Интерактивная система просмотра системных руководств (man-ов) unlockpt (3) unlockpt ( Solaris man: Библиотечные вызовы ) unlockpt ( FreeBSD man: Библиотечные вызовы ) unlockpt ( Русские man: Библиотечные вызовы ) >> unlockpt ( Linux man: Библиотечные вызовы ) unlockpt ( POSIX man: Библиотечные вызовы )
NAME
unlockpt - unlock a pseudo-terminal master/slave pair
SYNOPSIS
#define _XOPEN_SOURCE
#include <stdlib.h >
int unlockpt(int fd );
DESCRIPTION
The
unlockpt ()
function unlocks the slave pseudo-terminal device
(pty) corresponding to the master pty referred to by
fd .
unlockpt ()
should be called before opening the slave side of a pty.
RETURN VALUE
When successful,
unlockpt ()
returns 0.
Otherwise, it returns -1 and sets
errno
appropriately.
ERRORS
EBADF
The
fd
argument is not a file descriptor open for writing.
EINVAL
The
fd
argument is not associated with a master pty.
VERSIONS
unlockpt ()
is provided in glibc since version 2.1.
CONFORMING TO
POSIX.1-2001.
SEE ALSO
grantpt posix_openpt ptsname pts feature_test_macros pty
COLOPHON
This page is part of release 3.14 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/.
Index
NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
VERSIONS
CONFORMING TO
SEE ALSO
COLOPHON
