diff --git a/programs/hash/generic_sum.c b/programs/hash/generic_sum.c
index f570e3e..edb40b6 100644
--- a/programs/hash/generic_sum.c
+++ b/programs/hash/generic_sum.c
@@ -33,43 +33,47 @@
 #endif
 
 #if !defined(MBEDTLS_MD_C) || !defined(MBEDTLS_FS_IO)
-int main( void )
+int main(void)
 {
     mbedtls_printf("MBEDTLS_MD_C and/or MBEDTLS_FS_IO not defined.\n");
-    mbedtls_exit( 0 );
+    mbedtls_exit(0);
 }
 #else
 
 
-static int generic_wrapper( const mbedtls_md_info_t *md_info, char *filename, unsigned char *sum )
+static int generic_wrapper(const mbedtls_md_info_t *md_info, char *filename, unsigned char *sum)
 {
-    int ret = mbedtls_md_file( md_info, filename, sum );
+    int ret = mbedtls_md_file(md_info, filename, sum);
 
-    if( ret == 1 )
-        mbedtls_fprintf( stderr, "failed to open: %s\n", filename );
+    if (ret == 1) {
+        mbedtls_fprintf(stderr, "failed to open: %s\n", filename);
+    }
 
-    if( ret == 2 )
-        mbedtls_fprintf( stderr, "failed to read: %s\n", filename );
+    if (ret == 2) {
+        mbedtls_fprintf(stderr, "failed to read: %s\n", filename);
+    }
 
-    return( ret );
+    return ret;
 }
 
-static int generic_print( const mbedtls_md_info_t *md_info, char *filename )
+static int generic_print(const mbedtls_md_info_t *md_info, char *filename)
 {
     int i;
     unsigned char sum[MBEDTLS_MD_MAX_SIZE];
 
-    if( generic_wrapper( md_info, filename, sum ) != 0 )
-        return( 1 );
+    if (generic_wrapper(md_info, filename, sum) != 0) {
+        return 1;
+    }
 
-    for( i = 0; i < mbedtls_md_get_size( md_info ); i++ )
-        mbedtls_printf( "%02x", sum[i] );
+    for (i = 0; i < mbedtls_md_get_size(md_info); i++) {
+        mbedtls_printf("%02x", sum[i]);
+    }
 
-    mbedtls_printf( "  %s\n", filename );
-    return( 0 );
+    mbedtls_printf("  %s\n", filename);
+    return 0;
 }
 
-static int generic_check( const mbedtls_md_info_t *md_info, char *filename )
+static int generic_check(const mbedtls_md_info_t *md_info, char *filename)
 {
     int i;
     size_t n;
@@ -85,146 +89,142 @@
     char buf[MBEDTLS_MD_MAX_SIZE * 2 + 1];
 #endif
 
-    if( ( f = fopen( filename, "rb" ) ) == NULL )
-    {
-        mbedtls_printf( "failed to open: %s\n", filename );
-        return( 1 );
+    if ((f = fopen(filename, "rb")) == NULL) {
+        mbedtls_printf("failed to open: %s\n", filename);
+        return 1;
     }
 
     nb_err1 = nb_err2 = 0;
     nb_tot1 = nb_tot2 = 0;
 
-    memset( line, 0, sizeof( line ) );
+    memset(line, 0, sizeof(line));
 
-    n = sizeof( line );
+    n = sizeof(line);
 
-    while( fgets( line, (int) n - 1, f ) != NULL )
-    {
-        n = strlen( line );
+    while (fgets(line, (int) n - 1, f) != NULL) {
+        n = strlen(line);
 
-        if( n < (size_t) 2 * mbedtls_md_get_size( md_info ) + 4 )
-        {
-            mbedtls_printf("No '%s' hash found on line.\n", mbedtls_md_get_name( md_info ));
+        if (n < (size_t) 2 * mbedtls_md_get_size(md_info) + 4) {
+            mbedtls_printf("No '%s' hash found on line.\n", mbedtls_md_get_name(md_info));
             continue;
         }
 
-        if( line[2 * mbedtls_md_get_size( md_info )] != ' ' || line[2 * mbedtls_md_get_size( md_info ) + 1] != ' ' )
-        {
-            mbedtls_printf("No '%s' hash found on line.\n", mbedtls_md_get_name( md_info ));
+        if (line[2 * mbedtls_md_get_size(md_info)] != ' ' ||
+            line[2 * mbedtls_md_get_size(md_info) + 1] != ' ') {
+            mbedtls_printf("No '%s' hash found on line.\n", mbedtls_md_get_name(md_info));
             continue;
         }
 
-        if( line[n - 1] == '\n' ) { n--; line[n] = '\0'; }
-        if( line[n - 1] == '\r' ) { n--; line[n] = '\0'; }
+        if (line[n - 1] == '\n') {
+            n--; line[n] = '\0';
+        }
+        if (line[n - 1] == '\r') {
+            n--; line[n] = '\0';
+        }
 
         nb_tot1++;
 
-        if( generic_wrapper( md_info, line + 2 + 2 * mbedtls_md_get_size( md_info ), sum ) != 0 )
-        {
+        if (generic_wrapper(md_info, line + 2 + 2 * mbedtls_md_get_size(md_info), sum) != 0) {
             nb_err1++;
             continue;
         }
 
         nb_tot2++;
 
-        for( i = 0; i < mbedtls_md_get_size( md_info ); i++ )
-            sprintf( buf + i * 2, "%02x", sum[i] );
+        for (i = 0; i < mbedtls_md_get_size(md_info); i++) {
+            sprintf(buf + i * 2, "%02x", sum[i]);
+        }
 
         /* Use constant-time buffer comparison */
         diff = 0;
-        for( i = 0; i < 2 * mbedtls_md_get_size( md_info ); i++ )
+        for (i = 0; i < 2 * mbedtls_md_get_size(md_info); i++) {
             diff |= line[i] ^ buf[i];
-
-        if( diff != 0 )
-        {
-            nb_err2++;
-            mbedtls_fprintf( stderr, "wrong checksum: %s\n", line + 66 );
         }
 
-        n = sizeof( line );
+        if (diff != 0) {
+            nb_err2++;
+            mbedtls_fprintf(stderr, "wrong checksum: %s\n", line + 66);
+        }
+
+        n = sizeof(line);
     }
 
-    if( nb_err1 != 0 )
-    {
-        mbedtls_printf( "WARNING: %d (out of %d) input files could "
-                "not be read\n", nb_err1, nb_tot1 );
+    if (nb_err1 != 0) {
+        mbedtls_printf("WARNING: %d (out of %d) input files could "
+                       "not be read\n", nb_err1, nb_tot1);
     }
 
-    if( nb_err2 != 0 )
-    {
-        mbedtls_printf( "WARNING: %d (out of %d) computed checksums did "
-                "not match\n", nb_err2, nb_tot2 );
+    if (nb_err2 != 0) {
+        mbedtls_printf("WARNING: %d (out of %d) computed checksums did "
+                       "not match\n", nb_err2, nb_tot2);
     }
 
-    fclose( f );
+    fclose(f);
 
-    return( nb_err1 != 0 || nb_err2 != 0 );
+    return nb_err1 != 0 || nb_err2 != 0;
 }
 
-int main( int argc, char *argv[] )
+int main(int argc, char *argv[])
 {
     int ret = 1, i;
     int exit_code = MBEDTLS_EXIT_FAILURE;
     const mbedtls_md_info_t *md_info;
     mbedtls_md_context_t md_ctx;
 
-    mbedtls_md_init( &md_ctx );
+    mbedtls_md_init(&md_ctx);
 
-    if( argc == 1 )
-    {
+    if (argc == 1) {
         const int *list;
 
-        mbedtls_printf( "print mode:  generic_sum <mbedtls_md> <file> <file> ...\n" );
-        mbedtls_printf( "check mode:  generic_sum <mbedtls_md> -c <checksum file>\n" );
+        mbedtls_printf("print mode:  generic_sum <mbedtls_md> <file> <file> ...\n");
+        mbedtls_printf("check mode:  generic_sum <mbedtls_md> -c <checksum file>\n");
 
-        mbedtls_printf( "\nAvailable message digests:\n" );
+        mbedtls_printf("\nAvailable message digests:\n");
         list = mbedtls_md_list();
-        while( *list )
-        {
-            md_info = mbedtls_md_info_from_type( *list );
-            mbedtls_printf( "  %s\n", mbedtls_md_get_name( md_info ) );
+        while (*list) {
+            md_info = mbedtls_md_info_from_type(*list);
+            mbedtls_printf("  %s\n", mbedtls_md_get_name(md_info));
             list++;
         }
 
 #if defined(_WIN32)
-        mbedtls_printf( "\n  Press Enter to exit this program.\n" );
-        fflush( stdout ); getchar();
+        mbedtls_printf("\n  Press Enter to exit this program.\n");
+        fflush(stdout); getchar();
 #endif
 
-        mbedtls_exit( exit_code );
+        mbedtls_exit(exit_code);
     }
 
     /*
      * Read the MD from the command line
      */
-    md_info = mbedtls_md_info_from_string( argv[1] );
-    if( md_info == NULL )
-    {
-        mbedtls_fprintf( stderr, "Message Digest '%s' not found\n", argv[1] );
-        mbedtls_exit( exit_code );
+    md_info = mbedtls_md_info_from_string(argv[1]);
+    if (md_info == NULL) {
+        mbedtls_fprintf(stderr, "Message Digest '%s' not found\n", argv[1]);
+        mbedtls_exit(exit_code);
     }
-    if( mbedtls_md_setup( &md_ctx, md_info, 0 ) )
-    {
-        mbedtls_fprintf( stderr, "Failed to initialize context.\n" );
-        mbedtls_exit( exit_code );
+    if (mbedtls_md_setup(&md_ctx, md_info, 0)) {
+        mbedtls_fprintf(stderr, "Failed to initialize context.\n");
+        mbedtls_exit(exit_code);
     }
 
     ret = 0;
-    if( argc == 4 && strcmp( "-c", argv[2] ) == 0 )
-    {
-        ret |= generic_check( md_info, argv[3] );
+    if (argc == 4 && strcmp("-c", argv[2]) == 0) {
+        ret |= generic_check(md_info, argv[3]);
         goto exit;
     }
 
-    for( i = 2; i < argc; i++ )
-        ret |= generic_print( md_info, argv[i] );
+    for (i = 2; i < argc; i++) {
+        ret |= generic_print(md_info, argv[i]);
+    }
 
-    if ( ret == 0 )
+    if (ret == 0) {
         exit_code = MBEDTLS_EXIT_SUCCESS;
+    }
 
 exit:
-    mbedtls_md_free( &md_ctx );
+    mbedtls_md_free(&md_ctx);
 
-    mbedtls_exit( exit_code );
+    mbedtls_exit(exit_code);
 }
 #endif /* MBEDTLS_MD_C && MBEDTLS_FS_IO */