File: getgroupmembership.cpp

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 995,836 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
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;
}