GETGID
Section: System Calls (2)
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BSD mandoc
BSD 4.2
NAME
getgid
getegid
- get group process identification
SYNOPSIS
Fd #include <sys/types.h>
Fd #include <unistd.h>
Ft gid_t
Fn getgid void
Ft gid_t
Fn getegid void
DESCRIPTION
The
Fn getgid
function returns the real group ID of the calling process,
Fn getegid
returns the effective group ID of the calling process.
The real group ID is specified at login time.
The real group ID is the group of the user who invoked the program.
As the effective group ID gives the process additional permissions
during the execution of
``set-group-ID
''
mode processes,
Fn getgid
is used to determine the real-user-id of the calling process.
ERRORS
The
Fn getgid
and
Fn getegid
functions are always successful, and no return value is reserved to
indicate an error.
SEE ALSO
getuid(2),
setregid(2),
setgid(3)
STANDARDS
Fn Getgid
and
Fn getegid
conform to
St -p1003.1-88 .
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- ERRORS
-
- SEE ALSO
-
- STANDARDS
-
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Time: 16:28:59 GMT, April 18, 2022