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RIOT/tests/ssp/main.c
Lucas Jenss 4710701405 tests/ssp: Fix on macOS while compiling w/ clang
On macOS using Apple LLVM version 9.0.0 this test would
not compile due to clang detecting the buffer overflow.
Since this test is all about having a buffer overflow, I
tricked clang into not detecting this anymore.

This loosely relates to #6473.
2017-10-30 10:53:46 +01:00

50 lines
992 B
C

/*
* Copyright (C) 2016 Kaspar Schleiser <kaspar@schleiser.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief ssp test application
*
* This test should crash badly when *not* using the ssp module, and panic if
* using it.
*
* @author Kaspar Schleiser <kaspar@schleiser.de>
*
* @}
*/
#include <stdio.h>
#include <string.h>
void test_func(void)
{
char buf[16];
/* clang will detect the buffer overflow
* and throw an error if we use `buf` directly */
void *buffer_to_confuse_compiler = buf;
/* cppcheck-suppress bufferAccessOutOfBounds
* (reason: deliberately overflowing stack) */
memset(buffer_to_confuse_compiler, 0, 32);
}
int main(void)
{
puts("calling stack corruption function");
test_func();
puts("back to main");
return 0;
}