memcheck/tests/linux/sys-openat.c

   1
   2 /* The bug that gave rise to this is
   3    https://bugs.kde.org/show_bug.cgi?id=307103
   4 */
   5
   6 #define _GNU_SOURCE
   7 #include <fcntl.h>
   8 #include <unistd.h>
   9 int main (void)
  10 {
  11   int dfd = open ("/tmp", O_RDONLY);
  12   __attribute__((unused)) int fd1 = openat (dfd, "abc", O_RDONLY);
  13   /* This is fine, absolute path. */
  14   __attribute__((unused)) int fd2 = openat (0x12345678, "/tmp/abc", O_RDONLY);
  15   __attribute__((unused)) int fd3 = openat (AT_FDCWD, "abc", O_RDONLY);
  16   /* This is the only one that should warn. */
  17   __attribute__((unused)) int fd4 = openat (0x12345678, "abc", O_RDONLY);
  18   return 0;
  19 }