swap_epochs(mbedtls_ssl_context *ssl)
 {
     mbedtls_ssl_transform *tmp_transform;
     unsigned char tmp_out_ctr[MBEDTLS_SSL_SEQUENCE_NUMBER_LEN];
 
-    if( ssl->transform_out == ssl->handshake->alt_transform_out )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip swap epochs" ) );
-        return( 0 );
+    if (ssl->transform_out == ssl->handshake->alt_transform_out) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("skip swap epochs"));
+        return 0;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "swap epochs" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("swap epochs"));
 
     /* Swap transforms */
     tmp_transform                     = ssl->transform_out;
@@ -2322,32 +2258,32 @@
     ssl->handshake->alt_transform_out = tmp_transform;
 
     /* Swap epoch + sequence_number */
-    memcpy( tmp_out_ctr, ssl->cur_out_ctr, sizeof( tmp_out_ctr ) );
-    memcpy( ssl->cur_out_ctr, ssl->handshake->alt_out_ctr,
-            sizeof( ssl->cur_out_ctr ) );
-    memcpy( ssl->handshake->alt_out_ctr, tmp_out_ctr,
-            sizeof( ssl->handshake->alt_out_ctr ) );
+    memcpy(tmp_out_ctr, ssl->cur_out_ctr, sizeof(tmp_out_ctr));
+    memcpy(ssl->cur_out_ctr, ssl->handshake->alt_out_ctr,
+           sizeof(ssl->cur_out_ctr));
+    memcpy(ssl->handshake->alt_out_ctr, tmp_out_ctr,
+           sizeof(ssl->handshake->alt_out_ctr));
 
     /* Adjust to the newly activated transform */
-    mbedtls_ssl_update_out_pointers( ssl, ssl->transform_out );
+    mbedtls_ssl_update_out_pointers(ssl, ssl->transform_out);
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Retransmit the current flight of messages.
  */
-int mbedtls_ssl_resend( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_resend(mbedtls_ssl_context *ssl)
 {
     int ret = 0;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> mbedtls_ssl_resend" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> mbedtls_ssl_resend"));
 
-    ret = mbedtls_ssl_flight_transmit( ssl );
+    ret = mbedtls_ssl_flight_transmit(ssl);
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= mbedtls_ssl_resend" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= mbedtls_ssl_resend"));
 
-    return( ret );
+    return ret;
 }
 
 /*
@@ -2357,121 +2293,117 @@
  * WANT_WRITE, causing us to exit this function and come back later.
  * This function must be called until state is no longer SENDING.
  */
-int mbedtls_ssl_flight_transmit( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_flight_transmit(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> mbedtls_ssl_flight_transmit" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> mbedtls_ssl_flight_transmit"));
 
-    if( ssl->handshake->retransmit_state != MBEDTLS_SSL_RETRANS_SENDING )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "initialise flight transmission" ) );
+    if (ssl->handshake->retransmit_state != MBEDTLS_SSL_RETRANS_SENDING) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("initialise flight transmission"));
 
         ssl->handshake->cur_msg = ssl->handshake->flight;
         ssl->handshake->cur_msg_p = ssl->handshake->flight->p + 12;
-        ret = ssl_swap_epochs( ssl );
-        if( ret != 0 )
-            return( ret );
+        ret = ssl_swap_epochs(ssl);
+        if (ret != 0) {
+            return ret;
+        }
 
         ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_SENDING;
     }
 
-    while( ssl->handshake->cur_msg != NULL )
-    {
+    while (ssl->handshake->cur_msg != NULL) {
         size_t max_frag_len;
         const mbedtls_ssl_flight_item * const cur = ssl->handshake->cur_msg;
 
         int const is_finished =
-            ( cur->type == MBEDTLS_SSL_MSG_HANDSHAKE &&
-              cur->p[0] == MBEDTLS_SSL_HS_FINISHED );
+            (cur->type == MBEDTLS_SSL_MSG_HANDSHAKE &&
+             cur->p[0] == MBEDTLS_SSL_HS_FINISHED);
 
         int const force_flush = ssl->disable_datagram_packing == 1 ?
-            SSL_FORCE_FLUSH : SSL_DONT_FORCE_FLUSH;
+                                SSL_FORCE_FLUSH : SSL_DONT_FORCE_FLUSH;
 
         /* Swap epochs before sending Finished: we can't do it after
          * sending ChangeCipherSpec, in case write returns WANT_READ.
          * Must be done before copying, may change out_msg pointer */
-        if( is_finished && ssl->handshake->cur_msg_p == ( cur->p + 12 ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "swap epochs to send finished message" ) );
-            ret = ssl_swap_epochs( ssl );
-            if( ret != 0 )
-                return( ret );
+        if (is_finished && ssl->handshake->cur_msg_p == (cur->p + 12)) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("swap epochs to send finished message"));
+            ret = ssl_swap_epochs(ssl);
+            if (ret != 0) {
+                return ret;
+            }
         }
 
-        ret = ssl_get_remaining_payload_in_datagram( ssl );
-        if( ret < 0 )
-            return( ret );
+        ret = ssl_get_remaining_payload_in_datagram(ssl);
+        if (ret < 0) {
+            return ret;
+        }
         max_frag_len = (size_t) ret;
 
         /* CCS is copied as is, while HS messages may need fragmentation */
-        if( cur->type == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
-        {
-            if( max_frag_len == 0 )
-            {
-                if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-                    return( ret );
+        if (cur->type == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC) {
+            if (max_frag_len == 0) {
+                if ((ret = mbedtls_ssl_flush_output(ssl)) != 0) {
+                    return ret;
+                }
 
                 continue;
             }
 
-            memcpy( ssl->out_msg, cur->p, cur->len );
+            memcpy(ssl->out_msg, cur->p, cur->len);
             ssl->out_msglen  = cur->len;
             ssl->out_msgtype = cur->type;
 
             /* Update position inside current message */
             ssl->handshake->cur_msg_p += cur->len;
-        }
-        else
-        {
+        } else {
             const unsigned char * const p = ssl->handshake->cur_msg_p;
             const size_t hs_len = cur->len - 12;
-            const size_t frag_off = p - ( cur->p + 12 );
+            const size_t frag_off = p - (cur->p + 12);
             const size_t rem_len = hs_len - frag_off;
             size_t cur_hs_frag_len, max_hs_frag_len;
 
-            if( ( max_frag_len < 12 ) || ( max_frag_len == 12 && hs_len != 0 ) )
-            {
-                if( is_finished )
-                {
-                    ret = ssl_swap_epochs( ssl );
-                    if( ret != 0 )
-                        return( ret );
+            if ((max_frag_len < 12) || (max_frag_len == 12 && hs_len != 0)) {
+                if (is_finished) {
+                    ret = ssl_swap_epochs(ssl);
+                    if (ret != 0) {
+                        return ret;
+                    }
                 }
 
-                if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-                    return( ret );
+                if ((ret = mbedtls_ssl_flush_output(ssl)) != 0) {
+                    return ret;
+                }
 
                 continue;
             }
             max_hs_frag_len = max_frag_len - 12;
 
             cur_hs_frag_len = rem_len > max_hs_frag_len ?
-                max_hs_frag_len : rem_len;
+                              max_hs_frag_len : rem_len;
 
-            if( frag_off == 0 && cur_hs_frag_len != hs_len )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "fragmenting handshake message (%u > %u)",
-                                            (unsigned) cur_hs_frag_len,
-                                            (unsigned) max_hs_frag_len ) );
+            if (frag_off == 0 && cur_hs_frag_len != hs_len) {
+                MBEDTLS_SSL_DEBUG_MSG(2, ("fragmenting handshake message (%u > %u)",
+                                          (unsigned) cur_hs_frag_len,
+                                          (unsigned) max_hs_frag_len));
             }
 
             /* Messages are stored with handshake headers as if not fragmented,
              * copy beginning of headers then fill fragmentation fields.
              * Handshake headers: type(1) len(3) seq(2) f_off(3) f_len(3) */
-            memcpy( ssl->out_msg, cur->p, 6 );
+            memcpy(ssl->out_msg, cur->p, 6);
 
-            ssl->out_msg[6] = MBEDTLS_BYTE_2( frag_off );
-            ssl->out_msg[7] = MBEDTLS_BYTE_1( frag_off );
-            ssl->out_msg[8] = MBEDTLS_BYTE_0( frag_off );
+            ssl->out_msg[6] = MBEDTLS_BYTE_2(frag_off);
+            ssl->out_msg[7] = MBEDTLS_BYTE_1(frag_off);
+            ssl->out_msg[8] = MBEDTLS_BYTE_0(frag_off);
 
-            ssl->out_msg[ 9] = MBEDTLS_BYTE_2( cur_hs_frag_len );
-            ssl->out_msg[10] = MBEDTLS_BYTE_1( cur_hs_frag_len );
-            ssl->out_msg[11] = MBEDTLS_BYTE_0( cur_hs_frag_len );
+            ssl->out_msg[9] = MBEDTLS_BYTE_2(cur_hs_frag_len);
+            ssl->out_msg[10] = MBEDTLS_BYTE_1(cur_hs_frag_len);
+            ssl->out_msg[11] = MBEDTLS_BYTE_0(cur_hs_frag_len);
 
-            MBEDTLS_SSL_DEBUG_BUF( 3, "handshake header", ssl->out_msg, 12 );
+            MBEDTLS_SSL_DEBUG_BUF(3, "handshake header", ssl->out_msg, 12);
 
             /* Copy the handshake message content and set records fields */
-            memcpy( ssl->out_msg + 12, p, cur_hs_frag_len );
+            memcpy(ssl->out_msg + 12, p, cur_hs_frag_len);
             ssl->out_msglen = cur_hs_frag_len + 12;
             ssl->out_msgtype = cur->type;
 
@@ -2480,52 +2412,47 @@
         }
 
         /* If done with the current message move to the next one if any */
-        if( ssl->handshake->cur_msg_p >= cur->p + cur->len )
-        {
-            if( cur->next != NULL )
-            {
+        if (ssl->handshake->cur_msg_p >= cur->p + cur->len) {
+            if (cur->next != NULL) {
                 ssl->handshake->cur_msg = cur->next;
                 ssl->handshake->cur_msg_p = cur->next->p + 12;
-            }
-            else
-            {
+            } else {
                 ssl->handshake->cur_msg = NULL;
                 ssl->handshake->cur_msg_p = NULL;
             }
         }
 
         /* Actually send the message out */
-        if( ( ret = mbedtls_ssl_write_record( ssl, force_flush ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret );
-            return( ret );
+        if ((ret = mbedtls_ssl_write_record(ssl, force_flush)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_write_record", ret);
+            return ret;
         }
     }
 
-    if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-        return( ret );
-
-    /* Update state and set timer */
-    if( mbedtls_ssl_is_handshake_over( ssl ) == 1 )
-        ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED;
-    else
-    {
-        ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING;
-        mbedtls_ssl_set_timer( ssl, ssl->handshake->retransmit_timeout );
+    if ((ret = mbedtls_ssl_flush_output(ssl)) != 0) {
+        return ret;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= mbedtls_ssl_flight_transmit" ) );
+    /* Update state and set timer */
+    if (mbedtls_ssl_is_handshake_over(ssl) == 1) {
+        ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED;
+    } else {
+        ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING;
+        mbedtls_ssl_set_timer(ssl, ssl->handshake->retransmit_timeout);
+    }
 
-    return( 0 );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= mbedtls_ssl_flight_transmit"));
+
+    return 0;
 }
 
 /*
  * To be called when the last message of an incoming flight is received.
  */
-void mbedtls_ssl_recv_flight_completed( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_recv_flight_completed(mbedtls_ssl_context *ssl)
 {
     /* We won't need to resend that one any more */
-    mbedtls_ssl_flight_free( ssl->handshake->flight );
+    mbedtls_ssl_flight_free(ssl->handshake->flight);
     ssl->handshake->flight = NULL;
     ssl->handshake->cur_msg = NULL;
 
@@ -2536,43 +2463,41 @@
     ssl->handshake->buffering.seen_ccs = 0;
 
     /* Clear future message buffering structure. */
-    mbedtls_ssl_buffering_free( ssl );
+    mbedtls_ssl_buffering_free(ssl);
 
     /* Cancel timer */
-    mbedtls_ssl_set_timer( ssl, 0 );
+    mbedtls_ssl_set_timer(ssl, 0);
 
-    if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
-        ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED )
-    {
+    if (ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
+        ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED) {
         ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED;
-    }
-    else
+    } else {
         ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_PREPARING;
+    }
 }
 
 /*
  * To be called when the last message of an outgoing flight is send.
  */
-void mbedtls_ssl_send_flight_completed( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_send_flight_completed(mbedtls_ssl_context *ssl)
 {
-    ssl_reset_retransmit_timeout( ssl );
-    mbedtls_ssl_set_timer( ssl, ssl->handshake->retransmit_timeout );
+    ssl_reset_retransmit_timeout(ssl);
+    mbedtls_ssl_set_timer(ssl, ssl->handshake->retransmit_timeout);
 
-    if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
-        ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED )
-    {
+    if (ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
+        ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED) {
         ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED;
-    }
-    else
+    } else {
         ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING;
+    }
 }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
 /*
  * Handshake layer functions
  */
-int mbedtls_ssl_start_handshake_msg( mbedtls_ssl_context *ssl, unsigned hs_type,
-                                     unsigned char **buf, size_t *buf_len )
+int mbedtls_ssl_start_handshake_msg(mbedtls_ssl_context *ssl, unsigned hs_type,
+                                    unsigned char **buf, size_t *buf_len)
 {
     /*
      * Reserve 4 bytes for handshake header. ( Section 4,RFC 8446 )
@@ -2587,7 +2512,7 @@
     ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
     ssl->out_msg[0]  = hs_type;
 
-    return( 0 );
+    return 0;
 }
 
 /*
@@ -2612,43 +2537,40 @@
  *      (including handshake headers but excluding record headers)
  *   - ssl->out_msg: the record contents (handshake headers + content)
  */
-int mbedtls_ssl_write_handshake_msg_ext( mbedtls_ssl_context *ssl,
-                                         int update_checksum,
-                                         int force_flush )
+int mbedtls_ssl_write_handshake_msg_ext(mbedtls_ssl_context *ssl,
+                                        int update_checksum,
+                                        int force_flush)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     const size_t hs_len = ssl->out_msglen - 4;
     const unsigned char hs_type = ssl->out_msg[0];
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write handshake message" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write handshake message"));
 
     /*
      * Sanity checks
      */
-    if( ssl->out_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE          &&
-        ssl->out_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    if (ssl->out_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE          &&
+        ssl->out_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
     /* Whenever we send anything different from a
      * HelloRequest we should be in a handshake - double check. */
-    if( ! ( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
-            hs_type          == MBEDTLS_SSL_HS_HELLO_REQUEST ) &&
-        ssl->handshake == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    if (!(ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
+          hs_type          == MBEDTLS_SSL_HS_HELLO_REQUEST) &&
+        ssl->handshake == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
         ssl->handshake != NULL &&
-        ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 #endif
 
@@ -2660,24 +2582,22 @@
      *
      * Note: We deliberately do not check for the MTU or MFL here.
      */
-    if( ssl->out_msglen > MBEDTLS_SSL_OUT_CONTENT_LEN )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Record too large: "
-                                    "size %" MBEDTLS_PRINTF_SIZET
-                                    ", maximum %" MBEDTLS_PRINTF_SIZET,
-                                    ssl->out_msglen,
-                                    (size_t) MBEDTLS_SSL_OUT_CONTENT_LEN ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    if (ssl->out_msglen > MBEDTLS_SSL_OUT_CONTENT_LEN) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Record too large: "
+                                  "size %" MBEDTLS_PRINTF_SIZET
+                                  ", maximum %" MBEDTLS_PRINTF_SIZET,
+                                  ssl->out_msglen,
+                                  (size_t) MBEDTLS_SSL_OUT_CONTENT_LEN));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
     /*
      * Fill handshake headers
      */
-    if( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        ssl->out_msg[1] = MBEDTLS_BYTE_2( hs_len );
-        ssl->out_msg[2] = MBEDTLS_BYTE_1( hs_len );
-        ssl->out_msg[3] = MBEDTLS_BYTE_0( hs_len );
+    if (ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE) {
+        ssl->out_msg[1] = MBEDTLS_BYTE_2(hs_len);
+        ssl->out_msg[2] = MBEDTLS_BYTE_1(hs_len);
+        ssl->out_msg[3] = MBEDTLS_BYTE_0(hs_len);
 
         /*
          * DTLS has additional fields in the Handshake layer,
@@ -2687,74 +2607,67 @@
          *      uint24 fragment_length;
          */
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        {
+        if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
             /* Make room for the additional DTLS fields */
-            if( MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen < 8 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS handshake message too large: "
-                              "size %" MBEDTLS_PRINTF_SIZET ", maximum %" MBEDTLS_PRINTF_SIZET,
-                               hs_len,
-                               (size_t) ( MBEDTLS_SSL_OUT_CONTENT_LEN - 12 ) ) );
-                return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+            if (MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen < 8) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("DTLS handshake message too large: "
+                                          "size %" MBEDTLS_PRINTF_SIZET ", maximum %"
+                                          MBEDTLS_PRINTF_SIZET,
+                                          hs_len,
+                                          (size_t) (MBEDTLS_SSL_OUT_CONTENT_LEN - 12)));
+                return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
             }
 
-            memmove( ssl->out_msg + 12, ssl->out_msg + 4, hs_len );
+            memmove(ssl->out_msg + 12, ssl->out_msg + 4, hs_len);
             ssl->out_msglen += 8;
 
             /* Write message_seq and update it, except for HelloRequest */
-            if( hs_type != MBEDTLS_SSL_HS_HELLO_REQUEST )
-            {
-                MBEDTLS_PUT_UINT16_BE( ssl->handshake->out_msg_seq, ssl->out_msg, 4 );
-                ++( ssl->handshake->out_msg_seq );
-            }
-            else
-            {
+            if (hs_type != MBEDTLS_SSL_HS_HELLO_REQUEST) {
+                MBEDTLS_PUT_UINT16_BE(ssl->handshake->out_msg_seq, ssl->out_msg, 4);
+                ++(ssl->handshake->out_msg_seq);
+            } else {
                 ssl->out_msg[4] = 0;
                 ssl->out_msg[5] = 0;
             }
 
             /* Handshake hashes are computed without fragmentation,
              * so set frag_offset = 0 and frag_len = hs_len for now */
-            memset( ssl->out_msg + 6, 0x00, 3 );
-            memcpy( ssl->out_msg + 9, ssl->out_msg + 1, 3 );
+            memset(ssl->out_msg + 6, 0x00, 3);
+            memcpy(ssl->out_msg + 9, ssl->out_msg + 1, 3);
         }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
         /* Update running hashes of handshake messages seen */
-        if( hs_type != MBEDTLS_SSL_HS_HELLO_REQUEST && update_checksum != 0 )
-            ssl->handshake->update_checksum( ssl, ssl->out_msg, ssl->out_msglen );
+        if (hs_type != MBEDTLS_SSL_HS_HELLO_REQUEST && update_checksum != 0) {
+            ssl->handshake->update_checksum(ssl, ssl->out_msg, ssl->out_msglen);
+        }
     }
 
     /* Either send now, or just save to be sent (and resent) later */
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ! ( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
-            hs_type          == MBEDTLS_SSL_HS_HELLO_REQUEST ) )
-    {
-        if( ( ret = ssl_flight_append( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "ssl_flight_append", ret );
-            return( ret );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        !(ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
+          hs_type          == MBEDTLS_SSL_HS_HELLO_REQUEST)) {
+        if ((ret = ssl_flight_append(ssl)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "ssl_flight_append", ret);
+            return ret;
         }
-    }
-    else
+    } else
 #endif
     {
-        if( ( ret = mbedtls_ssl_write_record( ssl, force_flush ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "ssl_write_record", ret );
-            return( ret );
+        if ((ret = mbedtls_ssl_write_record(ssl, force_flush)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "ssl_write_record", ret);
+            return ret;
         }
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write handshake message" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write handshake message"));
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_finish_handshake_msg( mbedtls_ssl_context *ssl,
-                                      size_t buf_len, size_t msg_len )
+int mbedtls_ssl_finish_handshake_msg(mbedtls_ssl_context *ssl,
+                                     size_t buf_len, size_t msg_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t msg_with_header_len;
@@ -2763,10 +2676,10 @@
     /* Add reserved 4 bytes for handshake header */
     msg_with_header_len = msg_len + 4;
     ssl->out_msglen = msg_with_header_len;
-    MBEDTLS_SSL_PROC_CHK( mbedtls_ssl_write_handshake_msg_ext( ssl, 0, 0 ) );
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_write_handshake_msg_ext(ssl, 0, 0));
 
 cleanup:
-    return( ret );
+    return ret;
 }
 
 /*
@@ -2781,16 +2694,15 @@
  *  - ssl->out_msglen: length of the record content (excl headers)
  *  - ssl->out_msg: record content
  */
-int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, int force_flush )
+int mbedtls_ssl_write_record(mbedtls_ssl_context *ssl, int force_flush)
 {
     int ret, done = 0;
     size_t len = ssl->out_msglen;
     int flush = force_flush;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write record" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write record"));
 
-    if( !done )
-    {
+    if (!done) {
         unsigned i;
         size_t protected_record_size;
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
@@ -2804,26 +2716,26 @@
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
         /* TLS 1.3 still uses the TLS 1.2 version identifier
          * for backwards compatibility. */
-        if( tls_ver == MBEDTLS_SSL_VERSION_TLS1_3 )
+        if (tls_ver == MBEDTLS_SSL_VERSION_TLS1_3) {
             tls_ver = MBEDTLS_SSL_VERSION_TLS1_2;
+        }
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
-        mbedtls_ssl_write_version( ssl->out_hdr + 1, ssl->conf->transport,
-                                   tls_ver );
+        mbedtls_ssl_write_version(ssl->out_hdr + 1, ssl->conf->transport,
+                                  tls_ver);
 
-        memcpy( ssl->out_ctr, ssl->cur_out_ctr, MBEDTLS_SSL_SEQUENCE_NUMBER_LEN );
-        MBEDTLS_PUT_UINT16_BE( len, ssl->out_len, 0);
+        memcpy(ssl->out_ctr, ssl->cur_out_ctr, MBEDTLS_SSL_SEQUENCE_NUMBER_LEN);
+        MBEDTLS_PUT_UINT16_BE(len, ssl->out_len, 0);
 
-        if( ssl->transform_out != NULL )
-        {
+        if (ssl->transform_out != NULL) {
             mbedtls_record rec;
 
             rec.buf         = ssl->out_iv;
-            rec.buf_len     = out_buf_len - ( ssl->out_iv - ssl->out_buf );
+            rec.buf_len     = out_buf_len - (ssl->out_iv - ssl->out_buf);
             rec.data_len    = ssl->out_msglen;
             rec.data_offset = ssl->out_msg - rec.buf;
 
-            memcpy( &rec.ctr[0], ssl->out_ctr, sizeof( rec.ctr ) );
-            mbedtls_ssl_write_version( rec.ver, ssl->conf->transport, tls_ver );
+            memcpy(&rec.ctr[0], ssl->out_ctr, sizeof(rec.ctr));
+            mbedtls_ssl_write_version(rec.ver, ssl->conf->transport, tls_ver);
             rec.type = ssl->out_msgtype;
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
@@ -2831,43 +2743,40 @@
             rec.cid_len = 0;
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
-            if( ( ret = mbedtls_ssl_encrypt_buf( ssl, ssl->transform_out, &rec,
-                                         ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_RET( 1, "ssl_encrypt_buf", ret );
-                return( ret );
+            if ((ret = mbedtls_ssl_encrypt_buf(ssl, ssl->transform_out, &rec,
+                                               ssl->conf->f_rng, ssl->conf->p_rng)) != 0) {
+                MBEDTLS_SSL_DEBUG_RET(1, "ssl_encrypt_buf", ret);
+                return ret;
             }
 
-            if( rec.data_offset != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-                return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+            if (rec.data_offset != 0) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+                return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
             }
 
             /* Update the record content type and CID. */
             ssl->out_msgtype = rec.type;
-#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID )
-            memcpy( ssl->out_cid, rec.cid, rec.cid_len );
+#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
+            memcpy(ssl->out_cid, rec.cid, rec.cid_len);
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
             ssl->out_msglen = len = rec.data_len;
-            MBEDTLS_PUT_UINT16_BE( rec.data_len, ssl->out_len, 0 );
+            MBEDTLS_PUT_UINT16_BE(rec.data_len, ssl->out_len, 0);
         }
 
-        protected_record_size = len + mbedtls_ssl_out_hdr_len( ssl );
+        protected_record_size = len + mbedtls_ssl_out_hdr_len(ssl);
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
         /* In case of DTLS, double-check that we don't exceed
          * the remaining space in the datagram. */
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        {
-            ret = ssl_get_remaining_space_in_datagram( ssl );
-            if( ret < 0 )
-                return( ret );
+        if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+            ret = ssl_get_remaining_space_in_datagram(ssl);
+            if (ret < 0) {
+                return ret;
+            }
 
-            if( protected_record_size > (size_t) ret )
-            {
+            if (protected_record_size > (size_t) ret) {
                 /* Should never happen */
-                return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+                return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
             }
         }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
@@ -2875,133 +2784,131 @@
         /* Now write the potentially updated record content type. */
         ssl->out_hdr[0] = (unsigned char) ssl->out_msgtype;
 
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "output record: msgtype = %u, "
-                                    "version = [%u:%u], msglen = %" MBEDTLS_PRINTF_SIZET,
-                                    ssl->out_hdr[0], ssl->out_hdr[1],
-                                    ssl->out_hdr[2], len ) );
+        MBEDTLS_SSL_DEBUG_MSG(3, ("output record: msgtype = %u, "
+                                  "version = [%u:%u], msglen = %" MBEDTLS_PRINTF_SIZET,
+                                  ssl->out_hdr[0], ssl->out_hdr[1],
+                                  ssl->out_hdr[2], len));
 
-        MBEDTLS_SSL_DEBUG_BUF( 4, "output record sent to network",
-                               ssl->out_hdr, protected_record_size );
+        MBEDTLS_SSL_DEBUG_BUF(4, "output record sent to network",
+                              ssl->out_hdr, protected_record_size);
 
         ssl->out_left += protected_record_size;
         ssl->out_hdr  += protected_record_size;
-        mbedtls_ssl_update_out_pointers( ssl, ssl->transform_out );
+        mbedtls_ssl_update_out_pointers(ssl, ssl->transform_out);
 
-        for( i = 8; i > mbedtls_ssl_ep_len( ssl ); i-- )
-            if( ++ssl->cur_out_ctr[i - 1] != 0 )
+        for (i = 8; i > mbedtls_ssl_ep_len(ssl); i--) {
+            if (++ssl->cur_out_ctr[i - 1] != 0) {
                 break;
+            }
+        }
 
         /* The loop goes to its end if the counter is wrapping */
-        if( i == mbedtls_ssl_ep_len( ssl ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "outgoing message counter would wrap" ) );
-            return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING );
+        if (i == mbedtls_ssl_ep_len(ssl)) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("outgoing message counter would wrap"));
+            return MBEDTLS_ERR_SSL_COUNTER_WRAPPING;
         }
     }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        flush == SSL_DONT_FORCE_FLUSH )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        flush == SSL_DONT_FORCE_FLUSH) {
         size_t remaining;
-        ret = ssl_get_remaining_payload_in_datagram( ssl );
-        if( ret < 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_remaining_payload_in_datagram",
-                                   ret );
-            return( ret );
+        ret = ssl_get_remaining_payload_in_datagram(ssl);
+        if (ret < 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "ssl_get_remaining_payload_in_datagram",
+                                  ret);
+            return ret;
         }
 
         remaining = (size_t) ret;
-        if( remaining == 0 )
-        {
+        if (remaining == 0) {
             flush = SSL_FORCE_FLUSH;
-        }
-        else
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "Still %u bytes available in current datagram", (unsigned) remaining ) );
+        } else {
+            MBEDTLS_SSL_DEBUG_MSG(2,
+                                  ("Still %u bytes available in current datagram",
+                                   (unsigned) remaining));
         }
     }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-    if( ( flush == SSL_FORCE_FLUSH ) &&
-        ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flush_output", ret );
-        return( ret );
+    if ((flush == SSL_FORCE_FLUSH) &&
+        (ret = mbedtls_ssl_flush_output(ssl)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_flush_output", ret);
+        return ret;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write record" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write record"));
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_hs_is_proper_fragment( mbedtls_ssl_context *ssl )
+static int ssl_hs_is_proper_fragment(mbedtls_ssl_context *ssl)
 {
-    if( ssl->in_msglen < ssl->in_hslen ||
-        memcmp( ssl->in_msg + 6, "\0\0\0",        3 ) != 0 ||
-        memcmp( ssl->in_msg + 9, ssl->in_msg + 1, 3 ) != 0 )
-    {
-        return( 1 );
+    if (ssl->in_msglen < ssl->in_hslen ||
+        memcmp(ssl->in_msg + 6, "\0\0\0",        3) != 0 ||
+        memcmp(ssl->in_msg + 9, ssl->in_msg + 1, 3) != 0) {
+        return 1;
     }
-    return( 0 );
+    return 0;
 }
 
-static uint32_t ssl_get_hs_frag_len( mbedtls_ssl_context const *ssl )
+static uint32_t ssl_get_hs_frag_len(mbedtls_ssl_context const *ssl)
 {
-    return( ( ssl->in_msg[9] << 16  ) |
-            ( ssl->in_msg[10] << 8  ) |
-              ssl->in_msg[11] );
+    return (ssl->in_msg[9] << 16) |
+           (ssl->in_msg[10] << 8) |
+           ssl->in_msg[11];
 }
 
-static uint32_t ssl_get_hs_frag_off( mbedtls_ssl_context const *ssl )
+static uint32_t ssl_get_hs_frag_off(mbedtls_ssl_context const *ssl)
 {
-    return( ( ssl->in_msg[6] << 16 ) |
-            ( ssl->in_msg[7] << 8  ) |
-              ssl->in_msg[8] );
+    return (ssl->in_msg[6] << 16) |
+           (ssl->in_msg[7] << 8) |
+           ssl->in_msg[8];
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_check_hs_header( mbedtls_ssl_context const *ssl )
+static int ssl_check_hs_header(mbedtls_ssl_context const *ssl)
 {
     uint32_t msg_len, frag_off, frag_len;
 
-    msg_len  = ssl_get_hs_total_len( ssl );
-    frag_off = ssl_get_hs_frag_off( ssl );
-    frag_len = ssl_get_hs_frag_len( ssl );
+    msg_len  = ssl_get_hs_total_len(ssl);
+    frag_off = ssl_get_hs_frag_off(ssl);
+    frag_len = ssl_get_hs_frag_len(ssl);
 
-    if( frag_off > msg_len )
-        return( -1 );
+    if (frag_off > msg_len) {
+        return -1;
+    }
 
-    if( frag_len > msg_len - frag_off )
-        return( -1 );
+    if (frag_len > msg_len - frag_off) {
+        return -1;
+    }
 
-    if( frag_len + 12 > ssl->in_msglen )
-        return( -1 );
+    if (frag_len + 12 > ssl->in_msglen) {
+        return -1;
+    }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Mark bits in bitmask (used for DTLS HS reassembly)
  */
-static void ssl_bitmask_set( unsigned char *mask, size_t offset, size_t len )
+static void ssl_bitmask_set(unsigned char *mask, size_t offset, size_t len)
 {
     unsigned int start_bits, end_bits;
 
-    start_bits = 8 - ( offset % 8 );
-    if( start_bits != 8 )
-    {
+    start_bits = 8 - (offset % 8);
+    if (start_bits != 8) {
         size_t first_byte_idx = offset / 8;
 
         /* Special case */
-        if( len <= start_bits )
-        {
-            for( ; len != 0; len-- )
-                mask[first_byte_idx] |= 1 << ( start_bits - len );
+        if (len <= start_bits) {
+            for (; len != 0; len--) {
+                mask[first_byte_idx] |= 1 << (start_bits - len);
+            }
 
             /* Avoid potential issues with offset or len becoming invalid */
             return;
@@ -3010,134 +2917,134 @@
         offset += start_bits; /* Now offset % 8 == 0 */
         len -= start_bits;
 
-        for( ; start_bits != 0; start_bits-- )
-            mask[first_byte_idx] |= 1 << ( start_bits - 1 );
+        for (; start_bits != 0; start_bits--) {
+            mask[first_byte_idx] |= 1 << (start_bits - 1);
+        }
     }
 
     end_bits = len % 8;
-    if( end_bits != 0 )
-    {
-        size_t last_byte_idx = ( offset + len ) / 8;
+    if (end_bits != 0) {
+        size_t last_byte_idx = (offset + len) / 8;
 
         len -= end_bits; /* Now len % 8 == 0 */
 
-        for( ; end_bits != 0; end_bits-- )
-            mask[last_byte_idx] |= 1 << ( 8 - end_bits );
+        for (; end_bits != 0; end_bits--) {
+            mask[last_byte_idx] |= 1 << (8 - end_bits);
+        }
     }
 
-    memset( mask + offset / 8, 0xFF, len / 8 );
+    memset(mask + offset / 8, 0xFF, len / 8);
 }
 
 /*
  * Check that bitmask is full
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_bitmask_check( unsigned char *mask, size_t len )
+static int ssl_bitmask_check(unsigned char *mask, size_t len)
 {
     size_t i;
 
-    for( i = 0; i < len / 8; i++ )
-        if( mask[i] != 0xFF )
-            return( -1 );
+    for (i = 0; i < len / 8; i++) {
+        if (mask[i] != 0xFF) {
+            return -1;
+        }
+    }
 
-    for( i = 0; i < len % 8; i++ )
-        if( ( mask[len / 8] & ( 1 << ( 7 - i ) ) ) == 0 )
-            return( -1 );
+    for (i = 0; i < len % 8; i++) {
+        if ((mask[len / 8] & (1 << (7 - i))) == 0) {
+            return -1;
+        }
+    }
 
-    return( 0 );
+    return 0;
 }
 
 /* msg_len does not include the handshake header */
-static size_t ssl_get_reassembly_buffer_size( size_t msg_len,
-                                              unsigned add_bitmap )
+static size_t ssl_get_reassembly_buffer_size(size_t msg_len,
+                                             unsigned add_bitmap)
 {
     size_t alloc_len;
 
     alloc_len  = 12;                                 /* Handshake header */
     alloc_len += msg_len;                            /* Content buffer   */
 
-    if( add_bitmap )
-        alloc_len += msg_len / 8 + ( msg_len % 8 != 0 ); /* Bitmap       */
+    if (add_bitmap) {
+        alloc_len += msg_len / 8 + (msg_len % 8 != 0);   /* Bitmap       */
 
-    return( alloc_len );
+    }
+    return alloc_len;
 }
 
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-static uint32_t ssl_get_hs_total_len( mbedtls_ssl_context const *ssl )
+static uint32_t ssl_get_hs_total_len(mbedtls_ssl_context const *ssl)
 {
-    return( ( ssl->in_msg[1] << 16 ) |
-            ( ssl->in_msg[2] << 8  ) |
-              ssl->in_msg[3] );
+    return (ssl->in_msg[1] << 16) |
+           (ssl->in_msg[2] << 8) |
+           ssl->in_msg[3];
 }
 
-int mbedtls_ssl_prepare_handshake_record( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_prepare_handshake_record(mbedtls_ssl_context *ssl)
 {
-    if( ssl->in_msglen < mbedtls_ssl_hs_hdr_len( ssl ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake message too short: %" MBEDTLS_PRINTF_SIZET,
-                            ssl->in_msglen ) );
-        return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+    if (ssl->in_msglen < mbedtls_ssl_hs_hdr_len(ssl)) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("handshake message too short: %" MBEDTLS_PRINTF_SIZET,
+                                  ssl->in_msglen));
+        return MBEDTLS_ERR_SSL_INVALID_RECORD;
     }
 
-    ssl->in_hslen = mbedtls_ssl_hs_hdr_len( ssl ) + ssl_get_hs_total_len( ssl );
+    ssl->in_hslen = mbedtls_ssl_hs_hdr_len(ssl) + ssl_get_hs_total_len(ssl);
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "handshake message: msglen ="
-                        " %" MBEDTLS_PRINTF_SIZET ", type = %u, hslen = %" MBEDTLS_PRINTF_SIZET,
-                        ssl->in_msglen, ssl->in_msg[0], ssl->in_hslen ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("handshake message: msglen ="
+                              " %" MBEDTLS_PRINTF_SIZET ", type = %u, hslen = %"
+                              MBEDTLS_PRINTF_SIZET,
+                              ssl->in_msglen, ssl->in_msg[0], ssl->in_hslen));
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-        unsigned int recv_msg_seq = ( ssl->in_msg[4] << 8 ) | ssl->in_msg[5];
+        unsigned int recv_msg_seq = (ssl->in_msg[4] << 8) | ssl->in_msg[5];
 
-        if( ssl_check_hs_header( ssl ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid handshake header" ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+        if (ssl_check_hs_header(ssl) != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("invalid handshake header"));
+            return MBEDTLS_ERR_SSL_INVALID_RECORD;
         }
 
-        if( ssl->handshake != NULL &&
-           ( ( mbedtls_ssl_is_handshake_over( ssl ) == 0 &&
-                recv_msg_seq != ssl->handshake->in_msg_seq ) ||
-             ( mbedtls_ssl_is_handshake_over( ssl ) == 1 &&
-                ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_HELLO ) ) )
-        {
-            if( recv_msg_seq > ssl->handshake->in_msg_seq )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "received future handshake message of sequence number %u (next %u)",
-                                            recv_msg_seq,
-                                            ssl->handshake->in_msg_seq ) );
-                return( MBEDTLS_ERR_SSL_EARLY_MESSAGE );
+        if (ssl->handshake != NULL &&
+            ((mbedtls_ssl_is_handshake_over(ssl) == 0 &&
+              recv_msg_seq != ssl->handshake->in_msg_seq) ||
+             (mbedtls_ssl_is_handshake_over(ssl) == 1 &&
+              ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_HELLO))) {
+            if (recv_msg_seq > ssl->handshake->in_msg_seq) {
+                MBEDTLS_SSL_DEBUG_MSG(2,
+                                      (
+                                          "received future handshake message of sequence number %u (next %u)",
+                                          recv_msg_seq,
+                                          ssl->handshake->in_msg_seq));
+                return MBEDTLS_ERR_SSL_EARLY_MESSAGE;
             }
 
             /* Retransmit only on last message from previous flight, to avoid
              * too many retransmissions.
              * Besides, No sane server ever retransmits HelloVerifyRequest */
-            if( recv_msg_seq == ssl->handshake->in_flight_start_seq - 1 &&
-                ssl->in_msg[0] != MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "received message from last flight, "
-                                    "message_seq = %u, start_of_flight = %u",
-                                    recv_msg_seq,
-                                    ssl->handshake->in_flight_start_seq ) );
+            if (recv_msg_seq == ssl->handshake->in_flight_start_seq - 1 &&
+                ssl->in_msg[0] != MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST) {
+                MBEDTLS_SSL_DEBUG_MSG(2, ("received message from last flight, "
+                                          "message_seq = %u, start_of_flight = %u",
+                                          recv_msg_seq,
+                                          ssl->handshake->in_flight_start_seq));
 
-                if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 )
-                {
-                    MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend", ret );
-                    return( ret );
+                if ((ret = mbedtls_ssl_resend(ssl)) != 0) {
+                    MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_resend", ret);
+                    return ret;
                 }
-            }
-            else
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "dropping out-of-sequence message: "
-                                    "message_seq = %u, expected = %u",
-                                    recv_msg_seq,
-                                    ssl->handshake->in_msg_seq ) );
+            } else {
+                MBEDTLS_SSL_DEBUG_MSG(2, ("dropping out-of-sequence message: "
+                                          "message_seq = %u, expected = %u",
+                                          recv_msg_seq,
+                                          ssl->handshake->in_msg_seq));
             }
 
-            return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING );
+            return MBEDTLS_ERR_SSL_CONTINUE_PROCESSING;
         }
         /* Wait until message completion to increment in_msg_seq */
 
@@ -3145,38 +3052,33 @@
          * messages; the commonality is that both handshake fragments and
          * future messages cannot be forwarded immediately to the
          * handshake logic layer. */
-        if( ssl_hs_is_proper_fragment( ssl ) == 1 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "found fragmented DTLS handshake message" ) );
-            return( MBEDTLS_ERR_SSL_EARLY_MESSAGE );
+        if (ssl_hs_is_proper_fragment(ssl) == 1) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("found fragmented DTLS handshake message"));
+            return MBEDTLS_ERR_SSL_EARLY_MESSAGE;
         }
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
     /* With TLS we don't handle fragmentation (for now) */
-    if( ssl->in_msglen < ssl->in_hslen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLS handshake fragmentation not supported" ) );
-        return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+    if (ssl->in_msglen < ssl->in_hslen) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("TLS handshake fragmentation not supported"));
+        return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
     }
 
-    return( 0 );
+    return 0;
 }
 
-void mbedtls_ssl_update_handshake_status( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_update_handshake_status(mbedtls_ssl_context *ssl)
 {
     mbedtls_ssl_handshake_params * const hs = ssl->handshake;
 
-    if( mbedtls_ssl_is_handshake_over( ssl ) == 0 && hs != NULL )
-    {
-        ssl->handshake->update_checksum( ssl, ssl->in_msg, ssl->in_hslen );
+    if (mbedtls_ssl_is_handshake_over(ssl) == 0 && hs != NULL) {
+        ssl->handshake->update_checksum(ssl, ssl->in_msg, ssl->in_hslen);
     }
 
     /* Handshake message is complete, increment counter */
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->handshake != NULL )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        ssl->handshake != NULL) {
         unsigned offset;
         mbedtls_ssl_hs_buffer *hs_buf;
 
@@ -3188,18 +3090,17 @@
          */
 
         /* Free first entry */
-        ssl_buffering_free_slot( ssl, 0 );
+        ssl_buffering_free_slot(ssl, 0);
 
         /* Shift all other entries */
-        for( offset = 0, hs_buf = &hs->buffering.hs[0];
+        for (offset = 0, hs_buf = &hs->buffering.hs[0];
              offset + 1 < MBEDTLS_SSL_MAX_BUFFERED_HS;
-             offset++, hs_buf++ )
-        {
+             offset++, hs_buf++) {
             *hs_buf = *(hs_buf + 1);
         }
 
         /* Create a fresh last entry */
-        memset( hs_buf, 0, sizeof( mbedtls_ssl_hs_buffer ) );
+        memset(hs_buf, 0, sizeof(mbedtls_ssl_hs_buffer));
     }
 #endif
 }
@@ -3215,24 +3116,24 @@
  * not seen yet).
  */
 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-void mbedtls_ssl_dtls_replay_reset( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_dtls_replay_reset(mbedtls_ssl_context *ssl)
 {
     ssl->in_window_top = 0;
     ssl->in_window = 0;
 }
 
-static inline uint64_t ssl_load_six_bytes( unsigned char *buf )
+static inline uint64_t ssl_load_six_bytes(unsigned char *buf)
 {
-    return( ( (uint64_t) buf[0] << 40 ) |
-            ( (uint64_t) buf[1] << 32 ) |
-            ( (uint64_t) buf[2] << 24 ) |
-            ( (uint64_t) buf[3] << 16 ) |
-            ( (uint64_t) buf[4] <<  8 ) |
-            ( (uint64_t) buf[5]       ) );
+    return ((uint64_t) buf[0] << 40) |
+           ((uint64_t) buf[1] << 32) |
+           ((uint64_t) buf[2] << 24) |
+           ((uint64_t) buf[3] << 16) |
+           ((uint64_t) buf[4] <<  8) |
+           ((uint64_t) buf[5]);
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int mbedtls_ssl_dtls_record_replay_check( mbedtls_ssl_context *ssl, uint8_t *record_in_ctr )
+static int mbedtls_ssl_dtls_record_replay_check(mbedtls_ssl_context *ssl, uint8_t *record_in_ctr)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char *original_in_ctr;
@@ -3243,7 +3144,7 @@
     // use counter from record
     ssl->in_ctr = record_in_ctr;
 
-    ret = mbedtls_ssl_dtls_replay_check( (mbedtls_ssl_context const *) ssl );
+    ret = mbedtls_ssl_dtls_replay_check((mbedtls_ssl_context const *) ssl);
 
     // restore the counter
     ssl->in_ctr = original_in_ctr;
@@ -3254,60 +3155,62 @@
 /*
  * Return 0 if sequence number is acceptable, -1 otherwise
  */
-int mbedtls_ssl_dtls_replay_check( mbedtls_ssl_context const *ssl )
+int mbedtls_ssl_dtls_replay_check(mbedtls_ssl_context const *ssl)
 {
-    uint64_t rec_seqnum = ssl_load_six_bytes( ssl->in_ctr + 2 );
+    uint64_t rec_seqnum = ssl_load_six_bytes(ssl->in_ctr + 2);
     uint64_t bit;
 
-    if( ssl->conf->anti_replay == MBEDTLS_SSL_ANTI_REPLAY_DISABLED )
-        return( 0 );
+    if (ssl->conf->anti_replay == MBEDTLS_SSL_ANTI_REPLAY_DISABLED) {
+        return 0;
+    }
 
-    if( rec_seqnum > ssl->in_window_top )
-        return( 0 );
+    if (rec_seqnum > ssl->in_window_top) {
+        return 0;
+    }
 
     bit = ssl->in_window_top - rec_seqnum;
 
-    if( bit >= 64 )
-        return( -1 );
+    if (bit >= 64) {
+        return -1;
+    }
 
-    if( ( ssl->in_window & ( (uint64_t) 1 << bit ) ) != 0 )
-        return( -1 );
+    if ((ssl->in_window & ((uint64_t) 1 << bit)) != 0) {
+        return -1;
+    }
 
-    return( 0 );
+    return 0;
 }
 
 /*
  * Update replay window on new validated record
  */
-void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_dtls_replay_update(mbedtls_ssl_context *ssl)
 {
-    uint64_t rec_seqnum = ssl_load_six_bytes( ssl->in_ctr + 2 );
+    uint64_t rec_seqnum = ssl_load_six_bytes(ssl->in_ctr + 2);
 
-    if( ssl->conf->anti_replay == MBEDTLS_SSL_ANTI_REPLAY_DISABLED )
+    if (ssl->conf->anti_replay == MBEDTLS_SSL_ANTI_REPLAY_DISABLED) {
         return;
+    }
 
-    if( rec_seqnum > ssl->in_window_top )
-    {
+    if (rec_seqnum > ssl->in_window_top) {
         /* Update window_top and the contents of the window */
         uint64_t shift = rec_seqnum - ssl->in_window_top;
 
-        if( shift >= 64 )
+        if (shift >= 64) {
             ssl->in_window = 1;
-        else
-        {
+        } else {
             ssl->in_window <<= shift;
             ssl->in_window |= 1;
         }
 
         ssl->in_window_top = rec_seqnum;
-    }
-    else
-    {
+    } else {
         /* Mark that number as seen in the current window */
         uint64_t bit = ssl->in_window_top - rec_seqnum;
 
-        if( bit < 64 ) /* Always true, but be extra sure */
+        if (bit < 64) { /* Always true, but be extra sure */
             ssl->in_window |= (uint64_t) 1 << bit;
+        }
     }
 }
 #endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */
@@ -3327,10 +3230,10 @@
 MBEDTLS_CHECK_RETURN_CRITICAL
 MBEDTLS_STATIC_TESTABLE
 int mbedtls_ssl_check_dtls_clihlo_cookie(
-                           mbedtls_ssl_context *ssl,
-                           const unsigned char *cli_id, size_t cli_id_len,
-                           const unsigned char *in, size_t in_len,
-                           unsigned char *obuf, size_t buf_len, size_t *olen )
+    mbedtls_ssl_context *ssl,
+    const unsigned char *cli_id, size_t cli_id_len,
+    const unsigned char *in, size_t in_len,
+    unsigned char *obuf, size_t buf_len, size_t *olen)
 {
     size_t sid_len, cookie_len, epoch, fragment_offset;
     unsigned char *p;
@@ -3361,56 +3264,51 @@
      *
      * Minimum length is 61 bytes.
      */
-    MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: in_len=%u",
-                                (unsigned) in_len ) );
-    MBEDTLS_SSL_DEBUG_BUF( 4, "cli_id", cli_id, cli_id_len );
-    if( in_len < 61 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: record too short" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    MBEDTLS_SSL_DEBUG_MSG(4, ("check cookie: in_len=%u",
+                              (unsigned) in_len));
+    MBEDTLS_SSL_DEBUG_BUF(4, "cli_id", cli_id, cli_id_len);
+    if (in_len < 61) {
+        MBEDTLS_SSL_DEBUG_MSG(4, ("check cookie: record too short"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    epoch = MBEDTLS_GET_UINT16_BE( in, 3 );
-    fragment_offset = MBEDTLS_GET_UINT24_BE( in, 19 );
+    epoch = MBEDTLS_GET_UINT16_BE(in, 3);
+    fragment_offset = MBEDTLS_GET_UINT24_BE(in, 19);
 
-    if( in[0] != MBEDTLS_SSL_MSG_HANDSHAKE || epoch != 0 ||
-        fragment_offset != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: not a good ClientHello" ) );
-        MBEDTLS_SSL_DEBUG_MSG( 4, ( "    type=%u epoch=%u fragment_offset=%u",
-                                    in[0], (unsigned) epoch,
-                                    (unsigned) fragment_offset ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (in[0] != MBEDTLS_SSL_MSG_HANDSHAKE || epoch != 0 ||
+        fragment_offset != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(4, ("check cookie: not a good ClientHello"));
+        MBEDTLS_SSL_DEBUG_MSG(4, ("    type=%u epoch=%u fragment_offset=%u",
+                                  in[0], (unsigned) epoch,
+                                  (unsigned) fragment_offset));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
     sid_len = in[59];
-    if( 59 + 1 + sid_len + 1 > in_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: sid_len=%u > %u",
-                                    (unsigned) sid_len,
-                                    (unsigned) in_len - 61 ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (59 + 1 + sid_len + 1 > in_len) {
+        MBEDTLS_SSL_DEBUG_MSG(4, ("check cookie: sid_len=%u > %u",
+                                  (unsigned) sid_len,
+                                  (unsigned) in_len - 61));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
-    MBEDTLS_SSL_DEBUG_BUF( 4, "sid received from network",
-                           in + 60, sid_len );
+    MBEDTLS_SSL_DEBUG_BUF(4, "sid received from network",
+                          in + 60, sid_len);
 
     cookie_len = in[60 + sid_len];
-    if( 59 + 1 + sid_len + 1 + cookie_len > in_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: cookie_len=%u > %u",
-                                    (unsigned) cookie_len,
-                                    (unsigned) ( in_len - sid_len - 61 ) ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (59 + 1 + sid_len + 1 + cookie_len > in_len) {
+        MBEDTLS_SSL_DEBUG_MSG(4, ("check cookie: cookie_len=%u > %u",
+                                  (unsigned) cookie_len,
+                                  (unsigned) (in_len - sid_len - 61)));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    MBEDTLS_SSL_DEBUG_BUF( 4, "cookie received from network",
-                           in + sid_len + 61, cookie_len );
-    if( ssl->conf->f_cookie_check( ssl->conf->p_cookie,
-                                   in + sid_len + 61, cookie_len,
-                                   cli_id, cli_id_len ) == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 4, ( "check cookie: valid" ) );
-        return( 0 );
+    MBEDTLS_SSL_DEBUG_BUF(4, "cookie received from network",
+                          in + sid_len + 61, cookie_len);
+    if (ssl->conf->f_cookie_check(ssl->conf->p_cookie,
+                                  in + sid_len + 61, cookie_len,
+                                  cli_id, cli_id_len) == 0) {
+        MBEDTLS_SSL_DEBUG_MSG(4, ("check cookie: valid"));
+        return 0;
     }
 
     /*
@@ -3433,36 +3331,36 @@
      *
      * Minimum length is 28.
      */
-    if( buf_len < 28 )
-        return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
+    if (buf_len < 28) {
+        return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
+    }
 
     /* Copy most fields and adapt others */
-    memcpy( obuf, in, 25 );
+    memcpy(obuf, in, 25);
     obuf[13] = MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST;
     obuf[25] = 0xfe;
     obuf[26] = 0xff;
 
     /* Generate and write actual cookie */
     p = obuf + 28;
-    if( ssl->conf->f_cookie_write( ssl->conf->p_cookie,
-                                   &p, obuf + buf_len,
-                                   cli_id, cli_id_len ) != 0 )
-    {
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    if (ssl->conf->f_cookie_write(ssl->conf->p_cookie,
+                                  &p, obuf + buf_len,
+                                  cli_id, cli_id_len) != 0) {
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
     *olen = p - obuf;
 
     /* Go back and fill length fields */
-    obuf[27] = (unsigned char)( *olen - 28 );
+    obuf[27] = (unsigned char) (*olen - 28);
 
-    obuf[14] = obuf[22] = MBEDTLS_BYTE_2( *olen - 25 );
-    obuf[15] = obuf[23] = MBEDTLS_BYTE_1( *olen - 25 );
-    obuf[16] = obuf[24] = MBEDTLS_BYTE_0( *olen - 25 );
+    obuf[14] = obuf[22] = MBEDTLS_BYTE_2(*olen - 25);
+    obuf[15] = obuf[23] = MBEDTLS_BYTE_1(*olen - 25);
+    obuf[16] = obuf[24] = MBEDTLS_BYTE_0(*olen - 25);
 
-    MBEDTLS_PUT_UINT16_BE( *olen - 13, obuf, 11 );
+    MBEDTLS_PUT_UINT16_BE(*olen - 13, obuf, 11);
 
-    return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED );
+    return MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED;
 }
 
 /*
@@ -3486,73 +3384,68 @@
  * errors, and is the right thing to do in both cases).
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_handle_possible_reconnect( mbedtls_ssl_context *ssl )
+static int ssl_handle_possible_reconnect(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t len;
 
-    if( ssl->conf->f_cookie_write == NULL ||
-        ssl->conf->f_cookie_check == NULL )
-    {
+    if (ssl->conf->f_cookie_write == NULL ||
+        ssl->conf->f_cookie_check == NULL) {
         /* If we can't use cookies to verify reachability of the peer,
          * drop the record. */
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "no cookie callbacks, "
-                                    "can't check reconnect validity" ) );
-        return( 0 );
+        MBEDTLS_SSL_DEBUG_MSG(1, ("no cookie callbacks, "
+                                  "can't check reconnect validity"));
+        return 0;
     }
 
     ret = mbedtls_ssl_check_dtls_clihlo_cookie(
-            ssl,
-            ssl->cli_id, ssl->cli_id_len,
-            ssl->in_buf, ssl->in_left,
-            ssl->out_buf, MBEDTLS_SSL_OUT_CONTENT_LEN, &len );
+        ssl,
+        ssl->cli_id, ssl->cli_id_len,
+        ssl->in_buf, ssl->in_left,
+        ssl->out_buf, MBEDTLS_SSL_OUT_CONTENT_LEN, &len);
 
-    MBEDTLS_SSL_DEBUG_RET( 2, "mbedtls_ssl_check_dtls_clihlo_cookie", ret );
+    MBEDTLS_SSL_DEBUG_RET(2, "mbedtls_ssl_check_dtls_clihlo_cookie", ret);
 
-    if( ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED )
-    {
+    if (ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED) {
         int send_ret;
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "sending HelloVerifyRequest" ) );
-        MBEDTLS_SSL_DEBUG_BUF( 4, "output record sent to network",
-                                  ssl->out_buf, len );
+        MBEDTLS_SSL_DEBUG_MSG(1, ("sending HelloVerifyRequest"));
+        MBEDTLS_SSL_DEBUG_BUF(4, "output record sent to network",
+                              ssl->out_buf, len);
         /* Don't check write errors as we can't do anything here.
          * If the error is permanent we'll catch it later,
          * if it's not, then hopefully it'll work next time. */
-        send_ret = ssl->f_send( ssl->p_bio, ssl->out_buf, len );
-        MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_send", send_ret );
+        send_ret = ssl->f_send(ssl->p_bio, ssl->out_buf, len);
+        MBEDTLS_SSL_DEBUG_RET(2, "ssl->f_send", send_ret);
         (void) send_ret;
 
-        return( 0 );
+        return 0;
     }
 
-    if( ret == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "cookie is valid, resetting context" ) );
-        if( ( ret = mbedtls_ssl_session_reset_int( ssl, 1 ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "reset", ret );
-            return( ret );
+    if (ret == 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("cookie is valid, resetting context"));
+        if ((ret = mbedtls_ssl_session_reset_int(ssl, 1)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "reset", ret);
+            return ret;
         }
 
-        return( MBEDTLS_ERR_SSL_CLIENT_RECONNECT );
+        return MBEDTLS_ERR_SSL_CLIENT_RECONNECT;
     }
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_check_record_type( uint8_t record_type )
+static int ssl_check_record_type(uint8_t record_type)
 {
-    if( record_type != MBEDTLS_SSL_MSG_HANDSHAKE &&
+    if (record_type != MBEDTLS_SSL_MSG_HANDSHAKE &&
         record_type != MBEDTLS_SSL_MSG_ALERT &&
         record_type != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC &&
-        record_type != MBEDTLS_SSL_MSG_APPLICATION_DATA )
-    {
-        return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+        record_type != MBEDTLS_SSL_MSG_APPLICATION_DATA) {
+        return MBEDTLS_ERR_SSL_INVALID_RECORD;
     }
 
-    return( 0 );
+    return 0;
 }
 
 /*
@@ -3575,10 +3468,10 @@
  * the first record from a datagram but are still waiting for the others.
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_record_header( mbedtls_ssl_context const *ssl,
-                                    unsigned char *buf,
-                                    size_t len,
-                                    mbedtls_record *rec )
+static int ssl_parse_record_header(mbedtls_ssl_context const *ssl,
+                                   unsigned char *buf,
+                                   size_t len,
+                                   mbedtls_record *rec)
 {
     mbedtls_ssl_protocol_version tls_version;
 
@@ -3610,38 +3503,36 @@
      */
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         rec_hdr_len_offset = rec_hdr_ctr_offset + rec_hdr_ctr_len;
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
     {
         rec_hdr_len_offset = rec_hdr_version_offset + rec_hdr_version_len;
     }
 
-    if( len < rec_hdr_len_offset + rec_hdr_len_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "datagram of length %u too small to hold DTLS record header of length %u",
-                 (unsigned) len,
-                 (unsigned)( rec_hdr_len_len + rec_hdr_len_len ) ) );
-        return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+    if (len < rec_hdr_len_offset + rec_hdr_len_len) {
+        MBEDTLS_SSL_DEBUG_MSG(1,
+                              (
+                                  "datagram of length %u too small to hold DTLS record header of length %u",
+                                  (unsigned) len,
+                                  (unsigned) (rec_hdr_len_len + rec_hdr_len_len)));
+        return MBEDTLS_ERR_SSL_INVALID_RECORD;
     }
 
     /*
      * Parse and validate record content type
      */
 
-    rec->type = buf[ rec_hdr_type_offset ];
+    rec->type = buf[rec_hdr_type_offset];
 
     /* Check record content type */
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
     rec->cid_len = 0;
 
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
         ssl->conf->cid_len != 0                                &&
-        rec->type == MBEDTLS_SSL_MSG_CID )
-    {
+        rec->type == MBEDTLS_SSL_MSG_CID) {
         /* Shift pointers to account for record header including CID
          * struct {
          *   ContentType outer_type = tls12_cid;
@@ -3660,62 +3551,58 @@
         rec_hdr_cid_len = ssl->conf->cid_len;
         rec_hdr_len_offset += rec_hdr_cid_len;
 
-        if( len < rec_hdr_len_offset + rec_hdr_len_len )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "datagram of length %u too small to hold DTLS record header including CID, length %u",
-                (unsigned) len,
-                (unsigned)( rec_hdr_len_offset + rec_hdr_len_len ) ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+        if (len < rec_hdr_len_offset + rec_hdr_len_len) {
+            MBEDTLS_SSL_DEBUG_MSG(1,
+                                  (
+                                      "datagram of length %u too small to hold DTLS record header including CID, length %u",
+                                      (unsigned) len,
+                                      (unsigned) (rec_hdr_len_offset + rec_hdr_len_len)));
+            return MBEDTLS_ERR_SSL_INVALID_RECORD;
         }
 
         /* configured CID len is guaranteed at most 255, see
          * MBEDTLS_SSL_CID_OUT_LEN_MAX in check_config.h */
         rec->cid_len = (uint8_t) rec_hdr_cid_len;
-        memcpy( rec->cid, buf + rec_hdr_cid_offset, rec_hdr_cid_len );
-    }
-    else
+        memcpy(rec->cid, buf + rec_hdr_cid_offset, rec_hdr_cid_len);
+    } else
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
     {
-        if( ssl_check_record_type( rec->type ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "unknown record type %u",
-                                        (unsigned) rec->type ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+        if (ssl_check_record_type(rec->type)) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("unknown record type %u",
+                                      (unsigned) rec->type));
+            return MBEDTLS_ERR_SSL_INVALID_RECORD;
         }
     }
 
     /*
      * Parse and validate record version
      */
-    rec->ver[0] = buf[ rec_hdr_version_offset + 0 ];
-    rec->ver[1] = buf[ rec_hdr_version_offset + 1 ];
-    tls_version = mbedtls_ssl_read_version( buf + rec_hdr_version_offset,
-                                            ssl->conf->transport );
+    rec->ver[0] = buf[rec_hdr_version_offset + 0];
+    rec->ver[1] = buf[rec_hdr_version_offset + 1];
+    tls_version = mbedtls_ssl_read_version(buf + rec_hdr_version_offset,
+                                           ssl->conf->transport);
 
-    if( tls_version > ssl->conf->max_tls_version )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLS version mismatch: got %u, expected max %u",
-                                    (unsigned) tls_version,
-                                    (unsigned) ssl->conf->max_tls_version) );
+    if (tls_version > ssl->conf->max_tls_version) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("TLS version mismatch: got %u, expected max %u",
+                                  (unsigned) tls_version,
+                                  (unsigned) ssl->conf->max_tls_version));
 
-        return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+        return MBEDTLS_ERR_SSL_INVALID_RECORD;
     }
     /*
      * Parse/Copy record sequence number.
      */
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         /* Copy explicit record sequence number from input buffer. */
-        memcpy( &rec->ctr[0], buf + rec_hdr_ctr_offset,
-                rec_hdr_ctr_len );
-    }
-    else
+        memcpy(&rec->ctr[0], buf + rec_hdr_ctr_offset,
+               rec_hdr_ctr_len);
+    } else
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
     {
         /* Copy implicit record sequence number from SSL context structure. */
-        memcpy( &rec->ctr[0], ssl->in_ctr, rec_hdr_ctr_len );
+        memcpy(&rec->ctr[0], ssl->in_ctr, rec_hdr_ctr_len);
     }
 
     /*
@@ -3723,19 +3610,20 @@
      */
 
     rec->data_offset = rec_hdr_len_offset + rec_hdr_len_len;
-    rec->data_len    = ( (size_t) buf[ rec_hdr_len_offset + 0 ] << 8 ) |
-                       ( (size_t) buf[ rec_hdr_len_offset + 1 ] << 0 );
-    MBEDTLS_SSL_DEBUG_BUF( 4, "input record header", buf, rec->data_offset );
+    rec->data_len    = ((size_t) buf[rec_hdr_len_offset + 0] << 8) |
+                       ((size_t) buf[rec_hdr_len_offset + 1] << 0);
+    MBEDTLS_SSL_DEBUG_BUF(4, "input record header", buf, rec->data_offset);
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "input record: msgtype = %u, "
-                                "version = [0x%x], msglen = %" MBEDTLS_PRINTF_SIZET,
-                                rec->type, (unsigned)tls_version, rec->data_len ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("input record: msgtype = %u, "
+                              "version = [0x%x], msglen = %" MBEDTLS_PRINTF_SIZET,
+                              rec->type, (unsigned) tls_version, rec->data_len));
 
     rec->buf     = buf;
     rec->buf_len = rec->data_offset + rec->data_len;
 
-    if( rec->data_len == 0 )
-        return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+    if (rec->data_len == 0) {
+        return MBEDTLS_ERR_SSL_INVALID_RECORD;
+    }
 
     /*
      * DTLS-related tests.
@@ -3750,61 +3638,58 @@
      * record leads to the entire datagram being dropped.
      */
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        rec_epoch = ( rec->ctr[0] << 8 ) | rec->ctr[1];
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        rec_epoch = (rec->ctr[0] << 8) | rec->ctr[1];
 
         /* Check that the datagram is large enough to contain a record
          * of the advertised length. */
-        if( len < rec->data_offset + rec->data_len )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Datagram of length %u too small to contain record of advertised length %u.",
-                             (unsigned) len,
-                             (unsigned)( rec->data_offset + rec->data_len ) ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+        if (len < rec->data_offset + rec->data_len) {
+            MBEDTLS_SSL_DEBUG_MSG(1,
+                                  (
+                                      "Datagram of length %u too small to contain record of advertised length %u.",
+                                      (unsigned) len,
+                                      (unsigned) (rec->data_offset + rec->data_len)));
+            return MBEDTLS_ERR_SSL_INVALID_RECORD;
         }
 
         /* Records from other, non-matching epochs are silently discarded.
          * (The case of same-port Client reconnects must be considered in
          *  the caller). */
-        if( rec_epoch != ssl->in_epoch )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "record from another epoch: "
-                                        "expected %u, received %lu",
-                                        ssl->in_epoch, (unsigned long) rec_epoch ) );
+        if (rec_epoch != ssl->in_epoch) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("record from another epoch: "
+                                      "expected %u, received %lu",
+                                      ssl->in_epoch, (unsigned long) rec_epoch));
 
             /* Records from the next epoch are considered for buffering
              * (concretely: early Finished messages). */
-            if( rec_epoch == (unsigned) ssl->in_epoch + 1 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "Consider record for buffering" ) );
-                return( MBEDTLS_ERR_SSL_EARLY_MESSAGE );
+            if (rec_epoch == (unsigned) ssl->in_epoch + 1) {
+                MBEDTLS_SSL_DEBUG_MSG(2, ("Consider record for buffering"));
+                return MBEDTLS_ERR_SSL_EARLY_MESSAGE;
             }
 
-            return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD );
+            return MBEDTLS_ERR_SSL_UNEXPECTED_RECORD;
         }
 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
         /* For records from the correct epoch, check whether their
          * sequence number has been seen before. */
-        else if( mbedtls_ssl_dtls_record_replay_check( (mbedtls_ssl_context *) ssl,
-            &rec->ctr[0] ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "replayed record" ) );
-            return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD );
+        else if (mbedtls_ssl_dtls_record_replay_check((mbedtls_ssl_context *) ssl,
+                                                      &rec->ctr[0]) != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("replayed record"));
+            return MBEDTLS_ERR_SSL_UNEXPECTED_RECORD;
         }
 #endif
     }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-    return( 0 );
+    return 0;
 }
 
 
 #if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_check_client_reconnect( mbedtls_ssl_context *ssl )
+static int ssl_check_client_reconnect(mbedtls_ssl_context *ssl)
 {
-    unsigned int rec_epoch = ( ssl->in_ctr[0] << 8 ) | ssl->in_ctr[1];
+    unsigned int rec_epoch = (ssl->in_ctr[0] << 8) | ssl->in_ctr[1];
 
     /*
      * Check for an epoch 0 ClientHello. We can't use in_msg here to
@@ -3812,19 +3697,18 @@
      * have an active transform (possibly iv_len != 0), so use the
      * fact that the record header len is 13 instead.
      */
-    if( rec_epoch == 0 &&
+    if (rec_epoch == 0 &&
         ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
-        mbedtls_ssl_is_handshake_over( ssl ) == 1 &&
+        mbedtls_ssl_is_handshake_over(ssl) == 1 &&
         ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
         ssl->in_left > 13 &&
-        ssl->in_buf[13] == MBEDTLS_SSL_HS_CLIENT_HELLO )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "possible client reconnect "
-                                    "from the same port" ) );
-        return( ssl_handle_possible_reconnect( ssl ) );
+        ssl->in_buf[13] == MBEDTLS_SSL_HS_CLIENT_HELLO) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("possible client reconnect "
+                                  "from the same port"));
+        return ssl_handle_possible_reconnect(ssl);
     }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */
 
@@ -3832,13 +3716,13 @@
  * If applicable, decrypt record content
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_prepare_record_content( mbedtls_ssl_context *ssl,
-                                       mbedtls_record *rec )
+static int ssl_prepare_record_content(mbedtls_ssl_context *ssl,
+                                      mbedtls_record *rec)
 {
     int ret, done = 0;
 
-    MBEDTLS_SSL_DEBUG_BUF( 4, "input record from network",
-                           rec->buf, rec->buf_len );
+    MBEDTLS_SSL_DEBUG_BUF(4, "input record from network",
+                          rec->buf, rec->buf_len);
 
     /*
      * In TLS 1.3, always treat ChangeCipherSpec records
@@ -3846,44 +3730,40 @@
      * check the length and content and ignore them.
      */
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
-    if( ssl->transform_in != NULL &&
-        ssl->transform_in->tls_version == MBEDTLS_SSL_VERSION_TLS1_3 )
-    {
-        if( rec->type == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
+    if (ssl->transform_in != NULL &&
+        ssl->transform_in->tls_version == MBEDTLS_SSL_VERSION_TLS1_3) {
+        if (rec->type == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC) {
             done = 1;
+        }
     }
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
 
-    if( !done && ssl->transform_in != NULL )
-    {
+    if (!done && ssl->transform_in != NULL) {
         unsigned char const old_msg_type = rec->type;
 
-        if( ( ret = mbedtls_ssl_decrypt_buf( ssl, ssl->transform_in,
-                                             rec ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "ssl_decrypt_buf", ret );
+        if ((ret = mbedtls_ssl_decrypt_buf(ssl, ssl->transform_in,
+                                           rec)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "ssl_decrypt_buf", ret);
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
-            if( ret == MBEDTLS_ERR_SSL_UNEXPECTED_CID &&
+            if (ret == MBEDTLS_ERR_SSL_UNEXPECTED_CID &&
                 ssl->conf->ignore_unexpected_cid
-                    == MBEDTLS_SSL_UNEXPECTED_CID_IGNORE )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "ignoring unexpected CID" ) );
+                == MBEDTLS_SSL_UNEXPECTED_CID_IGNORE) {
+                MBEDTLS_SSL_DEBUG_MSG(3, ("ignoring unexpected CID"));
                 ret = MBEDTLS_ERR_SSL_CONTINUE_PROCESSING;
             }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
-            return( ret );
+            return ret;
         }
 
-        if( old_msg_type != rec->type )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 4, ( "record type after decrypt (before %d): %d",
-                                        old_msg_type, rec->type ) );
+        if (old_msg_type != rec->type) {
+            MBEDTLS_SSL_DEBUG_MSG(4, ("record type after decrypt (before %d): %d",
+                                      old_msg_type, rec->type));
         }
 
-        MBEDTLS_SSL_DEBUG_BUF( 4, "input payload after decrypt",
-                               rec->buf + rec->data_offset, rec->data_len );
+        MBEDTLS_SSL_DEBUG_BUF(4, "input payload after decrypt",
+                              rec->buf + rec->data_offset, rec->data_len);
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
         /* We have already checked the record content type
@@ -3893,22 +3773,19 @@
          * Since with the use of CIDs, the record content type
          * might change during decryption, re-check the record
          * content type, but treat a failure as fatal this time. */
-        if( ssl_check_record_type( rec->type ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "unknown record type" ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+        if (ssl_check_record_type(rec->type)) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("unknown record type"));
+            return MBEDTLS_ERR_SSL_INVALID_RECORD;
         }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
-        if( rec->data_len == 0 )
-        {
+        if (rec->data_len == 0) {
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-            if( ssl->tls_version == MBEDTLS_SSL_VERSION_TLS1_2
-                && rec->type != MBEDTLS_SSL_MSG_APPLICATION_DATA )
-            {
+            if (ssl->tls_version == MBEDTLS_SSL_VERSION_TLS1_2
+                && rec->type != MBEDTLS_SSL_MSG_APPLICATION_DATA) {
                 /* TLS v1.2 explicitly disallows zero-length messages which are not application data */
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid zero-length message type: %d", ssl->in_msgtype ) );
-                return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+                MBEDTLS_SSL_DEBUG_MSG(1, ("invalid zero-length message type: %d", ssl->in_msgtype));
+                return MBEDTLS_ERR_SSL_INVALID_RECORD;
             }
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
@@ -3918,61 +3795,55 @@
              * Three or more empty messages may be a DoS attack
              * (excessive CPU consumption).
              */
-            if( ssl->nb_zero > 3 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "received four consecutive empty "
-                                            "messages, possible DoS attack" ) );
+            if (ssl->nb_zero > 3) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("received four consecutive empty "
+                                          "messages, possible DoS attack"));
                 /* Treat the records as if they were not properly authenticated,
                  * thereby failing the connection if we see more than allowed
                  * by the configured bad MAC threshold. */
-                return( MBEDTLS_ERR_SSL_INVALID_MAC );
+                return MBEDTLS_ERR_SSL_INVALID_MAC;
             }
-        }
-        else
+        } else {
             ssl->nb_zero = 0;
+        }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        {
+        if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
             ; /* in_ctr read from peer, not maintained internally */
-        }
-        else
+        } else
 #endif
         {
             unsigned i;
-            for( i = MBEDTLS_SSL_SEQUENCE_NUMBER_LEN;
-                 i > mbedtls_ssl_ep_len( ssl ); i-- )
-            {
-                if( ++ssl->in_ctr[i - 1] != 0 )
+            for (i = MBEDTLS_SSL_SEQUENCE_NUMBER_LEN;
+                 i > mbedtls_ssl_ep_len(ssl); i--) {
+                if (++ssl->in_ctr[i - 1] != 0) {
                     break;
+                }
             }
 
             /* The loop goes to its end iff the counter is wrapping */
-            if( i == mbedtls_ssl_ep_len( ssl ) )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "incoming message counter would wrap" ) );
-                return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING );
+            if (i == mbedtls_ssl_ep_len(ssl)) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("incoming message counter would wrap"));
+                return MBEDTLS_ERR_SSL_COUNTER_WRAPPING;
             }
         }
 
     }
 
 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        mbedtls_ssl_dtls_replay_update( ssl );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        mbedtls_ssl_dtls_replay_update(ssl);
     }
 #endif
 
     /* Check actual (decrypted) record content length against
      * configured maximum. */
-    if( rec->data_len > MBEDTLS_SSL_IN_CONTENT_LEN )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
-        return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+    if (rec->data_len > MBEDTLS_SSL_IN_CONTENT_LEN) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad message length"));
+        return MBEDTLS_ERR_SSL_INVALID_RECORD;
     }
 
-    return( 0 );
+    return 0;
 }
 
 /*
@@ -3985,131 +3856,125 @@
 
 /* Helper functions for mbedtls_ssl_read_record(). */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_consume_current_message( mbedtls_ssl_context *ssl );
+static int ssl_consume_current_message(mbedtls_ssl_context *ssl);
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_get_next_record( mbedtls_ssl_context *ssl );
+static int ssl_get_next_record(mbedtls_ssl_context *ssl);
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_record_is_in_progress( mbedtls_ssl_context *ssl );
+static int ssl_record_is_in_progress(mbedtls_ssl_context *ssl);
 
-int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl,
-                             unsigned update_hs_digest )
+int mbedtls_ssl_read_record(mbedtls_ssl_context *ssl,
+                            unsigned update_hs_digest)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> read record" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> read record"));
 
-    if( ssl->keep_current_message == 0 )
-    {
+    if (ssl->keep_current_message == 0) {
         do {
 
-            ret = ssl_consume_current_message( ssl );
-            if( ret != 0 )
-                return( ret );
+            ret = ssl_consume_current_message(ssl);
+            if (ret != 0) {
+                return ret;
+            }
 
-            if( ssl_record_is_in_progress( ssl ) == 0 )
-            {
+            if (ssl_record_is_in_progress(ssl) == 0) {
                 int dtls_have_buffered = 0;
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
 
                 /* We only check for buffered messages if the
                  * current datagram is fully consumed. */
-                if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-                    ssl_next_record_is_in_datagram( ssl ) == 0 )
-                {
-                    if( ssl_load_buffered_message( ssl ) == 0 )
+                if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+                    ssl_next_record_is_in_datagram(ssl) == 0) {
+                    if (ssl_load_buffered_message(ssl) == 0) {
                         dtls_have_buffered = 1;
+                    }
                 }
 
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
-                if( dtls_have_buffered == 0 )
-                {
-                    ret = ssl_get_next_record( ssl );
-                    if( ret == MBEDTLS_ERR_SSL_CONTINUE_PROCESSING )
+                if (dtls_have_buffered == 0) {
+                    ret = ssl_get_next_record(ssl);
+                    if (ret == MBEDTLS_ERR_SSL_CONTINUE_PROCESSING) {
                         continue;
+                    }
 
-                    if( ret != 0 )
-                    {
-                        MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_get_next_record" ), ret );
-                        return( ret );
+                    if (ret != 0) {
+                        MBEDTLS_SSL_DEBUG_RET(1, ("ssl_get_next_record"), ret);
+                        return ret;
                     }
                 }
             }
 
-            ret = mbedtls_ssl_handle_message_type( ssl );
+            ret = mbedtls_ssl_handle_message_type(ssl);
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-            if( ret == MBEDTLS_ERR_SSL_EARLY_MESSAGE )
-            {
+            if (ret == MBEDTLS_ERR_SSL_EARLY_MESSAGE) {
                 /* Buffer future message */
-                ret = ssl_buffer_message( ssl );
-                if( ret != 0 )
-                    return( ret );
+                ret = ssl_buffer_message(ssl);
+                if (ret != 0) {
+                    return ret;
+                }
 
                 ret = MBEDTLS_ERR_SSL_CONTINUE_PROCESSING;
             }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-        } while( MBEDTLS_ERR_SSL_NON_FATAL           == ret  ||
-                 MBEDTLS_ERR_SSL_CONTINUE_PROCESSING == ret );
+        } while (MBEDTLS_ERR_SSL_NON_FATAL           == ret  ||
+                 MBEDTLS_ERR_SSL_CONTINUE_PROCESSING == ret);
 
-        if( 0 != ret )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ssl_handle_message_type" ), ret );
-            return( ret );
+        if (0 != ret) {
+            MBEDTLS_SSL_DEBUG_RET(1, ("mbedtls_ssl_handle_message_type"), ret);
+            return ret;
         }
 
-        if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
-            update_hs_digest == 1 )
-        {
-            mbedtls_ssl_update_handshake_status( ssl );
+        if (ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
+            update_hs_digest == 1) {
+            mbedtls_ssl_update_handshake_status(ssl);
         }
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "reuse previously read message" ) );
+    } else {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("reuse previously read message"));
         ssl->keep_current_message = 0;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= read record" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= read record"));
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl )
+static int ssl_next_record_is_in_datagram(mbedtls_ssl_context *ssl)
 {
-    if( ssl->in_left > ssl->next_record_offset )
-        return( 1 );
+    if (ssl->in_left > ssl->next_record_offset) {
+        return 1;
+    }
 
-    return( 0 );
+    return 0;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_load_buffered_message( mbedtls_ssl_context *ssl )
+static int ssl_load_buffered_message(mbedtls_ssl_context *ssl)
 {
     mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-    mbedtls_ssl_hs_buffer * hs_buf;
+    mbedtls_ssl_hs_buffer *hs_buf;
     int ret = 0;
 
-    if( hs == NULL )
-        return( -1 );
+    if (hs == NULL) {
+        return -1;
+    }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_load_buffered_message" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> ssl_load_buffered_message"));
 
-    if( ssl->state == MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC ||
-        ssl->state == MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC )
-    {
+    if (ssl->state == MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC ||
+        ssl->state == MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC) {
         /* Check if we have seen a ChangeCipherSpec before.
          * If yes, synthesize a CCS record. */
-        if( !hs->buffering.seen_ccs )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "CCS not seen in the current flight" ) );
+        if (!hs->buffering.seen_ccs) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("CCS not seen in the current flight"));
             ret = -1;
             goto exit;
         }
 
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Injecting buffered CCS message" ) );
+        MBEDTLS_SSL_DEBUG_MSG(2, ("Injecting buffered CCS message"));
         ssl->in_msgtype = MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC;
         ssl->in_msglen = 1;
         ssl->in_msg[0] = 1;
@@ -4126,14 +3991,12 @@
     /* Debug only */
     {
         unsigned offset;
-        for( offset = 1; offset < MBEDTLS_SSL_MAX_BUFFERED_HS; offset++ )
-        {
+        for (offset = 1; offset < MBEDTLS_SSL_MAX_BUFFERED_HS; offset++) {
             hs_buf = &hs->buffering.hs[offset];
-            if( hs_buf->is_valid == 1 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "Future message with sequence number %u %s buffered.",
-                            hs->in_msg_seq + offset,
-                            hs_buf->is_complete ? "fully" : "partially" ) );
+            if (hs_buf->is_valid == 1) {
+                MBEDTLS_SSL_DEBUG_MSG(2, ("Future message with sequence number %u %s buffered.",
+                                          hs->in_msg_seq + offset,
+                                          hs_buf->is_complete ? "fully" : "partially"));
             }
         }
     }
@@ -4142,105 +4005,100 @@
     /* Check if we have buffered and/or fully reassembled the
      * next handshake message. */
     hs_buf = &hs->buffering.hs[0];
-    if( ( hs_buf->is_valid == 1 ) && ( hs_buf->is_complete == 1 ) )
-    {
+    if ((hs_buf->is_valid == 1) && (hs_buf->is_complete == 1)) {
         /* Synthesize a record containing the buffered HS message. */
-        size_t msg_len = ( hs_buf->data[1] << 16 ) |
-                         ( hs_buf->data[2] << 8  ) |
-                           hs_buf->data[3];
+        size_t msg_len = (hs_buf->data[1] << 16) |
+                         (hs_buf->data[2] << 8) |
+                         hs_buf->data[3];
 
         /* Double-check that we haven't accidentally buffered
          * a message that doesn't fit into the input buffer. */
-        if( msg_len + 12 > MBEDTLS_SSL_IN_CONTENT_LEN )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        if (msg_len + 12 > MBEDTLS_SSL_IN_CONTENT_LEN) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
 
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Next handshake message has been buffered - load" ) );
-        MBEDTLS_SSL_DEBUG_BUF( 3, "Buffered handshake message (incl. header)",
-                               hs_buf->data, msg_len + 12 );
+        MBEDTLS_SSL_DEBUG_MSG(2, ("Next handshake message has been buffered - load"));
+        MBEDTLS_SSL_DEBUG_BUF(3, "Buffered handshake message (incl. header)",
+                              hs_buf->data, msg_len + 12);
 
         ssl->in_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
         ssl->in_hslen   = msg_len + 12;
         ssl->in_msglen  = msg_len + 12;
-        memcpy( ssl->in_msg, hs_buf->data, ssl->in_hslen );
+        memcpy(ssl->in_msg, hs_buf->data, ssl->in_hslen);
 
         ret = 0;
         goto exit;
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Next handshake message %u not or only partially bufffered",
-                                    hs->in_msg_seq ) );
+    } else {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("Next handshake message %u not or only partially bufffered",
+                                  hs->in_msg_seq));
     }
 
     ret = -1;
 
 exit:
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_load_buffered_message" ) );
-    return( ret );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= ssl_load_buffered_message"));
+    return ret;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_buffer_make_space( mbedtls_ssl_context *ssl,
-                                  size_t desired )
+static int ssl_buffer_make_space(mbedtls_ssl_context *ssl,
+                                 size_t desired)
 {
     int offset;
     mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "Attempt to free buffered messages to have %u bytes available",
-                                (unsigned) desired ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("Attempt to free buffered messages to have %u bytes available",
+                              (unsigned) desired));
 
     /* Get rid of future records epoch first, if such exist. */
-    ssl_free_buffered_record( ssl );
+    ssl_free_buffered_record(ssl);
 
     /* Check if we have enough space available now. */
-    if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
-                     hs->buffering.total_bytes_buffered ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Enough space available after freeing future epoch record" ) );
-        return( 0 );
+    if (desired <= (MBEDTLS_SSL_DTLS_MAX_BUFFERING -
+                    hs->buffering.total_bytes_buffered)) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("Enough space available after freeing future epoch record"));
+        return 0;
     }
 
     /* We don't have enough space to buffer the next expected handshake
      * message. Remove buffers used for future messages to gain space,
      * starting with the most distant one. */
-    for( offset = MBEDTLS_SSL_MAX_BUFFERED_HS - 1;
-         offset >= 0; offset-- )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Free buffering slot %d to make space for reassembly of next handshake message",
-                                    offset ) );
+    for (offset = MBEDTLS_SSL_MAX_BUFFERED_HS - 1;
+         offset >= 0; offset--) {
+        MBEDTLS_SSL_DEBUG_MSG(2,
+                              (
+                                  "Free buffering slot %d to make space for reassembly of next handshake message",
+                                  offset));
 
-        ssl_buffering_free_slot( ssl, (uint8_t) offset );
+        ssl_buffering_free_slot(ssl, (uint8_t) offset);
 
         /* Check if we have enough space available now. */
-        if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
-                         hs->buffering.total_bytes_buffered ) )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "Enough space available after freeing buffered HS messages" ) );
-            return( 0 );
+        if (desired <= (MBEDTLS_SSL_DTLS_MAX_BUFFERING -
+                        hs->buffering.total_bytes_buffered)) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("Enough space available after freeing buffered HS messages"));
+            return 0;
         }
     }
 
-    return( -1 );
+    return -1;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_buffer_message( mbedtls_ssl_context *ssl )
+static int ssl_buffer_message(mbedtls_ssl_context *ssl)
 {
     int ret = 0;
     mbedtls_ssl_handshake_params * const hs = ssl->handshake;
 
-    if( hs == NULL )
-        return( 0 );
+    if (hs == NULL) {
+        return 0;
+    }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_buffer_message" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> ssl_buffer_message"));
 
-    switch( ssl->in_msgtype )
-    {
+    switch (ssl->in_msgtype) {
         case MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC:
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "Remember CCS message" ) );
+            MBEDTLS_SSL_DEBUG_MSG(2, ("Remember CCS message"));
 
             hs->buffering.seen_ccs = 1;
             break;
@@ -4248,113 +4106,115 @@
         case MBEDTLS_SSL_MSG_HANDSHAKE:
         {
             unsigned recv_msg_seq_offset;
-            unsigned recv_msg_seq = ( ssl->in_msg[4] << 8 ) | ssl->in_msg[5];
+            unsigned recv_msg_seq = (ssl->in_msg[4] << 8) | ssl->in_msg[5];
             mbedtls_ssl_hs_buffer *hs_buf;
             size_t msg_len = ssl->in_hslen - 12;
 
             /* We should never receive an old handshake
              * message - double-check nonetheless. */
-            if( recv_msg_seq < ssl->handshake->in_msg_seq )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-                return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+            if (recv_msg_seq < ssl->handshake->in_msg_seq) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+                return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
             }
 
             recv_msg_seq_offset = recv_msg_seq - ssl->handshake->in_msg_seq;
-            if( recv_msg_seq_offset >= MBEDTLS_SSL_MAX_BUFFERED_HS )
-            {
+            if (recv_msg_seq_offset >= MBEDTLS_SSL_MAX_BUFFERED_HS) {
                 /* Silently ignore -- message too far in the future */
-                MBEDTLS_SSL_DEBUG_MSG( 2,
-                 ( "Ignore future HS message with sequence number %u, "
-                   "buffering window %u - %u",
-                   recv_msg_seq, ssl->handshake->in_msg_seq,
-                   ssl->handshake->in_msg_seq + MBEDTLS_SSL_MAX_BUFFERED_HS - 1 ) );
+                MBEDTLS_SSL_DEBUG_MSG(2,
+                                      ("Ignore future HS message with sequence number %u, "
+                                       "buffering window %u - %u",
+                                       recv_msg_seq, ssl->handshake->in_msg_seq,
+                                       ssl->handshake->in_msg_seq + MBEDTLS_SSL_MAX_BUFFERED_HS -
+                                       1));
 
                 goto exit;
             }
 
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering HS message with sequence number %u, offset %u ",
-                                        recv_msg_seq, recv_msg_seq_offset ) );
+            MBEDTLS_SSL_DEBUG_MSG(2, ("Buffering HS message with sequence number %u, offset %u ",
+                                      recv_msg_seq, recv_msg_seq_offset));
 
-            hs_buf = &hs->buffering.hs[ recv_msg_seq_offset ];
+            hs_buf = &hs->buffering.hs[recv_msg_seq_offset];
 
             /* Check if the buffering for this seq nr has already commenced. */
-            if( !hs_buf->is_valid )
-            {
+            if (!hs_buf->is_valid) {
                 size_t reassembly_buf_sz;
 
                 hs_buf->is_fragmented =
-                    ( ssl_hs_is_proper_fragment( ssl ) == 1 );
+                    (ssl_hs_is_proper_fragment(ssl) == 1);
 
                 /* We copy the message back into the input buffer
                  * after reassembly, so check that it's not too large.
                  * This is an implementation-specific limitation
                  * and not one from the standard, hence it is not
                  * checked in ssl_check_hs_header(). */
-                if( msg_len + 12 > MBEDTLS_SSL_IN_CONTENT_LEN )
-                {
+                if (msg_len + 12 > MBEDTLS_SSL_IN_CONTENT_LEN) {
                     /* Ignore message */
                     goto exit;
                 }
 
                 /* Check if we have enough space to buffer the message. */
-                if( hs->buffering.total_bytes_buffered >
-                    MBEDTLS_SSL_DTLS_MAX_BUFFERING )
-                {
-                    MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-                    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+                if (hs->buffering.total_bytes_buffered >
+                    MBEDTLS_SSL_DTLS_MAX_BUFFERING) {
+                    MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+                    return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
                 }
 
-                reassembly_buf_sz = ssl_get_reassembly_buffer_size( msg_len,
-                                                       hs_buf->is_fragmented );
+                reassembly_buf_sz = ssl_get_reassembly_buffer_size(msg_len,
+                                                                   hs_buf->is_fragmented);
 
-                if( reassembly_buf_sz > ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
-                                          hs->buffering.total_bytes_buffered ) )
-                {
-                    if( recv_msg_seq_offset > 0 )
-                    {
+                if (reassembly_buf_sz > (MBEDTLS_SSL_DTLS_MAX_BUFFERING -
+                                         hs->buffering.total_bytes_buffered)) {
+                    if (recv_msg_seq_offset > 0) {
                         /* If we can't buffer a future message because
                          * of space limitations -- ignore. */
-                        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future message of size %" MBEDTLS_PRINTF_SIZET
-                                                    " would exceed the compile-time limit %" MBEDTLS_PRINTF_SIZET
-                                                    " (already %" MBEDTLS_PRINTF_SIZET
-                                                    " bytes buffered) -- ignore\n",
-                             msg_len, (size_t) MBEDTLS_SSL_DTLS_MAX_BUFFERING,
-                             hs->buffering.total_bytes_buffered ) );
+                        MBEDTLS_SSL_DEBUG_MSG(2,
+                                              ("Buffering of future message of size %"
+                                               MBEDTLS_PRINTF_SIZET
+                                               " would exceed the compile-time limit %"
+                                               MBEDTLS_PRINTF_SIZET
+                                               " (already %" MBEDTLS_PRINTF_SIZET
+                                               " bytes buffered) -- ignore\n",
+                                               msg_len, (size_t) MBEDTLS_SSL_DTLS_MAX_BUFFERING,
+                                               hs->buffering.total_bytes_buffered));
                         goto exit;
-                    }
-                    else
-                    {
-                        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future message of size %" MBEDTLS_PRINTF_SIZET
-                                                    " would exceed the compile-time limit %" MBEDTLS_PRINTF_SIZET
-                                                    " (already %" MBEDTLS_PRINTF_SIZET
-                                                    " bytes buffered) -- attempt to make space by freeing buffered future messages\n",
-                             msg_len, (size_t) MBEDTLS_SSL_DTLS_MAX_BUFFERING,
-                             hs->buffering.total_bytes_buffered ) );
+                    } else {
+                        MBEDTLS_SSL_DEBUG_MSG(2,
+                                              ("Buffering of future message of size %"
+                                               MBEDTLS_PRINTF_SIZET
+                                               " would exceed the compile-time limit %"
+                                               MBEDTLS_PRINTF_SIZET
+                                               " (already %" MBEDTLS_PRINTF_SIZET
+                                               " bytes buffered) -- attempt to make space by freeing buffered future messages\n",
+                                               msg_len, (size_t) MBEDTLS_SSL_DTLS_MAX_BUFFERING,
+                                               hs->buffering.total_bytes_buffered));
                     }
 
-                    if( ssl_buffer_make_space( ssl, reassembly_buf_sz ) != 0 )
-                    {
-                        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reassembly of next message of size %" MBEDTLS_PRINTF_SIZET
-                                                    " (%" MBEDTLS_PRINTF_SIZET " with bitmap) would exceed"
-                                                    " the compile-time limit %" MBEDTLS_PRINTF_SIZET
-                                                    " (already %" MBEDTLS_PRINTF_SIZET
-                                                    " bytes buffered) -- fail\n",
-                             msg_len,
-                             reassembly_buf_sz,
-                             (size_t) MBEDTLS_SSL_DTLS_MAX_BUFFERING,
-                             hs->buffering.total_bytes_buffered ) );
+                    if (ssl_buffer_make_space(ssl, reassembly_buf_sz) != 0) {
+                        MBEDTLS_SSL_DEBUG_MSG(2,
+                                              ("Reassembly of next message of size %"
+                                               MBEDTLS_PRINTF_SIZET
+                                               " (%" MBEDTLS_PRINTF_SIZET
+                                               " with bitmap) would exceed"
+                                               " the compile-time limit %"
+                                               MBEDTLS_PRINTF_SIZET
+                                               " (already %" MBEDTLS_PRINTF_SIZET
+                                               " bytes buffered) -- fail\n",
+                                               msg_len,
+                                               reassembly_buf_sz,
+                                               (size_t) MBEDTLS_SSL_DTLS_MAX_BUFFERING,
+                                               hs->buffering.total_bytes_buffered));
                         ret = MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
                         goto exit;
                     }
                 }
 
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "initialize reassembly, total length = %" MBEDTLS_PRINTF_SIZET,
-                                            msg_len ) );
+                MBEDTLS_SSL_DEBUG_MSG(2,
+                                      ("initialize reassembly, total length = %"
+                                       MBEDTLS_PRINTF_SIZET,
+                                       msg_len));
 
-                hs_buf->data = mbedtls_calloc( 1, reassembly_buf_sz );
-                if( hs_buf->data == NULL )
-                {
+                hs_buf->data = mbedtls_calloc(1, reassembly_buf_sz);
+                if (hs_buf->data == NULL) {
                     ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
                     goto exit;
                 }
@@ -4362,27 +4222,23 @@
 
                 /* Prepare final header: copy msg_type, length and message_seq,
                  * then add standardised fragment_offset and fragment_length */
-                memcpy( hs_buf->data, ssl->in_msg, 6 );
-                memset( hs_buf->data + 6, 0, 3 );
-                memcpy( hs_buf->data + 9, hs_buf->data + 1, 3 );
+                memcpy(hs_buf->data, ssl->in_msg, 6);
+                memset(hs_buf->data + 6, 0, 3);
+                memcpy(hs_buf->data + 9, hs_buf->data + 1, 3);
 
                 hs_buf->is_valid = 1;
 
                 hs->buffering.total_bytes_buffered += reassembly_buf_sz;
-            }
-            else
-            {
+            } else {
                 /* Make sure msg_type and length are consistent */
-                if( memcmp( hs_buf->data, ssl->in_msg, 4 ) != 0 )
-                {
-                    MBEDTLS_SSL_DEBUG_MSG( 1, ( "Fragment header mismatch - ignore" ) );
+                if (memcmp(hs_buf->data, ssl->in_msg, 4) != 0) {
+                    MBEDTLS_SSL_DEBUG_MSG(1, ("Fragment header mismatch - ignore"));
                     /* Ignore */
                     goto exit;
                 }
             }
 
-            if( !hs_buf->is_complete )
-            {
+            if (!hs_buf->is_complete) {
                 size_t frag_len, frag_off;
                 unsigned char * const msg = hs_buf->data + 12;
 
@@ -4392,28 +4248,25 @@
 
                 /* Validation of header fields already done in
                  * mbedtls_ssl_prepare_handshake_record(). */
-                frag_off = ssl_get_hs_frag_off( ssl );
-                frag_len = ssl_get_hs_frag_len( ssl );
+                frag_off = ssl_get_hs_frag_off(ssl);
+                frag_len = ssl_get_hs_frag_len(ssl);
 
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "adding fragment, offset = %" MBEDTLS_PRINTF_SIZET
-                                            ", length = %" MBEDTLS_PRINTF_SIZET,
-                                            frag_off, frag_len ) );
-                memcpy( msg + frag_off, ssl->in_msg + 12, frag_len );
+                MBEDTLS_SSL_DEBUG_MSG(2, ("adding fragment, offset = %" MBEDTLS_PRINTF_SIZET
+                                          ", length = %" MBEDTLS_PRINTF_SIZET,
+                                          frag_off, frag_len));
+                memcpy(msg + frag_off, ssl->in_msg + 12, frag_len);
 
-                if( hs_buf->is_fragmented )
-                {
+                if (hs_buf->is_fragmented) {
                     unsigned char * const bitmask = msg + msg_len;
-                    ssl_bitmask_set( bitmask, frag_off, frag_len );
-                    hs_buf->is_complete = ( ssl_bitmask_check( bitmask,
-                                                               msg_len ) == 0 );
-                }
-                else
-                {
+                    ssl_bitmask_set(bitmask, frag_off, frag_len);
+                    hs_buf->is_complete = (ssl_bitmask_check(bitmask,
+                                                             msg_len) == 0);
+                } else {
                     hs_buf->is_complete = 1;
                 }
 
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "message %scomplete",
-                                   hs_buf->is_complete ? "" : "not yet " ) );
+                MBEDTLS_SSL_DEBUG_MSG(2, ("message %scomplete",
+                                          hs_buf->is_complete ? "" : "not yet "));
             }
 
             break;
@@ -4426,13 +4279,13 @@
 
 exit:
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_buffer_message" ) );
-    return( ret );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= ssl_buffer_message"));
+    return ret;
 }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_consume_current_message( mbedtls_ssl_context *ssl )
+static int ssl_consume_current_message(mbedtls_ssl_context *ssl)
 {
     /*
      * Consume last content-layer message and potentially
@@ -4457,15 +4310,13 @@
      */
 
     /* Case (1): Handshake messages */
-    if( ssl->in_hslen != 0 )
-    {
+    if (ssl->in_hslen != 0) {
         /* Hard assertion to be sure that no application data
          * is in flight, as corrupting ssl->in_msglen during
          * ssl->in_offt != NULL is fatal. */
-        if( ssl->in_offt != NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        if (ssl->in_offt != NULL) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
 
         /*
@@ -4489,68 +4340,64 @@
          *     bounds after handling a DTLS message with an unexpected
          *     sequence number, see mbedtls_ssl_prepare_handshake_record.
          */
-        if( ssl->in_hslen < ssl->in_msglen )
-        {
+        if (ssl->in_hslen < ssl->in_msglen) {
             ssl->in_msglen -= ssl->in_hslen;
-            memmove( ssl->in_msg, ssl->in_msg + ssl->in_hslen,
-                     ssl->in_msglen );
+            memmove(ssl->in_msg, ssl->in_msg + ssl->in_hslen,
+                    ssl->in_msglen);
 
-            MBEDTLS_SSL_DEBUG_BUF( 4, "remaining content in record",
-                                   ssl->in_msg, ssl->in_msglen );
-        }
-        else
-        {
+            MBEDTLS_SSL_DEBUG_BUF(4, "remaining content in record",
+                                  ssl->in_msg, ssl->in_msglen);
+        } else {
             ssl->in_msglen = 0;
         }
 
         ssl->in_hslen   = 0;
     }
     /* Case (4): Application data */
-    else if( ssl->in_offt != NULL )
-    {
-        return( 0 );
+    else if (ssl->in_offt != NULL) {
+        return 0;
     }
     /* Everything else (CCS & Alerts) */
-    else
-    {
+    else {
         ssl->in_msglen = 0;
     }
 
-    return( 0 );
+    return 0;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_record_is_in_progress( mbedtls_ssl_context *ssl )
+static int ssl_record_is_in_progress(mbedtls_ssl_context *ssl)
 {
-    if( ssl->in_msglen > 0 )
-        return( 1 );
+    if (ssl->in_msglen > 0) {
+        return 1;
+    }
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
 
-static void ssl_free_buffered_record( mbedtls_ssl_context *ssl )
+static void ssl_free_buffered_record(mbedtls_ssl_context *ssl)
 {
     mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-    if( hs == NULL )
+    if (hs == NULL) {
         return;
+    }
 
-    if( hs->buffering.future_record.data != NULL )
-    {
+    if (hs->buffering.future_record.data != NULL) {
         hs->buffering.total_bytes_buffered -=
             hs->buffering.future_record.len;
 
-        mbedtls_free( hs->buffering.future_record.data );
+        mbedtls_free(hs->buffering.future_record.data);
         hs->buffering.future_record.data = NULL;
     }
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_load_buffered_record( mbedtls_ssl_context *ssl )
+static int ssl_load_buffered_record(mbedtls_ssl_context *ssl)
 {
     mbedtls_ssl_handshake_params * const hs = ssl->handshake;
-    unsigned char * rec;
+    unsigned char *rec;
     size_t rec_len;
     unsigned rec_epoch;
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
@@ -4558,88 +4405,92 @@
 #else
     size_t in_buf_len = MBEDTLS_SSL_IN_BUFFER_LEN;
 #endif
-    if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        return( 0 );
+    if (ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        return 0;
+    }
 
-    if( hs == NULL )
-        return( 0 );
+    if (hs == NULL) {
+        return 0;
+    }
 
     rec       = hs->buffering.future_record.data;
     rec_len   = hs->buffering.future_record.len;
     rec_epoch = hs->buffering.future_record.epoch;
 
-    if( rec == NULL )
-        return( 0 );
+    if (rec == NULL) {
+        return 0;
+    }
 
     /* Only consider loading future records if the
      * input buffer is empty. */
-    if( ssl_next_record_is_in_datagram( ssl ) == 1 )
-        return( 0 );
+    if (ssl_next_record_is_in_datagram(ssl) == 1) {
+        return 0;
+    }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_load_buffered_record" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> ssl_load_buffered_record"));
 
-    if( rec_epoch != ssl->in_epoch )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffered record not from current epoch." ) );
+    if (rec_epoch != ssl->in_epoch) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("Buffered record not from current epoch."));
         goto exit;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "Found buffered record from current epoch - load" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("Found buffered record from current epoch - load"));
 
     /* Double-check that the record is not too large */
-    if( rec_len > in_buf_len - (size_t)( ssl->in_hdr - ssl->in_buf ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    if (rec_len > in_buf_len - (size_t) (ssl->in_hdr - ssl->in_buf)) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-    memcpy( ssl->in_hdr, rec, rec_len );
+    memcpy(ssl->in_hdr, rec, rec_len);
     ssl->in_left = rec_len;
     ssl->next_record_offset = 0;
 
-    ssl_free_buffered_record( ssl );
+    ssl_free_buffered_record(ssl);
 
 exit:
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_load_buffered_record" ) );
-    return( 0 );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= ssl_load_buffered_record"));
+    return 0;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_buffer_future_record( mbedtls_ssl_context *ssl,
-                                     mbedtls_record const *rec )
+static int ssl_buffer_future_record(mbedtls_ssl_context *ssl,
+                                    mbedtls_record const *rec)
 {
     mbedtls_ssl_handshake_params * const hs = ssl->handshake;
 
     /* Don't buffer future records outside handshakes. */
-    if( hs == NULL )
-        return( 0 );
+    if (hs == NULL) {
+        return 0;
+    }
 
     /* Only buffer handshake records (we are only interested
      * in Finished messages). */
-    if( rec->type != MBEDTLS_SSL_MSG_HANDSHAKE )
-        return( 0 );
+    if (rec->type != MBEDTLS_SSL_MSG_HANDSHAKE) {
+        return 0;
+    }
 
     /* Don't buffer more than one future epoch record. */
-    if( hs->buffering.future_record.data != NULL )
-        return( 0 );
+    if (hs->buffering.future_record.data != NULL) {
+        return 0;
+    }
 
     /* Don't buffer record if there's not enough buffering space remaining. */
-    if( rec->buf_len > ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
-                         hs->buffering.total_bytes_buffered ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future epoch record of size %" MBEDTLS_PRINTF_SIZET
-                                    " would exceed the compile-time limit %" MBEDTLS_PRINTF_SIZET
-                                    " (already %" MBEDTLS_PRINTF_SIZET
-                                    " bytes buffered) -- ignore\n",
-                        rec->buf_len, (size_t) MBEDTLS_SSL_DTLS_MAX_BUFFERING,
-                        hs->buffering.total_bytes_buffered ) );
-        return( 0 );
+    if (rec->buf_len > (MBEDTLS_SSL_DTLS_MAX_BUFFERING -
+                        hs->buffering.total_bytes_buffered)) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("Buffering of future epoch record of size %" MBEDTLS_PRINTF_SIZET
+                                  " would exceed the compile-time limit %" MBEDTLS_PRINTF_SIZET
+                                  " (already %" MBEDTLS_PRINTF_SIZET
+                                  " bytes buffered) -- ignore\n",
+                                  rec->buf_len, (size_t) MBEDTLS_SSL_DTLS_MAX_BUFFERING,
+                                  hs->buffering.total_bytes_buffered));
+        return 0;
     }
 
     /* Buffer record */
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffer record from epoch %u",
-                                ssl->in_epoch + 1U ) );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "Buffered record", rec->buf, rec->buf_len );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("Buffer record from epoch %u",
+                              ssl->in_epoch + 1U));
+    MBEDTLS_SSL_DEBUG_BUF(3, "Buffered record", rec->buf, rec->buf_len);
 
     /* ssl_parse_record_header() only considers records
      * of the next epoch as candidates for buffering. */
@@ -4647,24 +4498,23 @@
     hs->buffering.future_record.len   = rec->buf_len;
 
     hs->buffering.future_record.data =
-        mbedtls_calloc( 1, hs->buffering.future_record.len );
-    if( hs->buffering.future_record.data == NULL )
-    {
+        mbedtls_calloc(1, hs->buffering.future_record.len);
+    if (hs->buffering.future_record.data == NULL) {
         /* If we run out of RAM trying to buffer a
          * record from the next epoch, just ignore. */
-        return( 0 );
+        return 0;
     }
 
-    memcpy( hs->buffering.future_record.data, rec->buf, rec->buf_len );
+    memcpy(hs->buffering.future_record.data, rec->buf, rec->buf_len);
 
     hs->buffering.total_bytes_buffered += rec->buf_len;
-    return( 0 );
+    return 0;
 }
 
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_get_next_record( mbedtls_ssl_context *ssl )
+static int ssl_get_next_record(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_record rec;
@@ -4676,44 +4526,41 @@
      * the length of the buffered record, so that
      * the calls to ssl_fetch_input() below will
      * essentially be no-ops. */
-    ret = ssl_load_buffered_record( ssl );
-    if( ret != 0 )
-        return( ret );
+    ret = ssl_load_buffered_record(ssl);
+    if (ret != 0) {
+        return ret;
+    }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
     /* Ensure that we have enough space available for the default form
      * of TLS / DTLS record headers (5 Bytes for TLS, 13 Bytes for DTLS,
      * with no space for CIDs counted in). */
-    ret = mbedtls_ssl_fetch_input( ssl, mbedtls_ssl_in_hdr_len( ssl ) );
-    if( ret != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
-        return( ret );
+    ret = mbedtls_ssl_fetch_input(ssl, mbedtls_ssl_in_hdr_len(ssl));
+    if (ret != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_fetch_input", ret);
+        return ret;
     }
 
-    ret = ssl_parse_record_header( ssl, ssl->in_hdr, ssl->in_left, &rec );
-    if( ret != 0 )
-    {
+    ret = ssl_parse_record_header(ssl, ssl->in_hdr, ssl->in_left, &rec);
+    if (ret != 0) {
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        {
-            if( ret == MBEDTLS_ERR_SSL_EARLY_MESSAGE )
-            {
-                ret = ssl_buffer_future_record( ssl, &rec );
-                if( ret != 0 )
-                    return( ret );
+        if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+            if (ret == MBEDTLS_ERR_SSL_EARLY_MESSAGE) {
+                ret = ssl_buffer_future_record(ssl, &rec);
+                if (ret != 0) {
+                    return ret;
+                }
 
                 /* Fall through to handling of unexpected records */
                 ret = MBEDTLS_ERR_SSL_UNEXPECTED_RECORD;
             }
 
-            if( ret == MBEDTLS_ERR_SSL_UNEXPECTED_RECORD )
-            {
+            if (ret == MBEDTLS_ERR_SSL_UNEXPECTED_RECORD) {
 #if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
                 /* Reset in pointers to default state for TLS/DTLS records,
                  * assuming no CID and no offset between record content and
                  * record plaintext. */
-                mbedtls_ssl_update_in_pointers( ssl );
+                mbedtls_ssl_update_in_pointers(ssl);
 
                 /* Setup internal message pointers from record structure. */
                 ssl->in_msgtype = rec.type;
@@ -4723,59 +4570,53 @@
                 ssl->in_iv  = ssl->in_msg = ssl->in_len + 2;
                 ssl->in_msglen = rec.data_len;
 
-                ret = ssl_check_client_reconnect( ssl );
-                MBEDTLS_SSL_DEBUG_RET( 2, "ssl_check_client_reconnect", ret );
-                if( ret != 0 )
-                    return( ret );
+                ret = ssl_check_client_reconnect(ssl);
+                MBEDTLS_SSL_DEBUG_RET(2, "ssl_check_client_reconnect", ret);
+                if (ret != 0) {
+                    return ret;
+                }
 #endif
 
                 /* Skip unexpected record (but not whole datagram) */
                 ssl->next_record_offset = rec.buf_len;
 
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding unexpected record "
-                                            "(header)" ) );
-            }
-            else
-            {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("discarding unexpected record "
+                                          "(header)"));
+            } else {
                 /* Skip invalid record and the rest of the datagram */
                 ssl->next_record_offset = 0;
                 ssl->in_left = 0;
 
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding invalid record "
-                                            "(header)" ) );
+                MBEDTLS_SSL_DEBUG_MSG(1, ("discarding invalid record "
+                                          "(header)"));
             }
 
             /* Get next record */
-            return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING );
-        }
-        else
+            return MBEDTLS_ERR_SSL_CONTINUE_PROCESSING;
+        } else
 #endif
         {
-            return( ret );
+            return ret;
         }
     }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         /* Remember offset of next record within datagram. */
         ssl->next_record_offset = rec.buf_len;
-        if( ssl->next_record_offset < ssl->in_left )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "more than one record within datagram" ) );
+        if (ssl->next_record_offset < ssl->in_left) {
+            MBEDTLS_SSL_DEBUG_MSG(3, ("more than one record within datagram"));
         }
-    }
-    else
+    } else
 #endif
     {
         /*
          * Fetch record contents from underlying transport.
          */
-        ret = mbedtls_ssl_fetch_input( ssl, rec.buf_len );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
-            return( ret );
+        ret = mbedtls_ssl_fetch_input(ssl, rec.buf_len);
+        if (ret != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_fetch_input", ret);
+            return ret;
         }
 
         ssl->in_left = 0;
@@ -4785,36 +4626,30 @@
      * Decrypt record contents.
      */
 
-    if( ( ret = ssl_prepare_record_content( ssl, &rec ) ) != 0 )
-    {
+    if ((ret = ssl_prepare_record_content(ssl, &rec)) != 0) {
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        {
+        if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
             /* Silently discard invalid records */
-            if( ret == MBEDTLS_ERR_SSL_INVALID_MAC )
-            {
+            if (ret == MBEDTLS_ERR_SSL_INVALID_MAC) {
                 /* Except when waiting for Finished as a bad mac here
                  * probably means something went wrong in the handshake
                  * (eg wrong psk used, mitm downgrade attempt, etc.) */
-                if( ssl->state == MBEDTLS_SSL_CLIENT_FINISHED ||
-                    ssl->state == MBEDTLS_SSL_SERVER_FINISHED )
-                {
+                if (ssl->state == MBEDTLS_SSL_CLIENT_FINISHED ||
+                    ssl->state == MBEDTLS_SSL_SERVER_FINISHED) {
 #if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES)
-                    if( ret == MBEDTLS_ERR_SSL_INVALID_MAC )
-                    {
-                        mbedtls_ssl_send_alert_message( ssl,
-                                MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC );
+                    if (ret == MBEDTLS_ERR_SSL_INVALID_MAC) {
+                        mbedtls_ssl_send_alert_message(ssl,
+                                                       MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                                       MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC);
                     }
 #endif
-                    return( ret );
+                    return ret;
                 }
 
-                if( ssl->conf->badmac_limit != 0 &&
-                    ++ssl->badmac_seen >= ssl->conf->badmac_limit )
-                {
-                    MBEDTLS_SSL_DEBUG_MSG( 1, ( "too many records with bad MAC" ) );
-                    return( MBEDTLS_ERR_SSL_INVALID_MAC );
+                if (ssl->conf->badmac_limit != 0 &&
+                    ++ssl->badmac_seen >= ssl->conf->badmac_limit) {
+                    MBEDTLS_SSL_DEBUG_MSG(1, ("too many records with bad MAC"));
+                    return MBEDTLS_ERR_SSL_INVALID_MAC;
                 }
 
                 /* As above, invalid records cause
@@ -4823,25 +4658,23 @@
                 ssl->next_record_offset = 0;
                 ssl->in_left = 0;
 
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding invalid record (mac)" ) );
-                return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING );
+                MBEDTLS_SSL_DEBUG_MSG(1, ("discarding invalid record (mac)"));
+                return MBEDTLS_ERR_SSL_CONTINUE_PROCESSING;
             }
 
-            return( ret );
-        }
-        else
+            return ret;
+        } else
 #endif
         {
             /* Error out (and send alert) on invalid records */
 #if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES)
-            if( ret == MBEDTLS_ERR_SSL_INVALID_MAC )
-            {
-                mbedtls_ssl_send_alert_message( ssl,
-                        MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                        MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC );
+            if (ret == MBEDTLS_ERR_SSL_INVALID_MAC) {
+                mbedtls_ssl_send_alert_message(ssl,
+                                               MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                               MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC);
             }
 #endif
-            return( ret );
+            return ret;
         }
     }
 
@@ -4849,7 +4682,7 @@
     /* Reset in pointers to default state for TLS/DTLS records,
      * assuming no CID and no offset between record content and
      * record plaintext. */
-    mbedtls_ssl_update_in_pointers( ssl );
+    mbedtls_ssl_update_in_pointers(ssl);
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
     ssl->in_len = ssl->in_cid + rec.cid_len;
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
@@ -4865,113 +4698,100 @@
     ssl->in_hdr[0] = rec.type;
     ssl->in_msg    = rec.buf + rec.data_offset;
     ssl->in_msglen = rec.data_len;
-    MBEDTLS_PUT_UINT16_BE( rec.data_len, ssl->in_len, 0 );
+    MBEDTLS_PUT_UINT16_BE(rec.data_len, ssl->in_len, 0);
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_handle_message_type( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_handle_message_type(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
     /*
      * Handle particular types of records
      */
-    if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        if( ( ret = mbedtls_ssl_prepare_handshake_record( ssl ) ) != 0 )
-        {
-            return( ret );
+    if (ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE) {
+        if ((ret = mbedtls_ssl_prepare_handshake_record(ssl)) != 0) {
+            return ret;
         }
     }
 
-    if( ssl->in_msgtype == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
-    {
-        if( ssl->in_msglen != 1 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid CCS message, len: %" MBEDTLS_PRINTF_SIZET,
-                           ssl->in_msglen ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+    if (ssl->in_msgtype == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC) {
+        if (ssl->in_msglen != 1) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("invalid CCS message, len: %" MBEDTLS_PRINTF_SIZET,
+                                      ssl->in_msglen));
+            return MBEDTLS_ERR_SSL_INVALID_RECORD;
         }
 
-        if( ssl->in_msg[0] != 1 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid CCS message, content: %02x",
-                                        ssl->in_msg[0] ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+        if (ssl->in_msg[0] != 1) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("invalid CCS message, content: %02x",
+                                      ssl->in_msg[0]));
+            return MBEDTLS_ERR_SSL_INVALID_RECORD;
         }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
             ssl->state != MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC    &&
-            ssl->state != MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC )
-        {
-            if( ssl->handshake == NULL )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "dropping ChangeCipherSpec outside handshake" ) );
-                return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD );
+            ssl->state != MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC) {
+            if (ssl->handshake == NULL) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("dropping ChangeCipherSpec outside handshake"));
+                return MBEDTLS_ERR_SSL_UNEXPECTED_RECORD;
             }
 
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "received out-of-order ChangeCipherSpec - remember" ) );
-            return( MBEDTLS_ERR_SSL_EARLY_MESSAGE );
+            MBEDTLS_SSL_DEBUG_MSG(1, ("received out-of-order ChangeCipherSpec - remember"));
+            return MBEDTLS_ERR_SSL_EARLY_MESSAGE;
         }
 #endif
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
-        if( ssl->tls_version == MBEDTLS_SSL_VERSION_TLS1_3 )
-        {
+        if (ssl->tls_version == MBEDTLS_SSL_VERSION_TLS1_3) {
 #if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
-            MBEDTLS_SSL_DEBUG_MSG( 1,
-                ( "Ignore ChangeCipherSpec in TLS 1.3 compatibility mode" ) );
-            return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING );
+            MBEDTLS_SSL_DEBUG_MSG(1,
+                                  ("Ignore ChangeCipherSpec in TLS 1.3 compatibility mode"));
+            return MBEDTLS_ERR_SSL_CONTINUE_PROCESSING;
 #else
-            MBEDTLS_SSL_DEBUG_MSG( 1,
-                ( "ChangeCipherSpec invalid in TLS 1.3 without compatibility mode" ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+            MBEDTLS_SSL_DEBUG_MSG(1,
+                                  ("ChangeCipherSpec invalid in TLS 1.3 without compatibility mode"));
+            return MBEDTLS_ERR_SSL_INVALID_RECORD;
 #endif /* MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE */
         }
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
     }
 
-    if( ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT )
-    {
-        if( ssl->in_msglen != 2 )
-        {
+    if (ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT) {
+        if (ssl->in_msglen != 2) {
             /* Note: Standard allows for more than one 2 byte alert
                to be packed in a single message, but Mbed TLS doesn't
                currently support this. */
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid alert message, len: %" MBEDTLS_PRINTF_SIZET,
-                           ssl->in_msglen ) );
-            return( MBEDTLS_ERR_SSL_INVALID_RECORD );
+            MBEDTLS_SSL_DEBUG_MSG(1, ("invalid alert message, len: %" MBEDTLS_PRINTF_SIZET,
+                                      ssl->in_msglen));
+            return MBEDTLS_ERR_SSL_INVALID_RECORD;
         }
 
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "got an alert message, type: [%u:%u]",
-                       ssl->in_msg[0], ssl->in_msg[1] ) );
+        MBEDTLS_SSL_DEBUG_MSG(2, ("got an alert message, type: [%u:%u]",
+                                  ssl->in_msg[0], ssl->in_msg[1]));
 
         /*
          * Ignore non-fatal alerts, except close_notify and no_renegotiation
          */
-        if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_FATAL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "is a fatal alert message (msg %d)",
-                           ssl->in_msg[1] ) );
-            return( MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE );
+        if (ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_FATAL) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("is a fatal alert message (msg %d)",
+                                      ssl->in_msg[1]));
+            return MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE;
         }
 
-        if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING &&
-            ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a close notify message" ) );
-            return( MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY );
+        if (ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING &&
+            ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("is a close notify message"));
+            return MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY;
         }
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION_ENABLED)
-        if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING &&
-            ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a no renegotiation alert" ) );
+        if (ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING &&
+            ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("is a no renegotiation alert"));
             /* Will be handled when trying to parse ServerHello */
-            return( 0 );
+            return 0;
         }
 #endif
         /* Silently ignore: fetch new message */
@@ -4979,75 +4799,73 @@
     }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         /* Drop unexpected ApplicationData records,
          * except at the beginning of renegotiations */
-        if( ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA &&
-            mbedtls_ssl_is_handshake_over( ssl ) == 0
+        if (ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA &&
+            mbedtls_ssl_is_handshake_over(ssl) == 0
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-            && ! ( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
-                   ssl->state == MBEDTLS_SSL_SERVER_HELLO )
+            && !(ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
+                 ssl->state == MBEDTLS_SSL_SERVER_HELLO)
 #endif
-            )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "dropping unexpected ApplicationData" ) );
-            return( MBEDTLS_ERR_SSL_NON_FATAL );
+            ) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("dropping unexpected ApplicationData"));
+            return MBEDTLS_ERR_SSL_NON_FATAL;
         }
 
-        if( ssl->handshake != NULL &&
-            mbedtls_ssl_is_handshake_over( ssl ) == 1 )
-        {
-            mbedtls_ssl_handshake_wrapup_free_hs_transform( ssl );
+        if (ssl->handshake != NULL &&
+            mbedtls_ssl_is_handshake_over(ssl) == 1) {
+            mbedtls_ssl_handshake_wrapup_free_hs_transform(ssl);
         }
     }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_send_fatal_handshake_failure( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_send_fatal_handshake_failure(mbedtls_ssl_context *ssl)
 {
-    return( mbedtls_ssl_send_alert_message( ssl,
-                  MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                  MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ) );
+    return mbedtls_ssl_send_alert_message(ssl,
+                                          MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                          MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE);
 }
 
-int mbedtls_ssl_send_alert_message( mbedtls_ssl_context *ssl,
-                            unsigned char level,
-                            unsigned char message )
+int mbedtls_ssl_send_alert_message(mbedtls_ssl_context *ssl,
+                                   unsigned char level,
+                                   unsigned char message)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl == NULL || ssl->conf == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    if( ssl->out_left != 0 )
-        return( mbedtls_ssl_flush_output( ssl ) );
+    if (ssl->out_left != 0) {
+        return mbedtls_ssl_flush_output(ssl);
+    }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> send alert message" ) );
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "send alert level=%u message=%u", level, message ));
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> send alert message"));
+    MBEDTLS_SSL_DEBUG_MSG(3, ("send alert level=%u message=%u", level, message));
 
     ssl->out_msgtype = MBEDTLS_SSL_MSG_ALERT;
     ssl->out_msglen = 2;
     ssl->out_msg[0] = level;
     ssl->out_msg[1] = message;
 
-    if( ( ret = mbedtls_ssl_write_record( ssl, SSL_FORCE_FLUSH ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret );
-        return( ret );
+    if ((ret = mbedtls_ssl_write_record(ssl, SSL_FORCE_FLUSH)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_write_record", ret);
+        return ret;
     }
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= send alert message" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= send alert message"));
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_write_change_cipher_spec( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_write_change_cipher_spec(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write change cipher spec" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write change cipher spec"));
 
     ssl->out_msgtype = MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC;
     ssl->out_msglen  = 1;
@@ -5055,35 +4873,32 @@
 
     ssl->state++;
 
-    if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
-        return( ret );
+    if ((ret = mbedtls_ssl_write_handshake_msg(ssl)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_write_handshake_msg", ret);
+        return ret;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write change cipher spec" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write change cipher spec"));
 
-    return( 0 );
+    return 0;
 }
 
-int mbedtls_ssl_parse_change_cipher_spec( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_parse_change_cipher_spec(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse change cipher spec" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse change cipher spec"));
 
-    if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-        return( ret );
+    if ((ret = mbedtls_ssl_read_record(ssl, 1)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_read_record", ret);
+        return ret;
     }
 
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad change cipher spec message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+    if (ssl->in_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad change cipher spec message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE);
+        return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
     }
 
     /* CCS records are only accepted if they have length 1 and content '1',
@@ -5093,37 +4908,34 @@
      * Switch to our negotiated transform and session parameters for inbound
      * data.
      */
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "switching to new transform spec for inbound data" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("switching to new transform spec for inbound data"));
     ssl->transform_in = ssl->transform_negotiate;
     ssl->session_in = ssl->session_negotiate;
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-        mbedtls_ssl_dtls_replay_reset( ssl );
+        mbedtls_ssl_dtls_replay_reset(ssl);
 #endif
 
         /* Increment epoch */
-        if( ++ssl->in_epoch == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS epoch would wrap" ) );
+        if (++ssl->in_epoch == 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("DTLS epoch would wrap"));
             /* This is highly unlikely to happen for legitimate reasons, so
                treat it as an attack and don't send an alert. */
-            return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING );
+            return MBEDTLS_ERR_SSL_COUNTER_WRAPPING;
         }
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
-    memset( ssl->in_ctr, 0, MBEDTLS_SSL_SEQUENCE_NUMBER_LEN );
+    memset(ssl->in_ctr, 0, MBEDTLS_SSL_SEQUENCE_NUMBER_LEN);
 
-    mbedtls_ssl_update_in_pointers( ssl );
+    mbedtls_ssl_update_in_pointers(ssl);
 
     ssl->state++;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse change cipher spec" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= parse change cipher spec"));
 
-    return( 0 );
+    return 0;
 }
 
 /* Once ssl->out_hdr as the address of the beginning of the
@@ -5135,29 +4947,28 @@
  */
 
 static size_t ssl_transform_get_explicit_iv_len(
-                        mbedtls_ssl_transform const *transform )
+    mbedtls_ssl_transform const *transform)
 {
-    return( transform->ivlen - transform->fixed_ivlen );
+    return transform->ivlen - transform->fixed_ivlen;
 }
 
-void mbedtls_ssl_update_out_pointers( mbedtls_ssl_context *ssl,
-                                      mbedtls_ssl_transform *transform )
+void mbedtls_ssl_update_out_pointers(mbedtls_ssl_context *ssl,
+                                     mbedtls_ssl_transform *transform)
 {
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         ssl->out_ctr = ssl->out_hdr +  3;
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
         ssl->out_cid = ssl->out_ctr + MBEDTLS_SSL_SEQUENCE_NUMBER_LEN;
         ssl->out_len = ssl->out_cid;
-        if( transform != NULL )
+        if (transform != NULL) {
             ssl->out_len += transform->out_cid_len;
+        }
 #else /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
         ssl->out_len = ssl->out_ctr + MBEDTLS_SSL_SEQUENCE_NUMBER_LEN;
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
         ssl->out_iv  = ssl->out_len + 2;
-    }
-    else
+    } else
 #endif
     {
         ssl->out_len = ssl->out_hdr + 3;
@@ -5169,8 +4980,9 @@
 
     ssl->out_msg = ssl->out_iv;
     /* Adjust out_msg to make space for explicit IV, if used. */
-    if( transform != NULL )
-        ssl->out_msg += ssl_transform_get_explicit_iv_len( transform );
+    if (transform != NULL) {
+        ssl->out_msg += ssl_transform_get_explicit_iv_len(transform);
+    }
 }
 
 /* Once ssl->in_hdr as the address of the beginning of the
@@ -5181,7 +4993,7 @@
  *       and the caller has to make sure there's space for this.
  */
 
-void mbedtls_ssl_update_in_pointers( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_update_in_pointers(mbedtls_ssl_context *ssl)
 {
     /* This function sets the pointers to match the case
      * of unprotected TLS/DTLS records, with both  ssl->in_iv
@@ -5194,8 +5006,7 @@
      */
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         /* This sets the header pointers to match records
          * without CID. When we receive a record containing
          * a CID, the fields are shifted accordingly in
@@ -5208,8 +5019,7 @@
         ssl->in_len = ssl->in_ctr + MBEDTLS_SSL_SEQUENCE_NUMBER_LEN;
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
         ssl->in_iv  = ssl->in_len + 2;
-    }
-    else
+    } else
 #endif
     {
         ssl->in_ctr = ssl->in_hdr - MBEDTLS_SSL_SEQUENCE_NUMBER_LEN;
@@ -5228,16 +5038,14 @@
  * Setup an SSL context
  */
 
-void mbedtls_ssl_reset_in_out_pointers( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_reset_in_out_pointers(mbedtls_ssl_context *ssl)
 {
     /* Set the incoming and outgoing record pointers. */
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         ssl->out_hdr = ssl->out_buf;
         ssl->in_hdr  = ssl->in_buf;
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
     {
         ssl->out_ctr = ssl->out_buf;
@@ -5246,29 +5054,28 @@
     }
 
     /* Derive other internal pointers. */
-    mbedtls_ssl_update_out_pointers( ssl, NULL /* no transform enabled */ );
-    mbedtls_ssl_update_in_pointers ( ssl );
+    mbedtls_ssl_update_out_pointers(ssl, NULL /* no transform enabled */);
+    mbedtls_ssl_update_in_pointers(ssl);
 }
 
 /*
  * SSL get accessors
  */
-size_t mbedtls_ssl_get_bytes_avail( const mbedtls_ssl_context *ssl )
+size_t mbedtls_ssl_get_bytes_avail(const mbedtls_ssl_context *ssl)
 {
-    return( ssl->in_offt == NULL ? 0 : ssl->in_msglen );
+    return ssl->in_offt == NULL ? 0 : ssl->in_msglen;
 }
 
-int mbedtls_ssl_check_pending( const mbedtls_ssl_context *ssl )
+int mbedtls_ssl_check_pending(const mbedtls_ssl_context *ssl)
 {
     /*
      * Case A: We're currently holding back
      * a message for further processing.
      */
 
-    if( ssl->keep_current_message == 1 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: record held back for processing" ) );
-        return( 1 );
+    if (ssl->keep_current_message == 1) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("ssl_check_pending: record held back for processing"));
+        return 1;
     }
 
     /*
@@ -5276,11 +5083,10 @@
      */
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->in_left > ssl->next_record_offset )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: more records within current datagram" ) );
-        return( 1 );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        ssl->in_left > ssl->next_record_offset) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("ssl_check_pending: more records within current datagram"));
+        return 1;
     }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
@@ -5288,19 +5094,18 @@
      * Case C: A handshake message is being processed.
      */
 
-    if( ssl->in_hslen > 0 && ssl->in_hslen < ssl->in_msglen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: more handshake messages within current record" ) );
-        return( 1 );
+    if (ssl->in_hslen > 0 && ssl->in_hslen < ssl->in_msglen) {
+        MBEDTLS_SSL_DEBUG_MSG(3,
+                              ("ssl_check_pending: more handshake messages within current record"));
+        return 1;
     }
 
     /*
      * Case D: An application data message is being processed
      */
-    if( ssl->in_offt != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: application data record is being processed" ) );
-        return( 1 );
+    if (ssl->in_offt != NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("ssl_check_pending: application data record is being processed"));
+        return 1;
     }
 
     /*
@@ -5309,12 +5114,12 @@
      * we implement support for multiple alerts in single records.
      */
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: nothing pending" ) );
-    return( 0 );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("ssl_check_pending: nothing pending"));
+    return 0;
 }
 
 
-int mbedtls_ssl_get_record_expansion( const mbedtls_ssl_context *ssl )
+int mbedtls_ssl_get_record_expansion(const mbedtls_ssl_context *ssl)
 {
     size_t transform_expansion = 0;
     const mbedtls_ssl_transform *transform = ssl->transform_out;
@@ -5324,27 +5129,25 @@
     psa_key_type_t key_type;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-    size_t out_hdr_len = mbedtls_ssl_out_hdr_len( ssl );
+    size_t out_hdr_len = mbedtls_ssl_out_hdr_len(ssl);
 
-    if( transform == NULL )
-        return( (int) out_hdr_len );
+    if (transform == NULL) {
+        return (int) out_hdr_len;
+    }
 
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if ( transform->psa_alg == PSA_ALG_GCM ||
-         transform->psa_alg == PSA_ALG_CCM ||
-         transform->psa_alg == PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CCM, 8 ) ||
-         transform->psa_alg == PSA_ALG_CHACHA20_POLY1305 ||
-         transform->psa_alg == MBEDTLS_SSL_NULL_CIPHER )
-    {
+    if (transform->psa_alg == PSA_ALG_GCM ||
+        transform->psa_alg == PSA_ALG_CCM ||
+        transform->psa_alg == PSA_ALG_AEAD_WITH_SHORTENED_TAG(PSA_ALG_CCM, 8) ||
+        transform->psa_alg == PSA_ALG_CHACHA20_POLY1305 ||
+        transform->psa_alg == MBEDTLS_SSL_NULL_CIPHER) {
         transform_expansion = transform->minlen;
-    }
-    else if ( transform->psa_alg == PSA_ALG_CBC_NO_PADDING )
-    {
-        (void) psa_get_key_attributes( transform->psa_key_enc, &attr );
-        key_type = psa_get_key_type( &attr );
+    } else if (transform->psa_alg == PSA_ALG_CBC_NO_PADDING) {
+        (void) psa_get_key_attributes(transform->psa_key_enc, &attr);
+        key_type = psa_get_key_type(&attr);
 
-        block_size = PSA_BLOCK_CIPHER_BLOCK_LENGTH( key_type );
+        block_size = PSA_BLOCK_CIPHER_BLOCK_LENGTH(key_type);
 
         /* Expansion due to the addition of the MAC. */
         transform_expansion += transform->maclen;
@@ -5359,15 +5162,13 @@
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
         transform_expansion += block_size;
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Unsupported psa_alg spotted in mbedtls_ssl_get_record_expansion()" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    } else {
+        MBEDTLS_SSL_DEBUG_MSG(1,
+                              ("Unsupported psa_alg spotted in mbedtls_ssl_get_record_expansion()"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 #else
-    switch( mbedtls_cipher_get_cipher_mode( &transform->cipher_ctx_enc ) )
-    {
+    switch (mbedtls_cipher_get_cipher_mode(&transform->cipher_ctx_enc)) {
         case MBEDTLS_MODE_GCM:
         case MBEDTLS_MODE_CCM:
         case MBEDTLS_MODE_CHACHAPOLY:
@@ -5378,7 +5179,7 @@
         case MBEDTLS_MODE_CBC:
 
             block_size = mbedtls_cipher_get_block_size(
-                &transform->cipher_ctx_enc );
+                &transform->cipher_ctx_enc);
 
             /* Expansion due to the addition of the MAC. */
             transform_expansion += transform->maclen;
@@ -5397,17 +5198,18 @@
             break;
 
         default:
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+            MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
-    if( transform->out_cid_len != 0 )
+    if (transform->out_cid_len != 0) {
         transform_expansion += MBEDTLS_SSL_MAX_CID_EXPANSION;
+    }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
-    return( (int)( out_hdr_len + transform_expansion ) );
+    return (int) (out_hdr_len + transform_expansion);
 }
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
@@ -5415,33 +5217,31 @@
  * Check record counters and renegotiate if they're above the limit.
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_check_ctr_renegotiate( mbedtls_ssl_context *ssl )
+static int ssl_check_ctr_renegotiate(mbedtls_ssl_context *ssl)
 {
-    size_t ep_len = mbedtls_ssl_ep_len( ssl );
+    size_t ep_len = mbedtls_ssl_ep_len(ssl);
     int in_ctr_cmp;
     int out_ctr_cmp;
 
-    if( mbedtls_ssl_is_handshake_over( ssl ) == 0 ||
+    if (mbedtls_ssl_is_handshake_over(ssl) == 0 ||
         ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING ||
-        ssl->conf->disable_renegotiation == MBEDTLS_SSL_RENEGOTIATION_DISABLED )
-    {
-        return( 0 );
+        ssl->conf->disable_renegotiation == MBEDTLS_SSL_RENEGOTIATION_DISABLED) {
+        return 0;
     }
 
-    in_ctr_cmp = memcmp( ssl->in_ctr + ep_len,
+    in_ctr_cmp = memcmp(ssl->in_ctr + ep_len,
+                        &ssl->conf->renego_period[ep_len],
+                        MBEDTLS_SSL_SEQUENCE_NUMBER_LEN - ep_len);
+    out_ctr_cmp = memcmp(&ssl->cur_out_ctr[ep_len],
                          &ssl->conf->renego_period[ep_len],
-                         MBEDTLS_SSL_SEQUENCE_NUMBER_LEN - ep_len );
-    out_ctr_cmp = memcmp( &ssl->cur_out_ctr[ep_len],
-                          &ssl->conf->renego_period[ep_len],
-                          sizeof( ssl->cur_out_ctr ) - ep_len );
+                         sizeof(ssl->cur_out_ctr) - ep_len);
 
-    if( in_ctr_cmp <= 0 && out_ctr_cmp <= 0 )
-    {
-        return( 0 );
+    if (in_ctr_cmp <= 0 && out_ctr_cmp <= 0) {
+        return 0;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 1, ( "record counter limit reached: renegotiate" ) );
-    return( mbedtls_ssl_renegotiate( ssl ) );
+    MBEDTLS_SSL_DEBUG_MSG(1, ("record counter limit reached: renegotiate"));
+    return mbedtls_ssl_renegotiate(ssl);
 }
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
 
@@ -5449,42 +5249,41 @@
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls13_check_new_session_ticket( mbedtls_ssl_context *ssl )
+static int ssl_tls13_check_new_session_ticket(mbedtls_ssl_context *ssl)
 {
 
-    if( ( ssl->in_hslen == mbedtls_ssl_hs_hdr_len( ssl ) ) ||
-        ( ssl->in_msg[0] != MBEDTLS_SSL_HS_NEW_SESSION_TICKET ) )
-    {
-        return( 0 );
+    if ((ssl->in_hslen == mbedtls_ssl_hs_hdr_len(ssl)) ||
+        (ssl->in_msg[0] != MBEDTLS_SSL_HS_NEW_SESSION_TICKET)) {
+        return 0;
     }
 
     ssl->keep_current_message = 1;
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "NewSessionTicket received" ) );
-    mbedtls_ssl_handshake_set_state( ssl,
-                                     MBEDTLS_SSL_TLS1_3_NEW_SESSION_TICKET );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("NewSessionTicket received"));
+    mbedtls_ssl_handshake_set_state(ssl,
+                                    MBEDTLS_SSL_TLS1_3_NEW_SESSION_TICKET);
 
-    return( MBEDTLS_ERR_SSL_WANT_READ );
+    return MBEDTLS_ERR_SSL_WANT_READ;
 }
 #endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls13_handle_hs_message_post_handshake( mbedtls_ssl_context *ssl )
+static int ssl_tls13_handle_hs_message_post_handshake(mbedtls_ssl_context *ssl)
 {
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "received post-handshake message" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("received post-handshake message"));
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-    {
-        int ret = ssl_tls13_check_new_session_ticket( ssl );
-        if( ret != 0 )
-            return( ret );
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) {
+        int ret = ssl_tls13_check_new_session_ticket(ssl);
+        if (ret != 0) {
+            return ret;
+        }
     }
 #endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
 
     /* Fail in all other cases. */
-    return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+    return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
 }
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
 
@@ -5499,7 +5298,7 @@
  * TLS 1.3 in the future without bloating the logic of mbedtls_ssl_read().
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls12_handle_hs_message_post_handshake( mbedtls_ssl_context *ssl )
+static int ssl_tls12_handle_hs_message_post_handshake(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
@@ -5510,135 +5309,125 @@
      */
 
 #if defined(MBEDTLS_SSL_CLI_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
-        ( ssl->in_msg[0] != MBEDTLS_SSL_HS_HELLO_REQUEST ||
-          ssl->in_hslen  != mbedtls_ssl_hs_hdr_len( ssl ) ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake received (not HelloRequest)" ) );
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
+        (ssl->in_msg[0] != MBEDTLS_SSL_HS_HELLO_REQUEST ||
+         ssl->in_hslen  != mbedtls_ssl_hs_hdr_len(ssl))) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("handshake received (not HelloRequest)"));
 
         /* With DTLS, drop the packet (probably from last handshake) */
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        {
-            return( 0 );
+        if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+            return 0;
         }
 #endif
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+        return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
     }
 #endif /* MBEDTLS_SSL_CLI_C */
 
 #if defined(MBEDTLS_SSL_SRV_C)
-    if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
-        ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_HELLO )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake received (not ClientHello)" ) );
+    if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
+        ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_HELLO) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("handshake received (not ClientHello)"));
 
         /* With DTLS, drop the packet (probably from last handshake) */
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        {
-            return( 0 );
+        if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+            return 0;
         }
 #endif
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+        return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
     }
 #endif /* MBEDTLS_SSL_SRV_C */
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
     /* Determine whether renegotiation attempt should be accepted */
-    if( ! ( ssl->conf->disable_renegotiation == MBEDTLS_SSL_RENEGOTIATION_DISABLED ||
-            ( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
-              ssl->conf->allow_legacy_renegotiation ==
-              MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION ) ) )
-    {
+    if (!(ssl->conf->disable_renegotiation == MBEDTLS_SSL_RENEGOTIATION_DISABLED ||
+          (ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
+           ssl->conf->allow_legacy_renegotiation ==
+           MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION))) {
         /*
          * Accept renegotiation request
          */
 
         /* DTLS clients need to know renego is server-initiated */
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-            ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
-        {
+        if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+            ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT) {
             ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_PENDING;
         }
 #endif
-        ret = mbedtls_ssl_start_renegotiation( ssl );
-        if( ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO &&
-            ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_start_renegotiation",
-                                   ret );
-            return( ret );
+        ret = mbedtls_ssl_start_renegotiation(ssl);
+        if (ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO &&
+            ret != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_start_renegotiation",
+                                  ret);
+            return ret;
         }
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
     {
         /*
          * Refuse renegotiation
          */
 
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "refusing renegotiation, sending alert" ) );
+        MBEDTLS_SSL_DEBUG_MSG(3, ("refusing renegotiation, sending alert"));
 
-        if( ( ret = mbedtls_ssl_send_alert_message( ssl,
-                         MBEDTLS_SSL_ALERT_LEVEL_WARNING,
-                         MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION ) ) != 0 )
-        {
-            return( ret );
+        if ((ret = mbedtls_ssl_send_alert_message(ssl,
+                                                  MBEDTLS_SSL_ALERT_LEVEL_WARNING,
+                                                  MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION)) != 0) {
+            return ret;
         }
     }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_handle_hs_message_post_handshake( mbedtls_ssl_context *ssl )
+static int ssl_handle_hs_message_post_handshake(mbedtls_ssl_context *ssl)
 {
     /* Check protocol version and dispatch accordingly. */
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
-    if( ssl->tls_version == MBEDTLS_SSL_VERSION_TLS1_3 )
-    {
-        return( ssl_tls13_handle_hs_message_post_handshake( ssl ) );
+    if (ssl->tls_version == MBEDTLS_SSL_VERSION_TLS1_3) {
+        return ssl_tls13_handle_hs_message_post_handshake(ssl);
     }
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-    if( ssl->tls_version <= MBEDTLS_SSL_VERSION_TLS1_2 )
-    {
-        return( ssl_tls12_handle_hs_message_post_handshake( ssl ) );
+    if (ssl->tls_version <= MBEDTLS_SSL_VERSION_TLS1_2) {
+        return ssl_tls12_handle_hs_message_post_handshake(ssl);
     }
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
     /* Should never happen */
-    return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
 }
 
 /*
  * Receive application data decrypted from the SSL layer
  */
-int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len )
+int mbedtls_ssl_read(mbedtls_ssl_context *ssl, unsigned char *buf, size_t len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t n;
 
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl == NULL || ssl->conf == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> read" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> read"));
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-            return( ret );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        if ((ret = mbedtls_ssl_flush_output(ssl)) != 0) {
+            return ret;
+        }
 
-        if( ssl->handshake != NULL &&
-            ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING )
-        {
-            if( ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
-                return( ret );
+        if (ssl->handshake != NULL &&
+            ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING) {
+            if ((ret = mbedtls_ssl_flight_transmit(ssl)) != 0) {
+                return ret;
+            }
         }
     }
 #endif
@@ -5656,69 +5445,61 @@
      */
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    ret = ssl_check_ctr_renegotiate( ssl );
-    if( ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO &&
-        ret != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "ssl_check_ctr_renegotiate", ret );
-        return( ret );
+    ret = ssl_check_ctr_renegotiate(ssl);
+    if (ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO &&
+        ret != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "ssl_check_ctr_renegotiate", ret);
+        return ret;
     }
 #endif
 
-    if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-    {
-        ret = mbedtls_ssl_handshake( ssl );
-        if( ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO &&
-            ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret );
-            return( ret );
+    if (ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) {
+        ret = mbedtls_ssl_handshake(ssl);
+        if (ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO &&
+            ret != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_handshake", ret);
+            return ret;
         }
     }
 
     /* Loop as long as no application data record is available */
-    while( ssl->in_offt == NULL )
-    {
+    while (ssl->in_offt == NULL) {
         /* Start timer if not already running */
-        if( ssl->f_get_timer != NULL &&
-            ssl->f_get_timer( ssl->p_timer ) == -1 )
-        {
-            mbedtls_ssl_set_timer( ssl, ssl->conf->read_timeout );
+        if (ssl->f_get_timer != NULL &&
+            ssl->f_get_timer(ssl->p_timer) == -1) {
+            mbedtls_ssl_set_timer(ssl, ssl->conf->read_timeout);
         }
 
-        if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-        {
-            if( ret == MBEDTLS_ERR_SSL_CONN_EOF )
-                return( 0 );
+        if ((ret = mbedtls_ssl_read_record(ssl, 1)) != 0) {
+            if (ret == MBEDTLS_ERR_SSL_CONN_EOF) {
+                return 0;
+            }
 
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-            return( ret );
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_read_record", ret);
+            return ret;
         }
 
-        if( ssl->in_msglen  == 0 &&
-            ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA )
-        {
+        if (ssl->in_msglen  == 0 &&
+            ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA) {
             /*
              * OpenSSL sends empty messages to randomize the IV
              */
-            if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
-            {
-                if( ret == MBEDTLS_ERR_SSL_CONN_EOF )
-                    return( 0 );
+            if ((ret = mbedtls_ssl_read_record(ssl, 1)) != 0) {
+                if (ret == MBEDTLS_ERR_SSL_CONN_EOF) {
+                    return 0;
+                }
 
-                MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
-                return( ret );
+                MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_read_record", ret);
+                return ret;
             }
         }
 
-        if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE )
-        {
-            ret = ssl_handle_hs_message_post_handshake( ssl );
-            if( ret != 0)
-            {
-                MBEDTLS_SSL_DEBUG_RET( 1, "ssl_handle_hs_message_post_handshake",
-                                          ret );
-                return( ret );
+        if (ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE) {
+            ret = ssl_handle_hs_message_post_handshake(ssl);
+            if (ret != 0) {
+                MBEDTLS_SSL_DEBUG_RET(1, "ssl_handle_hs_message_post_handshake",
+                                      ret);
+                return ret;
             }
 
             /* At this point, we don't know whether the renegotiation triggered
@@ -5745,84 +5526,75 @@
             continue;
         }
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-        else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING )
-        {
-            if( ssl->conf->renego_max_records >= 0 )
-            {
-                if( ++ssl->renego_records_seen > ssl->conf->renego_max_records )
-                {
-                    MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation requested, "
-                                        "but not honored by client" ) );
-                    return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+        else if (ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING) {
+            if (ssl->conf->renego_max_records >= 0) {
+                if (++ssl->renego_records_seen > ssl->conf->renego_max_records) {
+                    MBEDTLS_SSL_DEBUG_MSG(1, ("renegotiation requested, "
+                                              "but not honored by client"));
+                    return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
                 }
             }
         }
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
 
         /* Fatal and closure alerts handled by mbedtls_ssl_read_record() */
-        if( ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "ignoring non-fatal non-closure alert" ) );
-            return( MBEDTLS_ERR_SSL_WANT_READ );
+        if (ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("ignoring non-fatal non-closure alert"));
+            return MBEDTLS_ERR_SSL_WANT_READ;
         }
 
-        if( ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad application data message" ) );
-            return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+        if (ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad application data message"));
+            return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
         }
 
         ssl->in_offt = ssl->in_msg;
 
         /* We're going to return something now, cancel timer,
          * except if handshake (renegotiation) is in progress */
-        if( mbedtls_ssl_is_handshake_over( ssl ) == 1 )
-            mbedtls_ssl_set_timer( ssl, 0 );
+        if (mbedtls_ssl_is_handshake_over(ssl) == 1) {
+            mbedtls_ssl_set_timer(ssl, 0);
+        }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
         /* If we requested renego but received AppData, resend HelloRequest.
          * Do it now, after setting in_offt, to avoid taking this branch
          * again if ssl_write_hello_request() returns WANT_WRITE */
 #if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION)
-        if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
-            ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING )
-        {
-            if( ( ret = mbedtls_ssl_resend_hello_request( ssl ) ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend_hello_request",
-                                       ret );
-                return( ret );
+        if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
+            ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING) {
+            if ((ret = mbedtls_ssl_resend_hello_request(ssl)) != 0) {
+                MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_resend_hello_request",
+                                      ret);
+                return ret;
             }
         }
 #endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
     }
 
-    n = ( len < ssl->in_msglen )
+    n = (len < ssl->in_msglen)
         ? len : ssl->in_msglen;
 
-    memcpy( buf, ssl->in_offt, n );
+    memcpy(buf, ssl->in_offt, n);
     ssl->in_msglen -= n;
 
     /* Zeroising the plaintext buffer to erase unused application data
        from the memory. */
-    mbedtls_platform_zeroize( ssl->in_offt, n );
+    mbedtls_platform_zeroize(ssl->in_offt, n);
 
-    if( ssl->in_msglen == 0 )
-    {
+    if (ssl->in_msglen == 0) {
         /* all bytes consumed */
         ssl->in_offt = NULL;
         ssl->keep_current_message = 0;
-    }
-    else
-    {
+    } else {
         /* more data available */
         ssl->in_offt += n;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= read" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= read"));
 
-    return( (int) n );
+    return (int) n;
 }
 
 /*
@@ -5838,50 +5610,42 @@
  * corresponding return code is 0 on success.
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_write_real( mbedtls_ssl_context *ssl,
-                           const unsigned char *buf, size_t len )
+static int ssl_write_real(mbedtls_ssl_context *ssl,
+                          const unsigned char *buf, size_t len)
 {
-    int ret = mbedtls_ssl_get_max_out_record_payload( ssl );
+    int ret = mbedtls_ssl_get_max_out_record_payload(ssl);
     const size_t max_len = (size_t) ret;
 
-    if( ret < 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_get_max_out_record_payload", ret );
-        return( ret );
+    if (ret < 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_get_max_out_record_payload", ret);
+        return ret;
     }
 
-    if( len > max_len )
-    {
+    if (len > max_len) {
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "fragment larger than the (negotiated) "
-                                "maximum fragment length: %" MBEDTLS_PRINTF_SIZET
-                                " > %" MBEDTLS_PRINTF_SIZET,
-                                len, max_len ) );
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-        }
-        else
+        if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("fragment larger than the (negotiated) "
+                                      "maximum fragment length: %" MBEDTLS_PRINTF_SIZET
+                                      " > %" MBEDTLS_PRINTF_SIZET,
+                                      len, max_len));
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        } else
 #endif
-            len = max_len;
+        len = max_len;
     }
 
-    if( ssl->out_left != 0 )
-    {
+    if (ssl->out_left != 0) {
         /*
          * The user has previously tried to send the data and
          * MBEDTLS_ERR_SSL_WANT_WRITE or the message was only partially
          * written. In this case, we expect the high-level write function
          * (e.g. mbedtls_ssl_write()) to be called with the same parameters
          */
-        if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flush_output", ret );
-            return( ret );
+        if ((ret = mbedtls_ssl_flush_output(ssl)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_flush_output", ret);
+            return ret;
         }
-    }
-    else
-    {
+    } else {
         /*
          * The user is trying to send a message the first time, so we need to
          * copy the data into the internal buffers and setup the data structure
@@ -5889,153 +5653,152 @@
          */
         ssl->out_msglen  = len;
         ssl->out_msgtype = MBEDTLS_SSL_MSG_APPLICATION_DATA;
-        memcpy( ssl->out_msg, buf, len );
+        memcpy(ssl->out_msg, buf, len);
 
-        if( ( ret = mbedtls_ssl_write_record( ssl, SSL_FORCE_FLUSH ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret );
-            return( ret );
+        if ((ret = mbedtls_ssl_write_record(ssl, SSL_FORCE_FLUSH)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_write_record", ret);
+            return ret;
         }
     }
 
-    return( (int) len );
+    return (int) len;
 }
 
 /*
  * Write application data (public-facing wrapper)
  */
-int mbedtls_ssl_write( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len )
+int mbedtls_ssl_write(mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write"));
 
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl == NULL || ssl->conf == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ( ret = ssl_check_ctr_renegotiate( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "ssl_check_ctr_renegotiate", ret );
-        return( ret );
+    if ((ret = ssl_check_ctr_renegotiate(ssl)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "ssl_check_ctr_renegotiate", ret);
+        return ret;
     }
 #endif
 
-    if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
-    {
-        if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret );
-            return( ret );
+    if (ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER) {
+        if ((ret = mbedtls_ssl_handshake(ssl)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_handshake", ret);
+            return ret;
         }
     }
 
-    ret = ssl_write_real( ssl, buf, len );
+    ret = ssl_write_real(ssl, buf, len);
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write"));
 
-    return( ret );
+    return ret;
 }
 
 /*
  * Notify the peer that the connection is being closed
  */
-int mbedtls_ssl_close_notify( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_close_notify(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if( ssl == NULL || ssl->conf == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl == NULL || ssl->conf == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write close notify" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write close notify"));
 
-    if( mbedtls_ssl_is_handshake_over( ssl ) == 1 )
-    {
-        if( ( ret = mbedtls_ssl_send_alert_message( ssl,
-                        MBEDTLS_SSL_ALERT_LEVEL_WARNING,
-                        MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_send_alert_message", ret );
-            return( ret );
+    if (mbedtls_ssl_is_handshake_over(ssl) == 1) {
+        if ((ret = mbedtls_ssl_send_alert_message(ssl,
+                                                  MBEDTLS_SSL_ALERT_LEVEL_WARNING,
+                                                  MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_send_alert_message", ret);
+            return ret;
         }
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write close notify" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write close notify"));
 
-    return( 0 );
+    return 0;
 }
 
-void mbedtls_ssl_transform_free( mbedtls_ssl_transform *transform )
+void mbedtls_ssl_transform_free(mbedtls_ssl_transform *transform)
 {
-    if( transform == NULL )
+    if (transform == NULL) {
         return;
+    }
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_destroy_key( transform->psa_key_enc );
-    psa_destroy_key( transform->psa_key_dec );
+    psa_destroy_key(transform->psa_key_enc);
+    psa_destroy_key(transform->psa_key_dec);
 #else
-    mbedtls_cipher_free( &transform->cipher_ctx_enc );
-    mbedtls_cipher_free( &transform->cipher_ctx_dec );
+    mbedtls_cipher_free(&transform->cipher_ctx_enc);
+    mbedtls_cipher_free(&transform->cipher_ctx_dec);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_MAC)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    psa_destroy_key( transform->psa_mac_enc );
-    psa_destroy_key( transform->psa_mac_dec );
+    psa_destroy_key(transform->psa_mac_enc);
+    psa_destroy_key(transform->psa_mac_dec);
 #else
-    mbedtls_md_free( &transform->md_ctx_enc );
-    mbedtls_md_free( &transform->md_ctx_dec );
+    mbedtls_md_free(&transform->md_ctx_enc);
+    mbedtls_md_free(&transform->md_ctx_dec);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 #endif
 
-    mbedtls_platform_zeroize( transform, sizeof( mbedtls_ssl_transform ) );
+    mbedtls_platform_zeroize(transform, sizeof(mbedtls_ssl_transform));
 }
 
-void mbedtls_ssl_set_inbound_transform( mbedtls_ssl_context *ssl,
-                                        mbedtls_ssl_transform *transform )
+void mbedtls_ssl_set_inbound_transform(mbedtls_ssl_context *ssl,
+                                       mbedtls_ssl_transform *transform)
 {
     ssl->transform_in = transform;
-    memset( ssl->in_ctr, 0, MBEDTLS_SSL_SEQUENCE_NUMBER_LEN );
+    memset(ssl->in_ctr, 0, MBEDTLS_SSL_SEQUENCE_NUMBER_LEN);
 }
 
-void mbedtls_ssl_set_outbound_transform( mbedtls_ssl_context *ssl,
-                                         mbedtls_ssl_transform *transform )
+void mbedtls_ssl_set_outbound_transform(mbedtls_ssl_context *ssl,
+                                        mbedtls_ssl_transform *transform)
 {
     ssl->transform_out = transform;
-    memset( ssl->cur_out_ctr, 0, sizeof( ssl->cur_out_ctr ) );
+    memset(ssl->cur_out_ctr, 0, sizeof(ssl->cur_out_ctr));
 }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
 
-void mbedtls_ssl_buffering_free( mbedtls_ssl_context *ssl )
+void mbedtls_ssl_buffering_free(mbedtls_ssl_context *ssl)
 {
     unsigned offset;
     mbedtls_ssl_handshake_params * const hs = ssl->handshake;
 
-    if( hs == NULL )
+    if (hs == NULL) {
         return;
+    }
 
-    ssl_free_buffered_record( ssl );
+    ssl_free_buffered_record(ssl);
 
-    for( offset = 0; offset < MBEDTLS_SSL_MAX_BUFFERED_HS; offset++ )
-        ssl_buffering_free_slot( ssl, offset );
+    for (offset = 0; offset < MBEDTLS_SSL_MAX_BUFFERED_HS; offset++) {
+        ssl_buffering_free_slot(ssl, offset);
+    }
 }
 
-static void ssl_buffering_free_slot( mbedtls_ssl_context *ssl,
-                                     uint8_t slot )
+static void ssl_buffering_free_slot(mbedtls_ssl_context *ssl,
+                                    uint8_t slot)
 {
     mbedtls_ssl_handshake_params * const hs = ssl->handshake;
     mbedtls_ssl_hs_buffer * const hs_buf = &hs->buffering.hs[slot];
 
-    if( slot >= MBEDTLS_SSL_MAX_BUFFERED_HS )
+    if (slot >= MBEDTLS_SSL_MAX_BUFFERED_HS) {
         return;
+    }
 
-    if( hs_buf->is_valid == 1 )
-    {
+    if (hs_buf->is_valid == 1) {
         hs->buffering.total_bytes_buffered -= hs_buf->data_len;
-        mbedtls_platform_zeroize( hs_buf->data, hs_buf->data_len );
-        mbedtls_free( hs_buf->data );
-        memset( hs_buf, 0, sizeof( mbedtls_ssl_hs_buffer ) );
+        mbedtls_platform_zeroize(hs_buf->data, hs_buf->data_len);
+        mbedtls_free(hs_buf->data);
+        memset(hs_buf, 0, sizeof(mbedtls_ssl_hs_buffer));
     }
 }
 
@@ -6050,27 +5813,29 @@
  * 1.x <-> 3.x+1    for x != 0 (DTLS 1.2 based on TLS 1.2)
  *                  DTLS 1.0 is stored as TLS 1.1 internally
  */
-void mbedtls_ssl_write_version( unsigned char version[2], int transport,
-                                mbedtls_ssl_protocol_version tls_version )
+void mbedtls_ssl_write_version(unsigned char version[2], int transport,
+                               mbedtls_ssl_protocol_version tls_version)
 {
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
+    if (transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         tls_version =
-          ~( tls_version - ( tls_version == 0x0302 ? 0x0202 : 0x0201 ) );
+            ~(tls_version - (tls_version == 0x0302 ? 0x0202 : 0x0201));
+    }
 #else
     ((void) transport);
 #endif
-    MBEDTLS_PUT_UINT16_BE( tls_version, version, 0 );
+    MBEDTLS_PUT_UINT16_BE(tls_version, version, 0);
 }
 
-uint16_t mbedtls_ssl_read_version( const unsigned char version[2],
-                                   int transport )
+uint16_t mbedtls_ssl_read_version(const unsigned char version[2],
+                                  int transport)
 {
-    uint16_t tls_version = MBEDTLS_GET_UINT16_BE( version, 0 );
+    uint16_t tls_version = MBEDTLS_GET_UINT16_BE(version, 0);
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
+    if (transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         tls_version =
-          ~( tls_version - ( tls_version == 0xfeff ? 0x0202 : 0x0201 ) );
+            ~(tls_version - (tls_version == 0xfeff ? 0x0202 : 0x0201));
+    }
 #else
     ((void) transport);
 #endif
@@ -6083,38 +5848,39 @@
  * !0,  if mbedtls_ssl_send_alert_message() returned in error, the error code it
  *      returned, ssl->alert_reason otherwise.
  */
-int mbedtls_ssl_handle_pending_alert( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_handle_pending_alert(mbedtls_ssl_context *ssl)
 {
     int ret;
 
     /* No pending alert, return success*/
-    if( ssl->send_alert == 0 )
-        return( 0 );
+    if (ssl->send_alert == 0) {
+        return 0;
+    }
 
-    ret = mbedtls_ssl_send_alert_message( ssl,
-                                MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                ssl->alert_type );
+    ret = mbedtls_ssl_send_alert_message(ssl,
+                                         MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                         ssl->alert_type);
 
     /* If mbedtls_ssl_send_alert_message() returned with MBEDTLS_ERR_SSL_WANT_WRITE,
      * do not clear the alert to be able to send it later.
      */
-    if( ret != MBEDTLS_ERR_SSL_WANT_WRITE )
-    {
+    if (ret != MBEDTLS_ERR_SSL_WANT_WRITE) {
         ssl->send_alert = 0;
     }
 
-    if( ret != 0 )
-        return( ret );
+    if (ret != 0) {
+        return ret;
+    }
 
-    return( ssl->alert_reason );
+    return ssl->alert_reason;
 }
 
 /*
  * Set pending fatal alert flag.
  */
-void mbedtls_ssl_pend_fatal_alert( mbedtls_ssl_context *ssl,
-                                   unsigned char alert_type,
-                                   int alert_reason )
+void mbedtls_ssl_pend_fatal_alert(mbedtls_ssl_context *ssl,
+                                  unsigned char alert_type,
+                                  int alert_reason)
 {
     ssl->send_alert = 1;
     ssl->alert_type = alert_type;