1 /*
2 * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16 // Test that /proc/self gives correct TGID.
17 #undef NDEBUG
18 #include <assert.h>
19 #include <stdio.h>
20 #include <unistd.h>
21
22 #include "proc.h"
23
main(void)24 int main(void)
25 {
26 char buf1[64], buf2[64];
27 pid_t pid;
28 ssize_t rv;
29
30 pid = sys_getpid();
31 snprintf(buf1, sizeof(buf1), "%u", pid);
32
33 rv = readlink("/proc/self", buf2, sizeof(buf2));
34 assert(rv == strlen(buf1));
35 buf2[rv] = '\0';
36 assert(streq(buf1, buf2));
37
38 return 0;
39 }
40