diff --git a/programs/fuzz/fuzz_dtlsclient.c b/programs/fuzz/fuzz_dtlsclient.c
index 16f6014..780cfa3 100644
--- a/programs/fuzz/fuzz_dtlsclient.c
+++ b/programs/fuzz/fuzz_dtlsclient.c
@@ -6,31 +6,26 @@
 #include "common.h"
 #include "mbedtls/ssl.h"
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-#include "mbedtls/entropy.h"
-#include "mbedtls/ctr_drbg.h"
-#include "mbedtls/timing.h"
-#include "test/certs.h"
+#    include "mbedtls/entropy.h"
+#    include "mbedtls/ctr_drbg.h"
+#    include "mbedtls/timing.h"
+#    include "test/certs.h"
 
-#if defined(MBEDTLS_SSL_CLI_C) && \
-    defined(MBEDTLS_ENTROPY_C) && \
-    defined(MBEDTLS_CTR_DRBG_C) && \
-    defined(MBEDTLS_TIMING_C)
+#    if defined(MBEDTLS_SSL_CLI_C) && defined(MBEDTLS_ENTROPY_C) && \
+        defined(MBEDTLS_CTR_DRBG_C) && defined(MBEDTLS_TIMING_C)
 static int initialized = 0;
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
+#        if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
 static mbedtls_x509_crt cacert;
-#endif
+#        endif
 
 const char *pers = "fuzz_dtlsclient";
-#endif
+#    endif
 #endif // MBEDTLS_SSL_PROTO_DTLS
 
-
-
-int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
-#if defined(MBEDTLS_SSL_PROTO_DTLS) && \
-    defined(MBEDTLS_SSL_CLI_C) && \
-    defined(MBEDTLS_ENTROPY_C) && \
-    defined(MBEDTLS_CTR_DRBG_C) && \
+int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
+{
+#if defined(MBEDTLS_SSL_PROTO_DTLS) && defined(MBEDTLS_SSL_CLI_C) && \
+    defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_CTR_DRBG_C) &&     \
     defined(MBEDTLS_TIMING_C)
     int ret;
     size_t len;
@@ -43,82 +38,80 @@
     fuzzBufferOffset_t biomemfuzz;
 
     if (initialized == 0) {
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
-        mbedtls_x509_crt_init( &cacert );
-        if (mbedtls_x509_crt_parse( &cacert, (const unsigned char *) mbedtls_test_cas_pem,
-                                   mbedtls_test_cas_pem_len ) != 0)
+#    if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
+        mbedtls_x509_crt_init(&cacert);
+        if (mbedtls_x509_crt_parse(&cacert,
+                                   (const unsigned char *)mbedtls_test_cas_pem,
+                                   mbedtls_test_cas_pem_len) != 0)
             return 1;
-#endif
+#    endif
         dummy_init();
 
         initialized = 1;
     }
 
-    mbedtls_ssl_init( &ssl );
-    mbedtls_ssl_config_init( &conf );
-    mbedtls_ctr_drbg_init( &ctr_drbg );
-    mbedtls_entropy_init( &entropy );
+    mbedtls_ssl_init(&ssl);
+    mbedtls_ssl_config_init(&conf);
+    mbedtls_ctr_drbg_init(&ctr_drbg);
+    mbedtls_entropy_init(&entropy);
 
     srand(1);
-    if( mbedtls_ctr_drbg_seed( &ctr_drbg, dummy_entropy, &entropy,
-                              (const unsigned char *) pers, strlen( pers ) ) != 0 )
+    if (mbedtls_ctr_drbg_seed(&ctr_drbg, dummy_entropy, &entropy,
+                              (const unsigned char *)pers, strlen(pers)) != 0)
         goto exit;
 
-    if( mbedtls_ssl_config_defaults( &conf,
-                                    MBEDTLS_SSL_IS_CLIENT,
+    if (mbedtls_ssl_config_defaults(&conf, MBEDTLS_SSL_IS_CLIENT,
                                     MBEDTLS_SSL_TRANSPORT_DATAGRAM,
-                                    MBEDTLS_SSL_PRESET_DEFAULT ) != 0 )
+                                    MBEDTLS_SSL_PRESET_DEFAULT) != 0)
         goto exit;
 
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
-    mbedtls_ssl_conf_ca_chain( &conf, &cacert, NULL );
-#endif
-    mbedtls_ssl_conf_authmode( &conf, MBEDTLS_SSL_VERIFY_NONE );
-    mbedtls_ssl_conf_rng( &conf, dummy_random, &ctr_drbg );
+#    if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
+    mbedtls_ssl_conf_ca_chain(&conf, &cacert, NULL);
+#    endif
+    mbedtls_ssl_conf_authmode(&conf, MBEDTLS_SSL_VERIFY_NONE);
+    mbedtls_ssl_conf_rng(&conf, dummy_random, &ctr_drbg);
 
-    if( mbedtls_ssl_setup( &ssl, &conf ) != 0 )
+    if (mbedtls_ssl_setup(&ssl, &conf) != 0)
         goto exit;
 
-    mbedtls_ssl_set_timer_cb( &ssl, &timer, mbedtls_timing_set_delay,
-                             mbedtls_timing_get_delay );
+    mbedtls_ssl_set_timer_cb(&ssl, &timer, mbedtls_timing_set_delay,
+                             mbedtls_timing_get_delay);
 
-#if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
-    if( mbedtls_ssl_set_hostname( &ssl, "localhost" ) != 0 )
+#    if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
+    if (mbedtls_ssl_set_hostname(&ssl, "localhost") != 0)
         goto exit;
-#endif
+#    endif
 
     biomemfuzz.Data = Data;
     biomemfuzz.Size = Size;
     biomemfuzz.Offset = 0;
-    mbedtls_ssl_set_bio( &ssl, &biomemfuzz, dummy_send, fuzz_recv, fuzz_recv_timeout );
+    mbedtls_ssl_set_bio(&ssl, &biomemfuzz, dummy_send, fuzz_recv,
+                        fuzz_recv_timeout);
 
-    ret = mbedtls_ssl_handshake( &ssl );
-    if( ret == 0 )
-    {
-        //keep reading data from server until the end
-        do
-        {
-            len = sizeof( buf ) - 1;
-            ret = mbedtls_ssl_read( &ssl, buf, len );
+    ret = mbedtls_ssl_handshake(&ssl);
+    if (ret == 0) {
+        // keep reading data from server until the end
+        do {
+            len = sizeof(buf) - 1;
+            ret = mbedtls_ssl_read(&ssl, buf, len);
 
-            if( ret == MBEDTLS_ERR_SSL_WANT_READ )
+            if (ret == MBEDTLS_ERR_SSL_WANT_READ)
                 continue;
-            else if( ret <= 0 )
-                //EOF or error
+            else if (ret <= 0)
+                // EOF or error
                 break;
-        }
-        while( 1 );
+        } while (1);
     }
 
 exit:
-    mbedtls_entropy_free( &entropy );
-    mbedtls_ctr_drbg_free( &ctr_drbg );
-    mbedtls_ssl_config_free( &conf );
-    mbedtls_ssl_free( &ssl );
+    mbedtls_entropy_free(&entropy);
+    mbedtls_ctr_drbg_free(&ctr_drbg);
+    mbedtls_ssl_config_free(&conf);
+    mbedtls_ssl_free(&ssl);
 
 #else
-    (void) Data;
-    (void) Size;
+    (void)Data;
+    (void)Size;
 #endif
     return 0;
 }