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Man page of GETGID
GETGID
Section: Linux Programmer's Manual (2)
Updated: 2015-08-08
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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
This page is part of release 4.09 of the Linux
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project.
A description of the project,
information about reporting bugs,
and the latest version of this page,
can be found at
https://www.kernel.org/doc/man-pages/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- ERRORS
-
- CONFORMING TO
-
- NOTES
-
- SEE ALSO
-
- COLOPHON
-
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