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/*
* Copyright (c) 2005 Stefan Walter
* Copyright (c) 2011 Collabora Ltd.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the
* above copyright notice, this list of conditions and
* the following disclaimer in the documentation and/or
* other materials provided with the distribution.
* * The names of contributors to this software may not be
* used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
*
* CONTRIBUTORS
* Stef Walter <stef@memberwebs.com>
*/
#include "config.h"
static struct pollfd *poll_fds = NULL;
static int n_poll_fds = 0;
static int signal_pipe[2] = { -1, -1 };
static int
nonblock_fd (int fd)
{
int flags;
if ((flags = fcntl (fd, F_GETFL)) < 0)
return -1;
if (!(flags & O_NONBLOCK)) {
flags |= O_NONBLOCK;
if (fcntl(fd, F_SETFL, flags) < 0)
return -1;
}
return 0;
}
static void
signal_handler (int sig)
{
int save_errno = errno;
write (signal_pipe[1], &sig, sizeof (sig));
errno = save_errno;
}
static void
signal_setup (void)
{
sigset_t ss;
struct sigaction sa;
if (pipe (signal_pipe) < 0)
fatal ("couldn't signal create pipe: %s", strerror (errno));
if (nonblock_fd (signal_pipe[0]) < 0 || nonblock_fd (signal_pipe[1]))
fatal ("couldn't change signal pipe to non-blocking: %s", strerror (errno));
if (sigemptyset (&ss) < 0 ||
sigaddset (&ss, SIG_HUP) < 0 ||
sigaddset (&ss, SIG_TERM) < 0 ||
sigaddset (&ss, SIG_QUIT) < 0 ||
sigprocmask (SIG_UNBLOCK, &ss, NULL) < 0)
fatal ("couldn't unblock signals: %s", strerror (errno));
memset (&sa, 0, sizeof(sa));
sa.sa_handler = signal_handler;
sigemptyset (&sa.sa_mask);
sa.sa_flags = SA_RESTART;
if (sigaction (SIG_HUP, &sa, NULL) < 0 ||
sigaction (SIG_TERM, &sa, NULL) < 0 ||
sigaction (SIG_QUIT, &sa, NULL) < 0)
fatal ("couldn't install signal handlers: %s", strerror (errno));
}
int
main (int argc,
char *argv[])
{
Setup logging.
signal_setup ();
if (daemonize && daemon(0, 0) == -1) {
fatal ("couldn't run httpauth as daemon: %s", strerror (errno));
return 1;
}
Start the main loop.
}
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