getresuid(2) — Справочная страница Linux

getresuid(2)               System Calls Manual              getresuid(2)

ИМЯ

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

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #define _GNU_SOURCE         /* See feature_test_macros(7) */
       #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);

ОПИСАНИЕ

       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 process's group IDs.

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       On success, zero is returned.  On error, -1 is returned, and
       errno is set to indicate the error.

ОШИБКИ

       EFAULT One of the arguments specified an address outside the
              calling program's address space.

СТАНДАРТЫ

       None.  These calls also appear on HP-UX and some of the BSDs.

ИСТОРИЯ

       Linux 2.1.44, glibc 2.3.2.

       The original Linux getresuid() and getresgid() system calls
       supported only 16-bit user and group IDs.  Subsequently, Linux
       2.4 added getresuid32() and getresgid32(), supporting 32-bit IDs.
       The glibc getresuid() and getresgid() wrapper functions
       transparently deal with the variations across kernel versions.

СМОТРИТЕ ТАКЖЕ

       getuid(2), setresuid(2), setreuid(2), setuid(2), credentials(7)

КОЛОФОН

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
       fetched from
       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
       2024-06-26.  If you discover any rendering problems in this HTML
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       part of the original manual page), send a mail to
       man-pages@man7.org

Linux man-pages 6.9.1          2024-05-02                   getresuid(2)

Страницы, которые ссылаются на эту страницу: getgid(2), getuid(2), setresuid(2), syscalls(2), id_t(3type), credentials(7)