File: getgroupmembership.cpp

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-6~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,418,812 kB
  • sloc: cpp: 5,290,827; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,900; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,892; xml: 953; cs: 573; fortran: 539
file content (32 lines) | stat: -rw-r--r-- 550 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
30
31
32
 
// RUN: %clangxx -O0 -g %s -o %t && %run %t

// XFAIL: netbsd && msan

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

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

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

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

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

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

  return -1;
}