Provided by: freebsd-manpages_7.2-1_all
groupmember - checks group set for a group ID
groupmember(gid_t gid, struct ucred *cred);
The groupmember() function checks to see if the given gid is in the group
set of the credentials.
Its arguments are:
gid The group ID to check for.
cred The credentials to search for the group in.
If the gid is found, 1 is returned; otherwise, 0 is returned.
This manual page was written by Chad David 〈firstname.lastname@example.org〉.