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)

Information

Source
Linux kernel
OS/version
Linux
Source updated
September 15, 2017
Page created
February 9, 2018
Page generated
December 2, 2018