Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #455
Difficulty: Medium
Java was originally developed at Oracle starting in December 1990.
True or False?
Linux & Unix Commands - Search Man Pages

setregid(2) [bsd man page]

SETREGID(2)							System Calls Manual						       SETREGID(2)

NAME
setregid - set real and effective group ID SYNOPSIS
setregid(rgid, egid) int rgid, egid; DESCRIPTION
The real and effective group ID's of the current process are set to the arguments. Unprivileged users may change the real group ID to the effective group ID and vice-versa; only the super-user may make other changes. Supplying a value of -1 for either the real or effective group ID forces the system to substitute the current ID in place of the -1 parame- ter. RETURN VALUE
Upon successful completion, a value of 0 is returned. Otherwise, a value of -1 is returned and errno is set to indicate the error. ERRORS
[EPERM] The current process is not the super-user and a change other than changing the effective group-id to the real group-id was specified. SEE ALSO
getgid(2), setreuid(2), setgid(3) 4.2 Berkeley Distribution May 15, 1985 SETREGID(2)

Check Out this Related Man Page

SETREGID(2)						      BSD System Calls Manual						       SETREGID(2)

NAME
setregid -- set real and effective group ID LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <unistd.h> int setregid(gid_t rgid, gid_t egid); DESCRIPTION
The real and effective group ID's of the current process are set to the arguments. If the real group ID is changed, the saved group ID is changed to the new value of the effective group ID. Unprivileged users may change the real group ID to the effective group ID and vice-versa; only the super-user may make other changes. Supplying a value of -1 for either the real or effective group ID forces the system to substitute the current ID in place of the -1 argument. The setregid() system call was intended to allow swapping the real and effective group IDs in set-group-ID programs to temporarily relinquish the set-group-ID value. This system call did not work correctly, and its purpose is now better served by the use of the setegid(2) system call. When setting the real and effective group IDs to the same value, the standard setgid() system call is preferred. RETURN VALUES
The setregid() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indi- cate the error. ERRORS
[EPERM] The current process is not the super-user and a change other than changing the effective group-id to the real group-id was specified. SEE ALSO
getgid(2), issetugid(2), setegid(2), setgid(2), setuid(2) HISTORY
The setregid() system call appeared in 4.2BSD. BSD
April 16, 1994 BSD

2 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Help needed in extracting text present between two headers in .txt file

Hi All, Please help me out in fllowing problem. I have text file which contains the data in following format. Contents of file.txt are setregid02 Test that setregid() fails and sets the proper errno values when a non-root user attemps to change the real or effective... (2 Replies)
Discussion started by: varshit
2 Replies

2. UNIX for Dummies Questions & Answers

Combine Both Output from the awk Script

Hi, Is there anyway to combine output from the awk scripting. file01.txt: AUE_CHMOD AUE_CHOWN AUE_CHROOT AUE_CONNECT AUE_ACCEPT AUE_FCHOWN AUE_FCHMOD AUE_SETREUID AUE_SETREGID AUE_FCHROOT AUE_PFEXEC AUE_SETUID AUE_NICE AUE_SETGID (9 Replies)
Discussion started by: alvinoo
9 Replies

Featured Tech Videos