compiler-rt/test/msan/Linux/getresid.cpp

   1 // RUN: %clangxx_msan -O0 %s -o %t && %run %t %p 2>&1
   2 // RUN: %clangxx_msan -O0 -D_FILE_OFFSET_BITS=64 %s -o %t && %run %t %p 2>&1
   3 // RUN: %clangxx_msan -O3 %s -o %t && %run %t %p 2>&1
   4
   5 #include <assert.h>
   6 #include <unistd.h>
   7
   8 #include <sanitizer/msan_interface.h>
   9
  10 int main(int argc, char *argv[]) {
  11   uid_t uids[6];
  12   assert(0 == __msan_test_shadow(uids, 6 * sizeof(uid_t)));
  13   assert(0 == getresuid(&uids[0], &uids[2], &uids[4]));
  14   for (int i = 0; i < 3; i++)
  15     assert(sizeof(uid_t) ==
  16            __msan_test_shadow(uids + 2 * i, 2 * sizeof(uid_t)));
  17
  18   gid_t gids[6];
  19   assert(0 == __msan_test_shadow(gids, 6 * sizeof(gid_t)));
  20   assert(0 == getresgid(&gids[0], &gids[2], &gids[4]));
  21   for (int i = 0; i < 3; i++)
  22     assert(sizeof(gid_t) ==
  23            __msan_test_shadow(gids + 2 * i, 2 * sizeof(gid_t)));
  24   return 0;
  25 }