2014-10-21 22:00:33 +00:00
|
|
|
/*******************************************************************************
|
|
|
|
|
|
|
|
Copyright(C) Jonas 'Sortie' Termansen 2014, 2015.
|
|
|
|
|
|
|
|
This file is part of the Sortix C Library.
|
|
|
|
|
|
|
|
The Sortix C Library is free software: you can redistribute it and/or modify
|
|
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
|
|
the Free Software Foundation, either version 3 of the License, or (at your
|
|
|
|
option) any later version.
|
|
|
|
|
|
|
|
The Sortix C Library is distributed in the hope that it will be useful, but
|
|
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
|
|
|
License for more details.
|
|
|
|
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
|
|
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
2016-02-28 11:11:02 +00:00
|
|
|
ssp/__stack_chk_fail.c
|
2014-10-21 22:00:33 +00:00
|
|
|
Abnormally terminate the process on stack smashing.
|
|
|
|
|
|
|
|
*******************************************************************************/
|
|
|
|
|
|
|
|
#include <errno.h>
|
|
|
|
#include <fcntl.h>
|
|
|
|
#include <scram.h>
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
|
|
|
|
#include <__/wordsize.h>
|
|
|
|
|
2016-02-28 11:11:02 +00:00
|
|
|
#ifdef __is_sortix_libk
|
|
|
|
#include <libk.h>
|
2014-10-21 22:00:33 +00:00
|
|
|
#endif
|
|
|
|
|
|
|
|
#if __WORDSIZE == 32
|
|
|
|
#define STACK_CHK_GUARD 0x01234567
|
|
|
|
#elif __WORDSIZE == 64
|
|
|
|
#define STACK_CHK_GUARD 0x0123456789ABCDEF
|
|
|
|
#endif
|
|
|
|
|
2016-02-28 11:11:02 +00:00
|
|
|
#ifdef __is_sortix_libk
|
2014-10-21 22:00:33 +00:00
|
|
|
/* TODO: Have this filled in by the program loader. */
|
|
|
|
#else
|
|
|
|
/* TODO: Have this filled in by the boot loader. */
|
|
|
|
#endif
|
2016-02-28 11:11:02 +00:00
|
|
|
uintptr_t __stack_chk_guard = STACK_CHK_GUARD;
|
2014-10-21 22:00:33 +00:00
|
|
|
|
2016-02-28 11:11:02 +00:00
|
|
|
__attribute__((noreturn))
|
2014-10-21 22:00:33 +00:00
|
|
|
void __stack_chk_fail(void)
|
|
|
|
{
|
2016-02-28 11:11:02 +00:00
|
|
|
#ifdef __is_sortix_libk
|
|
|
|
libk_stack_chk_fail();
|
2014-10-21 22:00:33 +00:00
|
|
|
#else
|
2016-02-28 11:11:02 +00:00
|
|
|
scram(SCRAM_STACK_SMASH, NULL);
|
2014-10-21 22:00:33 +00:00
|
|
|
#endif
|
|
|
|
}
|