Интерактивная система просмотра системных руководств (man-ов) getpt (3) getpt ( Русские man: Библиотечные вызовы ) >> getpt ( Linux man: Библиотечные вызовы )
NAME
getpt - open the pseudo-terminal master (PTM)
SYNOPSIS
#define _GNU_SOURCE
#include <stdlib.h >
int getpt(void);
DESCRIPTION
getpt ()
opens a pseudo-terminal master and returns its file descriptor.
It is equivalent to
open(/dev/ptmx, O_RDWR | O_NOCTTY);
on Linux systems, though the pseudo-terminal master is located
elsewhere on some systems that use GNU Libc.
RETURN VALUE
getpt ()
returns an open file descriptor upon successful completion.
Otherwise, it
returns -1 and sets
errno
to indicate the error.
ERRORS
getpt ()
can fail with various errors described in
open
VERSIONS
getpt ()
is provided in glibc since version 2.1.
CONFORMING TO
getpt ()
is glibc-specific;
use
posix_openpt
SEE ALSO
grantpt posix_openpt ptsname unlockpt ptmx 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
