Mercurial > gnulib
view lib/unlockpt.c @ 40225:1e0e3e621a8d
di-set: Fix memory leak.
* lib/di-set.c (di_set_free): Free the ino_map through ino_map_free(),
not free().
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sun, 10 Mar 2019 14:18:37 +0100 |
parents | b06060465f09 |
children |
line wrap: on
line source
/* Unlock the slave side of a pseudo-terminal from its master side. Copyright (C) 1998, 2010-2019 Free Software Foundation, Inc. Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> #include <stdlib.h> #include <fcntl.h> #include <unistd.h> int unlockpt (int fd) { /* Platforms which have the TIOCSPTLCK ioctl (Linux) already have the unlockpt function. */ #if HAVE_REVOKE /* Mac OS X 10.3, OpenBSD 3.8 do not have the unlockpt function, but they have revoke(). */ char *name = ptsname (fd); if (name == NULL) return -1; return revoke (name); #else /* Assume that the slave side of a pseudo-terminal is already unlocked by default. */ if (fcntl (fd, F_GETFD) < 0) return -1; return 0; #endif }