EUIDACCESS
Section: Linux Programmer's Manual (3)
Updated: 2010-09-10
NAME
euidaccess, eaccess - check effective user's permissions for a file
SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <unistd.h>
int euidaccess(const char *pathname, int mode);
int eaccess(const char *pathname, int mode);
DESCRIPTION
Like
access(2),
euidaccess()
checks permissions and existence of the file identified by its argument
pathname.
However, whereas
access(2),
performs checks using the real user and group identifiers of the process,
euidaccess()
uses the effective identifiers.
mode
is a mask consisting of one or more of
R_OK, W_OK, X_OK and F_OK,
with the same meanings as for
access(2).
eaccess()
is a synonym for
euidaccess(),
provided for compatibility with some other systems.
RETURN VALUE
On success (all requested permissions granted), zero is returned.
On error (at least one bit in
mode
asked for a permission that is denied, or some other error occurred),
-1 is returned, and
errno
is set appropriately.
ERRORS
As for
access(2).
VERSIONS
The
eaccess()
function was added to glibc in version 2.4.
CONFORMING TO
These functions are nonstandard.
Some other systems have an
eaccess()
function.
SEE ALSO
access(2),
chmod(2),
chown(2),
faccessat(2),
open(2),
setgid(2),
setuid(2),
stat(2),
credentials(7),
path_resolution(7)
COLOPHON
This page is part of release 3.27 of the Linux
man-pages
project.
A description of the project,
and information about reporting bugs,
can be found at
http://www.kernel.org/doc/man-pages/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- VERSIONS
-
- CONFORMING TO
-
- SEE ALSO
-
- COLOPHON
-
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