getgid(2) — Справочная страница Linux

getgid(2)                  System Calls Manual                 getgid(2)

НАЗВАНИЕ

       getgid, getegid - get group identity

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #include <unistd.h>

       gid_t getgid(void);
       gid_t getegid(void);

ОПИСАНИЕ

       getgid() returns the real group ID of the calling process.

       getegid() returns the effective group ID of the calling process.

ОШИБКИ

       These functions are always successful and never modify errno.

ВЕРСИИ

       On Alpha, instead of a pair of getgid() and getegid() system
       calls, a single getxgid() system call is provided, which returns
       a pair of real and effective GIDs.  The glibc getgid() and
       getegid() wrapper functions transparently deal with this.  See
       syscall(2) for details regarding register mapping.

СТАНДАРТЫ

       POSIX.1-2008.

ИСТОРИЯ

       POSIX.1-2001, 4.3BSD.

       The original Linux getgid() and getegid() system calls supported
       only 16-bit group IDs.  Subsequently, Linux 2.4 added getgid32()
       and getegid32(), supporting 32-bit IDs.  The glibc getgid() and
       getegid() wrapper functions transparently deal with the
       variations across kernel versions.

СМОТРИТЕ ТАКЖЕ

       getresgid(2), setgid(2), setregid(2), credentials(7)

КОЛОФОН

       This page is part of the man-pages (Linux kernel and C library
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       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
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       man-pages@man7.org

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

Страницы, которые ссылаются на эту страницу: groups(1@@shadow-utils), ps(1), strace(1), getgroups(2), setgid(2), setreuid(2), syscalls(2), group_member(3), id_t(3type), credentials(7), signal-safety(7), user_namespaces(7)