diff --git a/library/ssl_tls12_server.c b/library/ssl_tls12_server.c
index a28cd67..9298292 100644
--- a/library/ssl_tls12_server.c
+++ b/library/ssl_tls12_server.c
@@ -43,28 +43,30 @@
 #endif
 
 #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-int mbedtls_ssl_set_client_transport_id( mbedtls_ssl_context *ssl,
-                                 const unsigned char *info,
-                                 size_t ilen )
+int mbedtls_ssl_set_client_transport_id(mbedtls_ssl_context *ssl,
+                                        const unsigned char *info,
+                                        size_t ilen)
 {
-    if( ssl->conf->endpoint != MBEDTLS_SSL_IS_SERVER )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+    if (ssl->conf->endpoint != MBEDTLS_SSL_IS_SERVER) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
 
-    mbedtls_free( ssl->cli_id );
+    mbedtls_free(ssl->cli_id);
 
-    if( ( ssl->cli_id = mbedtls_calloc( 1, ilen ) ) == NULL )
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+    if ((ssl->cli_id = mbedtls_calloc(1, ilen)) == NULL) {
+        return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+    }
 
-    memcpy( ssl->cli_id, info, ilen );
+    memcpy(ssl->cli_id, info, ilen);
     ssl->cli_id_len = ilen;
 
-    return( 0 );
+    return 0;
 }
 
-void mbedtls_ssl_conf_dtls_cookies( mbedtls_ssl_config *conf,
-                           mbedtls_ssl_cookie_write_t *f_cookie_write,
-                           mbedtls_ssl_cookie_check_t *f_cookie_check,
-                           void *p_cookie )
+void mbedtls_ssl_conf_dtls_cookies(mbedtls_ssl_config *conf,
+                                   mbedtls_ssl_cookie_write_t *f_cookie_write,
+                                   mbedtls_ssl_cookie_check_t *f_cookie_check,
+                                   void *p_cookie)
 {
     conf->f_cookie_write = f_cookie_write;
     conf->f_cookie_check = f_cookie_check;
@@ -74,62 +76,62 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_conf_has_psk_or_cb( mbedtls_ssl_config const *conf )
+static int ssl_conf_has_psk_or_cb(mbedtls_ssl_config const *conf)
 {
-    if( conf->f_psk != NULL )
-        return( 1 );
+    if (conf->f_psk != NULL) {
+        return 1;
+    }
 
-    if( conf->psk_identity_len == 0 || conf->psk_identity == NULL )
-        return( 0 );
+    if (conf->psk_identity_len == 0 || conf->psk_identity == NULL) {
+        return 0;
+    }
 
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( ! mbedtls_svc_key_id_is_null( conf->psk_opaque ) )
-        return( 1 );
+    if (!mbedtls_svc_key_id_is_null(conf->psk_opaque)) {
+        return 1;
+    }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-    if( conf->psk != NULL && conf->psk_len != 0 )
-        return( 1 );
+    if (conf->psk != NULL && conf->psk_len != 0) {
+        return 1;
+    }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
-                                         const unsigned char *buf,
-                                         size_t len )
+static int ssl_parse_renegotiation_info(mbedtls_ssl_context *ssl,
+                                        const unsigned char *buf,
+                                        size_t len)
 {
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
-    {
+    if (ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE) {
         /* Check verify-data in constant-time. The length OTOH is no secret */
-        if( len    != 1 + ssl->verify_data_len ||
+        if (len    != 1 + ssl->verify_data_len ||
             buf[0] !=     ssl->verify_data_len ||
-            mbedtls_ct_memcmp( buf + 1, ssl->peer_verify_data,
-                          ssl->verify_data_len ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching renegotiation info" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-            return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
+            mbedtls_ct_memcmp(buf + 1, ssl->peer_verify_data,
+                              ssl->verify_data_len) != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("non-matching renegotiation info"));
+            mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                           MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE);
+            return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
         }
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
     {
-        if( len != 1 || buf[0] != 0x0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-zero length renegotiation info" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-            return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
+        if (len != 1 || buf[0] != 0x0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("non-zero length renegotiation info"));
+            mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                           MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE);
+            return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
         }
 
         ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION;
     }
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
@@ -174,63 +176,59 @@
  * DHE groups are not supported yet.
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_supported_groups_ext( mbedtls_ssl_context *ssl,
-                                           const unsigned char *buf,
-                                           size_t len )
+static int ssl_parse_supported_groups_ext(mbedtls_ssl_context *ssl,
+                                          const unsigned char *buf,
+                                          size_t len)
 {
     size_t list_size, our_size;
     const unsigned char *p;
     uint16_t *curves_tls_id;
 
-    if ( len < 2 ) {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (len < 2) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
-    list_size = ( ( buf[0] << 8 ) | ( buf[1] ) );
-    if( list_size + 2 != len ||
-        list_size % 2 != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    list_size = ((buf[0] << 8) | (buf[1]));
+    if (list_size + 2 != len ||
+        list_size % 2 != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
     /* Should never happen unless client duplicates the extension */
-    if( ssl->handshake->curves_tls_id != NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-        return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
+    if (ssl->handshake->curves_tls_id != NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER);
+        return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
     }
 
     /* Don't allow our peer to make us allocate too much memory,
      * and leave room for a final 0 */
     our_size = list_size / 2 + 1;
-    if( our_size > MBEDTLS_ECP_DP_MAX )
+    if (our_size > MBEDTLS_ECP_DP_MAX) {
         our_size = MBEDTLS_ECP_DP_MAX;
+    }
 
-    if( ( curves_tls_id = mbedtls_calloc( our_size,
-                                sizeof( *curves_tls_id ) ) ) == NULL )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
-        return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
+    if ((curves_tls_id = mbedtls_calloc(our_size,
+                                        sizeof(*curves_tls_id))) == NULL) {
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR);
+        return MBEDTLS_ERR_SSL_ALLOC_FAILED;
     }
 
     ssl->handshake->curves_tls_id = curves_tls_id;
 
     p = buf + 2;
-    while( list_size > 0 && our_size > 1 )
-    {
-        uint16_t curr_tls_id = MBEDTLS_GET_UINT16_BE( p, 0 );
+    while (list_size > 0 && our_size > 1) {
+        uint16_t curr_tls_id = MBEDTLS_GET_UINT16_BE(p, 0);
 
-        if( mbedtls_ssl_get_ecp_group_id_from_tls_id( curr_tls_id ) !=
-                                        MBEDTLS_ECP_DP_NONE )
-        {
+        if (mbedtls_ssl_get_ecp_group_id_from_tls_id(curr_tls_id) !=
+            MBEDTLS_ECP_DP_NONE) {
             *curves_tls_id++ = curr_tls_id;
             our_size--;
         }
@@ -239,296 +237,280 @@
         p += 2;
     }
 
-    return( 0 );
+    return 0;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_supported_point_formats( mbedtls_ssl_context *ssl,
-                                              const unsigned char *buf,
-                                              size_t len )
+static int ssl_parse_supported_point_formats(mbedtls_ssl_context *ssl,
+                                             const unsigned char *buf,
+                                             size_t len)
 {
     size_t list_size;
     const unsigned char *p;
 
-    if( len == 0 || (size_t)( buf[0] + 1 ) != len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (len == 0 || (size_t) (buf[0] + 1) != len) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
     list_size = buf[0];
 
     p = buf + 1;
-    while( list_size > 0 )
-    {
-        if( p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED ||
-            p[0] == MBEDTLS_ECP_PF_COMPRESSED )
-        {
+    while (list_size > 0) {
+        if (p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED ||
+            p[0] == MBEDTLS_ECP_PF_COMPRESSED) {
 #if !defined(MBEDTLS_USE_PSA_CRYPTO) &&                             \
-    ( defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) )
+            (defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C))
             ssl->handshake->ecdh_ctx.point_format = p[0];
 #endif /* !MBEDTLS_USE_PSA_CRYPTO &&
           ( MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ) */
 #if !defined(MBEDTLS_USE_PSA_CRYPTO) &&                             \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-            mbedtls_ecjpake_set_point_format( &ssl->handshake->ecjpake_ctx,
-                                              p[0] );
+            defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
+            mbedtls_ecjpake_set_point_format(&ssl->handshake->ecjpake_ctx,
+                                             p[0]);
 #endif /* !MBEDTLS_USE_PSA_CRYPTO && MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
-            MBEDTLS_SSL_DEBUG_MSG( 4, ( "point format selected: %d", p[0] ) );
-            return( 0 );
+            MBEDTLS_SSL_DEBUG_MSG(4, ("point format selected: %d", p[0]));
+            return 0;
         }
 
         list_size--;
         p++;
     }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
           MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl,
-                                   const unsigned char *buf,
-                                   size_t len)
+static int ssl_parse_ecjpake_kkpp(mbedtls_ssl_context *ssl,
+                                  const unsigned char *buf,
+                                  size_t len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( ssl->handshake->psa_pake_ctx_is_ok != 1 )
+    if (ssl->handshake->psa_pake_ctx_is_ok != 1)
 #else
-    if( mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 )
+    if (mbedtls_ecjpake_check(&ssl->handshake->ecjpake_ctx) != 0)
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
     {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip ecjpake kkpp extension" ) );
-        return( 0 );
+        MBEDTLS_SSL_DEBUG_MSG(3, ("skip ecjpake kkpp extension"));
+        return 0;
     }
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    if( ( ret = mbedtls_psa_ecjpake_read_round(
-                        &ssl->handshake->psa_pake_ctx, buf, len,
-                        MBEDTLS_ECJPAKE_ROUND_ONE ) ) != 0 )
-    {
-        psa_destroy_key( ssl->handshake->psa_pake_password );
-        psa_pake_abort( &ssl->handshake->psa_pake_ctx );
+    if ((ret = mbedtls_psa_ecjpake_read_round(
+             &ssl->handshake->psa_pake_ctx, buf, len,
+             MBEDTLS_ECJPAKE_ROUND_ONE)) != 0) {
+        psa_destroy_key(ssl->handshake->psa_pake_password);
+        psa_pake_abort(&ssl->handshake->psa_pake_ctx);
 
-        MBEDTLS_SSL_DEBUG_RET( 1, "psa_pake_input round one", ret );
+        MBEDTLS_SSL_DEBUG_RET(1, "psa_pake_input round one", ret);
         mbedtls_ssl_send_alert_message(
-                ssl,
-                MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
+            ssl,
+            MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+            MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE);
 
-        return( ret );
+        return ret;
     }
 #else
-    if( ( ret = mbedtls_ecjpake_read_round_one( &ssl->handshake->ecjpake_ctx,
-                                                buf, len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_one", ret );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-        return( ret );
+    if ((ret = mbedtls_ecjpake_read_round_one(&ssl->handshake->ecjpake_ctx,
+                                              buf, len)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ecjpake_read_round_one", ret);
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER);
+        return ret;
     }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     /* Only mark the extension as OK when we're sure it is */
     ssl->handshake->cli_exts |= MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK;
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
 
 #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl,
-                                              const unsigned char *buf,
-                                              size_t len )
+static int ssl_parse_max_fragment_length_ext(mbedtls_ssl_context *ssl,
+                                             const unsigned char *buf,
+                                             size_t len)
 {
-    if( len != 1 || buf[0] >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-        return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
+    if (len != 1 || buf[0] >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER);
+        return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
     }
 
     ssl->session_negotiate->mfl_code = buf[0];
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_cid_ext( mbedtls_ssl_context *ssl,
-                              const unsigned char *buf,
-                              size_t len )
+static int ssl_parse_cid_ext(mbedtls_ssl_context *ssl,
+                             const unsigned char *buf,
+                             size_t len)
 {
     size_t peer_cid_len;
 
     /* CID extension only makes sense in DTLS */
-    if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-        return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
+    if (ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER);
+        return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
     }
 
     /*
      *   struct {
      *      opaque cid<0..2^8-1>;
      *   } ConnectionId;
-    */
+     */
 
-    if( len < 1 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (len < 1) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
     peer_cid_len = *buf++;
     len--;
 
-    if( len != peer_cid_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (len != peer_cid_len) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
     /* Ignore CID if the user has disabled its use. */
-    if( ssl->negotiate_cid == MBEDTLS_SSL_CID_DISABLED )
-    {
+    if (ssl->negotiate_cid == MBEDTLS_SSL_CID_DISABLED) {
         /* Leave ssl->handshake->cid_in_use in its default
          * value of MBEDTLS_SSL_CID_DISABLED. */
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "Client sent CID extension, but CID disabled" ) );
-        return( 0 );
+        MBEDTLS_SSL_DEBUG_MSG(3, ("Client sent CID extension, but CID disabled"));
+        return 0;
     }
 
-    if( peer_cid_len > MBEDTLS_SSL_CID_OUT_LEN_MAX )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
-        return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
+    if (peer_cid_len > MBEDTLS_SSL_CID_OUT_LEN_MAX) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER);
+        return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
     }
 
     ssl->handshake->cid_in_use = MBEDTLS_SSL_CID_ENABLED;
     ssl->handshake->peer_cid_len = (uint8_t) peer_cid_len;
-    memcpy( ssl->handshake->peer_cid, buf, peer_cid_len );
+    memcpy(ssl->handshake->peer_cid, buf, peer_cid_len);
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "Use of CID extension negotiated" ) );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "Client CID", buf, peer_cid_len );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("Use of CID extension negotiated"));
+    MBEDTLS_SSL_DEBUG_BUF(3, "Client CID", buf, peer_cid_len);
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
-                                      const unsigned char *buf,
-                                      size_t len )
+static int ssl_parse_encrypt_then_mac_ext(mbedtls_ssl_context *ssl,
+                                          const unsigned char *buf,
+                                          size_t len)
 {
-    if( len != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (len != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
     ((void) buf);
 
-    if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED )
-    {
+    if (ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED) {
         ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED;
     }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
 
 #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
-                                      const unsigned char *buf,
-                                      size_t len )
+static int ssl_parse_extended_ms_ext(mbedtls_ssl_context *ssl,
+                                     const unsigned char *buf,
+                                     size_t len)
 {
-    if( len != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (len != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
     ((void) buf);
 
-    if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED )
-    {
+    if (ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED) {
         ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
     }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl,
-                                         unsigned char *buf,
-                                         size_t len )
+static int ssl_parse_session_ticket_ext(mbedtls_ssl_context *ssl,
+                                        unsigned char *buf,
+                                        size_t len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_ssl_session session;
 
-    mbedtls_ssl_session_init( &session );
+    mbedtls_ssl_session_init(&session);
 
-    if( ssl->conf->f_ticket_parse == NULL ||
-        ssl->conf->f_ticket_write == NULL )
-    {
-        return( 0 );
+    if (ssl->conf->f_ticket_parse == NULL ||
+        ssl->conf->f_ticket_write == NULL) {
+        return 0;
     }
 
     /* Remember the client asked us to send a new ticket */
     ssl->handshake->new_session_ticket = 1;
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket length: %" MBEDTLS_PRINTF_SIZET, len ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("ticket length: %" MBEDTLS_PRINTF_SIZET, len));
 
-    if( len == 0 )
-        return( 0 );
+    if (len == 0) {
+        return 0;
+    }
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket rejected: renegotiating" ) );
-        return( 0 );
+    if (ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("ticket rejected: renegotiating"));
+        return 0;
     }
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
 
     /*
      * Failures are ok: just ignore the ticket and proceed.
      */
-    if( ( ret = ssl->conf->f_ticket_parse( ssl->conf->p_ticket, &session,
-                                           buf, len ) ) != 0 )
-    {
-        mbedtls_ssl_session_free( &session );
+    if ((ret = ssl->conf->f_ticket_parse(ssl->conf->p_ticket, &session,
+                                         buf, len)) != 0) {
+        mbedtls_ssl_session_free(&session);
 
-        if( ret == MBEDTLS_ERR_SSL_INVALID_MAC )
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket is not authentic" ) );
-        else if( ret == MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED )
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket is expired" ) );
-        else
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_ticket_parse", ret );
+        if (ret == MBEDTLS_ERR_SSL_INVALID_MAC) {
+            MBEDTLS_SSL_DEBUG_MSG(3, ("ticket is not authentic"));
+        } else if (ret == MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED) {
+            MBEDTLS_SSL_DEBUG_MSG(3, ("ticket is expired"));
+        } else {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_ticket_parse", ret);
+        }
 
-        return( 0 );
+        return 0;
     }
 
     /*
@@ -536,44 +518,43 @@
      * inform them we're accepting the ticket  (RFC 5077 section 3.4)
      */
     session.id_len = ssl->session_negotiate->id_len;
-    memcpy( &session.id, ssl->session_negotiate->id, session.id_len );
+    memcpy(&session.id, ssl->session_negotiate->id, session.id_len);
 
-    mbedtls_ssl_session_free( ssl->session_negotiate );
-    memcpy( ssl->session_negotiate, &session, sizeof( mbedtls_ssl_session ) );
+    mbedtls_ssl_session_free(ssl->session_negotiate);
+    memcpy(ssl->session_negotiate, &session, sizeof(mbedtls_ssl_session));
 
     /* Zeroize instead of free as we copied the content */
-    mbedtls_platform_zeroize( &session, sizeof( mbedtls_ssl_session ) );
+    mbedtls_platform_zeroize(&session, sizeof(mbedtls_ssl_session));
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "session successfully restored from ticket" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("session successfully restored from ticket"));
 
     ssl->handshake->resume = 1;
 
     /* Don't send a new ticket after all, this one is OK */
     ssl->handshake->new_session_ticket = 0;
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
 
 #if defined(MBEDTLS_SSL_DTLS_SRTP)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_use_srtp_ext( mbedtls_ssl_context *ssl,
-                                   const unsigned char *buf,
-                                   size_t len )
+static int ssl_parse_use_srtp_ext(mbedtls_ssl_context *ssl,
+                                  const unsigned char *buf,
+                                  size_t len)
 {
     mbedtls_ssl_srtp_profile client_protection = MBEDTLS_TLS_SRTP_UNSET;
-    size_t i,j;
+    size_t i, j;
     size_t profile_length;
     uint16_t mki_length;
     /*! 2 bytes for profile length and 1 byte for mki len */
     const size_t size_of_lengths = 3;
 
     /* If use_srtp is not configured, just ignore the extension */
-    if( ( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM ) ||
-        ( ssl->conf->dtls_srtp_profile_list == NULL ) ||
-        ( ssl->conf->dtls_srtp_profile_list_len == 0 ) )
-    {
-        return( 0 );
+    if ((ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM) ||
+        (ssl->conf->dtls_srtp_profile_list == NULL) ||
+        (ssl->conf->dtls_srtp_profile_list_len == 0)) {
+        return 0;
     }
 
     /* RFC5764 section 4.1.1
@@ -593,86 +574,77 @@
      * Check here that we have at least 2 bytes of protection profiles length
      * and one of srtp_mki length
      */
-    if( len < size_of_lengths )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (len < size_of_lengths) {
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-   ssl->dtls_srtp_info.chosen_dtls_srtp_profile = MBEDTLS_TLS_SRTP_UNSET;
+    ssl->dtls_srtp_info.chosen_dtls_srtp_profile = MBEDTLS_TLS_SRTP_UNSET;
 
     /* first 2 bytes are protection profile length(in bytes) */
-    profile_length = ( buf[0] << 8 ) | buf[1];
+    profile_length = (buf[0] << 8) | buf[1];
     buf += 2;
 
     /* The profile length cannot be bigger than input buffer size - lengths fields */
-    if( profile_length > len - size_of_lengths ||
-        profile_length % 2 != 0 ) /* profiles are 2 bytes long, so the length must be even */
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (profile_length > len - size_of_lengths ||
+        profile_length % 2 != 0) { /* profiles are 2 bytes long, so the length must be even */
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
     /*
      * parse the extension list values are defined in
      * http://www.iana.org/assignments/srtp-protection/srtp-protection.xhtml
      */
-    for( j = 0; j < profile_length; j += 2 )
-    {
+    for (j = 0; j < profile_length; j += 2) {
         uint16_t protection_profile_value = buf[j] << 8 | buf[j + 1];
-        client_protection = mbedtls_ssl_check_srtp_profile_value( protection_profile_value );
+        client_protection = mbedtls_ssl_check_srtp_profile_value(protection_profile_value);
 
-        if( client_protection != MBEDTLS_TLS_SRTP_UNSET )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "found srtp profile: %s",
-                                    mbedtls_ssl_get_srtp_profile_as_string(
-                                            client_protection ) ) );
-        }
-        else
-        {
+        if (client_protection != MBEDTLS_TLS_SRTP_UNSET) {
+            MBEDTLS_SSL_DEBUG_MSG(3, ("found srtp profile: %s",
+                                      mbedtls_ssl_get_srtp_profile_as_string(
+                                          client_protection)));
+        } else {
             continue;
         }
         /* check if suggested profile is in our list */
-        for( i = 0; i < ssl->conf->dtls_srtp_profile_list_len; i++)
-        {
-            if( client_protection == ssl->conf->dtls_srtp_profile_list[i] )
-            {
+        for (i = 0; i < ssl->conf->dtls_srtp_profile_list_len; i++) {
+            if (client_protection == ssl->conf->dtls_srtp_profile_list[i]) {
                 ssl->dtls_srtp_info.chosen_dtls_srtp_profile = ssl->conf->dtls_srtp_profile_list[i];
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "selected srtp profile: %s",
-                                            mbedtls_ssl_get_srtp_profile_as_string(
-                                                    client_protection ) ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("selected srtp profile: %s",
+                                          mbedtls_ssl_get_srtp_profile_as_string(
+                                              client_protection)));
                 break;
             }
         }
-        if( ssl->dtls_srtp_info.chosen_dtls_srtp_profile != MBEDTLS_TLS_SRTP_UNSET )
+        if (ssl->dtls_srtp_info.chosen_dtls_srtp_profile != MBEDTLS_TLS_SRTP_UNSET) {
             break;
+        }
     }
     buf += profile_length; /* buf points to the mki length */
     mki_length = *buf;
     buf++;
 
-    if( mki_length > MBEDTLS_TLS_SRTP_MAX_MKI_LENGTH ||
-        mki_length + profile_length + size_of_lengths != len )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (mki_length > MBEDTLS_TLS_SRTP_MAX_MKI_LENGTH ||
+        mki_length + profile_length + size_of_lengths != len) {
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
     /* Parse the mki only if present and mki is supported locally */
-    if( ssl->conf->dtls_srtp_mki_support == MBEDTLS_SSL_DTLS_SRTP_MKI_SUPPORTED &&
-          mki_length > 0 )
-    {
+    if (ssl->conf->dtls_srtp_mki_support == MBEDTLS_SSL_DTLS_SRTP_MKI_SUPPORTED &&
+        mki_length > 0) {
         ssl->dtls_srtp_info.mki_len = mki_length;
 
-        memcpy( ssl->dtls_srtp_info.mki_value, buf, mki_length );
+        memcpy(ssl->dtls_srtp_info.mki_value, buf, mki_length);
 
-        MBEDTLS_SSL_DEBUG_BUF( 3, "using mki",  ssl->dtls_srtp_info.mki_value,
-                                                ssl->dtls_srtp_info.mki_len );
+        MBEDTLS_SSL_DEBUG_BUF(3, "using mki",  ssl->dtls_srtp_info.mki_value,
+                              ssl->dtls_srtp_info.mki_len);
     }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_DTLS_SRTP */
 
@@ -686,22 +658,22 @@
  */
 #if defined(MBEDTLS_ECDSA_C)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_check_key_curve( mbedtls_pk_context *pk,
-                                uint16_t *curves_tls_id )
+static int ssl_check_key_curve(mbedtls_pk_context *pk,
+                               uint16_t *curves_tls_id)
 {
     uint16_t *curr_tls_id = curves_tls_id;
-    mbedtls_ecp_group_id grp_id = mbedtls_pk_ec( *pk )->grp.id;
+    mbedtls_ecp_group_id grp_id = mbedtls_pk_ec(*pk)->grp.id;
     mbedtls_ecp_group_id curr_grp_id;
 
-    while( *curr_tls_id != 0 )
-    {
-        curr_grp_id = mbedtls_ssl_get_ecp_group_id_from_tls_id( *curr_tls_id );
-        if( curr_grp_id == grp_id )
-            return( 0 );
+    while (*curr_tls_id != 0) {
+        curr_grp_id = mbedtls_ssl_get_ecp_group_id_from_tls_id(*curr_tls_id);
+        if (curr_grp_id == grp_id) {
+            return 0;
+        }
         curr_tls_id++;
     }
 
-    return( -1 );
+    return -1;
 }
 #endif /* MBEDTLS_ECDSA_C */
 
@@ -710,68 +682,66 @@
  * return 0 on success and -1 on failure.
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_pick_cert( mbedtls_ssl_context *ssl,
-                          const mbedtls_ssl_ciphersuite_t * ciphersuite_info )
+static int ssl_pick_cert(mbedtls_ssl_context *ssl,
+                         const mbedtls_ssl_ciphersuite_t *ciphersuite_info)
 {
     mbedtls_ssl_key_cert *cur, *list;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     psa_algorithm_t pk_alg =
-        mbedtls_ssl_get_ciphersuite_sig_pk_psa_alg( ciphersuite_info );
+        mbedtls_ssl_get_ciphersuite_sig_pk_psa_alg(ciphersuite_info);
     psa_key_usage_t pk_usage =
-        mbedtls_ssl_get_ciphersuite_sig_pk_psa_usage( ciphersuite_info );
+        mbedtls_ssl_get_ciphersuite_sig_pk_psa_usage(ciphersuite_info);
 #else
     mbedtls_pk_type_t pk_alg =
-        mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info );
+        mbedtls_ssl_get_ciphersuite_sig_pk_alg(ciphersuite_info);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
     uint32_t flags;
 
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    if( ssl->handshake->sni_key_cert != NULL )
+    if (ssl->handshake->sni_key_cert != NULL) {
         list = ssl->handshake->sni_key_cert;
-    else
+    } else
 #endif
-        list = ssl->conf->key_cert;
+    list = ssl->conf->key_cert;
 
     int pk_alg_is_none = 0;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    pk_alg_is_none = ( pk_alg == PSA_ALG_NONE );
+    pk_alg_is_none = (pk_alg == PSA_ALG_NONE);
 #else
-    pk_alg_is_none = ( pk_alg == MBEDTLS_PK_NONE );
+    pk_alg_is_none = (pk_alg == MBEDTLS_PK_NONE);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( pk_alg_is_none )
-        return( 0 );
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite requires certificate" ) );
-
-    if( list == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "server has no certificate" ) );
-        return( -1 );
+    if (pk_alg_is_none) {
+        return 0;
     }
 
-    for( cur = list; cur != NULL; cur = cur->next )
-    {
+    MBEDTLS_SSL_DEBUG_MSG(3, ("ciphersuite requires certificate"));
+
+    if (list == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("server has no certificate"));
+        return -1;
+    }
+
+    for (cur = list; cur != NULL; cur = cur->next) {
         flags = 0;
-        MBEDTLS_SSL_DEBUG_CRT( 3, "candidate certificate chain, certificate",
-                          cur->cert );
+        MBEDTLS_SSL_DEBUG_CRT(3, "candidate certificate chain, certificate",
+                              cur->cert);
 
         int key_type_matches = 0;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-        key_type_matches = ( ( ssl->conf->f_async_sign_start != NULL ||
-                    ssl->conf->f_async_decrypt_start != NULL ||
-                    mbedtls_pk_can_do_ext( cur->key, pk_alg, pk_usage ) ) &&
-                mbedtls_pk_can_do_ext( &cur->cert->pk, pk_alg, pk_usage ) );
+        key_type_matches = ((ssl->conf->f_async_sign_start != NULL ||
+                             ssl->conf->f_async_decrypt_start != NULL ||
+                             mbedtls_pk_can_do_ext(cur->key, pk_alg, pk_usage)) &&
+                            mbedtls_pk_can_do_ext(&cur->cert->pk, pk_alg, pk_usage));
 #else
         key_type_matches = (
-                mbedtls_pk_can_do_ext( cur->key, pk_alg, pk_usage ) );
+            mbedtls_pk_can_do_ext(cur->key, pk_alg, pk_usage));
 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
 #else
-        key_type_matches = mbedtls_pk_can_do( &cur->cert->pk, pk_alg );
+        key_type_matches = mbedtls_pk_can_do(&cur->cert->pk, pk_alg);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-        if( !key_type_matches )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: key type" ) );
+        if (!key_type_matches) {
+            MBEDTLS_SSL_DEBUG_MSG(3, ("certificate mismatch: key type"));
             continue;
         }
 
@@ -783,20 +753,18 @@
          * different uses based on keyUsage, eg if they want to avoid signing
          * and decrypting with the same RSA key.
          */
-        if( mbedtls_ssl_check_cert_usage( cur->cert, ciphersuite_info,
-                                  MBEDTLS_SSL_IS_SERVER, &flags ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: "
-                                "(extended) key usage extension" ) );
+        if (mbedtls_ssl_check_cert_usage(cur->cert, ciphersuite_info,
+                                         MBEDTLS_SSL_IS_SERVER, &flags) != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(3, ("certificate mismatch: "
+                                      "(extended) key usage extension"));
             continue;
         }
 
 #if defined(MBEDTLS_ECDSA_C)
-        if( pk_alg == MBEDTLS_PK_ECDSA &&
-            ssl_check_key_curve( &cur->cert->pk,
-                            ssl->handshake->curves_tls_id ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: elliptic curve" ) );
+        if (pk_alg == MBEDTLS_PK_ECDSA &&
+            ssl_check_key_curve(&cur->cert->pk,
+                                ssl->handshake->curves_tls_id) != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(3, ("certificate mismatch: elliptic curve"));
             continue;
         }
 #endif
@@ -806,15 +774,14 @@
     }
 
     /* Do not update ssl->handshake->key_cert unless there is a match */
-    if( cur != NULL )
-    {
+    if (cur != NULL) {
         ssl->handshake->key_cert = cur;
-        MBEDTLS_SSL_DEBUG_CRT( 3, "selected certificate chain, certificate",
-                          ssl->handshake->key_cert->cert );
-        return( 0 );
+        MBEDTLS_SSL_DEBUG_CRT(3, "selected certificate chain, certificate",
+                              ssl->handshake->key_cert->cert);
+        return 0;
     }
 
-    return( -1 );
+    return -1;
 }
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
@@ -823,8 +790,8 @@
  * Sets ciphersuite_info only if the suite matches.
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_ciphersuite_match( mbedtls_ssl_context *ssl, int suite_id,
-                                  const mbedtls_ssl_ciphersuite_t **ciphersuite_info )
+static int ssl_ciphersuite_match(mbedtls_ssl_context *ssl, int suite_id,
+                                 const mbedtls_ssl_ciphersuite_t **ciphersuite_info)
 {
     const mbedtls_ssl_ciphersuite_t *suite_info;
 
@@ -832,53 +799,48 @@
     mbedtls_pk_type_t sig_type;
 #endif
 
-    suite_info = mbedtls_ssl_ciphersuite_from_id( suite_id );
-    if( suite_info == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    suite_info = mbedtls_ssl_ciphersuite_from_id(suite_id);
+    if (suite_info == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "trying ciphersuite: %#04x (%s)",
-                                (unsigned int) suite_id, suite_info->name ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("trying ciphersuite: %#04x (%s)",
+                              (unsigned int) suite_id, suite_info->name));
 
-    if( suite_info->min_tls_version > ssl->tls_version ||
-        suite_info->max_tls_version < ssl->tls_version )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: version" ) );
-        return( 0 );
+    if (suite_info->min_tls_version > ssl->tls_version ||
+        suite_info->max_tls_version < ssl->tls_version) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("ciphersuite mismatch: version"));
+        return 0;
     }
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE &&
-        ( ssl->handshake->cli_exts & MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK ) == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: ecjpake "
-                                    "not configured or ext missing" ) );
-        return( 0 );
+    if (suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE &&
+        (ssl->handshake->cli_exts & MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK) == 0) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("ciphersuite mismatch: ecjpake "
+                                  "not configured or ext missing"));
+        return 0;
     }
 #endif
 
 
 #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C)
-    if( mbedtls_ssl_ciphersuite_uses_ec( suite_info ) &&
-        ( ssl->handshake->curves_tls_id == NULL ||
-          ssl->handshake->curves_tls_id[0] == 0 ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: "
-                            "no common elliptic curve" ) );
-        return( 0 );
+    if (mbedtls_ssl_ciphersuite_uses_ec(suite_info) &&
+        (ssl->handshake->curves_tls_id == NULL ||
+         ssl->handshake->curves_tls_id[0] == 0)) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("ciphersuite mismatch: "
+                                  "no common elliptic curve"));
+        return 0;
     }
 #endif
 
 #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
     /* If the ciphersuite requires a pre-shared key and we don't
      * have one, skip it now rather than failing later */
-    if( mbedtls_ssl_ciphersuite_uses_psk( suite_info ) &&
-        ssl_conf_has_psk_or_cb( ssl->conf ) == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: no pre-shared key" ) );
-        return( 0 );
+    if (mbedtls_ssl_ciphersuite_uses_psk(suite_info) &&
+        ssl_conf_has_psk_or_cb(ssl->conf) == 0) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("ciphersuite mismatch: no pre-shared key"));
+        return 0;
     }
 #endif
 
@@ -890,38 +852,36 @@
      * - try the next ciphersuite if we don't
      * This must be done last since we modify the key_cert list.
      */
-    if( ssl_pick_cert( ssl, suite_info ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: "
-                            "no suitable certificate" ) );
-        return( 0 );
+    if (ssl_pick_cert(ssl, suite_info) != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("ciphersuite mismatch: "
+                                  "no suitable certificate"));
+        return 0;
     }
 #endif
 
 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
     /* If the ciphersuite requires signing, check whether
      * a suitable hash algorithm is present. */
-    sig_type = mbedtls_ssl_get_ciphersuite_sig_alg( suite_info );
-    if( sig_type != MBEDTLS_PK_NONE &&
+    sig_type = mbedtls_ssl_get_ciphersuite_sig_alg(suite_info);
+    if (sig_type != MBEDTLS_PK_NONE &&
         mbedtls_ssl_tls12_get_preferred_hash_for_sig_alg(
-            ssl, mbedtls_ssl_sig_from_pk_alg( sig_type ) ) == MBEDTLS_SSL_HASH_NONE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: no suitable hash algorithm "
-                                    "for signature algorithm %u", (unsigned) sig_type ) );
-        return( 0 );
+            ssl, mbedtls_ssl_sig_from_pk_alg(sig_type)) == MBEDTLS_SSL_HASH_NONE) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("ciphersuite mismatch: no suitable hash algorithm "
+                                  "for signature algorithm %u", (unsigned) sig_type));
+        return 0;
     }
 
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 
     *ciphersuite_info = suite_info;
-    return( 0 );
+    return 0;
 }
 
 /* This function doesn't alert on errors that happen early during
    ClientHello parsing because they might indicate that the client is
    not talking SSL/TLS at all and would not understand our alert. */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_client_hello( mbedtls_ssl_context *ssl )
+static int ssl_parse_client_hello(mbedtls_ssl_context *ssl)
 {
     int ret, got_common_suite;
     size_t i, j;
@@ -945,7 +905,7 @@
     int sig_hash_alg_ext_present = 0;
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client hello" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse client hello"));
 
     int renegotiating;
 
@@ -959,21 +919,19 @@
      */
     renegotiating = 0;
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    renegotiating = ( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE );
+    renegotiating = (ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE);
 #endif
-    if( !renegotiating )
-    {
-        if( ( ret = mbedtls_ssl_fetch_input( ssl, 5 ) ) != 0 )
-        {
+    if (!renegotiating) {
+        if ((ret = mbedtls_ssl_fetch_input(ssl, 5)) != 0) {
             /* No alert on a read error. */
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
-            return( ret );
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_fetch_input", ret);
+            return ret;
         }
     }
 
     buf = ssl->in_hdr;
 
-    MBEDTLS_SSL_DEBUG_BUF( 4, "record header", buf, mbedtls_ssl_in_hdr_len( ssl ) );
+    MBEDTLS_SSL_DEBUG_BUF(4, "record header", buf, mbedtls_ssl_in_hdr_len(ssl));
 
     /*
      * TLS Client Hello
@@ -984,93 +942,85 @@
      *     3  .   11  DTLS: epoch + record sequence number
      *     3  .   4   message length
      */
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, message type: %d",
-                   buf[0] ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("client hello, message type: %d",
+                              buf[0]));
 
-    if( buf[0] != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+    if (buf[0] != MBEDTLS_SSL_MSG_HANDSHAKE) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, message len.: %d",
-                   ( ssl->in_len[0] << 8 ) | ssl->in_len[1] ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("client hello, message len.: %d",
+                              (ssl->in_len[0] << 8) | ssl->in_len[1]));
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, protocol version: [%d:%d]",
-                   buf[1], buf[2] ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("client hello, protocol version: [%d:%d]",
+                              buf[1], buf[2]));
 
     /* For DTLS if this is the initial handshake, remember the client sequence
      * number to use it in our next message (RFC 6347 4.2.1) */
 #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_RENEGOTIATION)
         && ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE
 #endif
-        )
-    {
+        ) {
         /* Epoch should be 0 for initial handshakes */
-        if( ssl->in_ctr[0] != 0 || ssl->in_ctr[1] != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-            return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
+        if (ssl->in_ctr[0] != 0 || ssl->in_ctr[1] != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+            return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
         }
 
-        memcpy( &ssl->cur_out_ctr[2], ssl->in_ctr + 2,
-                sizeof( ssl->cur_out_ctr ) - 2 );
+        memcpy(&ssl->cur_out_ctr[2], ssl->in_ctr + 2,
+               sizeof(ssl->cur_out_ctr) - 2);
 
 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
-        if( mbedtls_ssl_dtls_replay_check( ssl ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "replayed record, discarding" ) );
+        if (mbedtls_ssl_dtls_replay_check(ssl) != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("replayed record, discarding"));
             ssl->next_record_offset = 0;
             ssl->in_left = 0;
             goto read_record_header;
         }
 
         /* No MAC to check yet, so we can update right now */
-        mbedtls_ssl_dtls_replay_update( ssl );
+        mbedtls_ssl_dtls_replay_update(ssl);
 #endif
     }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-    msg_len = ( ssl->in_len[0] << 8 ) | ssl->in_len[1];
+    msg_len = (ssl->in_len[0] << 8) | ssl->in_len[1];
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
-    {
+    if (ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE) {
         /* Set by mbedtls_ssl_read_record() */
         msg_len = ssl->in_hslen;
-    }
-    else
+    } else
 #endif
     {
-        if( msg_len > MBEDTLS_SSL_IN_CONTENT_LEN )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-            return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
+        if (msg_len > MBEDTLS_SSL_IN_CONTENT_LEN) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+            return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
         }
 
-        if( ( ret = mbedtls_ssl_fetch_input( ssl,
-                       mbedtls_ssl_in_hdr_len( ssl ) + msg_len ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
-            return( ret );
+        if ((ret = mbedtls_ssl_fetch_input(ssl,
+                                           mbedtls_ssl_in_hdr_len(ssl) + msg_len)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_fetch_input", ret);
+            return ret;
         }
 
-    /* Done reading this record, get ready for the next one */
+        /* Done reading this record, get ready for the next one */
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-            ssl->next_record_offset = msg_len + mbedtls_ssl_in_hdr_len( ssl );
-        else
+        if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+            ssl->next_record_offset = msg_len + mbedtls_ssl_in_hdr_len(ssl);
+        } else
 #endif
-            ssl->in_left = 0;
+        ssl->in_left = 0;
     }
 
     buf = ssl->in_msg;
 
-    MBEDTLS_SSL_DEBUG_BUF( 4, "record contents", buf, msg_len );
+    MBEDTLS_SSL_DEBUG_BUF(4, "record contents", buf, msg_len);
 
-    ssl->handshake->update_checksum( ssl, buf, msg_len );
+    ssl->handshake->update_checksum(ssl, buf, msg_len);
 
     /*
      * Handshake layer:
@@ -1080,73 +1030,65 @@
      *     6  .   8   DTLS only: fragment offset
      *     9  .  11   DTLS only: fragment length
      */
-    if( msg_len < mbedtls_ssl_hs_hdr_len( ssl ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (msg_len < mbedtls_ssl_hs_hdr_len(ssl)) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, handshake type: %d", buf[0] ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("client hello v3, handshake type: %d", buf[0]));
 
-    if( buf[0] != MBEDTLS_SSL_HS_CLIENT_HELLO )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+    if (buf[0] != MBEDTLS_SSL_HS_CLIENT_HELLO) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
     }
     {
-        size_t handshake_len = MBEDTLS_GET_UINT24_BE( buf, 1 );
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, handshake len.: %u",
-                       ( unsigned ) handshake_len ) );
+        size_t handshake_len = MBEDTLS_GET_UINT24_BE(buf, 1);
+        MBEDTLS_SSL_DEBUG_MSG(3, ("client hello v3, handshake len.: %u",
+                                  (unsigned) handshake_len));
 
         /* The record layer has a record size limit of 2^14 - 1 and
          * fragmentation is not supported, so buf[1] should be zero. */
-        if( buf[1] != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message: %u != 0",
-                                        (unsigned) buf[1] ) );
-            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+        if (buf[1] != 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message: %u != 0",
+                                      (unsigned) buf[1]));
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
 
         /* We don't support fragmentation of ClientHello (yet?) */
-        if( msg_len != mbedtls_ssl_hs_hdr_len( ssl ) + handshake_len )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message: %u != %u + %u",
-                                    (unsigned) msg_len,
-                                    (unsigned) mbedtls_ssl_hs_hdr_len( ssl ),
-                                    (unsigned) handshake_len ) );
-            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+        if (msg_len != mbedtls_ssl_hs_hdr_len(ssl) + handshake_len) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message: %u != %u + %u",
+                                      (unsigned) msg_len,
+                                      (unsigned) mbedtls_ssl_hs_hdr_len(ssl),
+                                      (unsigned) handshake_len));
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
     }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         /*
          * Copy the client's handshake message_seq on initial handshakes,
          * check sequence number on renego.
          */
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-        if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-        {
+        if (ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS) {
             /* This couldn't be done in ssl_prepare_handshake_record() */
-            unsigned int cli_msg_seq = ( ssl->in_msg[4] << 8 ) |
-                                         ssl->in_msg[5];
+            unsigned int cli_msg_seq = (ssl->in_msg[4] << 8) |
+                                       ssl->in_msg[5];
 
-            if( cli_msg_seq != ssl->handshake->in_msg_seq )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message_seq: "
-                                    "%u (expected %u)", cli_msg_seq,
-                                    ssl->handshake->in_msg_seq ) );
-                return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+            if (cli_msg_seq != ssl->handshake->in_msg_seq) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message_seq: "
+                                          "%u (expected %u)", cli_msg_seq,
+                                          ssl->handshake->in_msg_seq));
+                return MBEDTLS_ERR_SSL_DECODE_ERROR;
             }
 
             ssl->handshake->in_msg_seq++;
-        }
-        else
+        } else
 #endif
         {
-            unsigned int cli_msg_seq = ( ssl->in_msg[4] << 8 ) |
-                                         ssl->in_msg[5];
+            unsigned int cli_msg_seq = (ssl->in_msg[4] << 8) |
+                                       ssl->in_msg[5];
             ssl->handshake->out_msg_seq = cli_msg_seq;
             ssl->handshake->in_msg_seq  = cli_msg_seq + 1;
         }
@@ -1156,24 +1098,23 @@
              * fragment_offset == 0 and fragment_length == length
              */
             size_t fragment_offset, fragment_length, length;
-            fragment_offset = MBEDTLS_GET_UINT24_BE( ssl->in_msg, 6 );
-            fragment_length = MBEDTLS_GET_UINT24_BE( ssl->in_msg, 9 );
-            length = MBEDTLS_GET_UINT24_BE( ssl->in_msg, 1 );
+            fragment_offset = MBEDTLS_GET_UINT24_BE(ssl->in_msg, 6);
+            fragment_length = MBEDTLS_GET_UINT24_BE(ssl->in_msg, 9);
+            length = MBEDTLS_GET_UINT24_BE(ssl->in_msg, 1);
             MBEDTLS_SSL_DEBUG_MSG(
-                4, ( "fragment_offset=%u fragment_length=%u length=%u",
-                     (unsigned) fragment_offset, (unsigned) fragment_length,
-                     (unsigned) length ) );
-            if( fragment_offset != 0 || length != fragment_length )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "ClientHello fragmentation not supported" ) );
-                return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+                4, ("fragment_offset=%u fragment_length=%u length=%u",
+                    (unsigned) fragment_offset, (unsigned) fragment_length,
+                    (unsigned) length));
+            if (fragment_offset != 0 || length != fragment_length) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("ClientHello fragmentation not supported"));
+                return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
             }
         }
     }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-    buf += mbedtls_ssl_hs_hdr_len( ssl );
-    msg_len -= mbedtls_ssl_hs_hdr_len( ssl );
+    buf += mbedtls_ssl_hs_hdr_len(ssl);
+    msg_len -= mbedtls_ssl_hs_hdr_len(ssl);
 
     /*
      * ClientHello layer:
@@ -1196,135 +1137,122 @@
      * 2 + 32 + 1 + 2 + 1 = 38 bytes. Check that first, so that we can
      * read at least up to session id length without worrying.
      */
-    if( msg_len < 38 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (msg_len < 38) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
     /*
      * Check and save the protocol version
      */
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, version", buf, 2 );
+    MBEDTLS_SSL_DEBUG_BUF(3, "client hello, version", buf, 2);
 
-    ssl->tls_version = mbedtls_ssl_read_version( buf, ssl->conf->transport );
+    ssl->tls_version = mbedtls_ssl_read_version(buf, ssl->conf->transport);
     ssl->session_negotiate->tls_version = ssl->tls_version;
 
-    if( ssl->tls_version != MBEDTLS_SSL_VERSION_TLS1_2 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "server only supports TLS 1.2" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                     MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
-        return( MBEDTLS_ERR_SSL_BAD_PROTOCOL_VERSION );
+    if (ssl->tls_version != MBEDTLS_SSL_VERSION_TLS1_2) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("server only supports TLS 1.2"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION);
+        return MBEDTLS_ERR_SSL_BAD_PROTOCOL_VERSION;
     }
 
     /*
      * Save client random (inc. Unix time)
      */
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, random bytes", buf + 2, 32 );
+    MBEDTLS_SSL_DEBUG_BUF(3, "client hello, random bytes", buf + 2, 32);
 
-    memcpy( ssl->handshake->randbytes, buf + 2, 32 );
+    memcpy(ssl->handshake->randbytes, buf + 2, 32);
 
     /*
      * Check the session ID length and save session ID
      */
     sess_len = buf[34];
 
-    if( sess_len > sizeof( ssl->session_negotiate->id ) ||
-        sess_len + 34 + 2 > msg_len ) /* 2 for cipherlist length field */
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (sess_len > sizeof(ssl->session_negotiate->id) ||
+        sess_len + 34 + 2 > msg_len) { /* 2 for cipherlist length field */
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, session id", buf + 35, sess_len );
+    MBEDTLS_SSL_DEBUG_BUF(3, "client hello, session id", buf + 35, sess_len);
 
     ssl->session_negotiate->id_len = sess_len;
-    memset( ssl->session_negotiate->id, 0,
-            sizeof( ssl->session_negotiate->id ) );
-    memcpy( ssl->session_negotiate->id, buf + 35,
-            ssl->session_negotiate->id_len );
+    memset(ssl->session_negotiate->id, 0,
+           sizeof(ssl->session_negotiate->id));
+    memcpy(ssl->session_negotiate->id, buf + 35,
+           ssl->session_negotiate->id_len);
 
     /*
      * Check the cookie length and content
      */
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-    {
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
         cookie_offset = 35 + sess_len;
         cookie_len = buf[cookie_offset];
 
-        if( cookie_offset + 1 + cookie_len + 2 > msg_len )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-            mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                            MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+        if (cookie_offset + 1 + cookie_len + 2 > msg_len) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+            mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                           MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
 
-        MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, cookie",
-                       buf + cookie_offset + 1, cookie_len );
+        MBEDTLS_SSL_DEBUG_BUF(3, "client hello, cookie",
+                              buf + cookie_offset + 1, cookie_len);
 
 #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-        if( ssl->conf->f_cookie_check != NULL
+        if (ssl->conf->f_cookie_check != NULL
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
             && ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE
 #endif
-            )
-        {
-            if( ssl->conf->f_cookie_check( ssl->conf->p_cookie,
-                                     buf + cookie_offset + 1, cookie_len,
-                                     ssl->cli_id, ssl->cli_id_len ) != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification failed" ) );
+            ) {
+            if (ssl->conf->f_cookie_check(ssl->conf->p_cookie,
+                                          buf + cookie_offset + 1, cookie_len,
+                                          ssl->cli_id, ssl->cli_id_len) != 0) {
+                MBEDTLS_SSL_DEBUG_MSG(2, ("cookie verification failed"));
                 ssl->handshake->cookie_verify_result = 1;
-            }
-            else
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification passed" ) );
+            } else {
+                MBEDTLS_SSL_DEBUG_MSG(2, ("cookie verification passed"));
                 ssl->handshake->cookie_verify_result = 0;
             }
-        }
-        else
+        } else
 #endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
         {
             /* We know we didn't send a cookie, so it should be empty */
-            if( cookie_len != 0 )
-            {
+            if (cookie_len != 0) {
                 /* This may be an attacker's probe, so don't send an alert */
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+                MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+                return MBEDTLS_ERR_SSL_DECODE_ERROR;
             }
 
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification skipped" ) );
+            MBEDTLS_SSL_DEBUG_MSG(2, ("cookie verification skipped"));
         }
 
-    /*
-     * Check the ciphersuitelist length (will be parsed later)
-     */
+        /*
+         * Check the ciphersuitelist length (will be parsed later)
+         */
         ciph_offset = cookie_offset + 1 + cookie_len;
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
-        ciph_offset = 35 + sess_len;
+    ciph_offset = 35 + sess_len;
 
-    ciph_len = ( buf[ciph_offset + 0] << 8 )
-             | ( buf[ciph_offset + 1]      );
+    ciph_len = (buf[ciph_offset + 0] << 8)
+               | (buf[ciph_offset + 1]);
 
-    if( ciph_len < 2 ||
+    if (ciph_len < 2 ||
         ciph_len + 2 + ciph_offset + 1 > msg_len || /* 1 for comp. alg. len */
-        ( ciph_len % 2 ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+        (ciph_len % 2) != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, ciphersuitelist",
-                   buf + ciph_offset + 2,  ciph_len );
+    MBEDTLS_SSL_DEBUG_BUF(3, "client hello, ciphersuitelist",
+                          buf + ciph_offset + 2,  ciph_len);
 
     /*
      * Check the compression algorithm's length.
@@ -1336,243 +1264,248 @@
 
     comp_len = buf[comp_offset];
 
-    if( comp_len < 1 ||
+    if (comp_len < 1 ||
         comp_len > 16 ||
-        comp_len + comp_offset + 1 > msg_len )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+        comp_len + comp_offset + 1 > msg_len) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, compression",
-                      buf + comp_offset + 1, comp_len );
+    MBEDTLS_SSL_DEBUG_BUF(3, "client hello, compression",
+                          buf + comp_offset + 1, comp_len);
 
-        /*
-         * Check the extension length
-         */
-        ext_offset = comp_offset + 1 + comp_len;
-        if( msg_len > ext_offset )
-        {
-            if( msg_len < ext_offset + 2 )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-                return( MBEDTLS_ERR_SSL_DECODE_ERROR );
-            }
-
-            ext_len = ( buf[ext_offset + 0] << 8 )
-                    | ( buf[ext_offset + 1]      );
-
-            if( msg_len != ext_offset + 2 + ext_len )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-                return( MBEDTLS_ERR_SSL_DECODE_ERROR );
-            }
+    /*
+     * Check the extension length
+     */
+    ext_offset = comp_offset + 1 + comp_len;
+    if (msg_len > ext_offset) {
+        if (msg_len < ext_offset + 2) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+            mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                           MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
-        else
-            ext_len = 0;
 
-        ext = buf + ext_offset + 2;
-        MBEDTLS_SSL_DEBUG_BUF( 3, "client hello extensions", ext, ext_len );
+        ext_len = (buf[ext_offset + 0] << 8)
+                  | (buf[ext_offset + 1]);
 
-        while( ext_len != 0 )
-        {
-            unsigned int ext_id;
-            unsigned int ext_size;
-            if ( ext_len < 4 ) {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                               MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-                return( MBEDTLS_ERR_SSL_DECODE_ERROR );
-            }
-            ext_id   = ( ( ext[0] <<  8 ) | ( ext[1] ) );
-            ext_size = ( ( ext[2] <<  8 ) | ( ext[3] ) );
+        if (msg_len != ext_offset + 2 + ext_len) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+            mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                           MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
+        }
+    } else {
+        ext_len = 0;
+    }
 
-            if( ext_size + 4 > ext_len )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
-                return( MBEDTLS_ERR_SSL_DECODE_ERROR );
-            }
-            switch( ext_id )
-            {
+    ext = buf + ext_offset + 2;
+    MBEDTLS_SSL_DEBUG_BUF(3, "client hello extensions", ext, ext_len);
+
+    while (ext_len != 0) {
+        unsigned int ext_id;
+        unsigned int ext_size;
+        if (ext_len < 4) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+            mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                           MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
+        }
+        ext_id   = ((ext[0] <<  8) | (ext[1]));
+        ext_size = ((ext[2] <<  8) | (ext[3]));
+
+        if (ext_size + 4 > ext_len) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+            mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                           MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR);
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
+        }
+        switch (ext_id) {
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
             case MBEDTLS_TLS_EXT_SERVERNAME:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ServerName extension" ) );
-                ret = mbedtls_ssl_parse_server_name_ext( ssl, ext + 4,
-                                                         ext + 4 + ext_size );
-                if( ret != 0 )
-                    return( ret );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found ServerName extension"));
+                ret = mbedtls_ssl_parse_server_name_ext(ssl, ext + 4,
+                                                        ext + 4 + ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
                 break;
 #endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
 
             case MBEDTLS_TLS_EXT_RENEGOTIATION_INFO:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found renegotiation extension" ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found renegotiation extension"));
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
                 renegotiation_info_seen = 1;
 #endif
 
-                ret = ssl_parse_renegotiation_info( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
+                ret = ssl_parse_renegotiation_info(ssl, ext + 4, ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
                 break;
 
 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
             case MBEDTLS_TLS_EXT_SIG_ALG:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found signature_algorithms extension" ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found signature_algorithms extension"));
 
-                ret = mbedtls_ssl_parse_sig_alg_ext( ssl, ext + 4, ext + 4 + ext_size );
-                if( ret != 0 )
-                    return( ret );
+                ret = mbedtls_ssl_parse_sig_alg_ext(ssl, ext + 4, ext + 4 + ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
 
                 sig_hash_alg_ext_present = 1;
                 break;
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 
 #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
-    defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
+                defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
             case MBEDTLS_TLS_EXT_SUPPORTED_GROUPS:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported elliptic curves extension" ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found supported elliptic curves extension"));
 
-                ret = ssl_parse_supported_groups_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
+                ret = ssl_parse_supported_groups_ext(ssl, ext + 4, ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
                 break;
 
             case MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported point formats extension" ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found supported point formats extension"));
                 ssl->handshake->cli_exts |= MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT;
 
-                ret = ssl_parse_supported_point_formats( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
+                ret = ssl_parse_supported_point_formats(ssl, ext + 4, ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
                 break;
 #endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
           MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
             case MBEDTLS_TLS_EXT_ECJPAKE_KKPP:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ecjpake kkpp extension" ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found ecjpake kkpp extension"));
 
-                ret = ssl_parse_ecjpake_kkpp( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
+                ret = ssl_parse_ecjpake_kkpp(ssl, ext + 4, ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
                 break;
 #endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
 
 #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
             case MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found max fragment length extension" ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found max fragment length extension"));
 
-                ret = ssl_parse_max_fragment_length_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
+                ret = ssl_parse_max_fragment_length_ext(ssl, ext + 4, ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
                 break;
 #endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
             case MBEDTLS_TLS_EXT_CID:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found CID extension" ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found CID extension"));
 
-                ret = ssl_parse_cid_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
+                ret = ssl_parse_cid_ext(ssl, ext + 4, ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
                 break;
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
             case MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found encrypt then mac extension" ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found encrypt then mac extension"));
 
-                ret = ssl_parse_encrypt_then_mac_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
+                ret = ssl_parse_encrypt_then_mac_ext(ssl, ext + 4, ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
                 break;
 #endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
 
 #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
             case MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found extended master secret extension" ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found extended master secret extension"));
 
-                ret = ssl_parse_extended_ms_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
+                ret = ssl_parse_extended_ms_ext(ssl, ext + 4, ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
                 break;
 #endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
             case MBEDTLS_TLS_EXT_SESSION_TICKET:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found session ticket extension" ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found session ticket extension"));
 
-                ret = ssl_parse_session_ticket_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
+                ret = ssl_parse_session_ticket_ext(ssl, ext + 4, ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
                 break;
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
 
 #if defined(MBEDTLS_SSL_ALPN)
             case MBEDTLS_TLS_EXT_ALPN:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found alpn extension" ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found alpn extension"));
 
-                ret = mbedtls_ssl_parse_alpn_ext( ssl, ext + 4,
-                                                  ext + 4 + ext_size );
-                if( ret != 0 )
-                    return( ret );
+                ret = mbedtls_ssl_parse_alpn_ext(ssl, ext + 4,
+                                                 ext + 4 + ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
                 break;
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
 
 #if defined(MBEDTLS_SSL_DTLS_SRTP)
             case MBEDTLS_TLS_EXT_USE_SRTP:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "found use_srtp extension" ) );
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found use_srtp extension"));
 
-                ret = ssl_parse_use_srtp_ext( ssl, ext + 4, ext_size );
-                if( ret != 0 )
-                    return( ret );
+                ret = ssl_parse_use_srtp_ext(ssl, ext + 4, ext_size);
+                if (ret != 0) {
+                    return ret;
+                }
                 break;
 #endif /* MBEDTLS_SSL_DTLS_SRTP */
 
             default:
-                MBEDTLS_SSL_DEBUG_MSG( 3, ( "unknown extension found: %u (ignoring)",
-                               ext_id ) );
-            }
-
-            ext_len -= 4 + ext_size;
-            ext += 4 + ext_size;
+                MBEDTLS_SSL_DEBUG_MSG(3, ("unknown extension found: %u (ignoring)",
+                                          ext_id));
         }
 
+        ext_len -= 4 + ext_size;
+        ext += 4 + ext_size;
+    }
+
 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
 
     /*
      * Try to fall back to default hash SHA1 if the client
      * hasn't provided any preferred signature-hash combinations.
      */
-    if( ! sig_hash_alg_ext_present )
-    {
+    if (!sig_hash_alg_ext_present) {
         uint16_t *received_sig_algs = ssl->handshake->received_sig_algs;
         const uint16_t default_sig_algs[] = {
 #if defined(MBEDTLS_ECDSA_C)
-            MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG( MBEDTLS_SSL_SIG_ECDSA,
-                                                MBEDTLS_SSL_HASH_SHA1 ),
+            MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_ECDSA,
+                                               MBEDTLS_SSL_HASH_SHA1),
 #endif
 #if defined(MBEDTLS_RSA_C)
-            MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG( MBEDTLS_SSL_SIG_RSA,
-                                                MBEDTLS_SSL_HASH_SHA1 ),
+            MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_RSA,
+                                               MBEDTLS_SSL_HASH_SHA1),
 #endif
             MBEDTLS_TLS_SIG_NONE
         };
 
 #if defined(static_assert)
-        static_assert( sizeof( default_sig_algs ) / sizeof( default_sig_algs[0] ) <=
-                       MBEDTLS_RECEIVED_SIG_ALGS_SIZE, "default_sig_algs is too big" );
+        static_assert(sizeof(default_sig_algs) / sizeof(default_sig_algs[0]) <=
+                      MBEDTLS_RECEIVED_SIG_ALGS_SIZE, "default_sig_algs is too big");
 #endif
 
-        memcpy( received_sig_algs, default_sig_algs, sizeof( default_sig_algs ) );
+        memcpy(received_sig_algs, default_sig_algs, sizeof(default_sig_algs));
     }
 
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
@@ -1580,19 +1513,16 @@
     /*
      * Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV
      */
-    for( i = 0, p = buf + ciph_offset + 2; i < ciph_len; i += 2, p += 2 )
-    {
-        if( p[0] == 0 && p[1] == MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "received TLS_EMPTY_RENEGOTIATION_INFO " ) );
+    for (i = 0, p = buf + ciph_offset + 2; i < ciph_len; i += 2, p += 2) {
+        if (p[0] == 0 && p[1] == MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO) {
+            MBEDTLS_SSL_DEBUG_MSG(3, ("received TLS_EMPTY_RENEGOTIATION_INFO "));
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-            if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "received RENEGOTIATION SCSV "
-                                            "during renegotiation" ) );
-                mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                                MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-                return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
+            if (ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("received RENEGOTIATION SCSV "
+                                          "during renegotiation"));
+                mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                               MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE);
+                return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
             }
 #endif
             ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION;
@@ -1603,50 +1533,42 @@
     /*
      * Renegotiation security checks
      */
-    if( ssl->secure_renegotiation != MBEDTLS_SSL_SECURE_RENEGOTIATION &&
-        ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) );
+    if (ssl->secure_renegotiation != MBEDTLS_SSL_SECURE_RENEGOTIATION &&
+        ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("legacy renegotiation, breaking off handshake"));
         handshake_failure = 1;
     }
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
+    else if (ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
              ssl->secure_renegotiation == MBEDTLS_SSL_SECURE_RENEGOTIATION &&
-             renegotiation_info_seen == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension missing (secure)" ) );
+             renegotiation_info_seen == 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("renegotiation_info extension missing (secure)"));
         handshake_failure = 1;
-    }
-    else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
-             ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
-             ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation not allowed" ) );
+    } else if (ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
+               ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
+               ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("legacy renegotiation not allowed"));
         handshake_failure = 1;
-    }
-    else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
-             ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
-             renegotiation_info_seen == 1 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension present (legacy)" ) );
+    } else if (ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
+               ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
+               renegotiation_info_seen == 1) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("renegotiation_info extension present (legacy)"));
         handshake_failure = 1;
     }
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
 
-    if( handshake_failure == 1 )
-    {
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
+    if (handshake_failure == 1) {
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE);
+        return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
     }
 
     /*
      * Server certification selection (after processing TLS extensions)
      */
-    if( ssl->conf->f_cert_cb && ( ret = ssl->conf->f_cert_cb( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "f_cert_cb", ret );
-        return( ret );
+    if (ssl->conf->f_cert_cb && (ret = ssl->conf->f_cert_cb(ssl)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "f_cert_cb", ret);
+        return ret;
     }
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
     ssl->handshake->sni_name = NULL;
@@ -1663,59 +1585,61 @@
     ciphersuites = ssl->conf->ciphersuite_list;
     ciphersuite_info = NULL;
 
-    if (ssl->conf->respect_cli_pref == MBEDTLS_SSL_SRV_CIPHERSUITE_ORDER_CLIENT)
-    {
-        for( j = 0, p = buf + ciph_offset + 2; j < ciph_len; j += 2, p += 2 )
-            for( i = 0; ciphersuites[i] != 0; i++ )
-            {
-                if( MBEDTLS_GET_UINT16_BE(p, 0) != ciphersuites[i] )
+    if (ssl->conf->respect_cli_pref == MBEDTLS_SSL_SRV_CIPHERSUITE_ORDER_CLIENT) {
+        for (j = 0, p = buf + ciph_offset + 2; j < ciph_len; j += 2, p += 2) {
+            for (i = 0; ciphersuites[i] != 0; i++) {
+                if (MBEDTLS_GET_UINT16_BE(p, 0) != ciphersuites[i]) {
                     continue;
+                }
 
                 got_common_suite = 1;
 
-                if( ( ret = ssl_ciphersuite_match( ssl, ciphersuites[i],
-                                                   &ciphersuite_info ) ) != 0 )
-                    return( ret );
+                if ((ret = ssl_ciphersuite_match(ssl, ciphersuites[i],
+                                                 &ciphersuite_info)) != 0) {
+                    return ret;
+                }
 
-                if( ciphersuite_info != NULL )
+                if (ciphersuite_info != NULL) {
                     goto have_ciphersuite;
+                }
             }
+        }
     } else {
-        for( i = 0; ciphersuites[i] != 0; i++ )
-            for( j = 0, p = buf + ciph_offset + 2; j < ciph_len; j += 2, p += 2 )
-            {
-                if( MBEDTLS_GET_UINT16_BE(p, 0) != ciphersuites[i] )
+        for (i = 0; ciphersuites[i] != 0; i++) {
+            for (j = 0, p = buf + ciph_offset + 2; j < ciph_len; j += 2, p += 2) {
+                if (MBEDTLS_GET_UINT16_BE(p, 0) != ciphersuites[i]) {
                     continue;
+                }
 
                 got_common_suite = 1;
 
-                if( ( ret = ssl_ciphersuite_match( ssl, ciphersuites[i],
-                                                   &ciphersuite_info ) ) != 0 )
-                    return( ret );
+                if ((ret = ssl_ciphersuite_match(ssl, ciphersuites[i],
+                                                 &ciphersuite_info)) != 0) {
+                    return ret;
+                }
 
-                if( ciphersuite_info != NULL )
+                if (ciphersuite_info != NULL) {
                     goto have_ciphersuite;
+                }
             }
+        }
     }
 
-    if( got_common_suite )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got ciphersuites in common, "
-                            "but none of them usable" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no ciphersuites in common" ) );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
-        return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
+    if (got_common_suite) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("got ciphersuites in common, "
+                                  "but none of them usable"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE);
+        return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
+    } else {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("got no ciphersuites in common"));
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE);
+        return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
     }
 
 have_ciphersuite:
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "selected ciphersuite: %s", ciphersuite_info->name ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("selected ciphersuite: %s", ciphersuite_info->name));
 
     ssl->session_negotiate->ciphersuite = ciphersuites[i];
     ssl->handshake->ciphersuite_info = ciphersuite_info;
@@ -1723,37 +1647,35 @@
     ssl->state++;
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        mbedtls_ssl_recv_flight_completed( ssl );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        mbedtls_ssl_recv_flight_completed(ssl);
+    }
 #endif
 
     /* Debugging-only output for testsuite */
 #if defined(MBEDTLS_DEBUG_C)                         && \
     defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
-    mbedtls_pk_type_t sig_alg = mbedtls_ssl_get_ciphersuite_sig_alg( ciphersuite_info );
-    if( sig_alg != MBEDTLS_PK_NONE )
-    {
+    mbedtls_pk_type_t sig_alg = mbedtls_ssl_get_ciphersuite_sig_alg(ciphersuite_info);
+    if (sig_alg != MBEDTLS_PK_NONE) {
         unsigned int sig_hash = mbedtls_ssl_tls12_get_preferred_hash_for_sig_alg(
-                                    ssl, mbedtls_ssl_sig_from_pk_alg( sig_alg ) );
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext: %u",
-                                    sig_hash ) );
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "no hash algorithm for signature algorithm "
-                                    "%u - should not happen", (unsigned) sig_alg ) );
+            ssl, mbedtls_ssl_sig_from_pk_alg(sig_alg));
+        MBEDTLS_SSL_DEBUG_MSG(3, ("client hello v3, signature_algorithm ext: %u",
+                                  sig_hash));
+    } else {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("no hash algorithm for signature algorithm "
+                                  "%u - should not happen", (unsigned) sig_alg));
     }
 #endif
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client hello" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= parse client hello"));
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
-static void ssl_write_cid_ext( mbedtls_ssl_context *ssl,
-                               unsigned char *buf,
-                               size_t *olen )
+static void ssl_write_cid_ext(mbedtls_ssl_context *ssl,
+                              unsigned char *buf,
+                              size_t *olen)
 {
     unsigned char *p = buf;
     size_t ext_len;
@@ -1763,41 +1685,41 @@
 
     /* Skip writing the extension if we don't want to use it or if
      * the client hasn't offered it. */
-    if( ssl->handshake->cid_in_use == MBEDTLS_SSL_CID_DISABLED )
-        return;
-
-    /* ssl->own_cid_len is at most MBEDTLS_SSL_CID_IN_LEN_MAX
-     * which is at most 255, so the increment cannot overflow. */
-    if( end < p || (size_t)( end - p ) < (unsigned)( ssl->own_cid_len + 5 ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
+    if (ssl->handshake->cid_in_use == MBEDTLS_SSL_CID_DISABLED) {
         return;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding CID extension" ) );
+    /* ssl->own_cid_len is at most MBEDTLS_SSL_CID_IN_LEN_MAX
+     * which is at most 255, so the increment cannot overflow. */
+    if (end < p || (size_t) (end - p) < (unsigned) (ssl->own_cid_len + 5)) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("buffer too small"));
+        return;
+    }
+
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, adding CID extension"));
 
     /*
      *   struct {
      *      opaque cid<0..2^8-1>;
      *   } ConnectionId;
-    */
-    MBEDTLS_PUT_UINT16_BE( MBEDTLS_TLS_EXT_CID, p, 0 );
+     */
+    MBEDTLS_PUT_UINT16_BE(MBEDTLS_TLS_EXT_CID, p, 0);
     p += 2;
     ext_len = (size_t) ssl->own_cid_len + 1;
-    MBEDTLS_PUT_UINT16_BE( ext_len, p, 0 );
+    MBEDTLS_PUT_UINT16_BE(ext_len, p, 0);
     p += 2;
 
     *p++ = (uint8_t) ssl->own_cid_len;
-    memcpy( p, ssl->own_cid, ssl->own_cid_len );
+    memcpy(p, ssl->own_cid, ssl->own_cid_len);
 
     *olen = ssl->own_cid_len + 5;
 }
 #endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
 
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_CBC_ETM)
-static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
-                                            unsigned char *buf,
-                                            size_t *olen )
+static void ssl_write_encrypt_then_mac_ext(mbedtls_ssl_context *ssl,
+                                           unsigned char *buf,
+                                           size_t *olen)
 {
     unsigned char *p = buf;
     const mbedtls_ssl_ciphersuite_t *suite = NULL;
@@ -1809,29 +1731,28 @@
      * encrypt-then-MAC response extension back to the client."
      */
     suite = mbedtls_ssl_ciphersuite_from_id(
-                    ssl->session_negotiate->ciphersuite );
-    if( suite == NULL )
+        ssl->session_negotiate->ciphersuite);
+    if (suite == NULL) {
         ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_DISABLED;
-    else
-    {
+    } else {
         mbedtls_ssl_mode_t ssl_mode =
             mbedtls_ssl_get_mode_from_ciphersuite(
                 ssl->session_negotiate->encrypt_then_mac,
-                suite );
+                suite);
 
-        if( ssl_mode != MBEDTLS_SSL_MODE_CBC_ETM )
+        if (ssl_mode != MBEDTLS_SSL_MODE_CBC_ETM) {
             ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_DISABLED;
+        }
     }
 
-    if( ssl->session_negotiate->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED )
-    {
+    if (ssl->session_negotiate->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED) {
         *olen = 0;
         return;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding encrypt then mac extension" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, adding encrypt then mac extension"));
 
-    MBEDTLS_PUT_UINT16_BE( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC, p, 0 );
+    MBEDTLS_PUT_UINT16_BE(MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC, p, 0);
     p += 2;
 
     *p++ = 0x00;
@@ -1842,22 +1763,21 @@
 #endif /* MBEDTLS_SSL_SOME_SUITES_USE_CBC_ETM */
 
 #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-static void ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl,
-                                       unsigned char *buf,
-                                       size_t *olen )
+static void ssl_write_extended_ms_ext(mbedtls_ssl_context *ssl,
+                                      unsigned char *buf,
+                                      size_t *olen)
 {
     unsigned char *p = buf;
 
-    if( ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED )
-    {
+    if (ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED) {
         *olen = 0;
         return;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding extended master secret "
-                        "extension" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, adding extended master secret "
+                              "extension"));
 
-    MBEDTLS_PUT_UINT16_BE( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET, p, 0 );
+    MBEDTLS_PUT_UINT16_BE(MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET, p, 0);
     p += 2;
 
     *p++ = 0x00;
@@ -1868,21 +1788,20 @@
 #endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
-static void ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl,
-                                          unsigned char *buf,
-                                          size_t *olen )
+static void ssl_write_session_ticket_ext(mbedtls_ssl_context *ssl,
+                                         unsigned char *buf,
+                                         size_t *olen)
 {
     unsigned char *p = buf;
 
-    if( ssl->handshake->new_session_ticket == 0 )
-    {
+    if (ssl->handshake->new_session_ticket == 0) {
         *olen = 0;
         return;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding session ticket extension" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, adding session ticket extension"));
 
-    MBEDTLS_PUT_UINT16_BE( MBEDTLS_TLS_EXT_SESSION_TICKET, p, 0 );
+    MBEDTLS_PUT_UINT16_BE(MBEDTLS_TLS_EXT_SESSION_TICKET, p, 0);
     p += 2;
 
     *p++ = 0x00;
@@ -1892,36 +1811,33 @@
 }
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
 
-static void ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl,
-                                         unsigned char *buf,
-                                         size_t *olen )
+static void ssl_write_renegotiation_ext(mbedtls_ssl_context *ssl,
+                                        unsigned char *buf,
+                                        size_t *olen)
 {
     unsigned char *p = buf;
 
-    if( ssl->secure_renegotiation != MBEDTLS_SSL_SECURE_RENEGOTIATION )
-    {
+    if (ssl->secure_renegotiation != MBEDTLS_SSL_SECURE_RENEGOTIATION) {
         *olen = 0;
         return;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, secure renegotiation extension" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, secure renegotiation extension"));
 
-    MBEDTLS_PUT_UINT16_BE( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO, p, 0 );
+    MBEDTLS_PUT_UINT16_BE(MBEDTLS_TLS_EXT_RENEGOTIATION_INFO, p, 0);
     p += 2;
 
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
-    {
+    if (ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE) {
         *p++ = 0x00;
-        *p++ = ( ssl->verify_data_len * 2 + 1 ) & 0xFF;
+        *p++ = (ssl->verify_data_len * 2 + 1) & 0xFF;
         *p++ = ssl->verify_data_len * 2 & 0xFF;
 
-        memcpy( p, ssl->peer_verify_data, ssl->verify_data_len );
+        memcpy(p, ssl->peer_verify_data, ssl->verify_data_len);
         p += ssl->verify_data_len;
-        memcpy( p, ssl->own_verify_data, ssl->verify_data_len );
+        memcpy(p, ssl->own_verify_data, ssl->verify_data_len);
         p += ssl->verify_data_len;
-    }
-    else
+    } else
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
     {
         *p++ = 0x00;
@@ -1933,21 +1849,20 @@
 }
 
 #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-static void ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl,
-                                               unsigned char *buf,
-                                               size_t *olen )
+static void ssl_write_max_fragment_length_ext(mbedtls_ssl_context *ssl,
+                                              unsigned char *buf,
+                                              size_t *olen)
 {
     unsigned char *p = buf;
 
-    if( ssl->session_negotiate->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE )
-    {
+    if (ssl->session_negotiate->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE) {
         *olen = 0;
         return;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, max_fragment_length extension" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, max_fragment_length extension"));
 
-    MBEDTLS_PUT_UINT16_BE( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH, p, 0 );
+    MBEDTLS_PUT_UINT16_BE(MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH, p, 0);
     p += 2;
 
     *p++ = 0x00;
@@ -1961,23 +1876,22 @@
 
 #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
     defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-static void ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl,
-                                                   unsigned char *buf,
-                                                   size_t *olen )
+static void ssl_write_supported_point_formats_ext(mbedtls_ssl_context *ssl,
+                                                  unsigned char *buf,
+                                                  size_t *olen)
 {
     unsigned char *p = buf;
     ((void) ssl);
 
-    if( ( ssl->handshake->cli_exts &
-          MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT ) == 0 )
-    {
+    if ((ssl->handshake->cli_exts &
+         MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT) == 0) {
         *olen = 0;
         return;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, supported_point_formats extension" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, supported_point_formats extension"));
 
-    MBEDTLS_PUT_UINT16_BE( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS, p, 0 );
+    MBEDTLS_PUT_UINT16_BE(MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS, p, 0);
     p += 2;
 
     *p++ = 0x00;
@@ -1991,9 +1905,9 @@
 #endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-static void ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl,
-                                        unsigned char *buf,
-                                        size_t *olen )
+static void ssl_write_ecjpake_kkpp_ext(mbedtls_ssl_context *ssl,
+                                       unsigned char *buf,
+                                       size_t *olen)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char *p = buf;
@@ -2003,54 +1917,52 @@
     *olen = 0;
 
     /* Skip costly computation if not needed */
-    if( ssl->handshake->ciphersuite_info->key_exchange !=
-        MBEDTLS_KEY_EXCHANGE_ECJPAKE )
-        return;
-
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, ecjpake kkpp extension" ) );
-
-    if( end - p < 4 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
+    if (ssl->handshake->ciphersuite_info->key_exchange !=
+        MBEDTLS_KEY_EXCHANGE_ECJPAKE) {
         return;
     }
 
-    MBEDTLS_PUT_UINT16_BE( MBEDTLS_TLS_EXT_ECJPAKE_KKPP, p, 0 );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, ecjpake kkpp extension"));
+
+    if (end - p < 4) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("buffer too small"));
+        return;
+    }
+
+    MBEDTLS_PUT_UINT16_BE(MBEDTLS_TLS_EXT_ECJPAKE_KKPP, p, 0);
     p += 2;
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    ret = mbedtls_psa_ecjpake_write_round( &ssl->handshake->psa_pake_ctx,
-                                p + 2, end - p - 2, &kkpp_len,
-                                MBEDTLS_ECJPAKE_ROUND_ONE );
-    if ( ret != 0 )
-    {
-        psa_destroy_key( ssl->handshake->psa_pake_password );
-        psa_pake_abort( &ssl->handshake->psa_pake_ctx );
-        MBEDTLS_SSL_DEBUG_RET( 1 , "psa_pake_output", ret );
+    ret = mbedtls_psa_ecjpake_write_round(&ssl->handshake->psa_pake_ctx,
+                                          p + 2, end - p - 2, &kkpp_len,
+                                          MBEDTLS_ECJPAKE_ROUND_ONE);
+    if (ret != 0) {
+        psa_destroy_key(ssl->handshake->psa_pake_password);
+        psa_pake_abort(&ssl->handshake->psa_pake_ctx);
+        MBEDTLS_SSL_DEBUG_RET(1, "psa_pake_output", ret);
         return;
     }
 #else
-    ret = mbedtls_ecjpake_write_round_one( &ssl->handshake->ecjpake_ctx,
-                                        p + 2, end - p - 2, &kkpp_len,
-                                        ssl->conf->f_rng, ssl->conf->p_rng );
-    if( ret != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1 , "mbedtls_ecjpake_write_round_one", ret );
+    ret = mbedtls_ecjpake_write_round_one(&ssl->handshake->ecjpake_ctx,
+                                          p + 2, end - p - 2, &kkpp_len,
+                                          ssl->conf->f_rng, ssl->conf->p_rng);
+    if (ret != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ecjpake_write_round_one", ret);
         return;
     }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-    MBEDTLS_PUT_UINT16_BE( kkpp_len, p, 0 );
+    MBEDTLS_PUT_UINT16_BE(kkpp_len, p, 0);
     p += 2;
 
     *olen = kkpp_len + 4;
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
 
-#if defined(MBEDTLS_SSL_DTLS_SRTP ) && defined(MBEDTLS_SSL_PROTO_DTLS)
-static void ssl_write_use_srtp_ext( mbedtls_ssl_context *ssl,
-                                    unsigned char *buf,
-                                    size_t *olen )
+#if defined(MBEDTLS_SSL_DTLS_SRTP) && defined(MBEDTLS_SSL_PROTO_DTLS)
+static void ssl_write_use_srtp_ext(mbedtls_ssl_context *ssl,
+                                   unsigned char *buf,
+                                   size_t *olen)
 {
     size_t mki_len = 0, ext_len = 0;
     uint16_t profile_value = 0;
@@ -2058,16 +1970,14 @@
 
     *olen = 0;
 
-    if( ( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM ) ||
-        ( ssl->dtls_srtp_info.chosen_dtls_srtp_profile == MBEDTLS_TLS_SRTP_UNSET ) )
-    {
+    if ((ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM) ||
+        (ssl->dtls_srtp_info.chosen_dtls_srtp_profile == MBEDTLS_TLS_SRTP_UNSET)) {
         return;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding use_srtp extension" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, adding use_srtp extension"));
 
-    if( ssl->conf->dtls_srtp_mki_support == MBEDTLS_SSL_DTLS_SRTP_MKI_SUPPORTED )
-    {
+    if (ssl->conf->dtls_srtp_mki_support == MBEDTLS_SSL_DTLS_SRTP_MKI_SUPPORTED) {
         mki_len = ssl->dtls_srtp_info.mki_len;
     }
 
@@ -2079,38 +1989,34 @@
      * - 1 byte for the mki length
      * +  the actual mki length
      * Check we have enough room in the output buffer */
-    if( (size_t)( end - buf ) < mki_len + 9 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
+    if ((size_t) (end - buf) < mki_len + 9) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("buffer too small"));
         return;
     }
 
     /* extension */
-    MBEDTLS_PUT_UINT16_BE(MBEDTLS_TLS_EXT_USE_SRTP, buf, 0 );
+    MBEDTLS_PUT_UINT16_BE(MBEDTLS_TLS_EXT_USE_SRTP, buf, 0);
     /*
      * total length 5 and mki value: only one profile(2 bytes)
      *              and length(2 bytes) and srtp_mki  )
      */
     ext_len = 5 + mki_len;
-    MBEDTLS_PUT_UINT16_BE( ext_len, buf, 2 );
+    MBEDTLS_PUT_UINT16_BE(ext_len, buf, 2);
 
     /* protection profile length: 2 */
     buf[4] = 0x00;
     buf[5] = 0x02;
     profile_value = mbedtls_ssl_check_srtp_profile_value(
-                                ssl->dtls_srtp_info.chosen_dtls_srtp_profile );
-    if( profile_value != MBEDTLS_TLS_SRTP_UNSET )
-    {
-        MBEDTLS_PUT_UINT16_BE( profile_value, buf, 6 );
-    }
-    else
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "use_srtp extension invalid profile" ) );
+        ssl->dtls_srtp_info.chosen_dtls_srtp_profile);
+    if (profile_value != MBEDTLS_TLS_SRTP_UNSET) {
+        MBEDTLS_PUT_UINT16_BE(profile_value, buf, 6);
+    } else {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("use_srtp extension invalid profile"));
         return;
     }
 
     buf[8] = mki_len & 0xFF;
-    memcpy( &buf[9], ssl->dtls_srtp_info.mki_value, mki_len );
+    memcpy(&buf[9], ssl->dtls_srtp_info.mki_value, mki_len);
 
     *olen = 9 + mki_len;
 }
@@ -2118,13 +2024,13 @@
 
 #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_write_hello_verify_request( mbedtls_ssl_context *ssl )
+static int ssl_write_hello_verify_request(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char *p = ssl->out_msg + 4;
     unsigned char *cookie_len_byte;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write hello verify request" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write hello verify request"));
 
     /*
      * struct {
@@ -2135,31 +2041,29 @@
 
     /* The RFC is not clear on this point, but sending the actual negotiated
      * version looks like the most interoperable thing to do. */
-    mbedtls_ssl_write_version( p, ssl->conf->transport, ssl->tls_version );
-    MBEDTLS_SSL_DEBUG_BUF( 3, "server version", p, 2 );
+    mbedtls_ssl_write_version(p, ssl->conf->transport, ssl->tls_version);
+    MBEDTLS_SSL_DEBUG_BUF(3, "server version", p, 2);
     p += 2;
 
     /* If we get here, f_cookie_check is not null */
-    if( ssl->conf->f_cookie_write == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "inconsistent cookie callbacks" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    if (ssl->conf->f_cookie_write == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("inconsistent cookie callbacks"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
     /* Skip length byte until we know the length */
     cookie_len_byte = p++;
 
-    if( ( ret = ssl->conf->f_cookie_write( ssl->conf->p_cookie,
-                                     &p, ssl->out_buf + MBEDTLS_SSL_OUT_BUFFER_LEN,
-                                     ssl->cli_id, ssl->cli_id_len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "f_cookie_write", ret );
-        return( ret );
+    if ((ret = ssl->conf->f_cookie_write(ssl->conf->p_cookie,
+                                         &p, ssl->out_buf + MBEDTLS_SSL_OUT_BUFFER_LEN,
+                                         ssl->cli_id, ssl->cli_id_len)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "f_cookie_write", ret);
+        return ret;
     }
 
-    *cookie_len_byte = (unsigned char)( p - ( cookie_len_byte + 1 ) );
+    *cookie_len_byte = (unsigned char) (p - (cookie_len_byte + 1));
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "cookie sent", cookie_len_byte + 1, *cookie_len_byte );
+    MBEDTLS_SSL_DEBUG_BUF(3, "cookie sent", cookie_len_byte + 1, *cookie_len_byte);
 
     ssl->out_msglen  = p - ssl->out_msg;
     ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
@@ -2167,28 +2071,26 @@
 
     ssl->state = MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT;
 
-    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;
     }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret );
-        return( ret );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        (ret = mbedtls_ssl_flight_transmit(ssl)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_flight_transmit", ret);
+        return ret;
     }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write hello verify request" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write hello verify request"));
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
 
-static void ssl_handle_id_based_session_resumption( mbedtls_ssl_context *ssl )
+static void ssl_handle_id_based_session_resumption(mbedtls_ssl_context *ssl)
 {
     int ret;
     mbedtls_ssl_session session_tmp;
@@ -2196,47 +2098,51 @@
 
     /* Resume is 0  by default, see ssl_handshake_init().
      * It may be already set to 1 by ssl_parse_session_ticket_ext(). */
-    if( ssl->handshake->resume == 1 )
+    if (ssl->handshake->resume == 1) {
         return;
-    if( session->id_len == 0 )
+    }
+    if (session->id_len == 0) {
         return;
-    if( ssl->conf->f_get_cache == NULL )
+    }
+    if (ssl->conf->f_get_cache == NULL) {
         return;
+    }
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
-    if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
+    if (ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE) {
         return;
+    }
 #endif
 
-    mbedtls_ssl_session_init( &session_tmp );
+    mbedtls_ssl_session_init(&session_tmp);
 
-    ret = ssl->conf->f_get_cache( ssl->conf->p_cache,
-                                  session->id,
-                                  session->id_len,
-                                  &session_tmp );
-    if( ret != 0 )
+    ret = ssl->conf->f_get_cache(ssl->conf->p_cache,
+                                 session->id,
+                                 session->id_len,
+                                 &session_tmp);
+    if (ret != 0) {
         goto exit;
+    }
 
-    if( session->ciphersuite != session_tmp.ciphersuite )
-    {
+    if (session->ciphersuite != session_tmp.ciphersuite) {
         /* Mismatch between cached and negotiated session */
         goto exit;
     }
 
     /* Move semantics */
-    mbedtls_ssl_session_free( session );
+    mbedtls_ssl_session_free(session);
     *session = session_tmp;
-    memset( &session_tmp, 0, sizeof( session_tmp ) );
+    memset(&session_tmp, 0, sizeof(session_tmp));
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "session successfully restored from cache" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("session successfully restored from cache"));
     ssl->handshake->resume = 1;
 
 exit:
 
-    mbedtls_ssl_session_free( &session_tmp );
+    mbedtls_ssl_session_free(&session_tmp);
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_write_server_hello( mbedtls_ssl_context *ssl )
+static int ssl_write_server_hello(mbedtls_ssl_context *ssl)
 {
 #if defined(MBEDTLS_HAVE_TIME)
     mbedtls_time_t t;
@@ -2245,23 +2151,21 @@
     size_t olen, ext_len = 0, n;
     unsigned char *buf, *p;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server hello" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write server hello"));
 
 #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ssl->handshake->cookie_verify_result != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "client hello was not authenticated" ) );
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello" ) );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        ssl->handshake->cookie_verify_result != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("client hello was not authenticated"));
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= write server hello"));
 
-        return( ssl_write_hello_verify_request( ssl ) );
+        return ssl_write_hello_verify_request(ssl);
     }
 #endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
 
-    if( ssl->conf->f_rng == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "no RNG provided") );
-        return( MBEDTLS_ERR_SSL_NO_RNG );
+    if (ssl->conf->f_rng == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("no RNG provided"));
+        return MBEDTLS_ERR_SSL_NO_RNG;
     }
 
     /*
@@ -2274,39 +2178,40 @@
     buf = ssl->out_msg;
     p = buf + 4;
 
-    mbedtls_ssl_write_version( p, ssl->conf->transport, ssl->tls_version );
+    mbedtls_ssl_write_version(p, ssl->conf->transport, ssl->tls_version);
     p += 2;
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen version: [%d:%d]",
-                        buf[4], buf[5] ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, chosen version: [%d:%d]",
+                              buf[4], buf[5]));
 
 #if defined(MBEDTLS_HAVE_TIME)
-    t = mbedtls_time( NULL );
-    MBEDTLS_PUT_UINT32_BE( t, p, 0 );
+    t = mbedtls_time(NULL);
+    MBEDTLS_PUT_UINT32_BE(t, p, 0);
     p += 4;
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %" MBEDTLS_PRINTF_LONGLONG,
-                                (long long) t ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, current time: %" MBEDTLS_PRINTF_LONGLONG,
+                              (long long) t));
 #else
-    if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 4 ) ) != 0 )
-        return( ret );
+    if ((ret = ssl->conf->f_rng(ssl->conf->p_rng, p, 4)) != 0) {
+        return ret;
+    }
 
     p += 4;
 #endif /* MBEDTLS_HAVE_TIME */
 
-    if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 28 ) ) != 0 )
-        return( ret );
+    if ((ret = ssl->conf->f_rng(ssl->conf->p_rng, p, 28)) != 0) {
+        return ret;
+    }
 
     p += 28;
 
-    memcpy( ssl->handshake->randbytes + 32, buf + 6, 32 );
+    memcpy(ssl->handshake->randbytes + 32, buf + 6, 32);
 
-    MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, random bytes", buf + 6, 32 );
+    MBEDTLS_SSL_DEBUG_BUF(3, "server hello, random bytes", buf + 6, 32);
 
-    ssl_handle_id_based_session_resumption( ssl );
+    ssl_handle_id_based_session_resumption(ssl);
 
-    if( ssl->handshake->resume == 0 )
-    {
+    if (ssl->handshake->resume == 0) {
         /*
          * New session, create a new session id,
          * unless we're about to issue a session ticket
@@ -2314,36 +2219,32 @@
         ssl->state++;
 
 #if defined(MBEDTLS_HAVE_TIME)
-        ssl->session_negotiate->start = mbedtls_time( NULL );
+        ssl->session_negotiate->start = mbedtls_time(NULL);
 #endif
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
-        if( ssl->handshake->new_session_ticket != 0 )
-        {
+        if (ssl->handshake->new_session_ticket != 0) {
             ssl->session_negotiate->id_len = n = 0;
-            memset( ssl->session_negotiate->id, 0, 32 );
-        }
-        else
+            memset(ssl->session_negotiate->id, 0, 32);
+        } else
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
         {
             ssl->session_negotiate->id_len = n = 32;
-            if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->session_negotiate->id,
-                                    n ) ) != 0 )
-                return( ret );
+            if ((ret = ssl->conf->f_rng(ssl->conf->p_rng, ssl->session_negotiate->id,
+                                        n)) != 0) {
+                return ret;
+            }
         }
-    }
-    else
-    {
+    } else {
         /*
          * Resuming a session
          */
         n = ssl->session_negotiate->id_len;
         ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC;
 
-        if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
-            return( ret );
+        if ((ret = mbedtls_ssl_derive_keys(ssl)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_derive_keys", ret);
+            return ret;
         }
     }
 
@@ -2356,90 +2257,89 @@
      *   44+n . 43+n+m  extensions
      */
     *p++ = (unsigned char) ssl->session_negotiate->id_len;
-    memcpy( p, ssl->session_negotiate->id, ssl->session_negotiate->id_len );
+    memcpy(p, ssl->session_negotiate->id, ssl->session_negotiate->id_len);
     p += ssl->session_negotiate->id_len;
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %" MBEDTLS_PRINTF_SIZET, n ) );
-    MBEDTLS_SSL_DEBUG_BUF( 3,   "server hello, session id", buf + 39, n );
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "%s session has been resumed",
-                   ssl->handshake->resume ? "a" : "no" ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, session id len.: %" MBEDTLS_PRINTF_SIZET, n));
+    MBEDTLS_SSL_DEBUG_BUF(3,   "server hello, session id", buf + 39, n);
+    MBEDTLS_SSL_DEBUG_MSG(3, ("%s session has been resumed",
+                              ssl->handshake->resume ? "a" : "no"));
 
-    MBEDTLS_PUT_UINT16_BE( ssl->session_negotiate->ciphersuite, p, 0 );
+    MBEDTLS_PUT_UINT16_BE(ssl->session_negotiate->ciphersuite, p, 0);
     p += 2;
-    *p++ = MBEDTLS_BYTE_0( MBEDTLS_SSL_COMPRESS_NULL );
+    *p++ = MBEDTLS_BYTE_0(MBEDTLS_SSL_COMPRESS_NULL);
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %s",
-           mbedtls_ssl_get_ciphersuite_name( ssl->session_negotiate->ciphersuite ) ) );
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: 0x%02X",
-                   (unsigned int) MBEDTLS_SSL_COMPRESS_NULL ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, chosen ciphersuite: %s",
+                              mbedtls_ssl_get_ciphersuite_name(ssl->session_negotiate->ciphersuite)));
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, compress alg.: 0x%02X",
+                              (unsigned int) MBEDTLS_SSL_COMPRESS_NULL));
 
     /*
      *  First write extensions, then the total length
      */
-    ssl_write_renegotiation_ext( ssl, p + 2 + ext_len, &olen );
+    ssl_write_renegotiation_ext(ssl, p + 2 + ext_len, &olen);
     ext_len += olen;
 
 #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    ssl_write_max_fragment_length_ext( ssl, p + 2 + ext_len, &olen );
+    ssl_write_max_fragment_length_ext(ssl, p + 2 + ext_len, &olen);
     ext_len += olen;
 #endif
 
 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
-    ssl_write_cid_ext( ssl, p + 2 + ext_len, &olen );
+    ssl_write_cid_ext(ssl, p + 2 + ext_len, &olen);
     ext_len += olen;
 #endif
 
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_CBC_ETM)
-    ssl_write_encrypt_then_mac_ext( ssl, p + 2 + ext_len, &olen );
+    ssl_write_encrypt_then_mac_ext(ssl, p + 2 + ext_len, &olen);
     ext_len += olen;
 #endif
 
 #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
-    ssl_write_extended_ms_ext( ssl, p + 2 + ext_len, &olen );
+    ssl_write_extended_ms_ext(ssl, p + 2 + ext_len, &olen);
     ext_len += olen;
 #endif
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    ssl_write_session_ticket_ext( ssl, p + 2 + ext_len, &olen );
+    ssl_write_session_ticket_ext(ssl, p + 2 + ext_len, &olen);
     ext_len += olen;
 #endif
 
 #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
     defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
     const mbedtls_ssl_ciphersuite_t *suite =
-        mbedtls_ssl_ciphersuite_from_id( ssl->session_negotiate->ciphersuite );
-    if ( suite != NULL && mbedtls_ssl_ciphersuite_uses_ec( suite) )
-    {
-        ssl_write_supported_point_formats_ext( ssl, p + 2 + ext_len, &olen );
+        mbedtls_ssl_ciphersuite_from_id(ssl->session_negotiate->ciphersuite);
+    if (suite != NULL && mbedtls_ssl_ciphersuite_uses_ec(suite)) {
+        ssl_write_supported_point_formats_ext(ssl, p + 2 + ext_len, &olen);
         ext_len += olen;
     }
 #endif
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    ssl_write_ecjpake_kkpp_ext( ssl, p + 2 + ext_len, &olen );
+    ssl_write_ecjpake_kkpp_ext(ssl, p + 2 + ext_len, &olen);
     ext_len += olen;
 #endif
 
 #if defined(MBEDTLS_SSL_ALPN)
     unsigned char *end = buf + MBEDTLS_SSL_OUT_CONTENT_LEN - 4;
-    if( ( ret = mbedtls_ssl_write_alpn_ext( ssl, p + 2 + ext_len, end, &olen ) )
-        != 0 )
+    if ((ret = mbedtls_ssl_write_alpn_ext(ssl, p + 2 + ext_len, end, &olen))
+        != 0) {
         return ret;
+    }
 
     ext_len += olen;
 #endif
 
 #if defined(MBEDTLS_SSL_DTLS_SRTP)
-    ssl_write_use_srtp_ext( ssl, p + 2 + ext_len, &olen );
+    ssl_write_use_srtp_ext(ssl, p + 2 + ext_len, &olen);
     ext_len += olen;
 #endif
 
-    MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, total extension length: %" MBEDTLS_PRINTF_SIZET,
-                                ext_len ) );
+    MBEDTLS_SSL_DEBUG_MSG(3, ("server hello, total extension length: %" MBEDTLS_PRINTF_SIZET,
+                              ext_len));
 
-    if( ext_len > 0 )
-    {
-        MBEDTLS_PUT_UINT16_BE( ext_len, p, 0 );
+    if (ext_len > 0) {
+        MBEDTLS_PUT_UINT16_BE(ext_len, p, 0);
         p += 2 + ext_len;
     }
 
@@ -2447,35 +2347,34 @@
     ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
     ssl->out_msg[0]  = MBEDTLS_SSL_HS_SERVER_HELLO;
 
-    ret = mbedtls_ssl_write_handshake_msg( ssl );
+    ret = mbedtls_ssl_write_handshake_msg(ssl);
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write server hello"));
 
-    return( ret );
+    return ret;
 }
 
 #if !defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_write_certificate_request( mbedtls_ssl_context *ssl )
+static int ssl_write_certificate_request(mbedtls_ssl_context *ssl)
 {
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
         ssl->handshake->ciphersuite_info;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate request" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write certificate request"));
 
-    if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate request" ) );
+    if (!mbedtls_ssl_ciphersuite_cert_req_allowed(ciphersuite_info)) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip write certificate request"));
         ssl->state++;
-        return( 0 );
+        return 0;
     }
 
-    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;
 }
 #else /* !MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_write_certificate_request( mbedtls_ssl_context *ssl )
+static int ssl_write_certificate_request(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
@@ -2487,22 +2386,21 @@
     const mbedtls_x509_crt *crt;
     int authmode;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate request" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write certificate request"));
 
     ssl->state++;
 
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    if( ssl->handshake->sni_authmode != MBEDTLS_SSL_VERIFY_UNSET )
+    if (ssl->handshake->sni_authmode != MBEDTLS_SSL_VERIFY_UNSET) {
         authmode = ssl->handshake->sni_authmode;
-    else
+    } else
 #endif
-        authmode = ssl->conf->authmode;
+    authmode = ssl->conf->authmode;
 
-    if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) ||
-        authmode == MBEDTLS_SSL_VERIFY_NONE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate request" ) );
-        return( 0 );
+    if (!mbedtls_ssl_ciphersuite_cert_req_allowed(ciphersuite_info) ||
+        authmode == MBEDTLS_SSL_VERIFY_NONE) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip write certificate request"));
+        return 0;
     }
 
     /*
@@ -2553,29 +2451,31 @@
      *     enum { (255) } HashAlgorithm;
      *     enum { (255) } SignatureAlgorithm;
      */
-    const uint16_t *sig_alg = mbedtls_ssl_get_sig_algs( ssl );
-    if( sig_alg == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_CONFIG );
+    const uint16_t *sig_alg = mbedtls_ssl_get_sig_algs(ssl);
+    if (sig_alg == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_CONFIG;
+    }
 
-    for( ; *sig_alg != MBEDTLS_TLS_SIG_NONE; sig_alg++ )
-    {
-        unsigned char hash = MBEDTLS_BYTE_1( *sig_alg );
+    for (; *sig_alg != MBEDTLS_TLS_SIG_NONE; sig_alg++) {
+        unsigned char hash = MBEDTLS_BYTE_1(*sig_alg);
 
-        if( mbedtls_ssl_set_calc_verify_md( ssl, hash ) )
+        if (mbedtls_ssl_set_calc_verify_md(ssl, hash)) {
             continue;
-        if( ! mbedtls_ssl_sig_alg_is_supported( ssl, *sig_alg ) )
+        }
+        if (!mbedtls_ssl_sig_alg_is_supported(ssl, *sig_alg)) {
             continue;
+        }
 
         /* Write elements at offsets starting from 1 (offset 0 is for the
          * length). Thus the offset of each element is the length of the
          * partial list including that element. */
         sa_len += 2;
-        MBEDTLS_PUT_UINT16_BE( *sig_alg, p, sa_len );
+        MBEDTLS_PUT_UINT16_BE(*sig_alg, p, sa_len);
 
     }
 
     /* Fill in list length. */
-    MBEDTLS_PUT_UINT16_BE( sa_len, p, 0 );
+    MBEDTLS_PUT_UINT16_BE(sa_len, p, 0);
     sa_len += 2;
     p += sa_len;
 
@@ -2587,8 +2487,7 @@
 
     total_dn_size = 0;
 
-    if( ssl->conf->cert_req_ca_list ==  MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED )
-    {
+    if (ssl->conf->cert_req_ca_list ==  MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED) {
         /* NOTE: If trusted certificates are provisioned
          *       via a CA callback (configured through
          *       `mbedtls_ssl_conf_ca_cb()`, then the
@@ -2596,39 +2495,37 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED)
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-        if( ssl->handshake->dn_hints != NULL )
+        if (ssl->handshake->dn_hints != NULL) {
             crt = ssl->handshake->dn_hints;
-        else
+        } else
 #endif
-        if( ssl->conf->dn_hints != NULL )
+        if (ssl->conf->dn_hints != NULL) {
             crt = ssl->conf->dn_hints;
-        else
+        } else
 #endif
 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-        if( ssl->handshake->sni_ca_chain != NULL )
+        if (ssl->handshake->sni_ca_chain != NULL) {
             crt = ssl->handshake->sni_ca_chain;
-        else
+        } else
 #endif
-            crt = ssl->conf->ca_chain;
+        crt = ssl->conf->ca_chain;
 
-        while( crt != NULL && crt->version != 0 )
-        {
+        while (crt != NULL && crt->version != 0) {
             /* It follows from RFC 5280 A.1 that this length
              * can be represented in at most 11 bits. */
             dn_size = (uint16_t) crt->subject_raw.len;
 
-            if( end < p || (size_t)( end - p ) < 2 + (size_t) dn_size )
-            {
-                MBEDTLS_SSL_DEBUG_MSG( 1, ( "skipping CAs: buffer too short" ) );
+            if (end < p || (size_t) (end - p) < 2 + (size_t) dn_size) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("skipping CAs: buffer too short"));
                 break;
             }
 
-            MBEDTLS_PUT_UINT16_BE( dn_size, p, 0 );
+            MBEDTLS_PUT_UINT16_BE(dn_size, p, 0);
             p += 2;
-            memcpy( p, crt->subject_raw.p, dn_size );
+            memcpy(p, crt->subject_raw.p, dn_size);
             p += dn_size;
 
-            MBEDTLS_SSL_DEBUG_BUF( 3, "requested DN", p - dn_size, dn_size );
+            MBEDTLS_SSL_DEBUG_BUF(3, "requested DN", p - dn_size, dn_size);
 
             total_dn_size += 2 + dn_size;
             crt = crt->next;
@@ -2638,21 +2535,21 @@
     ssl->out_msglen  = p - buf;
     ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
     ssl->out_msg[0]  = MBEDTLS_SSL_HS_CERTIFICATE_REQUEST;
-    MBEDTLS_PUT_UINT16_BE( total_dn_size, ssl->out_msg, 4 + ct_len + sa_len );
+    MBEDTLS_PUT_UINT16_BE(total_dn_size, ssl->out_msg, 4 + ct_len + sa_len);
 
-    ret = mbedtls_ssl_write_handshake_msg( ssl );
+    ret = mbedtls_ssl_write_handshake_msg(ssl);
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate request" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write certificate request"));
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO) &&                      \
-        ( defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
-          defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) )
+    (defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
+    defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED))
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
+static int ssl_get_ecdh_params_from_cert(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
@@ -2665,119 +2562,116 @@
     mbedtls_pk_context *pk;
     mbedtls_ecp_keypair *key;
 
-    pk = mbedtls_ssl_own_key( ssl );
+    pk = mbedtls_ssl_own_key(ssl);
 
-    if( pk == NULL )
-        return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
+    if (pk == NULL) {
+        return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
+    }
 
-    switch( mbedtls_pk_get_type( pk ) )
-    {
-    case MBEDTLS_PK_OPAQUE:
-        if( ! mbedtls_pk_can_do( pk, MBEDTLS_PK_ECKEY ) )
-            return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH );
+    switch (mbedtls_pk_get_type(pk)) {
+        case MBEDTLS_PK_OPAQUE:
+            if (!mbedtls_pk_can_do(pk, MBEDTLS_PK_ECKEY)) {
+                return MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH;
+            }
 
-        ssl->handshake->ecdh_psa_privkey =
-                *( (mbedtls_svc_key_id_t*) pk->pk_ctx );
+            ssl->handshake->ecdh_psa_privkey =
+                *((mbedtls_svc_key_id_t *) pk->pk_ctx);
 
-        /* Key should not be destroyed in the TLS library */
-        ssl->handshake->ecdh_psa_privkey_is_external = 1;
+            /* Key should not be destroyed in the TLS library */
+            ssl->handshake->ecdh_psa_privkey_is_external = 1;
 
-        status = psa_get_key_attributes( ssl->handshake->ecdh_psa_privkey,
-                                         &key_attributes );
-        if( status != PSA_SUCCESS)
-        {
-            ssl->handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
-            return( psa_ssl_status_to_mbedtls( status ) );
-        }
+            status = psa_get_key_attributes(ssl->handshake->ecdh_psa_privkey,
+                                            &key_attributes);
+            if (status != PSA_SUCCESS) {
+                ssl->handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
+                return psa_ssl_status_to_mbedtls(status);
+            }
 
-        ssl->handshake->ecdh_psa_type = psa_get_key_type( &key_attributes );
-        ssl->handshake->ecdh_bits = psa_get_key_bits( &key_attributes );
+            ssl->handshake->ecdh_psa_type = psa_get_key_type(&key_attributes);
+            ssl->handshake->ecdh_bits = psa_get_key_bits(&key_attributes);
 
-        psa_reset_key_attributes( &key_attributes );
+            psa_reset_key_attributes(&key_attributes);
 
-        ret = 0;
-        break;
-    case MBEDTLS_PK_ECKEY:
-    case MBEDTLS_PK_ECKEY_DH:
-    case MBEDTLS_PK_ECDSA:
-        key = mbedtls_pk_ec( *pk );
-        if( key == NULL )
-            return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
+            ret = 0;
+            break;
+        case MBEDTLS_PK_ECKEY:
+        case MBEDTLS_PK_ECKEY_DH:
+        case MBEDTLS_PK_ECDSA:
+            key = mbedtls_pk_ec(*pk);
+            if (key == NULL) {
+                return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
+            }
 
-        tls_id = mbedtls_ssl_get_tls_id_from_ecp_group_id( key->grp.id );
-        if( tls_id == 0 )
-        {
-            /* This elliptic curve is not supported */
-            return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
-        }
+            tls_id = mbedtls_ssl_get_tls_id_from_ecp_group_id(key->grp.id);
+            if (tls_id == 0) {
+                /* This elliptic curve is not supported */
+                return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
+            }
 
-        /* If the above conversion to TLS ID was fine, then also this one will
-           be, so there is no need to check the return value here */
-        mbedtls_ssl_get_psa_curve_info_from_tls_id( tls_id, &ecc_family,
-                                &ssl->handshake->ecdh_bits );
+            /* If the above conversion to TLS ID was fine, then also this one will
+               be, so there is no need to check the return value here */
+            mbedtls_ssl_get_psa_curve_info_from_tls_id(tls_id, &ecc_family,
+                                                       &ssl->handshake->ecdh_bits);
 
-        ssl->handshake->ecdh_psa_type = PSA_KEY_TYPE_ECC_KEY_PAIR( ecc_family );
+            ssl->handshake->ecdh_psa_type = PSA_KEY_TYPE_ECC_KEY_PAIR(ecc_family);
 
-        key_attributes = psa_key_attributes_init();
-        psa_set_key_usage_flags( &key_attributes, PSA_KEY_USAGE_DERIVE );
-        psa_set_key_algorithm( &key_attributes, PSA_ALG_ECDH );
-        psa_set_key_type( &key_attributes,
-                PSA_KEY_TYPE_ECC_KEY_PAIR( ssl->handshake->ecdh_psa_type ) );
-        psa_set_key_bits( &key_attributes, ssl->handshake->ecdh_bits );
+            key_attributes = psa_key_attributes_init();
+            psa_set_key_usage_flags(&key_attributes, PSA_KEY_USAGE_DERIVE);
+            psa_set_key_algorithm(&key_attributes, PSA_ALG_ECDH);
+            psa_set_key_type(&key_attributes,
+                             PSA_KEY_TYPE_ECC_KEY_PAIR(ssl->handshake->ecdh_psa_type));
+            psa_set_key_bits(&key_attributes, ssl->handshake->ecdh_bits);
 
-        key_len = PSA_BITS_TO_BYTES( key->grp.pbits );
-        ret = mbedtls_ecp_write_key( key, buf, key_len );
-        if( ret != 0 )
-            goto cleanup;
+            key_len = PSA_BITS_TO_BYTES(key->grp.pbits);
+            ret = mbedtls_ecp_write_key(key, buf, key_len);
+            if (ret != 0) {
+                goto cleanup;
+            }
 
-        status = psa_import_key( &key_attributes, buf, key_len,
-                                 &ssl->handshake->ecdh_psa_privkey );
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            goto cleanup;
-        }
+            status = psa_import_key(&key_attributes, buf, key_len,
+                                    &ssl->handshake->ecdh_psa_privkey);
+            if (status != PSA_SUCCESS) {
+                ret = psa_ssl_status_to_mbedtls(status);
+                goto cleanup;
+            }
 
-        ret = 0;
-        break;
-    default:
+            ret = 0;
+            break;
+        default:
             ret = MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH;
     }
 
 cleanup:
-    mbedtls_platform_zeroize( buf, sizeof( buf ) );
+    mbedtls_platform_zeroize(buf, sizeof(buf));
 
-    return( ret );
+    return ret;
 }
 #elif defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
     defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
+static int ssl_get_ecdh_params_from_cert(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    const mbedtls_pk_context *private_key = mbedtls_ssl_own_key( ssl );
-    if( private_key == NULL)
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no server private key" ) );
-        return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
+    const mbedtls_pk_context *private_key = mbedtls_ssl_own_key(ssl);
+    if (private_key == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("got no server private key"));
+        return MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED;
     }
 
-    if( ! mbedtls_pk_can_do( private_key, MBEDTLS_PK_ECKEY ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) );
-        return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH );
+    if (!mbedtls_pk_can_do(private_key, MBEDTLS_PK_ECKEY)) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("server key not ECDH capable"));
+        return MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH;
     }
 
-    if( ( ret = mbedtls_ecdh_get_params( &ssl->handshake->ecdh_ctx,
-                                 mbedtls_pk_ec( *mbedtls_ssl_own_key( ssl ) ),
-                                 MBEDTLS_ECDH_OURS ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_get_params" ), ret );
-        return( ret );
+    if ((ret = mbedtls_ecdh_get_params(&ssl->handshake->ecdh_ctx,
+                                       mbedtls_pk_ec(*mbedtls_ssl_own_key(ssl)),
+                                       MBEDTLS_ECDH_OURS)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, ("mbedtls_ecdh_get_params"), ret);
+        return ret;
     }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) ||
           MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
@@ -2785,8 +2679,8 @@
 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED) && \
     defined(MBEDTLS_SSL_ASYNC_PRIVATE)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_resume_server_key_exchange( mbedtls_ssl_context *ssl,
-                                           size_t *signature_len )
+static int ssl_resume_server_key_exchange(mbedtls_ssl_context *ssl,
+                                          size_t *signature_len)
 {
     /* Append the signature to ssl->out_msg, leaving 2 bytes for the
      * signature length which will be added in ssl_write_server_key_exchange
@@ -2794,17 +2688,16 @@
      * ssl_write_server_key_exchange also takes care of incrementing
      * ssl->out_msglen. */
     unsigned char *sig_start = ssl->out_msg + ssl->out_msglen + 2;
-    size_t sig_max_len = ( ssl->out_buf + MBEDTLS_SSL_OUT_CONTENT_LEN
-                           - sig_start );
-    int ret = ssl->conf->f_async_resume( ssl,
-                                         sig_start, signature_len, sig_max_len );
-    if( ret != MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS )
-    {
+    size_t sig_max_len = (ssl->out_buf + MBEDTLS_SSL_OUT_CONTENT_LEN
+                          - sig_start);
+    int ret = ssl->conf->f_async_resume(ssl,
+                                        sig_start, signature_len, sig_max_len);
+    if (ret != MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS) {
         ssl->handshake->async_in_progress = 0;
-        mbedtls_ssl_set_async_operation_data( ssl, NULL );
+        mbedtls_ssl_set_async_operation_data(ssl, NULL);
     }
-    MBEDTLS_SSL_DEBUG_RET( 2, "ssl_resume_server_key_exchange", ret );
-    return( ret );
+    MBEDTLS_SSL_DEBUG_RET(2, "ssl_resume_server_key_exchange", ret);
+    return ret;
 }
 #endif /* defined(MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED) &&
           defined(MBEDTLS_SSL_ASYNC_PRIVATE) */
@@ -2813,8 +2706,8 @@
  * calculating the signature if any, but excluding formatting the
  * signature and sending the message. */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_prepare_server_key_exchange( mbedtls_ssl_context *ssl,
-                                            size_t *signature_len )
+static int ssl_prepare_server_key_exchange(mbedtls_ssl_context *ssl,
+                                           size_t *signature_len)
 {
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
         ssl->handshake->ciphersuite_info;
@@ -2832,9 +2725,9 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED)
 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
-    size_t out_buf_len = ssl->out_buf_len - ( ssl->out_msg - ssl->out_buf );
+    size_t out_buf_len = ssl->out_buf_len - (ssl->out_msg - ssl->out_buf);
 #else
-    size_t out_buf_len = MBEDTLS_SSL_OUT_BUFFER_LEN - ( ssl->out_msg - ssl->out_buf );
+    size_t out_buf_len = MBEDTLS_SSL_OUT_BUFFER_LEN - (ssl->out_msg - ssl->out_buf);
 #endif
 #endif
 
@@ -2850,8 +2743,7 @@
      * - ECJPAKE key exchanges
      */
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
-    {
+    if (ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE) {
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
         unsigned char *out_p = ssl->out_msg + ssl->out_msglen;
@@ -2869,25 +2761,23 @@
          * TLS ID here
          */
         uint16_t tls_id = mbedtls_ssl_get_tls_id_from_ecp_group_id(
-                                    MBEDTLS_ECP_DP_SECP256R1 );
-        if( tls_id ==0 )
-        {
-            return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+            MBEDTLS_ECP_DP_SECP256R1);
+        if (tls_id == 0) {
+            return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
         }
         *out_p = MBEDTLS_ECP_TLS_NAMED_CURVE;
-        MBEDTLS_PUT_UINT16_BE( tls_id, out_p, 1 );
+        MBEDTLS_PUT_UINT16_BE(tls_id, out_p, 1);
         output_offset += 3;
 
-        ret = mbedtls_psa_ecjpake_write_round( &ssl->handshake->psa_pake_ctx,
-                                    out_p + output_offset,
-                                    end_p - out_p - output_offset, &output_len,
-                                    MBEDTLS_ECJPAKE_ROUND_TWO );
-        if( ret != 0 )
-        {
-            psa_destroy_key( ssl->handshake->psa_pake_password );
-            psa_pake_abort( &ssl->handshake->psa_pake_ctx );
-            MBEDTLS_SSL_DEBUG_RET( 1 , "psa_pake_output", ret );
-            return( ret );
+        ret = mbedtls_psa_ecjpake_write_round(&ssl->handshake->psa_pake_ctx,
+                                              out_p + output_offset,
+                                              end_p - out_p - output_offset, &output_len,
+                                              MBEDTLS_ECJPAKE_ROUND_TWO);
+        if (ret != 0) {
+            psa_destroy_key(ssl->handshake->psa_pake_password);
+            psa_pake_abort(&ssl->handshake->psa_pake_ctx);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_pake_output", ret);
+            return ret;
         }
 
         output_offset += output_len;
@@ -2899,11 +2789,10 @@
             &ssl->handshake->ecjpake_ctx,
             ssl->out_msg + ssl->out_msglen,
             MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen, &len,
-            ssl->conf->f_rng, ssl->conf->p_rng );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_write_round_two", ret );
-            return( ret );
+            ssl->conf->f_rng, ssl->conf->p_rng);
+        if (ret != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ecjpake_write_round_two", ret);
+            return ret;
         }
 
         ssl->out_msglen += len;
@@ -2918,9 +2807,8 @@
      **/
 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)   || \
     defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
-    {
+    if (ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
+        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK) {
         ssl->out_msg[ssl->out_msglen++] = 0x00;
         ssl->out_msg[ssl->out_msglen++] = 0x00;
     }
@@ -2931,15 +2819,13 @@
      * - DHE key exchanges
      */
 #if defined(MBEDTLS_KEY_EXCHANGE_SOME_DHE_ENABLED)
-    if( mbedtls_ssl_ciphersuite_uses_dhe( ciphersuite_info ) )
-    {
+    if (mbedtls_ssl_ciphersuite_uses_dhe(ciphersuite_info)) {
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
         size_t len = 0;
 
-        if( ssl->conf->dhm_P.p == NULL || ssl->conf->dhm_G.p == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "no DH parameters set" ) );
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+        if (ssl->conf->dhm_P.p == NULL || ssl->conf->dhm_G.p == NULL) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("no DH parameters set"));
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
         }
 
         /*
@@ -2951,22 +2837,20 @@
          *     opaque dh_Ys<1..2^16-1>;
          * } ServerDHParams;
          */
-        if( ( ret = mbedtls_dhm_set_group( &ssl->handshake->dhm_ctx,
-                                           &ssl->conf->dhm_P,
-                                           &ssl->conf->dhm_G ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_set_group", ret );
-            return( ret );
+        if ((ret = mbedtls_dhm_set_group(&ssl->handshake->dhm_ctx,
+                                         &ssl->conf->dhm_P,
+                                         &ssl->conf->dhm_G)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_dhm_set_group", ret);
+            return ret;
         }
 
-        if( ( ret = mbedtls_dhm_make_params(
-                  &ssl->handshake->dhm_ctx,
-                  (int) mbedtls_dhm_get_len( &ssl->handshake->dhm_ctx ),
-                  ssl->out_msg + ssl->out_msglen, &len,
-                  ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_params", ret );
-            return( ret );
+        if ((ret = mbedtls_dhm_make_params(
+                 &ssl->handshake->dhm_ctx,
+                 (int) mbedtls_dhm_get_len(&ssl->handshake->dhm_ctx),
+                 ssl->out_msg + ssl->out_msglen, &len,
+                 ssl->conf->f_rng, ssl->conf->p_rng)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_dhm_make_params", ret);
+            return ret;
         }
 
 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED)
@@ -2975,10 +2859,10 @@
 
         ssl->out_msglen += len;
 
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: X ", &ssl->handshake->dhm_ctx.X  );
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: P ", &ssl->handshake->dhm_ctx.P  );
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: G ", &ssl->handshake->dhm_ctx.G  );
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GX", &ssl->handshake->dhm_ctx.GX );
+        MBEDTLS_SSL_DEBUG_MPI(3, "DHM: X ", &ssl->handshake->dhm_ctx.X);
+        MBEDTLS_SSL_DEBUG_MPI(3, "DHM: P ", &ssl->handshake->dhm_ctx.P);
+        MBEDTLS_SSL_DEBUG_MPI(3, "DHM: G ", &ssl->handshake->dhm_ctx.G);
+        MBEDTLS_SSL_DEBUG_MPI(3, "DHM: GX", &ssl->handshake->dhm_ctx.GX);
     }
 #endif /* MBEDTLS_KEY_EXCHANGE_SOME_DHE_ENABLED */
 
@@ -2986,8 +2870,7 @@
      * - ECDHE key exchanges
      */
 #if defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDHE_ENABLED)
-    if( mbedtls_ssl_ciphersuite_uses_ecdhe( ciphersuite_info ) )
-    {
+    if (mbedtls_ssl_ciphersuite_uses_ecdhe(ciphersuite_info)) {
         /*
          * Ephemeral ECDH parameters:
          *
@@ -2997,28 +2880,31 @@
          * } ServerECDHParams;
          */
         uint16_t *curr_tls_id = ssl->handshake->curves_tls_id;
-        const uint16_t *group_list = mbedtls_ssl_get_groups( ssl );
+        const uint16_t *group_list = mbedtls_ssl_get_groups(ssl);
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
         size_t len = 0;
 
         /* Match our preference list against the offered curves */
-        if( ( group_list == NULL ) || ( curr_tls_id == NULL ) )
-            return( MBEDTLS_ERR_SSL_BAD_CONFIG );
-        for( ; *group_list != 0; group_list++ )
-            for( curr_tls_id = ssl->handshake->curves_tls_id;
-                 *curr_tls_id != 0; curr_tls_id++ )
-                if( *curr_tls_id == *group_list )
+        if ((group_list == NULL) || (curr_tls_id == NULL)) {
+            return MBEDTLS_ERR_SSL_BAD_CONFIG;
+        }
+        for (; *group_list != 0; group_list++) {
+            for (curr_tls_id = ssl->handshake->curves_tls_id;
+                 *curr_tls_id != 0; curr_tls_id++) {
+                if (*curr_tls_id == *group_list) {
                     goto curve_matching_done;
-
-curve_matching_done:
-        if( *curr_tls_id == 0 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "no matching curve for ECDHE" ) );
-            return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
+                }
+            }
         }
 
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDHE curve: %s",
-                    mbedtls_ssl_get_curve_name_from_tls_id(*curr_tls_id) ) );
+curve_matching_done:
+        if (*curr_tls_id == 0) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("no matching curve for ECDHE"));
+            return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
+        }
+
+        MBEDTLS_SSL_DEBUG_MSG(2, ("ECDHE curve: %s",
+                                  mbedtls_ssl_get_curve_name_from_tls_id(*curr_tls_id)));
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
         psa_status_t status = PSA_ERROR_GENERIC_ERROR;
@@ -3031,23 +2917,23 @@
         psa_ecc_family_t ec_psa_family = 0;
         size_t ec_bits = 0;
 
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Perform PSA-based ECDH computation." ) );
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Perform PSA-based ECDH computation."));
 
         /* Convert EC's TLS ID to PSA key type. */
-        if( mbedtls_ssl_get_psa_curve_info_from_tls_id( *curr_tls_id,
-                &ec_psa_family, &ec_bits ) == PSA_ERROR_NOT_SUPPORTED )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Invalid ecc group parse." ) );
-            return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
+        if (mbedtls_ssl_get_psa_curve_info_from_tls_id(*curr_tls_id,
+                                                       &ec_psa_family,
+                                                       &ec_bits) == PSA_ERROR_NOT_SUPPORTED) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("Invalid ecc group parse."));
+            return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
         }
-        handshake->ecdh_psa_type = PSA_KEY_TYPE_ECC_KEY_PAIR( ec_psa_family );
+        handshake->ecdh_psa_type = PSA_KEY_TYPE_ECC_KEY_PAIR(ec_psa_family);
         handshake->ecdh_bits = ec_bits;
 
         key_attributes = psa_key_attributes_init();
-        psa_set_key_usage_flags( &key_attributes, PSA_KEY_USAGE_DERIVE );
-        psa_set_key_algorithm( &key_attributes, PSA_ALG_ECDH );
-        psa_set_key_type( &key_attributes, handshake->ecdh_psa_type );
-        psa_set_key_bits( &key_attributes, handshake->ecdh_bits );
+        psa_set_key_usage_flags(&key_attributes, PSA_KEY_USAGE_DERIVE);
+        psa_set_key_algorithm(&key_attributes, PSA_ALG_ECDH);
+        psa_set_key_type(&key_attributes, handshake->ecdh_psa_type);
+        psa_set_key_bits(&key_attributes, handshake->ecdh_bits);
 
         /*
          * ECParameters curve_params
@@ -3059,17 +2945,16 @@
         /*
          * Next two bytes are the namedcurve value
          */
-        MBEDTLS_PUT_UINT16_BE( *curr_tls_id, p, 0 );
+        MBEDTLS_PUT_UINT16_BE(*curr_tls_id, p, 0);
         p += 2;
 
         /* Generate ECDH private key. */
-        status = psa_generate_key( &key_attributes,
-                                   &handshake->ecdh_psa_privkey );
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_generate_key", ret );
-            return( ret );
+        status = psa_generate_key(&key_attributes,
+                                  &handshake->ecdh_psa_privkey);
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_generate_key", ret);
+            return ret;
         }
 
         /*
@@ -3084,19 +2969,18 @@
          */
         unsigned char *own_pubkey = p + data_length_size;
 
-        size_t own_pubkey_max_len = (size_t)( MBEDTLS_SSL_OUT_CONTENT_LEN
-                                    - ( own_pubkey - ssl->out_msg ) );
+        size_t own_pubkey_max_len = (size_t) (MBEDTLS_SSL_OUT_CONTENT_LEN
+                                              - (own_pubkey - ssl->out_msg));
 
-        status = psa_export_public_key( handshake->ecdh_psa_privkey,
-                                        own_pubkey, own_pubkey_max_len,
-                                        &len );
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_export_public_key", ret );
-            (void) psa_destroy_key( handshake->ecdh_psa_privkey );
+        status = psa_export_public_key(handshake->ecdh_psa_privkey,
+                                       own_pubkey, own_pubkey_max_len,
+                                       &len);
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_export_public_key", ret);
+            (void) psa_destroy_key(handshake->ecdh_psa_privkey);
             handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
-            return( ret );
+            return ret;
         }
 
         /* Store the length of the exported public key. */
@@ -3106,27 +2990,25 @@
         len += header_size;
 #else
         mbedtls_ecp_group_id curr_grp_id =
-                    mbedtls_ssl_get_ecp_group_id_from_tls_id( *curr_tls_id );
+            mbedtls_ssl_get_ecp_group_id_from_tls_id(*curr_tls_id);
 
-        if( ( ret = mbedtls_ecdh_setup( &ssl->handshake->ecdh_ctx,
-                                        curr_grp_id ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecp_group_load", ret );
-            return( ret );
+        if ((ret = mbedtls_ecdh_setup(&ssl->handshake->ecdh_ctx,
+                                      curr_grp_id)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ecp_group_load", ret);
+            return ret;
         }
 
-        if( ( ret = mbedtls_ecdh_make_params(
-                &ssl->handshake->ecdh_ctx, &len,
-                ssl->out_msg + ssl->out_msglen,
-                MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen,
-                ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_params", ret );
-            return( ret );
+        if ((ret = mbedtls_ecdh_make_params(
+                 &ssl->handshake->ecdh_ctx, &len,
+                 ssl->out_msg + ssl->out_msglen,
+                 MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen,
+                 ssl->conf->f_rng, ssl->conf->p_rng)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ecdh_make_params", ret);
+            return ret;
         }
 
-        MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                MBEDTLS_DEBUG_ECDH_Q );
+        MBEDTLS_SSL_DEBUG_ECDH(3, &ssl->handshake->ecdh_ctx,
+                               MBEDTLS_DEBUG_ECDH_Q);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED)
@@ -3144,12 +3026,10 @@
      *
      */
 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED)
-    if( mbedtls_ssl_ciphersuite_uses_server_signature( ciphersuite_info ) )
-    {
-        if( dig_signed == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    if (mbedtls_ssl_ciphersuite_uses_server_signature(ciphersuite_info)) {
+        if (dig_signed == NULL) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
 
         size_t dig_signed_len = ssl->out_msg + ssl->out_msglen - dig_signed;
@@ -3165,45 +3045,42 @@
          */
 
         mbedtls_pk_type_t sig_alg =
-            mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info );
+            mbedtls_ssl_get_ciphersuite_sig_pk_alg(ciphersuite_info);
 
         unsigned int sig_hash =
             mbedtls_ssl_tls12_get_preferred_hash_for_sig_alg(
-                ssl, mbedtls_ssl_sig_from_pk_alg( sig_alg ) );
+                ssl, mbedtls_ssl_sig_from_pk_alg(sig_alg));
 
-        mbedtls_md_type_t md_alg = mbedtls_ssl_md_alg_from_hash( sig_hash );
+        mbedtls_md_type_t md_alg = mbedtls_ssl_md_alg_from_hash(sig_hash);
 
         /*    For TLS 1.2, obey signature-hash-algorithm extension
          *    (RFC 5246, Sec. 7.4.1.4.1). */
-        if( sig_alg == MBEDTLS_PK_NONE || md_alg == MBEDTLS_MD_NONE )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
+        if (sig_alg == MBEDTLS_PK_NONE || md_alg == MBEDTLS_MD_NONE) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
             /* (... because we choose a cipher suite
              *      only if there is a matching hash.) */
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
 
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "pick hash algorithm %u for signing", (unsigned) md_alg ) );
+        MBEDTLS_SSL_DEBUG_MSG(3, ("pick hash algorithm %u for signing", (unsigned) md_alg));
 
         /*
          * 2.2: Compute the hash to be signed
          */
-        if( md_alg != MBEDTLS_MD_NONE )
-        {
-            ret = mbedtls_ssl_get_key_exchange_md_tls1_2( ssl, hash, &hashlen,
-                                                          dig_signed,
-                                                          dig_signed_len,
-                                                          md_alg );
-            if( ret != 0 )
-                return( ret );
-        }
-        else
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        if (md_alg != MBEDTLS_MD_NONE) {
+            ret = mbedtls_ssl_get_key_exchange_md_tls1_2(ssl, hash, &hashlen,
+                                                         dig_signed,
+                                                         dig_signed_len,
+                                                         md_alg);
+            if (ret != 0) {
+                return ret;
+            }
+        } else {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
 
-        MBEDTLS_SSL_DEBUG_BUF( 3, "parameters hash", hash, hashlen );
+        MBEDTLS_SSL_DEBUG_BUF(3, "parameters hash", hash, hashlen);
 
         /*
          * 2.3: Compute and add the signature
@@ -3224,37 +3101,34 @@
          *
          */
 
-        ssl->out_msg[ssl->out_msglen++] = mbedtls_ssl_hash_from_md_alg( md_alg );
-        ssl->out_msg[ssl->out_msglen++] = mbedtls_ssl_sig_from_pk_alg( sig_alg );
+        ssl->out_msg[ssl->out_msglen++] = mbedtls_ssl_hash_from_md_alg(md_alg);
+        ssl->out_msg[ssl->out_msglen++] = mbedtls_ssl_sig_from_pk_alg(sig_alg);
 
 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-        if( ssl->conf->f_async_sign_start != NULL )
-        {
-            ret = ssl->conf->f_async_sign_start( ssl,
-                                                 mbedtls_ssl_own_cert( ssl ),
-                                                 md_alg, hash, hashlen );
-            switch( ret )
-            {
-            case MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH:
-                /* act as if f_async_sign was null */
-                break;
-            case 0:
-                ssl->handshake->async_in_progress = 1;
-                return( ssl_resume_server_key_exchange( ssl, signature_len ) );
-            case MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS:
-                ssl->handshake->async_in_progress = 1;
-                return( MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS );
-            default:
-                MBEDTLS_SSL_DEBUG_RET( 1, "f_async_sign_start", ret );
-                return( ret );
+        if (ssl->conf->f_async_sign_start != NULL) {
+            ret = ssl->conf->f_async_sign_start(ssl,
+                                                mbedtls_ssl_own_cert(ssl),
+                                                md_alg, hash, hashlen);
+            switch (ret) {
+                case MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH:
+                    /* act as if f_async_sign was null */
+                    break;
+                case 0:
+                    ssl->handshake->async_in_progress = 1;
+                    return ssl_resume_server_key_exchange(ssl, signature_len);
+                case MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS:
+                    ssl->handshake->async_in_progress = 1;
+                    return MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS;
+                default:
+                    MBEDTLS_SSL_DEBUG_RET(1, "f_async_sign_start", ret);
+                    return ret;
             }
         }
 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
 
-        if( mbedtls_ssl_own_key( ssl ) == NULL )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no private key" ) );
-            return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
+        if (mbedtls_ssl_own_key(ssl) == NULL) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("got no private key"));
+            return MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED;
         }
 
         /* Append the signature to ssl->out_msg, leaving 2 bytes for the
@@ -3262,21 +3136,20 @@
          * after the call to ssl_prepare_server_key_exchange.
          * ssl_write_server_key_exchange also takes care of incrementing
          * ssl->out_msglen. */
-        if( ( ret = mbedtls_pk_sign( mbedtls_ssl_own_key( ssl ),
-                                     md_alg, hash, hashlen,
-                                     ssl->out_msg + ssl->out_msglen + 2,
-                                     out_buf_len - ssl->out_msglen - 2,
-                                     signature_len,
-                                     ssl->conf->f_rng,
-                                     ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_sign", ret );
-            return( ret );
+        if ((ret = mbedtls_pk_sign(mbedtls_ssl_own_key(ssl),
+                                   md_alg, hash, hashlen,
+                                   ssl->out_msg + ssl->out_msglen + 2,
+                                   out_buf_len - ssl->out_msglen - 2,
+                                   signature_len,
+                                   ssl->conf->f_rng,
+                                   ssl->conf->p_rng)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_pk_sign", ret);
+            return ret;
         }
     }
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED */
 
-    return( 0 );
+    return 0;
 }
 
 /* Prepare the ServerKeyExchange message and send it. For ciphersuites
@@ -3284,41 +3157,38 @@
  * way, if successful, move on to the next step in the SSL state
  * machine. */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl )
+static int ssl_write_server_key_exchange(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t signature_len = 0;
 #if defined(MBEDTLS_KEY_EXCHANGE_SOME_NON_PFS_ENABLED)
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
-                            ssl->handshake->ciphersuite_info;
+        ssl->handshake->ciphersuite_info;
 #endif /* MBEDTLS_KEY_EXCHANGE_SOME_NON_PFS_ENABLED */
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server key exchange" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write server key exchange"));
 
 #if defined(MBEDTLS_KEY_EXCHANGE_SOME_NON_PFS_ENABLED)
     /* Extract static ECDH parameters and abort if ServerKeyExchange
      * is not needed. */
-    if( mbedtls_ssl_ciphersuite_no_pfs( ciphersuite_info ) )
-    {
+    if (mbedtls_ssl_ciphersuite_no_pfs(ciphersuite_info)) {
         /* For suites involving ECDH, extract DH parameters
          * from certificate at this point. */
 #if defined(MBEDTLS_KEY_EXCHANGE_SOME_ECDH_ENABLED)
-        if( mbedtls_ssl_ciphersuite_uses_ecdh( ciphersuite_info ) )
-        {
-            ret = ssl_get_ecdh_params_from_cert( ssl );
-            if( ret != 0 )
-            {
-                MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_ecdh_params_from_cert", ret );
-                return( ret );
+        if (mbedtls_ssl_ciphersuite_uses_ecdh(ciphersuite_info)) {
+            ret = ssl_get_ecdh_params_from_cert(ssl);
+            if (ret != 0) {
+                MBEDTLS_SSL_DEBUG_RET(1, "ssl_get_ecdh_params_from_cert", ret);
+                return ret;
             }
         }
 #endif /* MBEDTLS_KEY_EXCHANGE_SOME_ECDH_ENABLED */
 
         /* Key exchanges not involving ephemeral keys don't use
          * ServerKeyExchange, so end here. */
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write server key exchange" ) );
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip write server key exchange"));
         ssl->state++;
-        return( 0 );
+        return 0;
     }
 #endif /* MBEDTLS_KEY_EXCHANGE_SOME_NON_PFS_ENABLED */
 
@@ -3326,44 +3196,41 @@
     defined(MBEDTLS_SSL_ASYNC_PRIVATE)
     /* If we have already prepared the message and there is an ongoing
      * signature operation, resume signing. */
-    if( ssl->handshake->async_in_progress != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "resuming signature operation" ) );
-        ret = ssl_resume_server_key_exchange( ssl, &signature_len );
-    }
-    else
+    if (ssl->handshake->async_in_progress != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("resuming signature operation"));
+        ret = ssl_resume_server_key_exchange(ssl, &signature_len);
+    } else
 #endif /* defined(MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED) &&
           defined(MBEDTLS_SSL_ASYNC_PRIVATE) */
     {
         /* ServerKeyExchange is needed. Prepare the message. */
-        ret = ssl_prepare_server_key_exchange( ssl, &signature_len );
+        ret = ssl_prepare_server_key_exchange(ssl, &signature_len);
     }
 
-    if( ret != 0 )
-    {
+    if (ret != 0) {
         /* If we're starting to write a new message, set ssl->out_msglen
          * to 0. But if we're resuming after an asynchronous message,
          * out_msglen is the amount of data written so far and mst be
          * preserved. */
-        if( ret == MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS )
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server key exchange (pending)" ) );
-        else
+        if (ret == MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS) {
+            MBEDTLS_SSL_DEBUG_MSG(2, ("<= write server key exchange (pending)"));
+        } else {
             ssl->out_msglen = 0;
-        return( ret );
+        }
+        return ret;
     }
 
     /* If there is a signature, write its length.
      * ssl_prepare_server_key_exchange already wrote the signature
      * itself at its proper place in the output buffer. */
 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_SERVER_SIGNATURE_ENABLED)
-    if( signature_len != 0 )
-    {
-        ssl->out_msg[ssl->out_msglen++] = MBEDTLS_BYTE_1( signature_len );
-        ssl->out_msg[ssl->out_msglen++] = MBEDTLS_BYTE_0( signature_len );
+    if (signature_len != 0) {
+        ssl->out_msg[ssl->out_msglen++] = MBEDTLS_BYTE_1(signature_len);
+        ssl->out_msg[ssl->out_msglen++] = MBEDTLS_BYTE_0(signature_len);
 
-        MBEDTLS_SSL_DEBUG_BUF( 3, "my signature",
-                               ssl->out_msg + ssl->out_msglen,
-                               signature_len );
+        MBEDTLS_SSL_DEBUG_BUF(3, "my signature",
+                              ssl->out_msg + ssl->out_msglen,
+                              signature_len);
 
         /* Skip over the already-written signature */
         ssl->out_msglen += signature_len;
@@ -3376,22 +3243,21 @@
 
     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 server key exchange" ) );
-    return( 0 );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write server key exchange"));
+    return 0;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_write_server_hello_done( mbedtls_ssl_context *ssl )
+static int ssl_write_server_hello_done(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server hello done" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write server hello done"));
 
     ssl->out_msglen  = 4;
     ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
@@ -3400,35 +3266,34 @@
     ssl->state++;
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
-        mbedtls_ssl_send_flight_completed( ssl );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+        mbedtls_ssl_send_flight_completed(ssl);
+    }
 #endif
 
-    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;
     }
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-    if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
-        ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret );
-        return( ret );
+    if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
+        (ret = mbedtls_ssl_flight_transmit(ssl)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_flight_transmit", ret);
+        return ret;
     }
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello done" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write server hello done"));
 
-    return( 0 );
+    return 0;
 }
 
 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) ||                       \
     defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_client_dh_public( mbedtls_ssl_context *ssl, unsigned char **p,
-                                       const unsigned char *end )
+static int ssl_parse_client_dh_public(mbedtls_ssl_context *ssl, unsigned char **p,
+                                      const unsigned char *end)
 {
     int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
     size_t n;
@@ -3436,32 +3301,29 @@
     /*
      * Receive G^Y mod P, premaster = (G^Y)^X mod P
      */
-    if( *p + 2 > end )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (*p + 2 > end) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    n = ( (*p)[0] << 8 ) | (*p)[1];
+    n = ((*p)[0] << 8) | (*p)[1];
     *p += 2;
 
-    if( *p + n > end )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (*p + n > end) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    if( ( ret = mbedtls_dhm_read_public( &ssl->handshake->dhm_ctx, *p, n ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_read_public", ret );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if ((ret = mbedtls_dhm_read_public(&ssl->handshake->dhm_ctx, *p, n)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_dhm_read_public", ret);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
     *p += n;
 
-    MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GY", &ssl->handshake->dhm_ctx.GY );
+    MBEDTLS_SSL_DEBUG_MPI(3, "DHM: GY", &ssl->handshake->dhm_ctx.GY);
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED ||
           MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
@@ -3471,120 +3333,113 @@
 
 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_resume_decrypt_pms( mbedtls_ssl_context *ssl,
-                                   unsigned char *peer_pms,
-                                   size_t *peer_pmslen,
-                                   size_t peer_pmssize )
+static int ssl_resume_decrypt_pms(mbedtls_ssl_context *ssl,
+                                  unsigned char *peer_pms,
+                                  size_t *peer_pmslen,
+                                  size_t peer_pmssize)
 {
-    int ret = ssl->conf->f_async_resume( ssl,
-                                         peer_pms, peer_pmslen, peer_pmssize );
-    if( ret != MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS )
-    {
+    int ret = ssl->conf->f_async_resume(ssl,
+                                        peer_pms, peer_pmslen, peer_pmssize);
+    if (ret != MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS) {
         ssl->handshake->async_in_progress = 0;
-        mbedtls_ssl_set_async_operation_data( ssl, NULL );
+        mbedtls_ssl_set_async_operation_data(ssl, NULL);
     }
-    MBEDTLS_SSL_DEBUG_RET( 2, "ssl_decrypt_encrypted_pms", ret );
-    return( ret );
+    MBEDTLS_SSL_DEBUG_RET(2, "ssl_decrypt_encrypted_pms", ret);
+    return ret;
 }
 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_decrypt_encrypted_pms( mbedtls_ssl_context *ssl,
-                                      const unsigned char *p,
-                                      const unsigned char *end,
-                                      unsigned char *peer_pms,
-                                      size_t *peer_pmslen,
-                                      size_t peer_pmssize )
+static int ssl_decrypt_encrypted_pms(mbedtls_ssl_context *ssl,
+                                     const unsigned char *p,
+                                     const unsigned char *end,
+                                     unsigned char *peer_pms,
+                                     size_t *peer_pmslen,
+                                     size_t peer_pmssize)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    mbedtls_x509_crt *own_cert = mbedtls_ssl_own_cert( ssl );
-    if( own_cert == NULL ) {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no local certificate" ) );
-        return( MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE );
+    mbedtls_x509_crt *own_cert = mbedtls_ssl_own_cert(ssl);
+    if (own_cert == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("got no local certificate"));
+        return MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE;
     }
     mbedtls_pk_context *public_key = &own_cert->pk;
-    mbedtls_pk_context *private_key = mbedtls_ssl_own_key( ssl );
-    size_t len = mbedtls_pk_get_len( public_key );
+    mbedtls_pk_context *private_key = mbedtls_ssl_own_key(ssl);
+    size_t len = mbedtls_pk_get_len(public_key);
 
 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
     /* If we have already started decoding the message and there is an ongoing
      * decryption operation, resume signing. */
-    if( ssl->handshake->async_in_progress != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "resuming decryption operation" ) );
-        return( ssl_resume_decrypt_pms( ssl,
-                                        peer_pms, peer_pmslen, peer_pmssize ) );
+    if (ssl->handshake->async_in_progress != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("resuming decryption operation"));
+        return ssl_resume_decrypt_pms(ssl,
+                                      peer_pms, peer_pmslen, peer_pmssize);
     }
 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
 
     /*
      * Prepare to decrypt the premaster using own private RSA key
      */
-    if ( p + 2 > end ) {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (p + 2 > end) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
-    if( *p++ != MBEDTLS_BYTE_1( len ) ||
-        *p++ != MBEDTLS_BYTE_0( len ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (*p++ != MBEDTLS_BYTE_1(len) ||
+        *p++ != MBEDTLS_BYTE_0(len)) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    if( p + len != end )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (p + len != end) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
     /*
      * Decrypt the premaster secret
      */
 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    if( ssl->conf->f_async_decrypt_start != NULL )
-    {
-        ret = ssl->conf->f_async_decrypt_start( ssl,
-                                                mbedtls_ssl_own_cert( ssl ),
-                                                p, len );
-        switch( ret )
-        {
-        case MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH:
-            /* act as if f_async_decrypt_start was null */
-            break;
-        case 0:
-            ssl->handshake->async_in_progress = 1;
-            return( ssl_resume_decrypt_pms( ssl,
-                                            peer_pms,
-                                            peer_pmslen,
-                                            peer_pmssize ) );
-        case MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS:
-            ssl->handshake->async_in_progress = 1;
-            return( MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS );
-        default:
-            MBEDTLS_SSL_DEBUG_RET( 1, "f_async_decrypt_start", ret );
-            return( ret );
+    if (ssl->conf->f_async_decrypt_start != NULL) {
+        ret = ssl->conf->f_async_decrypt_start(ssl,
+                                               mbedtls_ssl_own_cert(ssl),
+                                               p, len);
+        switch (ret) {
+            case MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH:
+                /* act as if f_async_decrypt_start was null */
+                break;
+            case 0:
+                ssl->handshake->async_in_progress = 1;
+                return ssl_resume_decrypt_pms(ssl,
+                                              peer_pms,
+                                              peer_pmslen,
+                                              peer_pmssize);
+            case MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS:
+                ssl->handshake->async_in_progress = 1;
+                return MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS;
+            default:
+                MBEDTLS_SSL_DEBUG_RET(1, "f_async_decrypt_start", ret);
+                return ret;
         }
     }
 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
 
-    if( ! mbedtls_pk_can_do( private_key, MBEDTLS_PK_RSA ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no RSA private key" ) );
-        return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
+    if (!mbedtls_pk_can_do(private_key, MBEDTLS_PK_RSA)) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("got no RSA private key"));
+        return MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED;
     }
 
-    ret = mbedtls_pk_decrypt( private_key, p, len,
-                              peer_pms, peer_pmslen, peer_pmssize,
-                              ssl->conf->f_rng, ssl->conf->p_rng );
-    return( ret );
+    ret = mbedtls_pk_decrypt(private_key, p, len,
+                             peer_pms, peer_pmslen, peer_pmssize,
+                             ssl->conf->f_rng, ssl->conf->p_rng);
+    return ret;
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_encrypted_pms( mbedtls_ssl_context *ssl,
-                                    const unsigned char *p,
-                                    const unsigned char *end,
-                                    size_t pms_offset )
+static int ssl_parse_encrypted_pms(mbedtls_ssl_context *ssl,
+                                   const unsigned char *p,
+                                   const unsigned char *end,
+                                   size_t pms_offset)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char *pms = ssl->handshake->premaster + pms_offset;
@@ -3604,18 +3459,19 @@
     peer_pms[0] = peer_pms[1] = ~0;
     peer_pmslen = 0;
 
-    ret = ssl_decrypt_encrypted_pms( ssl, p, end,
-                                     peer_pms,
-                                     &peer_pmslen,
-                                     sizeof( peer_pms ) );
+    ret = ssl_decrypt_encrypted_pms(ssl, p, end,
+                                    peer_pms,
+                                    &peer_pmslen,
+                                    sizeof(peer_pms));
 
 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-    if ( ret == MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS )
-        return( ret );
+    if (ret == MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS) {
+        return ret;
+    }
 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
 
-    mbedtls_ssl_write_version( ver, ssl->conf->transport,
-                               ssl->session_negotiate->tls_version );
+    mbedtls_ssl_write_version(ver, ssl->conf->transport,
+                              ssl->session_negotiate->tls_version);
 
     /* Avoid data-dependent branches while checking for invalid
      * padding, to protect against timing-based Bleichenbacher-type
@@ -3626,7 +3482,7 @@
     diff |= peer_pms[1] ^ ver[1];
 
     /* mask = diff ? 0xff : 0x00 using bit operations to avoid branches */
-    mask = mbedtls_ct_uint_mask( diff );
+    mask = mbedtls_ct_uint_mask(diff);
 
     /*
      * Protection against Bleichenbacher's attack: invalid PKCS#1 v1.5 padding
@@ -3637,101 +3493,94 @@
      * successful. In particular, always generate the fake premaster secret,
      * regardless of whether it will ultimately influence the output or not.
      */
-    ret = ssl->conf->f_rng( ssl->conf->p_rng, fake_pms, sizeof( fake_pms ) );
-    if( ret != 0 )
-    {
+    ret = ssl->conf->f_rng(ssl->conf->p_rng, fake_pms, sizeof(fake_pms));
+    if (ret != 0) {
         /* It's ok to abort on an RNG failure, since this does not reveal
          * anything about the RSA decryption. */
-        return( ret );
+        return ret;
     }
 
 #if defined(MBEDTLS_SSL_DEBUG_ALL)
-    if( diff != 0 )
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
+    if (diff != 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange message"));
+    }
 #endif
 
-    if( sizeof( ssl->handshake->premaster ) < pms_offset ||
-        sizeof( ssl->handshake->premaster ) - pms_offset < 48 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+    if (sizeof(ssl->handshake->premaster) < pms_offset ||
+        sizeof(ssl->handshake->premaster) - pms_offset < 48) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("should never happen"));
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
     ssl->handshake->pmslen = 48;
 
     /* Set pms to either the true or the fake PMS, without
      * data-dependent branches. */
-    for( i = 0; i < ssl->handshake->pmslen; i++ )
-        pms[i] = ( mask & fake_pms[i] ) | ( (~mask) & peer_pms[i] );
+    for (i = 0; i < ssl->handshake->pmslen; i++) {
+        pms[i] = (mask & fake_pms[i]) | ((~mask) & peer_pms[i]);
+    }
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED ||
           MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_client_psk_identity( mbedtls_ssl_context *ssl, unsigned char **p,
-                                          const unsigned char *end )
+static int ssl_parse_client_psk_identity(mbedtls_ssl_context *ssl, unsigned char **p,
+                                         const unsigned char *end)
 {
     int ret = 0;
     uint16_t n;
 
-    if( ssl_conf_has_psk_or_cb( ssl->conf ) == 0 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no pre-shared key" ) );
-        return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
+    if (ssl_conf_has_psk_or_cb(ssl->conf) == 0) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("got no pre-shared key"));
+        return MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED;
     }
 
     /*
      * Receive client pre-shared key identity name
      */
-    if( end - *p < 2 )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (end - *p < 2) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    n = ( (*p)[0] << 8 ) | (*p)[1];
+    n = ((*p)[0] << 8) | (*p)[1];
     *p += 2;
 
-    if( n == 0 || n > end - *p )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (n == 0 || n > end - *p) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    if( ssl->conf->f_psk != NULL )
-    {
-        if( ssl->conf->f_psk( ssl->conf->p_psk, ssl, *p, n ) != 0 )
+    if (ssl->conf->f_psk != NULL) {
+        if (ssl->conf->f_psk(ssl->conf->p_psk, ssl, *p, n) != 0) {
             ret = MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY;
-    }
-    else
-    {
+        }
+    } else {
         /* Identity is not a big secret since clients send it in the clear,
          * but treat it carefully anyway, just in case */
-        if( n != ssl->conf->psk_identity_len ||
-            mbedtls_ct_memcmp( ssl->conf->psk_identity, *p, n ) != 0 )
-        {
+        if (n != ssl->conf->psk_identity_len ||
+            mbedtls_ct_memcmp(ssl->conf->psk_identity, *p, n) != 0) {
             ret = MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY;
         }
     }
 
-    if( ret == MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY )
-    {
-        MBEDTLS_SSL_DEBUG_BUF( 3, "Unknown PSK identity", *p, n );
-        mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
-                                        MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY );
-        return( MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY );
+    if (ret == MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY) {
+        MBEDTLS_SSL_DEBUG_BUF(3, "Unknown PSK identity", *p, n);
+        mbedtls_ssl_send_alert_message(ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+                                       MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY);
+        return MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY;
     }
 
     *p += n;
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl )
+static int ssl_parse_client_key_exchange(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
@@ -3739,282 +3588,244 @@
 
     ciphersuite_info = ssl->handshake->ciphersuite_info;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client key exchange" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse client key exchange"));
 
 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE) && \
-    ( defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \
-      defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) )
-    if( ( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
-          ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA ) &&
-        ( ssl->handshake->async_in_progress != 0 ) )
-    {
+    (defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \
+    defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED))
+    if ((ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
+         ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA) &&
+        (ssl->handshake->async_in_progress != 0)) {
         /* We've already read a record and there is an asynchronous
          * operation in progress to decrypt it. So skip reading the
          * record. */
-        MBEDTLS_SSL_DEBUG_MSG( 3, ( "will resume decryption of previously-read record" ) );
-    }
-    else
+        MBEDTLS_SSL_DEBUG_MSG(3, ("will resume decryption of previously-read record"));
+    } else
 #endif
-    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;
     }
 
-    p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
+    p = ssl->in_msg + mbedtls_ssl_hs_hdr_len(ssl);
     end = ssl->in_msg + ssl->in_hslen;
 
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+    if (ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange message"));
+        return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
     }
 
-    if( ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+    if (ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange message"));
+        return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
     }
 
 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA )
-    {
-        if( ( ret = ssl_parse_client_dh_public( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_dh_public" ), ret );
-            return( ret );
+    if (ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA) {
+        if ((ret = ssl_parse_client_dh_public(ssl, &p, end)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, ("ssl_parse_client_dh_public"), ret);
+            return ret;
         }
 
-        if( p != end )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) );
-            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+        if (p != end) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange"));
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
 
-        if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx,
-                                      ssl->handshake->premaster,
-                                      MBEDTLS_PREMASTER_SIZE,
-                                     &ssl->handshake->pmslen,
-                                      ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret );
-            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+        if ((ret = mbedtls_dhm_calc_secret(&ssl->handshake->dhm_ctx,
+                                           ssl->handshake->premaster,
+                                           MBEDTLS_PREMASTER_SIZE,
+                                           &ssl->handshake->pmslen,
+                                           ssl->conf->f_rng, ssl->conf->p_rng)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_dhm_calc_secret", ret);
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
 
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K  );
-    }
-    else
+        MBEDTLS_SSL_DEBUG_MPI(3, "DHM: K ", &ssl->handshake->dhm_ctx.K);
+    } else
 #endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) ||                     \
     defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) ||                   \
     defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) ||                      \
     defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA ||
+    if (ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA ||
         ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ||
         ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA ||
-        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA )
-    {
+        ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA) {
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-        size_t data_len = (size_t)( *p++ );
-        size_t buf_len = (size_t)( end - p );
+        size_t data_len = (size_t) (*p++);
+        size_t buf_len = (size_t) (end - p);
         psa_status_t status = PSA_ERROR_GENERIC_ERROR;
         mbedtls_ssl_handshake_params *handshake = ssl->handshake;
 
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "Read the peer's public key." ) );
+        MBEDTLS_SSL_DEBUG_MSG(1, ("Read the peer's public key."));
 
         /*
          * We must have at least two bytes (1 for length, at least 1 for data)
          */
-        if( buf_len < 2 )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Invalid buffer length" ) );
-            return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
+        if (buf_len < 2) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("Invalid buffer length"));
+            return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
         }
 
-        if( data_len < 1 || data_len > buf_len )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "Invalid data length" ) );
-            return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
+        if (data_len < 1 || data_len > buf_len) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("Invalid data length"));
+            return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
         }
 
         /* Store peer's ECDH public key. */
-        memcpy( handshake->ecdh_psa_peerkey, p, data_len );
+        memcpy(handshake->ecdh_psa_peerkey, p, data_len);
         handshake->ecdh_psa_peerkey_len = data_len;
 
         /* Compute ECDH shared secret. */
         status = psa_raw_key_agreement(
-                    PSA_ALG_ECDH, handshake->ecdh_psa_privkey,
-                    handshake->ecdh_psa_peerkey, handshake->ecdh_psa_peerkey_len,
-                    handshake->premaster, sizeof( handshake->premaster ),
-                    &handshake->pmslen );
-        if( status != PSA_SUCCESS )
-        {
-            ret = psa_ssl_status_to_mbedtls( status );
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_raw_key_agreement", ret );
-            if( handshake->ecdh_psa_privkey_is_external == 0 )
-                (void) psa_destroy_key( handshake->ecdh_psa_privkey );
+            PSA_ALG_ECDH, handshake->ecdh_psa_privkey,
+            handshake->ecdh_psa_peerkey, handshake->ecdh_psa_peerkey_len,
+            handshake->premaster, sizeof(handshake->premaster),
+            &handshake->pmslen);
+        if (status != PSA_SUCCESS) {
+            ret = psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_raw_key_agreement", ret);
+            if (handshake->ecdh_psa_privkey_is_external == 0) {
+                (void) psa_destroy_key(handshake->ecdh_psa_privkey);
+            }
             handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
-            return( ret );
+            return ret;
         }
 
-        if( handshake->ecdh_psa_privkey_is_external == 0 )
-        {
-            status = psa_destroy_key( handshake->ecdh_psa_privkey );
+        if (handshake->ecdh_psa_privkey_is_external == 0) {
+            status = psa_destroy_key(handshake->ecdh_psa_privkey);
 
-            if( status != PSA_SUCCESS )
-            {
-                ret = psa_ssl_status_to_mbedtls( status );
-                MBEDTLS_SSL_DEBUG_RET( 1, "psa_destroy_key", ret );
-                return( ret );
+            if (status != PSA_SUCCESS) {
+                ret = psa_ssl_status_to_mbedtls(status);
+                MBEDTLS_SSL_DEBUG_RET(1, "psa_destroy_key", ret);
+                return ret;
             }
         }
         handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
 #else
-        if( ( ret = mbedtls_ecdh_read_public( &ssl->handshake->ecdh_ctx,
-                                      p, end - p) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_read_public", ret );
-            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+        if ((ret = mbedtls_ecdh_read_public(&ssl->handshake->ecdh_ctx,
+                                            p, end - p)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ecdh_read_public", ret);
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
 
-        MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                MBEDTLS_DEBUG_ECDH_QP );
+        MBEDTLS_SSL_DEBUG_ECDH(3, &ssl->handshake->ecdh_ctx,
+                               MBEDTLS_DEBUG_ECDH_QP);
 
-        if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx,
-                                      &ssl->handshake->pmslen,
-                                       ssl->handshake->premaster,
-                                       MBEDTLS_MPI_MAX_SIZE,
-                                       ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret );
-            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+        if ((ret = mbedtls_ecdh_calc_secret(&ssl->handshake->ecdh_ctx,
+                                            &ssl->handshake->pmslen,
+                                            ssl->handshake->premaster,
+                                            MBEDTLS_MPI_MAX_SIZE,
+                                            ssl->conf->f_rng, ssl->conf->p_rng)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ecdh_calc_secret", ret);
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
 
-        MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                MBEDTLS_DEBUG_ECDH_Z );
+        MBEDTLS_SSL_DEBUG_ECDH(3, &ssl->handshake->ecdh_ctx,
+                               MBEDTLS_DEBUG_ECDH_Z);
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-    }
-    else
+    } else
 #endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
           MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ||
           MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED ||
           MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
 #if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK )
-    {
-        if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
-            return( ret );
+    if (ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK) {
+        if ((ret = ssl_parse_client_psk_identity(ssl, &p, end)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, ("ssl_parse_client_psk_identity"), ret);
+            return ret;
         }
 
-        if( p != end )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) );
-            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+        if (p != end) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange"));
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
 
 #if !defined(MBEDTLS_USE_PSA_CRYPTO)
-        if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
-                        ciphersuite_info->key_exchange ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
-            return( ret );
+        if ((ret = mbedtls_ssl_psk_derive_premaster(ssl,
+                                                    ciphersuite_info->key_exchange)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_psk_derive_premaster", ret);
+            return ret;
         }
 #endif /* !MBEDTLS_USE_PSA_CRYPTO */
-    }
-    else
+    } else
 #endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
-    {
+    if (ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK) {
 #if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
-        if ( ssl->handshake->async_in_progress != 0 )
-        {
+        if (ssl->handshake->async_in_progress != 0) {
             /* There is an asynchronous operation in progress to
              * decrypt the encrypted premaster secret, so skip
              * directly to resuming this operation. */
-            MBEDTLS_SSL_DEBUG_MSG( 3, ( "PSK identity already parsed" ) );
+            MBEDTLS_SSL_DEBUG_MSG(3, ("PSK identity already parsed"));
             /* Update p to skip the PSK identity. ssl_parse_encrypted_pms
              * won't actually use it, but maintain p anyway for robustness. */
             p += ssl->conf->psk_identity_len + 2;
-        }
-        else
+        } else
 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
-        if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
-            return( ret );
+        if ((ret = ssl_parse_client_psk_identity(ssl, &p, end)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, ("ssl_parse_client_psk_identity"), ret);
+            return ret;
         }
 
-        if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 2 ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_encrypted_pms" ), ret );
-            return( ret );
+        if ((ret = ssl_parse_encrypted_pms(ssl, p, end, 2)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, ("ssl_parse_encrypted_pms"), ret);
+            return ret;
         }
 
 #if !defined(MBEDTLS_USE_PSA_CRYPTO)
-        if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
-                        ciphersuite_info->key_exchange ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
-            return( ret );
+        if ((ret = mbedtls_ssl_psk_derive_premaster(ssl,
+                                                    ciphersuite_info->key_exchange)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_psk_derive_premaster", ret);
+            return ret;
         }
 #endif /* !MBEDTLS_USE_PSA_CRYPTO */
-    }
-    else
+    } else
 #endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK )
-    {
-        if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
-            return( ret );
+    if (ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK) {
+        if ((ret = ssl_parse_client_psk_identity(ssl, &p, end)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, ("ssl_parse_client_psk_identity"), ret);
+            return ret;
         }
-        if( ( ret = ssl_parse_client_dh_public( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_dh_public" ), ret );
-            return( ret );
+        if ((ret = ssl_parse_client_dh_public(ssl, &p, end)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, ("ssl_parse_client_dh_public"), ret);
+            return ret;
         }
 
-        if( p != end )
-        {
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) );
-            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+        if (p != end) {
+            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client key exchange"));
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
         unsigned char *pms = ssl->handshake->premaster;
-        unsigned char *pms_end = pms + sizeof( ssl->handshake->premaster );
+        unsigned char *pms_end = pms + sizeof(ssl->handshake->premaster);
         size_t pms_len;
 
         /* Write length only when we know the actual value */
-        if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx,
-                                      pms + 2, pms_end - ( pms + 2 ), &pms_len,
-                                      ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret );
-            return( ret );
+        if ((ret = mbedtls_dhm_calc_secret(&ssl->handshake->dhm_ctx,
+                                           pms + 2, pms_end - (pms + 2), &pms_len,
+                                           ssl->conf->f_rng, ssl->conf->p_rng)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_dhm_calc_secret", ret);
+            return ret;
         }
-        MBEDTLS_PUT_UINT16_BE( pms_len, pms, 0 );
+        MBEDTLS_PUT_UINT16_BE(pms_len, pms, 0);
         pms += 2 + pms_len;
 
-        MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K  );
+        MBEDTLS_SSL_DEBUG_MPI(3, "DHM: K ", &ssl->handshake->dhm_ctx.K);
 #else
-        if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
-                        ciphersuite_info->key_exchange ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
-            return( ret );
+        if ((ret = mbedtls_ssl_psk_derive_premaster(ssl,
+                                                    ciphersuite_info->key_exchange)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_psk_derive_premaster", ret);
+            return ret;
         }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-    }
-    else
+    } else
 #endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
-    {
+    if (ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK) {
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
         psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
         psa_status_t destruction_status = PSA_ERROR_CORRUPTION_DETECTED;
@@ -4022,36 +3833,34 @@
 
         mbedtls_ssl_handshake_params *handshake = ssl->handshake;
 
-        if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
-            psa_destroy_key( handshake->ecdh_psa_privkey );
+        if ((ret = ssl_parse_client_psk_identity(ssl, &p, end)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, ("ssl_parse_client_psk_identity"), ret);
+            psa_destroy_key(handshake->ecdh_psa_privkey);
             handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
-            return( ret );
+            return ret;
         }
 
         /* Keep a copy of the peer's public key */
-        if( p >= end )
-        {
-            psa_destroy_key( handshake->ecdh_psa_privkey );
+        if (p >= end) {
+            psa_destroy_key(handshake->ecdh_psa_privkey);
             handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
-            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
 
         ecpoint_len = *(p++);
-        if( (size_t)( end - p ) < ecpoint_len ) {
-            psa_destroy_key( handshake->ecdh_psa_privkey );
+        if ((size_t) (end - p) < ecpoint_len) {
+            psa_destroy_key(handshake->ecdh_psa_privkey);
             handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
-            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
 
-        if( ecpoint_len > sizeof( handshake->ecdh_psa_peerkey ) ) {
-            psa_destroy_key( handshake->ecdh_psa_privkey );
+        if (ecpoint_len > sizeof(handshake->ecdh_psa_peerkey)) {
+            psa_destroy_key(handshake->ecdh_psa_privkey);
             handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
-            return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
+            return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
         }
 
-        memcpy( handshake->ecdh_psa_peerkey, p, ecpoint_len );
+        memcpy(handshake->ecdh_psa_peerkey, p, ecpoint_len);
         handshake->ecdh_psa_peerkey_len = ecpoint_len;
         p += ecpoint_len;
 
@@ -4062,146 +3871,133 @@
          * - the PSK itself
          */
         unsigned char *psm = ssl->handshake->premaster;
-        const unsigned char* const psm_end =
-                    psm + sizeof( ssl->handshake->premaster );
+        const unsigned char * const psm_end =
+            psm + sizeof(ssl->handshake->premaster);
         /* uint16 to store length (in octets) of the ECDH computation */
         const size_t zlen_size = 2;
         size_t zlen = 0;
 
         /* Compute ECDH shared secret. */
-        status = psa_raw_key_agreement( PSA_ALG_ECDH,
-                                        handshake->ecdh_psa_privkey,
-                                        handshake->ecdh_psa_peerkey,
-                                        handshake->ecdh_psa_peerkey_len,
-                                        psm + zlen_size,
-                                        psm_end - ( psm + zlen_size ),
-                                        &zlen );
+        status = psa_raw_key_agreement(PSA_ALG_ECDH,
+                                       handshake->ecdh_psa_privkey,
+                                       handshake->ecdh_psa_peerkey,
+                                       handshake->ecdh_psa_peerkey_len,
+                                       psm + zlen_size,
+                                       psm_end - (psm + zlen_size),
+                                       &zlen);
 
-        destruction_status = psa_destroy_key( handshake->ecdh_psa_privkey );
+        destruction_status = psa_destroy_key(handshake->ecdh_psa_privkey);
         handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
 
-        if( status != PSA_SUCCESS )
-            return( psa_ssl_status_to_mbedtls( status ) );
-        else if( destruction_status != PSA_SUCCESS )
-            return( psa_ssl_status_to_mbedtls( destruction_status ) );
+        if (status != PSA_SUCCESS) {
+            return psa_ssl_status_to_mbedtls(status);
+        } else if (destruction_status != PSA_SUCCESS) {
+            return psa_ssl_status_to_mbedtls(destruction_status);
+        }
 
         /* Write the ECDH computation length before the ECDH computation */
-        MBEDTLS_PUT_UINT16_BE( zlen, psm, 0 );
+        MBEDTLS_PUT_UINT16_BE(zlen, psm, 0);
         psm += zlen_size + zlen;
 
 #else /* MBEDTLS_USE_PSA_CRYPTO */
-        if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
-            return( ret );
+        if ((ret = ssl_parse_client_psk_identity(ssl, &p, end)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, ("ssl_parse_client_psk_identity"), ret);
+            return ret;
         }
 
-        if( ( ret = mbedtls_ecdh_read_public( &ssl->handshake->ecdh_ctx,
-                                       p, end - p ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_read_public", ret );
-            return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+        if ((ret = mbedtls_ecdh_read_public(&ssl->handshake->ecdh_ctx,
+                                            p, end - p)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ecdh_read_public", ret);
+            return MBEDTLS_ERR_SSL_DECODE_ERROR;
         }
 
-        MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
-                                MBEDTLS_DEBUG_ECDH_QP );
+        MBEDTLS_SSL_DEBUG_ECDH(3, &ssl->handshake->ecdh_ctx,
+                               MBEDTLS_DEBUG_ECDH_QP);
 
-        if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
-                        ciphersuite_info->key_exchange ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
-            return( ret );
+        if ((ret = mbedtls_ssl_psk_derive_premaster(ssl,
+                                                    ciphersuite_info->key_exchange)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_psk_derive_premaster", ret);
+            return ret;
         }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-    }
-    else
+    } else
 #endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA )
-    {
-        if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 0 ) ) != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_parse_encrypted_pms_secret" ), ret );
-            return( ret );
+    if (ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA) {
+        if ((ret = ssl_parse_encrypted_pms(ssl, p, end, 0)) != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, ("ssl_parse_parse_encrypted_pms_secret"), ret);
+            return ret;
         }
-    }
-    else
+    } else
 #endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
-    if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
-    {
+    if (ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE) {
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-        if( ( ret = mbedtls_psa_ecjpake_read_round(
-                        &ssl->handshake->psa_pake_ctx, p, end - p,
-                        MBEDTLS_ECJPAKE_ROUND_TWO ) ) != 0 )
-        {
-            psa_destroy_key( ssl->handshake->psa_pake_password );
-            psa_pake_abort( &ssl->handshake->psa_pake_ctx );
+        if ((ret = mbedtls_psa_ecjpake_read_round(
+                 &ssl->handshake->psa_pake_ctx, p, end - p,
+                 MBEDTLS_ECJPAKE_ROUND_TWO)) != 0) {
+            psa_destroy_key(ssl->handshake->psa_pake_password);
+            psa_pake_abort(&ssl->handshake->psa_pake_ctx);
 
-            MBEDTLS_SSL_DEBUG_RET( 1, "psa_pake_input round two", ret );
-            return( ret );
+            MBEDTLS_SSL_DEBUG_RET(1, "psa_pake_input round two", ret);
+            return ret;
         }
 #else
-        ret = mbedtls_ecjpake_read_round_two( &ssl->handshake->ecjpake_ctx,
-                                              p, end - p );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_two", ret );
-            return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        ret = mbedtls_ecjpake_read_round_two(&ssl->handshake->ecjpake_ctx,
+                                             p, end - p);
+        if (ret != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ecjpake_read_round_two", ret);
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
 
-        ret = mbedtls_ecjpake_derive_secret( &ssl->handshake->ecjpake_ctx,
-                ssl->handshake->premaster, 32, &ssl->handshake->pmslen,
-                ssl->conf->f_rng, ssl->conf->p_rng );
-        if( ret != 0 )
-        {
-            MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_derive_secret", ret );
-            return( ret );
+        ret = mbedtls_ecjpake_derive_secret(&ssl->handshake->ecjpake_ctx,
+                                            ssl->handshake->premaster, 32, &ssl->handshake->pmslen,
+                                            ssl->conf->f_rng, ssl->conf->p_rng);
+        if (ret != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ecjpake_derive_secret", ret);
+            return ret;
         }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
-    }
-    else
+    } else
 #endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
     {
-        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( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
-        return( ret );
+    if ((ret = mbedtls_ssl_derive_keys(ssl)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_derive_keys", ret);
+        return ret;
     }
 
     ssl->state++;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client key exchange" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= parse client key exchange"));
 
-    return( 0 );
+    return 0;
 }
 
 #if !defined(MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl )
+static int ssl_parse_certificate_verify(mbedtls_ssl_context *ssl)
 {
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
         ssl->handshake->ciphersuite_info;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate verify" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse certificate verify"));
 
-    if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
+    if (!mbedtls_ssl_ciphersuite_cert_req_allowed(ciphersuite_info)) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip parse certificate verify"));
         ssl->state++;
-        return( 0 );
+        return 0;
     }
 
-    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;
 }
 #else /* !MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl )
+static int ssl_parse_certificate_verify(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
     size_t i, sig_len;
@@ -4212,60 +4008,54 @@
     mbedtls_md_type_t md_alg;
     const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
         ssl->handshake->ciphersuite_info;
-    mbedtls_pk_context * peer_pk;
+    mbedtls_pk_context *peer_pk;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate verify" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse certificate verify"));
 
-    if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
+    if (!mbedtls_ssl_ciphersuite_cert_req_allowed(ciphersuite_info)) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip parse certificate verify"));
         ssl->state++;
-        return( 0 );
+        return 0;
     }
 
 #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    if( ssl->session_negotiate->peer_cert == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
+    if (ssl->session_negotiate->peer_cert == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip parse certificate verify"));
         ssl->state++;
-        return( 0 );
+        return 0;
     }
 #else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if( ssl->session_negotiate->peer_cert_digest == NULL )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
+    if (ssl->session_negotiate->peer_cert_digest == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(2, ("<= skip parse certificate verify"));
         ssl->state++;
-        return( 0 );
+        return 0;
     }
 #endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
 
     /* Read the message without adding it to the checksum */
-    ret = mbedtls_ssl_read_record( ssl, 0 /* no checksum update */ );
-    if( 0 != ret )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ssl_read_record" ), ret );
-        return( ret );
+    ret = mbedtls_ssl_read_record(ssl, 0 /* no checksum update */);
+    if (0 != ret) {
+        MBEDTLS_SSL_DEBUG_RET(1, ("mbedtls_ssl_read_record"), ret);
+        return ret;
     }
 
     ssl->state++;
 
     /* Process the message contents */
-    if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ||
-        ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE_VERIFY )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
-        return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+    if (ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ||
+        ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE_VERIFY) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate verify message"));
+        return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
     }
 
-    i = mbedtls_ssl_hs_hdr_len( ssl );
+    i = mbedtls_ssl_hs_hdr_len(ssl);
 
 #if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
     peer_pk = &ssl->handshake->peer_pubkey;
 #else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if( ssl->session_negotiate->peer_cert == NULL )
-    {
+    if (ssl->session_negotiate->peer_cert == NULL) {
         /* Should never happen */
-        return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
     peer_pk = &ssl->session_negotiate->peer_cert->pk;
 #endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
@@ -4276,27 +4066,26 @@
      *     opaque signature<0..2^16-1>;
      *  } DigitallySigned;
      */
-    if( i + 2 > ssl->in_hslen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (i + 2 > ssl->in_hslen) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate verify message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
     /*
      * Hash
      */
-    md_alg = mbedtls_ssl_md_alg_from_hash( ssl->in_msg[i] );
+    md_alg = mbedtls_ssl_md_alg_from_hash(ssl->in_msg[i]);
 
-    if( md_alg == MBEDTLS_MD_NONE || mbedtls_ssl_set_calc_verify_md( ssl, ssl->in_msg[i] ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "peer not adhering to requested sig_alg"
-                            " for verify message" ) );
-        return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
+    if (md_alg == MBEDTLS_MD_NONE || mbedtls_ssl_set_calc_verify_md(ssl, ssl->in_msg[i])) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("peer not adhering to requested sig_alg"
+                                  " for verify message"));
+        return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
     }
 
 #if !defined(MBEDTLS_MD_SHA1)
-    if( MBEDTLS_MD_SHA1 == md_alg )
+    if (MBEDTLS_MD_SHA1 == md_alg) {
         hash_start += 16;
+    }
 #endif
 
     /* Info from md_alg will be used instead */
@@ -4307,71 +4096,66 @@
     /*
      * Signature
      */
-    if( ( pk_alg = mbedtls_ssl_pk_alg_from_sig( ssl->in_msg[i] ) )
-                    == MBEDTLS_PK_NONE )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "peer not adhering to requested sig_alg"
-                            " for verify message" ) );
-        return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
+    if ((pk_alg = mbedtls_ssl_pk_alg_from_sig(ssl->in_msg[i]))
+        == MBEDTLS_PK_NONE) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("peer not adhering to requested sig_alg"
+                                  " for verify message"));
+        return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
     }
 
     /*
      * Check the certificate's key type matches the signature alg
      */
-    if( !mbedtls_pk_can_do( peer_pk, pk_alg ) )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "sig_alg doesn't match cert key" ) );
-        return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
+    if (!mbedtls_pk_can_do(peer_pk, pk_alg)) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("sig_alg doesn't match cert key"));
+        return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
     }
 
     i++;
 
-    if( i + 2 > ssl->in_hslen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (i + 2 > ssl->in_hslen) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate verify message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    sig_len = ( ssl->in_msg[i] << 8 ) | ssl->in_msg[i+1];
+    sig_len = (ssl->in_msg[i] << 8) | ssl->in_msg[i+1];
     i += 2;
 
-    if( i + sig_len != ssl->in_hslen )
-    {
-        MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
-        return( MBEDTLS_ERR_SSL_DECODE_ERROR );
+    if (i + sig_len != ssl->in_hslen) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad certificate verify message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
     /* Calculate hash and verify signature */
     {
         size_t dummy_hlen;
-        ssl->handshake->calc_verify( ssl, hash, &dummy_hlen );
+        ssl->handshake->calc_verify(ssl, hash, &dummy_hlen);
     }
 
-    if( ( ret = mbedtls_pk_verify( peer_pk,
-                           md_alg, hash_start, hashlen,
-                           ssl->in_msg + i, sig_len ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret );
-        return( ret );
+    if ((ret = mbedtls_pk_verify(peer_pk,
+                                 md_alg, hash_start, hashlen,
+                                 ssl->in_msg + i, sig_len)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_pk_verify", ret);
+        return ret;
     }
 
-    mbedtls_ssl_update_handshake_status( ssl );
+    mbedtls_ssl_update_handshake_status(ssl);
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate verify" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= parse certificate verify"));
 
-    return( ret );
+    return ret;
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_CERT_REQ_ALLOWED_ENABLED */
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_write_new_session_ticket( mbedtls_ssl_context *ssl )
+static int ssl_write_new_session_ticket(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t tlen;
     uint32_t lifetime;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write new session ticket" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write new session ticket"));
 
     ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
     ssl->out_msg[0]  = MBEDTLS_SSL_HS_NEW_SESSION_TICKET;
@@ -4387,18 +4171,17 @@
      * 10 .  9+n ticket content
      */
 
-    if( ( ret = ssl->conf->f_ticket_write( ssl->conf->p_ticket,
-                                ssl->session_negotiate,
-                                ssl->out_msg + 10,
-                                ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN,
-                                &tlen, &lifetime ) ) != 0 )
-    {
-        MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_ticket_write", ret );
+    if ((ret = ssl->conf->f_ticket_write(ssl->conf->p_ticket,
+                                         ssl->session_negotiate,
+                                         ssl->out_msg + 10,
+                                         ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN,
+                                         &tlen, &lifetime)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_ticket_write", ret);
         tlen = 0;
     }
 
-    MBEDTLS_PUT_UINT32_BE( lifetime, ssl->out_msg, 4 );
-    MBEDTLS_PUT_UINT16_BE( tlen, ssl->out_msg, 8 );
+    MBEDTLS_PUT_UINT32_BE(lifetime, ssl->out_msg, 4);
+    MBEDTLS_PUT_UINT16_BE(tlen, ssl->out_msg, 8);
     ssl->out_msglen = 10 + tlen;
 
     /*
@@ -4407,29 +4190,27 @@
      */
     ssl->handshake->new_session_ticket = 0;
 
-    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 new session ticket" ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write new session ticket"));
 
-    return( 0 );
+    return 0;
 }
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
 
 /*
  * SSL handshake -- server side -- single step
  */
-int mbedtls_ssl_handshake_server_step( mbedtls_ssl_context *ssl )
+int mbedtls_ssl_handshake_server_step(mbedtls_ssl_context *ssl)
 {
     int ret = 0;
 
-    MBEDTLS_SSL_DEBUG_MSG( 2, ( "server state: %d", ssl->state ) );
+    MBEDTLS_SSL_DEBUG_MSG(2, ("server state: %d", ssl->state));
 
-    switch( ssl->state )
-    {
+    switch (ssl->state) {
         case MBEDTLS_SSL_HELLO_REQUEST:
             ssl->state = MBEDTLS_SSL_CLIENT_HELLO;
             break;
@@ -4438,12 +4219,12 @@
          *  <==   ClientHello
          */
         case MBEDTLS_SSL_CLIENT_HELLO:
-            ret = ssl_parse_client_hello( ssl );
+            ret = ssl_parse_client_hello(ssl);
             break;
 
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
         case MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT:
-            return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED );
+            return MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED;
 #endif
 
         /*
@@ -4454,23 +4235,23 @@
          *        ServerHelloDone
          */
         case MBEDTLS_SSL_SERVER_HELLO:
-            ret = ssl_write_server_hello( ssl );
+            ret = ssl_write_server_hello(ssl);
             break;
 
         case MBEDTLS_SSL_SERVER_CERTIFICATE:
-            ret = mbedtls_ssl_write_certificate( ssl );
+            ret = mbedtls_ssl_write_certificate(ssl);
             break;
 
         case MBEDTLS_SSL_SERVER_KEY_EXCHANGE:
-            ret = ssl_write_server_key_exchange( ssl );
+            ret = ssl_write_server_key_exchange(ssl);
             break;
 
         case MBEDTLS_SSL_CERTIFICATE_REQUEST:
-            ret = ssl_write_certificate_request( ssl );
+            ret = ssl_write_certificate_request(ssl);
             break;
 
         case MBEDTLS_SSL_SERVER_HELLO_DONE:
-            ret = ssl_write_server_hello_done( ssl );
+            ret = ssl_write_server_hello_done(ssl);
             break;
 
         /*
@@ -4481,23 +4262,23 @@
          *        Finished
          */
         case MBEDTLS_SSL_CLIENT_CERTIFICATE:
-            ret = mbedtls_ssl_parse_certificate( ssl );
+            ret = mbedtls_ssl_parse_certificate(ssl);
             break;
 
         case MBEDTLS_SSL_CLIENT_KEY_EXCHANGE:
-            ret = ssl_parse_client_key_exchange( ssl );
+            ret = ssl_parse_client_key_exchange(ssl);
             break;
 
         case MBEDTLS_SSL_CERTIFICATE_VERIFY:
-            ret = ssl_parse_certificate_verify( ssl );
+            ret = ssl_parse_certificate_verify(ssl);
             break;
 
         case MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC:
-            ret = mbedtls_ssl_parse_change_cipher_spec( ssl );
+            ret = mbedtls_ssl_parse_change_cipher_spec(ssl);
             break;
 
         case MBEDTLS_SSL_CLIENT_FINISHED:
-            ret = mbedtls_ssl_parse_finished( ssl );
+            ret = mbedtls_ssl_parse_finished(ssl);
             break;
 
         /*
@@ -4507,35 +4288,35 @@
          */
         case MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC:
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
-            if( ssl->handshake->new_session_ticket != 0 )
-                ret = ssl_write_new_session_ticket( ssl );
-            else
+            if (ssl->handshake->new_session_ticket != 0) {
+                ret = ssl_write_new_session_ticket(ssl);
+            } else
 #endif
-                ret = mbedtls_ssl_write_change_cipher_spec( ssl );
+            ret = mbedtls_ssl_write_change_cipher_spec(ssl);
             break;
 
         case MBEDTLS_SSL_SERVER_FINISHED:
-            ret = mbedtls_ssl_write_finished( ssl );
+            ret = mbedtls_ssl_write_finished(ssl);
             break;
 
         case MBEDTLS_SSL_FLUSH_BUFFERS:
-            MBEDTLS_SSL_DEBUG_MSG( 2, ( "handshake: done" ) );
+            MBEDTLS_SSL_DEBUG_MSG(2, ("handshake: done"));
             ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP;
             break;
 
         case MBEDTLS_SSL_HANDSHAKE_WRAPUP:
-            mbedtls_ssl_handshake_wrapup( ssl );
+            mbedtls_ssl_handshake_wrapup(ssl);
             break;
 
         default:
-            MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) );
-            return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+            MBEDTLS_SSL_DEBUG_MSG(1, ("invalid state %d", ssl->state));
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
     }
 
-    return( ret );
+    return ret;
 }
 
-void mbedtls_ssl_conf_preference_order( mbedtls_ssl_config *conf, int order )
+void mbedtls_ssl_conf_preference_order(mbedtls_ssl_config *conf, int order)
 {
     conf->respect_cli_pref = order;
 }