tcgetsid(3) — Справочная страница Linux

tcgetsid(3)             Library Functions Manual             tcgetsid(3)

ИМЯ

       tcgetsid - get session ID

БИБЛИОТЕКА

       Standard C library (libc, -lc)

СИНТАКСИС

       #define _XOPEN_SOURCE 500        /* See feature_test_macros(7) */
       #include <termios.h>

       pid_t tcgetsid(int fd);

ОПИСАНИЕ

       The function tcgetsid() returns the session ID of the current
       session that has the terminal associated to fd as controlling
       terminal.  This terminal must be the controlling terminal of the
       calling process.

ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ

       When fd refers to the controlling terminal of our session, the
       function tcgetsid() will return the session ID of this session.
       Otherwise, -1 is returned, and errno is set to indicate the
       error.

ОШИБКИ

       EBADF  fd is not a valid file descriptor.

       ENOTTY The calling process does not have a controlling terminal,
              or it has one but it is not described by fd.

АТРИБУТЫ

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌─────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                           │ Attribute     │ Value   │
       ├─────────────────────────────────────┼───────────────┼─────────┤
       │ tcgetsid()                          │ Thread safety │ MT-Safe │
       └─────────────────────────────────────┴───────────────┴─────────┘

СТАНДАРТЫ

       POSIX.1-2008.

ИСТОРИЯ

       glibc 2.1.  POSIX.1-2001.

       This function is implemented via the TIOCGSID ioctl(2), present
       since Linux 2.1.71.

СМОТРИТЕ ТАКЖЕ

       getsid(2)

КОЛОФОН

       This page is part of the man-pages (Linux kernel and C library
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       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
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       man-pages@man7.org

Linux man-pages 6.9.1          2024-05-02                    tcgetsid(3)

Страницы, которые ссылаются на эту страницу: setsid(2), TIOCSPGRP(2const), credentials(7)