Section (3) getpt
getpt — open the pseudoterminal master (PTM)
#define _GNU_SOURCE /* See feature_test_macros(7) */ #include <stdlib.h>
getpt() opens a
pseudoterminal master and returns its file descriptor. It is
open(/dev/ptmx, O_RDWR | O_NOCTTY);
on Linux systems, though the pseudoterminal master is located elsewhere on some systems that use GNU Libc.
getpt() returns an open file
descriptor upon successful completion. Otherwise, it returns
−1 and sets
indicate the error.
getpt() can fail with
various errors described in open(2).
For an explanation of the terms used in this section, see attributes(7).
getpt() is glibc-specific;
This page is part of release 5.04 of the Linux
man-pages project. A
description of the project, information about reporting bugs,
and the latest version of this page, can be found at
This man page was written by Jeremy Phelps <jphelpsnotreached.net>.
Redistribute and modify at will.