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getresuid(2) -- Linux man page
NAME
getresuid, getresgid - get real, effective and saved user or group ID
SYNOPSIS
#define _GNU_SOURCE
#include <unistd.h>
int getresuid(uid_t *ruid, uid_t *euid, uid_t *suid);
int getresgid(gid_t *rgid, gid_t *egid, gid_t *sgid);
DESCRIPTION
getresuid
and
getresgid
(both introduced in Linux 2.1.44)
get the real, effective and saved user ID's (resp. group ID's)
of the current process.
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and
errno
is set appropriately.
ERRORS
- EFAULT
-
One of the arguments specified an address outside the calling program's
address space.
CONFORMING TO
This call is Linux-specific.
The prototype is given by glibc since version 2.3.2
provided _GNU_SOURCE is defined.
SEE ALSO
getuid(2),
setuid(2),
setreuid(2),
setresuid(2)
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