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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-24 04:52:22 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-24 04:52:22 +0000 |
| commit | 3d08cd331c1adcf0d917392f7e527b3f00511748 (patch) | |
| tree | 312f0d1e1632f48862f044b8bb87e602dcffb5f9 /man/man2/getresuid.2 | |
| parent | Adding debian version 6.7-2. (diff) | |
| download | manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.tar.xz manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.zip | |
Merging upstream version 6.8.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man/man2/getresuid.2')
| -rw-r--r-- | man/man2/getresuid.2 | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/man/man2/getresuid.2 b/man/man2/getresuid.2 new file mode 100644 index 0000000..51faf87 --- /dev/null +++ b/man/man2/getresuid.2 @@ -0,0 +1,70 @@ +.\" Copyright (C) 1997 Andries Brouwer (aeb@cwi.nl) +.\" and Copyright (c) 2007, Michael Kerrisk <mtk.manpages@gmail.com> +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.\" Modified, 2003-05-26, Michael Kerrisk, <mtk.manpages@gmail.com> +.\" +.TH getresuid 2 2024-05-02 "Linux man-pages (unreleased)" +.SH NAME +getresuid, getresgid \- get real, effective, and saved user/group IDs +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.BR "#define _GNU_SOURCE" " /* See feature_test_macros(7) */" +.B #include <unistd.h> +.P +.BI "int getresuid(uid_t *" ruid ", uid_t *" euid ", uid_t *" suid ); +.BI "int getresgid(gid_t *" rgid ", gid_t *" egid ", gid_t *" sgid ); +.fi +.SH DESCRIPTION +.BR getresuid () +returns the real UID, the effective UID, and the saved set-user-ID +of the calling process, in the arguments +.IR ruid , +.IR euid , +and +.IR suid , +respectively. +.BR getresgid () +performs the analogous task for the process's group IDs. +.SH RETURN VALUE +On success, zero is returned. +On error, \-1 is returned, and +.I errno +is set to indicate the error. +.SH ERRORS +.TP +.B EFAULT +One of the arguments specified an address outside the calling program's +address space. +.SH STANDARDS +None. +These calls also appear on HP-UX and some of the BSDs. +.SH HISTORY +Linux 2.1.44, +glibc 2.3.2. +.P +The original Linux +.BR getresuid () +and +.BR getresgid () +system calls supported only 16-bit user and group IDs. +Subsequently, Linux 2.4 added +.BR getresuid32 () +and +.BR getresgid32 (), +supporting 32-bit IDs. +The glibc +.BR getresuid () +and +.BR getresgid () +wrapper functions transparently deal with the variations across kernel versions. +.SH SEE ALSO +.BR getuid (2), +.BR setresuid (2), +.BR setreuid (2), +.BR setuid (2), +.BR credentials (7) |