NetBSD/usr.sbin/dhcp/statmsg/main.c

121 lines
3.8 KiB
C

/* main.c
System status updater...
!!!Boy, howdy, is this ever not guaranteed not to change!!! */
/*
* Copyright (c) 1997 The Internet Software Consortium.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of The Internet Software Consortium nor the names
* of its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM 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 INTERNET SOFTWARE CONSORTIUM 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.
*
* This software has been written for the Internet Software Consortium
* by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
* Enterprises. To learn more about the Internet Software Consortium,
* see ``http://www.vix.com/isc''. To learn more about Vixie
* Enterprises, see ``http://www.vix.com''.
*/
#ifndef lint
static char copyright[] =
"$Id: main.c,v 1.3 1998/10/08 14:13:25 jtk Exp $ Copyright (c) 1995, 1996 The Internet Software Consortium. All rights reserved.\n";
#endif /* not lint */
#include "dhcpd.h"
int log_priority;
int log_perror = 1;
int main (argc, argv, envp)
int argc;
char **argv;
char **envp;
{
struct sockaddr_un name;
int sysconf_fd;
struct sysconf_header hdr;
int status;
char *buf;
#ifdef SYSLOG_4_2
openlog ("statmsg", LOG_NDELAY);
log_priority = LOG_DAEMON;
#else
openlog ("statmsg", LOG_NDELAY, LOG_DAEMON);
#endif
#if !(defined (DEBUG) || defined (SYSLOG_4_2) || defined (__CYGWIN32__))
setlogmask (LOG_UPTO (LOG_INFO));
#endif
if (argc < 2)
error ("usage: statmsg type [data]");
hdr.length = 0;
if (!strcmp (argv [1], "network-location-changed"))
hdr.type = NETWORK_LOCATION_CHANGED;
else if (!strcmp (argv [1], "release-current-dhcp-leases"))
hdr.type = RELEASE_CURRENT_DHCP_LEASES;
else
error ("unknown status message type %s", argv [1]);
sysconf_fd = socket (AF_UNIX, SOCK_STREAM, 0);
if (sysconf_fd < 0)
error ("unable to create sysconf socket: %m");
/* XXX for now... */
name.sun_family = PF_UNIX;
strcpy (name.sun_path, "/var/run/sysconf");
name.sun_len = ((sizeof name) - (sizeof name.sun_path) +
strlen (name.sun_path));
if (connect (sysconf_fd, (struct sockaddr *)&name, name.sun_len) < 0)
error ("can't connect to sysconf socket: %m");
status = write (sysconf_fd, &hdr, sizeof hdr);
if (status < 0)
error ("sysconf: %m");
if (status < sizeof (hdr))
error ("sysconf: short write");
if (hdr.length) {
status = write (sysconf_fd, buf, hdr.length);
if (status < 0)
error ("sysconf payload write: %m");
if (status != hdr.length)
error ("sysconf payload: short write");
}
exit (0);
}
void cleanup ()
{
}