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#include <sys/types.h>
#include <limits.h>
#include <signal.h>
#define TEST_NAME "sodium_utils3"
#include "cmptest.h"
#ifdef __SANITIZE_ADDRESS__
# error This test requires address sanitizer to be off
#endif
static void segv_handler(int sig)
{
printf("Intentional segfault / bus error caught\n");
printf("OK\n");
#ifdef SIGSEGV
signal(SIGSEGV, SIG_DFL);
#endif
#ifdef SIGBUS
signal(SIGBUS, SIG_DFL);
#endif
#ifdef SIGABRT
signal(SIGABRT, SIG_DFL);
#endif
exit(0);
}
int main(void)
{
void *buf;
size_t size;
#ifdef SIGSEGV
signal(SIGSEGV, segv_handler);
#endif
#ifdef SIGBUS
signal(SIGBUS, segv_handler);
#endif
#ifdef SIGABRT
signal(SIGABRT, segv_handler);
#endif
size = randombytes_uniform(100000U);
buf = sodium_malloc(size);
sodium_mprotect_noaccess(buf);
sodium_mprotect_readwrite(buf);
sodium_memzero(((unsigned char *)buf) - 8, 8U);
sodium_mprotect_readonly(buf);
sodium_free(buf);
printf("Underflow not caught\n");
return 0;
}