centos man page for getpt

Query: getpt

OS: centos

Section: 3

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

GETPT(3)						     Linux Programmer's Manual							  GETPT(3)

NAME
getpt - open the pseudoterminal master (PTM)
SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */ #include <stdlib.h> int getpt(void);
DESCRIPTION
getpt() opens a pseudoterminal master and returns its file descriptor. It is equivalent to open(/dev/ptmx, O_RDWR | O_NOCTTY); on Linux systems, though the pseudoterminal 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(2).
VERSIONS
getpt() is provided in glibc since version 2.1.
CONFORMING TO
getpt() is glibc-specific; use posix_openpt(3) instead.
SEE ALSO
grantpt(3), posix_openpt(3), ptsname(3), unlockpt(3), ptmx(4), pty(7)
COLOPHON
This page is part of release 3.53 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/.
GNU
2010-09-10 GETPT(3)
Related Man Pages
getpt(3) - linux
getpt(3) - centos
posix_openpt(3) - centos
getpt(3) - x11r4
getpt(3) - netbsd
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