NAME
getgid, getegid - get group identity
SYNOPSIS
#include <unistd.h>
#include <sys/types.h>
gid_t getgid(void);
gid_t getegid(void);
DESCRIPTION
R getgid ()
returns the real group ID of the current process.
R getegid ()
returns the effective group ID of the current process.
When a normal program is executed, the effective and real group ID of
the process are set to the group ID of the user executing the file.
When a set ID program is executed the real group ID is set to the
group of the calling user and the effective user ID corresponds to the
set group ID bit on the file being executed.
ERRORS
These functions are always successful.
CONFORMING TO
POSIX.1-2001, 4.3BSD
SEE ALSO
