mirror of https://github.com/mkerrisk/man-pages
66 lines
2.2 KiB
Groff
66 lines
2.2 KiB
Groff
.\" Hey Emacs! This file is -*- nroff -*- source.
|
|
.\"
|
|
.\" Copyright (C) 1997 Andries Brouwer (aeb@cwi.nl)
|
|
.\"
|
|
.\" Permission is granted to make and distribute verbatim copies of this
|
|
.\" manual provided the copyright notice and this permission notice are
|
|
.\" preserved on all copies.
|
|
.\"
|
|
.\" Permission is granted to copy and distribute modified versions of this
|
|
.\" manual under the conditions for verbatim copying, provided that the
|
|
.\" entire resulting derived work is distributed under the terms of a
|
|
.\" permission notice identical to this one.
|
|
.\"
|
|
.\" Since the Linux kernel and libraries are constantly changing, this
|
|
.\" manual page may be incorrect or out-of-date. The author(s) assume no
|
|
.\" responsibility for errors or omissions, or for damages resulting from
|
|
.\" the use of the information contained herein. The author(s) may not
|
|
.\" have taken the same level of care in the production of this manual,
|
|
.\" which is licensed free of charge, as they might when working
|
|
.\" professionally.
|
|
.\"
|
|
.\" Formatted or processed versions of this manual, if unaccompanied by
|
|
.\" the source, must acknowledge the copyright and authors of this work.
|
|
.\"
|
|
.\" Modified, 2003-05-26, Michael Kerrisk, <mtk-manpages@gmx.net>
|
|
.TH GETRESUID 2 2003-05-26 "Linux 2.4" "Linux Programmer's Manual"
|
|
.SH NAME
|
|
getresuid, getresgid \- get real, effective and saved user or group ID
|
|
.SH SYNOPSIS
|
|
.B #define _GNU_SOURCE
|
|
.br
|
|
.B #include <unistd.h>
|
|
.sp
|
|
.BI "int getresuid(uid_t *" ruid ", uid_t *" euid ", uid_t *" suid );
|
|
.br
|
|
.BI "int getresgid(gid_t *" rgid ", gid_t *" egid ", gid_t *" sgid );
|
|
.SH DESCRIPTION
|
|
.BR getresuid ()
|
|
and
|
|
.BR getresgid ()
|
|
(both introduced in Linux 2.1.44)
|
|
get the real UID, effective UID, and saved set-user-ID (resp. group ID's)
|
|
of the current process.
|
|
.SH "RETURN VALUE"
|
|
On success, zero is returned.
|
|
On error, \-1 is returned, and
|
|
.I errno
|
|
is set appropriately.
|
|
.SH ERRORS
|
|
.TP
|
|
.B EFAULT
|
|
One of the arguments specified an address outside the calling program's
|
|
address space.
|
|
.SH "CONFORMING TO"
|
|
These calls are non-standard;
|
|
they also appear on HP-UX and some of the BSDs.
|
|
|
|
The prototype is given by glibc since version 2.3.2
|
|
provided _GNU_SOURCE is defined.
|
|
.SH "SEE ALSO"
|
|
.BR getuid (2),
|
|
.BR setresuid (2),
|
|
.BR setreuid (2),
|
|
.BR setuid (2),
|
|
.BR feature_test_macros (7)
|