int main(int argc, char **argv)
{
pthread_t thr;
pthread_attr_t attr;
fprintf(stderr,"crasher: " __TIME__ "!@\n");
fprintf(stderr,"crasher: init pid=%d tid=%d\n", getpid(), gettid());
if(argc > 1) {
if(!strcmp(argv[1],"nostack")) crashnostack();
if(!strcmp(argv[1],"ctest")) return ctest();
if(!strcmp(argv[1],"exit")) exit(1);
if(!strcmp(argv[1],"abort")) maybeabort();
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
pthread_create(&thr, &attr, test_thread, 0);
while(1) sleep(1);
} else {
crash1();
// *((int*) 0) = 42;
}
return 0;
}
void do_if (void)
{ header *cond;
int flag;
if (!udfon)
{ output("If only allowed in functions!\n"); error=111; return;
}
another : cond=scan(); if (error) return;
flag=ctest(cond); if (error) return;
if (!flag)
if (scan_else()) goto another;
}
static int do_action(const char* arg)
{
fprintf(stderr,"crasher: init pid=%d tid=%d\n", getpid(), gettid());
if (!strncmp(arg, "thread-", strlen("thread-"))) {
return do_action_on_thread(arg + strlen("thread-"));
} else if (!strcmp(arg,"smash-stack")) {
return smash_stack(42);
} else if (!strcmp(arg,"stack-overflow")) {
overflow_stack(NULL);
} else if (!strcmp(arg,"nostack")) {
crashnostack();
} else if (!strcmp(arg,"ctest")) {
return ctest();
} else if (!strcmp(arg,"exit")) {
exit(1);
} else if (!strcmp(arg,"crash")) {
return crash(42);
} else if (!strcmp(arg,"abort")) {
maybeabort();
} else if (!strcmp(arg, "heap-usage")) {
abuse_heap();
}
fprintf(stderr, "%s OP\n", __progname);
fprintf(stderr, "where OP is:\n");
fprintf(stderr, " smash-stack overwrite a stack-guard canary\n");
fprintf(stderr, " stack-overflow recurse until the stack overflows\n");
fprintf(stderr, " heap-corruption cause a libc abort by corrupting the heap\n");
fprintf(stderr, " heap-usage cause a libc abort by abusing a heap function\n");
fprintf(stderr, " nostack crash with a NULL stack pointer\n");
fprintf(stderr, " ctest (obsoleted by thread-crash?)\n");
fprintf(stderr, " exit call exit(1)\n");
fprintf(stderr, " crash cause a SIGSEGV\n");
fprintf(stderr, " abort call abort()\n");
fprintf(stderr, "prefix any of the above with 'thread-' to not run\n");
fprintf(stderr, "on the process' main thread.\n");
return EXIT_SUCCESS;
}
static int do_action(const char* arg)
{
fprintf(stderr,"crasher: init pid=%d tid=%d\n", getpid(), gettid());
if (!strncmp(arg, "thread-", strlen("thread-"))) {
return do_action_on_thread(arg + strlen("thread-"));
} else if (!strcmp(arg, "SIGSEGV-non-null")) {
sigsegv_non_null();
} else if (!strcmp(arg, "smash-stack")) {
volatile int len = 128;
return smash_stack(&len);
} else if (!strcmp(arg, "stack-overflow")) {
overflow_stack(NULL);
} else if (!strcmp(arg, "nostack")) {
crashnostack();
} else if (!strcmp(arg, "ctest")) {
return ctest();
} else if (!strcmp(arg, "exit")) {
exit(1);
} else if (!strcmp(arg, "crash") || !strcmp(arg, "SIGSEGV")) {
return crash(42);
} else if (!strcmp(arg, "abort")) {
maybe_abort();
} else if (!strcmp(arg, "assert")) {
__assert("some_file.c", 123, "false");
} else if (!strcmp(arg, "assert2")) {
__assert2("some_file.c", 123, "some_function", "false");
} else if (!strcmp(arg, "fortify")) {
char buf[10];
__read_chk(-1, buf, 32, 10);
while (true) pause();
} else if (!strcmp(arg, "LOG_ALWAYS_FATAL")) {
LOG_ALWAYS_FATAL("hello %s", "world");
} else if (!strcmp(arg, "LOG_ALWAYS_FATAL_IF")) {
LOG_ALWAYS_FATAL_IF(true, "hello %s", "world");
} else if (!strcmp(arg, "SIGFPE")) {
raise(SIGFPE);
return EXIT_SUCCESS;
} else if (!strcmp(arg, "SIGTRAP")) {
raise(SIGTRAP);
return EXIT_SUCCESS;
} else if (!strcmp(arg, "heap-usage")) {
abuse_heap();
} else if (!strcmp(arg, "SIGSEGV-unmapped")) {
char* map = reinterpret_cast<char*>(mmap(NULL, sizeof(int), PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0));
munmap(map, sizeof(int));
map[0] = '8';
}
fprintf(stderr, "%s OP\n", __progname);
fprintf(stderr, "where OP is:\n");
fprintf(stderr, " smash-stack overwrite a stack-guard canary\n");
fprintf(stderr, " stack-overflow recurse until the stack overflows\n");
fprintf(stderr, " heap-corruption cause a libc abort by corrupting the heap\n");
fprintf(stderr, " heap-usage cause a libc abort by abusing a heap function\n");
fprintf(stderr, " nostack crash with a NULL stack pointer\n");
fprintf(stderr, " ctest (obsoleted by thread-crash?)\n");
fprintf(stderr, " exit call exit(1)\n");
fprintf(stderr, " abort call abort()\n");
fprintf(stderr, " assert call assert() without a function\n");
fprintf(stderr, " assert2 call assert() with a function\n");
fprintf(stderr, " fortify fail a _FORTIFY_SOURCE check\n");
fprintf(stderr, " LOG_ALWAYS_FATAL call LOG_ALWAYS_FATAL\n");
fprintf(stderr, " LOG_ALWAYS_FATAL_IF call LOG_ALWAYS_FATAL\n");
fprintf(stderr, " SIGFPE cause a SIGFPE\n");
fprintf(stderr, " SIGSEGV cause a SIGSEGV at address 0x0 (synonym: crash)\n");
fprintf(stderr, " SIGSEGV-non-null cause a SIGSEGV at a non-zero address\n");
fprintf(stderr, " SIGSEGV-unmapped mmap/munmap a region of memory and then attempt to access it\n");
fprintf(stderr, " SIGTRAP cause a SIGTRAP\n");
fprintf(stderr, "prefix any of the above with 'thread-' to not run\n");
fprintf(stderr, "on the process' main thread.\n");
return EXIT_SUCCESS;
}