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/***
This file is part of avahi.
avahi is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
avahi 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 Lesser General
Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with avahi; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/select.h>
#include <unistd.h>
#include <fcntl.h>
#include <assert.h>
#include "fdutil.h"
int avahi_set_cloexec(int fd) {
int n;
assert(fd >= 0);
if ((n = fcntl(fd, F_GETFD)) < 0)
return -1;
if (n & FD_CLOEXEC)
return 0;
return fcntl(fd, F_SETFD, n|FD_CLOEXEC);
}
int avahi_set_nonblock(int fd) {
int n;
assert(fd >= 0);
if ((n = fcntl(fd, F_GETFL)) < 0)
return -1;
if (n & O_NONBLOCK)
return 0;
return fcntl(fd, F_SETFL, n|O_NONBLOCK);
}
int avahi_wait_for_write(int fd) {
fd_set fds;
int r;
FD_ZERO(&fds);
FD_SET(fd, &fds);
if ((r = select(fd+1, NULL, &fds, NULL, NULL)) < 0)
return -1;
assert(r > 0);
return 0;
}
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