early-access version 1503

externals/mbedtls/programs/test/zeroize.c

@@ -4,15 +4,36 @@
  * This is a simple test application used for debugger-driven testing to check
  * whether calls to mbedtls_platform_zeroize() are being eliminated by compiler
  * optimizations. This application is used by the GDB script at
- * tests/scripts/test_zeroize.gdb under the assumption that the code does not
- * change often (as opposed to the library code) because the script sets a
- * breakpoint at the last return statement in the main() function of this
- * program. The debugger facilities are then used to manually inspect the
- * memory and verify that the call to mbedtls_platform_zeroize() was not
- * eliminated.
+ * tests/scripts/test_zeroize.gdb: the script sets a breakpoint at the last
+ * return statement in the main() function of this program. The debugger
+ * facilities are then used to manually inspect the memory and verify that the
+ * call to mbedtls_platform_zeroize() was not eliminated.
  *
- *  Copyright (C) 2018, Arm Limited, All Rights Reserved
- *  SPDX-License-Identifier: GPL-2.0
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ *
+ *  This file is provided under the Apache License 2.0, or the
+ *  GNU General Public License v2.0 or later.
+ *
+ *  **********
+ *  Apache License 2.0:
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  **********
+ *
+ *  **********
+ *  GNU General Public License v2.0 or later:
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -28,7 +49,7 @@
  *  with this program; if not, write to the Free Software Foundation, Inc.,
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  *
- *  This file is part of mbed TLS (https://tls.mbed.org)
+ *  **********
  */
 
 #if !defined(MBEDTLS_CONFIG_FILE)
@@ -44,6 +65,7 @@
 #else
 #include <stdlib.h>
 #define mbedtls_printf     printf
+#define mbedtls_exit       exit
 #define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
 #define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
 #endif
@@ -74,14 +96,14 @@ int main( int argc, char** argv )
     {
         mbedtls_printf( "This program takes exactly 1 agument\n" );
         usage();
-        return( exit_code );
+        mbedtls_exit( exit_code );
     }
 
     fp = fopen( argv[1], "r" );
     if( fp == NULL )
     {
         mbedtls_printf( "Could not open file '%s'\n", argv[1] );
-        return( exit_code );
+        mbedtls_exit( exit_code );
     }
 
     while( ( c = fgetc( fp ) ) != EOF && p < end - 1 )
@@ -99,5 +121,5 @@ int main( int argc, char** argv )
     fclose( fp );
     mbedtls_platform_zeroize( buf, sizeof( buf ) );
 
-    return( exit_code );
+    mbedtls_exit( exit_code ); // GDB_BREAK_HERE -- don't remove this comment!
 }