diff --git a/programs/test/dlopen.c b/programs/test/dlopen.c
index b07ba66..e8134f6 100644
--- a/programs/test/dlopen.c
+++ b/programs/test/dlopen.c
@@ -41,67 +41,68 @@
 
 #include <dlfcn.h>
 
-#define CHECK_DLERROR( function, argument )                             \
+#define CHECK_DLERROR(function, argument)                             \
     do                                                                  \
     {                                                                   \
-        char *CHECK_DLERROR_error = dlerror ( );                        \
-        if( CHECK_DLERROR_error != NULL )                               \
+        char *CHECK_DLERROR_error = dlerror();                        \
+        if (CHECK_DLERROR_error != NULL)                               \
         {                                                               \
-            fprintf( stderr, "Dynamic loading error for %s(%s): %s\n",  \
-                     function, argument, CHECK_DLERROR_error );         \
-            mbedtls_exit( MBEDTLS_EXIT_FAILURE );                       \
+            fprintf(stderr, "Dynamic loading error for %s(%s): %s\n",  \
+                    function, argument, CHECK_DLERROR_error);         \
+            mbedtls_exit(MBEDTLS_EXIT_FAILURE);                       \
         }                                                               \
     }                                                                   \
-    while( 0 )
+    while (0)
 
-int main( void )
+int main(void)
 {
 #if defined(MBEDTLS_MD_C) || defined(MBEDTLS_SSL_TLS_C)
     unsigned n;
 #endif
 
 #if defined(MBEDTLS_SSL_TLS_C)
-    void *tls_so = dlopen( TLS_SO_FILENAME, RTLD_NOW );
-    CHECK_DLERROR( "dlopen", TLS_SO_FILENAME );
-    const int *( *ssl_list_ciphersuites )( void ) =
-        dlsym( tls_so, "mbedtls_ssl_list_ciphersuites" );
-    CHECK_DLERROR( "dlsym", "mbedtls_ssl_list_ciphersuites" );
-    const int *ciphersuites = ssl_list_ciphersuites( );
-    for( n = 0; ciphersuites[n] != 0; n++ )
-        /* nothing to do, we're just counting */;
-    mbedtls_printf( "dlopen(%s): %u ciphersuites\n",
-                    TLS_SO_FILENAME, n );
-    dlclose( tls_so );
-    CHECK_DLERROR( "dlclose", TLS_SO_FILENAME );
+    void *tls_so = dlopen(TLS_SO_FILENAME, RTLD_NOW);
+    CHECK_DLERROR("dlopen", TLS_SO_FILENAME);
+    const int *(*ssl_list_ciphersuites)(void) =
+        dlsym(tls_so, "mbedtls_ssl_list_ciphersuites");
+    CHECK_DLERROR("dlsym", "mbedtls_ssl_list_ciphersuites");
+    const int *ciphersuites = ssl_list_ciphersuites();
+    for (n = 0; ciphersuites[n] != 0; n++) {/* nothing to do, we're just counting */
+        ;
+    }
+    mbedtls_printf("dlopen(%s): %u ciphersuites\n",
+                   TLS_SO_FILENAME, n);
+    dlclose(tls_so);
+    CHECK_DLERROR("dlclose", TLS_SO_FILENAME);
 #endif  /* MBEDTLS_SSL_TLS_C */
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
-    void *x509_so = dlopen( X509_SO_FILENAME, RTLD_NOW );
-    CHECK_DLERROR( "dlopen", X509_SO_FILENAME );
+    void *x509_so = dlopen(X509_SO_FILENAME, RTLD_NOW);
+    CHECK_DLERROR("dlopen", X509_SO_FILENAME);
     const mbedtls_x509_crt_profile *profile =
-        dlsym( x509_so, "mbedtls_x509_crt_profile_default" );
-    CHECK_DLERROR( "dlsym", "mbedtls_x509_crt_profile_default" );
-    mbedtls_printf( "dlopen(%s): Allowed md mask: %08x\n",
-                    X509_SO_FILENAME, (unsigned) profile->allowed_mds );
-    dlclose( x509_so );
-    CHECK_DLERROR( "dlclose", X509_SO_FILENAME );
+        dlsym(x509_so, "mbedtls_x509_crt_profile_default");
+    CHECK_DLERROR("dlsym", "mbedtls_x509_crt_profile_default");
+    mbedtls_printf("dlopen(%s): Allowed md mask: %08x\n",
+                   X509_SO_FILENAME, (unsigned) profile->allowed_mds);
+    dlclose(x509_so);
+    CHECK_DLERROR("dlclose", X509_SO_FILENAME);
 #endif  /* MBEDTLS_X509_CRT_PARSE_C */
 
 #if defined(MBEDTLS_MD_C)
-    void *crypto_so = dlopen( CRYPTO_SO_FILENAME, RTLD_NOW );
-    CHECK_DLERROR( "dlopen", CRYPTO_SO_FILENAME );
-    const int *( *md_list )( void ) =
-        dlsym( crypto_so, "mbedtls_md_list" );
-    CHECK_DLERROR( "dlsym", "mbedtls_md_list" );
-    const int *mds = md_list( );
-    for( n = 0; mds[n] != 0; n++ )
-        /* nothing to do, we're just counting */;
-    mbedtls_printf( "dlopen(%s): %u hashes\n",
-                    CRYPTO_SO_FILENAME, n );
-    dlclose( crypto_so );
-    CHECK_DLERROR( "dlclose", CRYPTO_SO_FILENAME );
+    void *crypto_so = dlopen(CRYPTO_SO_FILENAME, RTLD_NOW);
+    CHECK_DLERROR("dlopen", CRYPTO_SO_FILENAME);
+    const int *(*md_list)(void) =
+        dlsym(crypto_so, "mbedtls_md_list");
+    CHECK_DLERROR("dlsym", "mbedtls_md_list");
+    const int *mds = md_list();
+    for (n = 0; mds[n] != 0; n++) {/* nothing to do, we're just counting */
+        ;
+    }
+    mbedtls_printf("dlopen(%s): %u hashes\n",
+                   CRYPTO_SO_FILENAME, n);
+    dlclose(crypto_so);
+    CHECK_DLERROR("dlclose", CRYPTO_SO_FILENAME);
 #endif  /* MBEDTLS_MD_C */
 
-    return( 0 );
+    return 0;
 }
-