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GETRESUID(2)               Linux Programmer's Manual              GETRESUID(2)

NAME
       getresuid, getresgid - get real, effective and saved user/group IDs

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() returns the real UID, the effective UID, and the saved set-
       user-ID of the calling process, in the arguments ruid, euid, and  suid,
       respectively.   getresgid()  performs  the  analogous task for the pro-
       cess's group IDs.

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.

VERSIONS
       These system calls appeared on Linux starting with kernel 2.1.44.

       The prototypes  are  given  by  glibc  since  version  2.3.2,  provided
       _GNU_SOURCE is defined.

CONFORMING TO
       These  calls are nonstandard; they also appear on HP-UX and some of the
       BSDs.

SEE ALSO
       getuid(2), setresuid(2), setreuid(2), setuid(2),  credentials(7),  fea-
       ture_test_macros(7)

COLOPHON
       This  page  is  part of release 3.25 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/.

Linux                             2007-12-28                      GETRESUID(2)
 

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Gedruckt am: 15.12.2017 18:48 GMT+0100 (2017-12-15T18:48:05+01:00)