scandir.cc revision 7c9150579ed0278492f51cc8434b1d63a44b9bd1 
1// RUN: %clangxx_msan -O0 %s -o %t && %run %t %p
2// RUN: %clangxx_msan -O0 -D_FILE_OFFSET_BITS=64 %s -o %t && %run %t %p
3// RUN: %clangxx_msan -O3 %s -o %t && %run %t %p
4
5#include <assert.h>
6#include <glob.h>
7#include <stdio.h>
8#include <stdlib.h>
9#include <string.h>
10#include <errno.h>
11
12#include <sys/stat.h>
13#include <sys/types.h>
14#include <dirent.h>
15#include <unistd.h>
16
17#include <sanitizer/msan_interface.h>
18
19
20static int my_filter(const struct dirent *a) {
21  assert(__msan_test_shadow(&a, sizeof(a)) == (size_t)-1);
22  printf("%s\n", a->d_name);
23  __msan_print_shadow(a, a->d_reclen);
24  assert(__msan_test_shadow(a, a->d_reclen) == (size_t)-1);
25  printf("%s\n", a->d_name);
26  return strlen(a->d_name) == 3 && a->d_name[2] == 'b';
27}
28
29static int my_compar(const struct dirent **a, const struct dirent **b) {
30  assert(__msan_test_shadow(a, sizeof(*a)) == (size_t)-1);
31  assert(__msan_test_shadow(*a, (*a)->d_reclen) == (size_t)-1);
32  assert(__msan_test_shadow(b, sizeof(*b)) == (size_t)-1);
33  assert(__msan_test_shadow(*b, (*b)->d_reclen) == (size_t)-1);
34  if ((*a)->d_name[1] == (*b)->d_name[1])
35    return 0;
36  return ((*a)->d_name[1] < (*b)->d_name[1]) ? 1 : -1;
37}
38
39int main(int argc, char *argv[]) {
40  assert(argc == 2);
41  char buf[1024];
42  snprintf(buf, sizeof(buf), "%s/%s", argv[1], "scandir_test_root/");
43
44  struct dirent **d;
45  int res = scandir(buf, &d, my_filter, my_compar);
46  assert(res == 2);
47  assert(__msan_test_shadow(&d, sizeof(*d)) == (size_t)-1);
48  for (int i = 0; i < res; ++i) {
49    assert(__msan_test_shadow(&d[i], sizeof(d[i])) == (size_t)-1);
50    assert(__msan_test_shadow(d[i], d[i]->d_reclen) == (size_t)-1);
51  }
52
53  assert(strcmp(d[0]->d_name, "bbb") == 0);
54  assert(strcmp(d[1]->d_name, "aab") == 0);
55  return 0;
56}
57