ioctl.cpp
809 Bytes
// RUN: %clangxx_asan -O0 -g %s -o %t && %env_asan_opts=handle_ioctl=1 not %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O3 -g %s -o %t && %env_asan_opts=handle_ioctl=1 not %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O0 -g %s -o %t && %run %t
// RUN: %clangxx_asan -O3 -g %s -o %t && %run %t
#include <assert.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <unistd.h>
#if defined(__sun__) && defined(__svr4__)
#include <sys/filio.h>
#endif
int main(int argc, char **argv) {
int fd = socket(AF_INET, SOCK_DGRAM, 0);
int nonblock;
int res = ioctl(fd, FIONBIO, &nonblock + 1);
// CHECK: AddressSanitizer: stack-buffer-overflow
// CHECK: READ of size 4 at
// CHECK: {{#.* in main .*ioctl.cpp:}}[[@LINE-3]]
assert(res == 0);
close(fd);
return 0;
}