NAME
groupmember —
checks if credentials mandate some
group membership
SYNOPSIS
#include
<sys/param.h>
#include <sys/ucred.h>
bool
groupmember(gid_t
gid, struct ucred
*cred);
bool
realgroupmember(gid_t
gid, struct ucred
*cred);
DESCRIPTION
The
groupmember()
function checks if credentials cred indicate that the
associated subject or object is a member of the group designated by the
group ID gid.
Considered groups in cred are the effective and supplementary groups. The real group is not taken into account.
Function
realgroupmember()
works the same except that it considers instead the real and supplementary
groups, and not the effective one.
RETURN VALUES
The groupmember() and
realgroupmember() functions return
true if the given credentials indicate membership of
the group gid, or false
otherwise.
SEE ALSO
AUTHORS
This manual page was initially written by Chad David <davidc@acns.ab.ca> and was revised by Olivier Certner <olce.freebsd@certner.fr>.