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