Copyright (c) 1983, 1991, 1993 The Regents of the University of California. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the fol...
NAMEgetgid getegid - get group process identification
SYNOPSISIn sys/types.h In unistd.h Ft gid_t Fn getgid void Ft gid_t Fn getegid void
DESCRIPTIONThe Fn getgid system call 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.