group_member(3) | Library Functions Manual | group_member(3) |
group_member - test whether a process is in a group
Standard C library (libc, -lc)
#include <unistd.h>
int group_member(gid_t gid);
group_member():
_GNU_SOURCE
The group_member() function tests whether any of the caller's supplementary group IDs (as returned by getgroups(2)) matches gid.
The group_member() function returns nonzero if any of the caller's supplementary group IDs matches gid, and zero otherwise.
This function is a nonstandard GNU extension.
2022-10-30 | Linux man-pages 6.03 |