File: getgrouplist.cc

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (29 lines) | stat: -rw-r--r-- 498 bytes parent folder | download | duplicates (10) 
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
 
// RUN: %clangxx -O0 -g %s -o %t && %run %t

#include <stdlib.h>
#include <unistd.h>
#include <grp.h>

int main(void) {
  gid_t *groups;
  gid_t nobody;
  int ngroups;

  ngroups = sysconf(_SC_NGROUPS_MAX);
  groups = (gid_t *)malloc(ngroups * sizeof(gid_t));
  if (!groups)
    exit(1);

  if (gid_from_group("nobody", &nobody) == -1)
    exit(1);

  if (getgrouplist("nobody", nobody, groups, &ngroups))
    exit(1);

  if (groups && ngroups) {
    free(groups);
    exit(0);
  }

  return -1;
}