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getresuid() - Unix, Linux System Call
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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 UID, effective UID, and saved set-user-ID (resp. group IDs)
of the current process.
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and
errno is set appropriately.
ERRORS
Tag | Description |
EFAULT |
One of the arguments specified an address outside the calling programs
address space.
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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.
SEE ALSO
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