diff --git a/library/ssl_cache.c b/library/ssl_cache.c
index 7a600ca..0f0e610 100644
--- a/library/ssl_cache.c
+++ b/library/ssl_cache.c
@@ -32,83 +32,79 @@
 
 #include <string.h>
 
-void mbedtls_ssl_cache_init( mbedtls_ssl_cache_context *cache )
+void mbedtls_ssl_cache_init(mbedtls_ssl_cache_context *cache)
 {
-    memset( cache, 0, sizeof( mbedtls_ssl_cache_context ) );
+    memset(cache, 0, sizeof(mbedtls_ssl_cache_context));
 
     cache->timeout = MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT;
     cache->max_entries = MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES;
 
 #if defined(MBEDTLS_THREADING_C)
-    mbedtls_mutex_init( &cache->mutex );
+    mbedtls_mutex_init(&cache->mutex);
 #endif
 }
 
-int mbedtls_ssl_cache_get( void *data, mbedtls_ssl_session *session )
+int mbedtls_ssl_cache_get(void *data, mbedtls_ssl_session *session)
 {
     int ret = 1;
 #if defined(MBEDTLS_HAVE_TIME)
-    mbedtls_time_t t = mbedtls_time( NULL );
+    mbedtls_time_t t = mbedtls_time(NULL);
 #endif
     mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data;
     mbedtls_ssl_cache_entry *cur, *entry;
 
 #if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_lock( &cache->mutex ) != 0 )
-        return( 1 );
+    if (mbedtls_mutex_lock(&cache->mutex) != 0) {
+        return 1;
+    }
 #endif
 
     cur = cache->chain;
     entry = NULL;
 
-    while( cur != NULL )
-    {
+    while (cur != NULL) {
         entry = cur;
         cur = cur->next;
 
 #if defined(MBEDTLS_HAVE_TIME)
-        if( cache->timeout != 0 &&
-            (int) ( t - entry->timestamp ) > cache->timeout )
+        if (cache->timeout != 0 &&
+            (int) (t - entry->timestamp) > cache->timeout) {
             continue;
+        }
 #endif
 
-        if( session->id_len != entry->session.id_len ||
-            memcmp( session->id, entry->session.id,
-                    entry->session.id_len ) != 0 )
-        {
+        if (session->id_len != entry->session.id_len ||
+            memcmp(session->id, entry->session.id,
+                   entry->session.id_len) != 0) {
             continue;
         }
 
-        ret = mbedtls_ssl_session_copy( session, &entry->session );
-        if( ret != 0 )
-        {
+        ret = mbedtls_ssl_session_copy(session, &entry->session);
+        if (ret != 0) {
             ret = 1;
             goto exit;
         }
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C) && \
-    defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
+        defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
         /*
          * Restore peer certificate (without rest of the original chain)
          */
-        if( entry->peer_cert.p != NULL )
-        {
+        if (entry->peer_cert.p != NULL) {
             /* `session->peer_cert` is NULL after the call to
              * mbedtls_ssl_session_copy(), because cache entries
              * have the `peer_cert` field set to NULL. */
 
-            if( ( session->peer_cert = mbedtls_calloc( 1,
-                                 sizeof(mbedtls_x509_crt) ) ) == NULL )
-            {
+            if ((session->peer_cert = mbedtls_calloc(1,
+                                                     sizeof(mbedtls_x509_crt))) == NULL) {
                 ret = 1;
                 goto exit;
             }
 
-            mbedtls_x509_crt_init( session->peer_cert );
-            if( mbedtls_x509_crt_parse( session->peer_cert, entry->peer_cert.p,
-                                entry->peer_cert.len ) != 0 )
-            {
-                mbedtls_free( session->peer_cert );
+            mbedtls_x509_crt_init(session->peer_cert);
+            if (mbedtls_x509_crt_parse(session->peer_cert, entry->peer_cert.p,
+                                       entry->peer_cert.len) != 0) {
+                mbedtls_free(session->peer_cert);
                 session->peer_cert = NULL;
                 ret = 1;
                 goto exit;
@@ -122,18 +118,19 @@
 
 exit:
 #if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &cache->mutex ) != 0 )
+    if (mbedtls_mutex_unlock(&cache->mutex) != 0) {
         ret = 1;
+    }
 #endif
 
-    return( ret );
+    return ret;
 }
 
-int mbedtls_ssl_cache_set( void *data, const mbedtls_ssl_session *session )
+int mbedtls_ssl_cache_set(void *data, const mbedtls_ssl_session *session)
 {
     int ret = 1;
 #if defined(MBEDTLS_HAVE_TIME)
-    mbedtls_time_t t = mbedtls_time( NULL ), oldest = 0;
+    mbedtls_time_t t = mbedtls_time(NULL), oldest = 0;
     mbedtls_ssl_cache_entry *old = NULL;
 #endif
     mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data;
@@ -141,32 +138,31 @@
     int count = 0;
 
 #if defined(MBEDTLS_THREADING_C)
-    if( ( ret = mbedtls_mutex_lock( &cache->mutex ) ) != 0 )
-        return( ret );
+    if ((ret = mbedtls_mutex_lock(&cache->mutex)) != 0) {
+        return ret;
+    }
 #endif
 
     cur = cache->chain;
     prv = NULL;
 
-    while( cur != NULL )
-    {
+    while (cur != NULL) {
         count++;
 
 #if defined(MBEDTLS_HAVE_TIME)
-        if( cache->timeout != 0 &&
-            (int) ( t - cur->timestamp ) > cache->timeout )
-        {
+        if (cache->timeout != 0 &&
+            (int) (t - cur->timestamp) > cache->timeout) {
             cur->timestamp = t;
             break; /* expired, reuse this slot, update timestamp */
         }
 #endif
 
-        if( memcmp( session->id, cur->session.id, cur->session.id_len ) == 0 )
+        if (memcmp(session->id, cur->session.id, cur->session.id_len) == 0) {
             break; /* client reconnected, keep timestamp for session id */
 
+        }
 #if defined(MBEDTLS_HAVE_TIME)
-        if( oldest == 0 || cur->timestamp < oldest )
-        {
+        if (oldest == 0 || cur->timestamp < oldest) {
             oldest = cur->timestamp;
             old = cur;
         }
@@ -176,16 +172,13 @@
         cur = cur->next;
     }
 
-    if( cur == NULL )
-    {
+    if (cur == NULL) {
 #if defined(MBEDTLS_HAVE_TIME)
         /*
          * Reuse oldest entry if max_entries reached
          */
-        if( count >= cache->max_entries )
-        {
-            if( old == NULL )
-            {
+        if (count >= cache->max_entries) {
+            if (old == NULL) {
                 ret = 1;
                 goto exit;
             }
@@ -197,10 +190,8 @@
          * Reuse first entry in chain if max_entries reached,
          * but move to last place
          */
-        if( count >= cache->max_entries )
-        {
-            if( cache->chain == NULL )
-            {
+        if (count >= cache->max_entries) {
+            if (cache->chain == NULL) {
                 ret = 1;
                 goto exit;
             }
@@ -211,22 +202,21 @@
             prv->next = cur;
         }
 #endif /* MBEDTLS_HAVE_TIME */
-        else
-        {
+        else {
             /*
              * max_entries not reached, create new entry
              */
-            cur = mbedtls_calloc( 1, sizeof(mbedtls_ssl_cache_entry) );
-            if( cur == NULL )
-            {
+            cur = mbedtls_calloc(1, sizeof(mbedtls_ssl_cache_entry));
+            if (cur == NULL) {
                 ret = 1;
                 goto exit;
             }
 
-            if( prv == NULL )
+            if (prv == NULL) {
                 cache->chain = cur;
-            else
+            } else {
                 prv->next = cur;
+            }
         }
 
 #if defined(MBEDTLS_HAVE_TIME)
@@ -239,10 +229,9 @@
     /*
      * If we're reusing an entry, free its certificate first
      */
-    if( cur->peer_cert.p != NULL )
-    {
-        mbedtls_free( cur->peer_cert.p );
-        memset( &cur->peer_cert, 0, sizeof(mbedtls_x509_buf) );
+    if (cur->peer_cert.p != NULL) {
+        mbedtls_free(cur->peer_cert.p);
+        memset(&cur->peer_cert, 0, sizeof(mbedtls_x509_buf));
     }
 #endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
 
@@ -251,9 +240,8 @@
      * This inefficiency will go away as soon as we implement on-demand
      * parsing of CRTs, in which case there's no need for the `peer_cert`
      * field anymore in the first place, and we're done after this call. */
-    ret = mbedtls_ssl_session_copy( &cur->session, session );
-    if( ret != 0 )
-    {
+    ret = mbedtls_ssl_session_copy(&cur->session, session);
+    if (ret != 0) {
         ret = 1;
         goto exit;
     }
@@ -261,23 +249,21 @@
 #if defined(MBEDTLS_X509_CRT_PARSE_C) && \
     defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
     /* If present, free the X.509 structure and only store the raw CRT data. */
-    if( cur->session.peer_cert != NULL )
-    {
+    if (cur->session.peer_cert != NULL) {
         cur->peer_cert.p =
-            mbedtls_calloc( 1, cur->session.peer_cert->raw.len );
-        if( cur->peer_cert.p == NULL )
-        {
+            mbedtls_calloc(1, cur->session.peer_cert->raw.len);
+        if (cur->peer_cert.p == NULL) {
             ret = 1;
             goto exit;
         }
 
-        memcpy( cur->peer_cert.p,
-                cur->session.peer_cert->raw.p,
-                cur->session.peer_cert->raw.len );
+        memcpy(cur->peer_cert.p,
+               cur->session.peer_cert->raw.p,
+               cur->session.peer_cert->raw.len);
         cur->peer_cert.len = session->peer_cert->raw.len;
 
-        mbedtls_x509_crt_free( cur->session.peer_cert );
-        mbedtls_free( cur->session.peer_cert );
+        mbedtls_x509_crt_free(cur->session.peer_cert);
+        mbedtls_free(cur->session.peer_cert);
         cur->session.peer_cert = NULL;
     }
 #endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
@@ -286,52 +272,56 @@
 
 exit:
 #if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &cache->mutex ) != 0 )
+    if (mbedtls_mutex_unlock(&cache->mutex) != 0) {
         ret = 1;
+    }
 #endif
 
-    return( ret );
+    return ret;
 }
 
 #if defined(MBEDTLS_HAVE_TIME)
-void mbedtls_ssl_cache_set_timeout( mbedtls_ssl_cache_context *cache, int timeout )
+void mbedtls_ssl_cache_set_timeout(mbedtls_ssl_cache_context *cache, int timeout)
 {
-    if( timeout < 0 ) timeout = 0;
+    if (timeout < 0) {
+        timeout = 0;
+    }
 
     cache->timeout = timeout;
 }
 #endif /* MBEDTLS_HAVE_TIME */
 
-void mbedtls_ssl_cache_set_max_entries( mbedtls_ssl_cache_context *cache, int max )
+void mbedtls_ssl_cache_set_max_entries(mbedtls_ssl_cache_context *cache, int max)
 {
-    if( max < 0 ) max = 0;
+    if (max < 0) {
+        max = 0;
+    }
 
     cache->max_entries = max;
 }
 
-void mbedtls_ssl_cache_free( mbedtls_ssl_cache_context *cache )
+void mbedtls_ssl_cache_free(mbedtls_ssl_cache_context *cache)
 {
     mbedtls_ssl_cache_entry *cur, *prv;
 
     cur = cache->chain;
 
-    while( cur != NULL )
-    {
+    while (cur != NULL) {
         prv = cur;
         cur = cur->next;
 
-        mbedtls_ssl_session_free( &prv->session );
+        mbedtls_ssl_session_free(&prv->session);
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C) && \
-    defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-        mbedtls_free( prv->peer_cert.p );
+        defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
+        mbedtls_free(prv->peer_cert.p);
 #endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
 
-        mbedtls_free( prv );
+        mbedtls_free(prv);
     }
 
 #if defined(MBEDTLS_THREADING_C)
-    mbedtls_mutex_free( &cache->mutex );
+    mbedtls_mutex_free(&cache->mutex);
 #endif
     cache->chain = NULL;
 }