blob: e140720b5601160d938a8ce76ee93de33c9b4603 (
plain)
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
|
// RUN: %clang -O0 %s -o %t && %run %t
#include <assert.h>
#include <fcntl.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
int main(int argc, char **argv) {
char symlink_path[NAME_MAX];
snprintf(symlink_path, sizeof(symlink_path), "%s_%d.symlink", argv[0],
getpid());
int res = symlink(argv[0], symlink_path);
assert(!res);
char readlink_path[NAME_MAX];
ssize_t res2 = readlink(symlink_path, readlink_path, sizeof(readlink_path));
assert(res2 >= 0);
readlink_path[res2] = '\0';
assert(!strcmp(readlink_path, argv[0]));
char readlinkat_path[NAME_MAX];
res2 = readlinkat(AT_FDCWD, symlink_path, readlinkat_path,
sizeof(readlink_path));
assert(res2 >= 0);
readlinkat_path[res2] = '\0';
assert(!strcmp(readlinkat_path, argv[0]));
return 0;
}
|
