unlockpt(3) — Страница руководства Linux
unlockpt(3) Library Functions Manual unlockpt(3)
ИМЯ
unlockpt - unlock a pseudoterminal master/slave pair
БИБЛИОТЕКА
Standard C library (libc, -lc)
СИНТАКСИС
#define _XOPEN_SOURCE
#include <stdlib.h>
int unlockpt(int fd);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
unlockpt():
Since glibc 2.24:
_XOPEN_SOURCE >= 500
glibc 2.23 and earlier:
_XOPEN_SOURCE
ОПИСАНИЕ
The unlockpt() function unlocks the slave pseudoterminal device
corresponding to the master pseudoterminal referred to by the
file descriptor fd.
unlockpt() should be called before opening the slave side of a
pseudoterminal.
ЗНАЧЕНИЕ, ВОЗВРАЩАЕМОЕ ФУНКЦИЕЙ
When successful, unlockpt() returns 0. Otherwise, it returns -1
and sets errno to indicate the error.
ОШИБКИ
EBADF The fd argument is not a file descriptor open for writing.
EINVAL The fd argument is not associated with a master
pseudoterminal.
АТРИБУТЫ
For an explanation of the terms used in this section, see
attributes(7).
┌─────────────────────────────────────┬───────────────┬─────────┐
│ Interface │ Attribute │ Value │
├─────────────────────────────────────┼───────────────┼─────────┤
│ unlockpt() │ Thread safety │ MT-Safe │
└─────────────────────────────────────┴───────────────┴─────────┘
СТАНДАРТЫ
POSIX.1-2008.
ИСТОРИЯ
glibc 2.1. POSIX.1-2001.
СМОТРИТЕ ТАКЖЕ
grantpt(3), posix_openpt(3), ptsname(3), pts(4), pty(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
version of the page, or you believe there is a better or more up-
to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not
part of the original manual page), send a mail to
man-pages@man7.org
Linux man-pages 6.9.1 2024-05-02 unlockpt(3)
Страницы, которые ссылаются на эту страницу: TIOCPKT(2const), getpt(3), grantpt(3), posix_openpt(3), ptsname(3), pts(4), pty(7)
