group_member(3)
| GROUP_MEMBER(3) | Linux Programmer's Manual | GROUP_MEMBER(3) |
NAME
group_member - test whether a process is in a group
SYNOPSIS
#include <unistd.h>
int group_member(gid_t gid);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
group_member():
_GNU_SOURCE
DESCRIPTION
The group_member() function tests whether any of the caller's supplementary group IDs (as returned by getgroups(2)) matches gid.
RETURN VALUE
The group_member() function returns nonzero if any of the caller's supplementary group IDs matches gid, and zero otherwise.
CONFORMING TO
This function is a nonstandard GNU extension.
SEE ALSO
| 2021-03-22 | GNU |