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UNLOCKPT(3) | Linux Programmer's Manual | UNLOCKPT(3) |
NAME¶
unlockpt - unlock a pseudoterminal master/slave pair
SYNOPSIS¶
#define _XOPEN_SOURCE /* See feature_test_macros(7) */
#include <stdlib.h> int unlockpt(int fd);
DESCRIPTION¶
The unlockpt() function unlocks the slave pseudoterminal device corresponding to the master pseudoterminal referred to by fd.
unlockpt() should be called before opening the slave side of a pseudoterminal.
RETURN VALUE¶
When successful, unlockpt() returns 0. Otherwise, it returns -1 and sets errno appropriately.
ERRORS¶
VERSIONS¶
unlockpt() is provided in glibc since version 2.1.
CONFORMING TO¶
POSIX.1-2001.
SEE ALSO¶
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/.
2008-06-14 |