lib/asan/lit_tests/TestCases/ioctl.cc

   1 // RUN: %clangxx_asan -O0 -g %s -o %t && ASAN_OPTIONS=handle_ioctl=1 %t 2>&1 | %symbolize | FileCheck %s
   2 // RUN: %clangxx_asan -O3 -g %s -o %t && ASAN_OPTIONS=handle_ioctl=1 %t 2>&1 | %symbolize | FileCheck %s
   3
   4 // RUN: %clangxx_asan -O0 -g %s -o %t && %t
   5 // RUN: %clangxx_asan -O3 -g %s -o %t && %t
   6
   7 // See https://code.google.com/p/address-sanitizer/issues/detail?id=195
   8 // XFAIL: darwin
   9
  10 #include <assert.h>
  11 #include <stdlib.h>
  12 #include <sys/ioctl.h>
  13 #include <sys/socket.h>
  14 #include <unistd.h>
  15
  16 int main(int argc, char **argv) {
  17   int fd = socket(AF_INET, SOCK_DGRAM, 0);
  18
  19   int nonblock;
  20   int res = ioctl(fd, FIONBIO, &nonblock + 1);
  21   // CHECK: AddressSanitizer: stack-buffer-overflow
  22   // CHECK: READ of size 4 at
  23   // CHECK: #{{.*}} in main {{.*}}/ioctl.cc:[[@LINE-3]]
  24   assert(res == 0);
  25   close(fd);
  26   return 0;
  27 }