getgid32(2)
NAME
getgid, getegid - get group identity
SYNOPSIS
#include <unistd.h>
#include <sys/types.h>
gid_t getgid(void);
gid_t getegid(void);
DESCRIPTION
getgid() returns the real group ID of the calling process.
getegid() returns the effective group ID of the calling process.
ERRORS
These functions are always successful.
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, 4.3BSD.
NOTES
The original Linux getgid() and getegid() system calls supported only
16-bit group IDs. Subsequently, Linux 2.4 added getgid32() and
getegid32(), supporting 32-bit IDs. The glibc getgid() and getegid()
wrapper functions transparently deal with the variations across kernel
versions.
SEE ALSO
getresgid(2), setgid(2), setregid(2), credentials(7)
COLOPHON
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