test/memleaktest.c

   1 /*
   2  * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <string.h>
  11 #include <openssl/bio.h>
  12 #include <openssl/crypto.h>
  13
  14 #include "testutil.h"
  15
  16 /* __has_feature is a clang-ism, while __SANITIZE_ADDRESS__ is a gcc-ism */
  17 #if defined(__has_feature)
  18 # if __has_feature(address_sanitizer)
  19 #  define __SANITIZE_ADDRESS__ 1
  20 # endif
  21 #endif
  22 /* If __SANITIZE_ADDRESS__ isn't defined, define it to be false */
  23 /* Leak detection is not yet supported with MSVC on Windows, so */
  24 /* set __SANITIZE_ADDRESS__ to false in this case as well.      */
  25 #if !defined(__SANITIZE_ADDRESS__) || defined(_MSC_VER)
  26 # undef __SANITIZE_ADDRESS__
  27 # define __SANITIZE_ADDRESS__ 0
  28 #endif
  29
  30 /*
  31  * We use a proper main function here instead of the custom main from the
  32  * test framework to avoid CRYPTO_mem_leaks stuff.
  33  */
  34
  35 int main(int argc, char *argv[])
  36 {
  37 #if __SANITIZE_ADDRESS__
  38     int exitcode = EXIT_SUCCESS;
  39 #else
  40     /*
  41      * When we don't sanitize, we set the exit code to what we would expect
  42      * to get when we are sanitizing.  This makes it easy for wrapper scripts
  43      * to detect that we get the result we expect.
  44      */
  45     int exitcode = EXIT_FAILURE;
  46 #endif
  47     char *lost;
  48
  49     lost = OPENSSL_malloc(3);
  50     if (!TEST_ptr(lost))
  51         return EXIT_FAILURE;
  52
  53     strcpy(lost, "ab");
  54
  55     if (argv[1] && strcmp(argv[1], "freeit") == 0) {
  56         OPENSSL_free(lost);
  57         exitcode = EXIT_SUCCESS;
  58     }
  59
  60     lost = NULL;
  61     return exitcode;
  62 }