unlockpt man page on Manjaro

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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 corre‐
       sponding to the master pseudoterminal referred to by fd.

       unlockpt() should be called before opening the slave side  of  a	 pseu‐
       doterminal.

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 pseudoterminal.

VERSIONS
       unlockpt() is provided in glibc since version 2.1.

ATTRIBUTES
   Multithreading (see pthreads(7))
       The unlockpt() function is thread-safe.

CONFORMING TO
       POSIX.1-2001.

SEE ALSO
       grantpt(3), posix_openpt(3), ptsname(3), pts(4), pty(7)

COLOPHON
       This page is part of release 3.65 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/.

				  2013-12-09			   UNLOCKPT(3)
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