noble (3) group_member.3.gz

Provided by: manpages-dev_6.7-2_all bug

NAME
       group_member - test whether a process is in a group


LIBRARY
       Standard C library (libc, -lc)


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.


STANDARDS
       GNU.


SEE ALSO
       getgid(2), getgroups(2), getgrouplist(3), group(5)