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- /*
- * Copyright (c) 1983, 1988 Regents of the University of California.
- * 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
- */
-
- #ifndef lint
- char copyright[] =
- "@(#) Copyright (c) 1983, 1988 Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@(#)implogd.c 5.10 (Berkeley) 3/2/91";
- #endif /* not lint */
-
- #include <sys/param.h>
- #include <sys/time.h>
- #include <sys/socket.h>
- #include <sys/syslog.h>
- #include <sys/file.h>
-
- #include <net/if.h>
-
- #include <netinet/in.h>
- #include <netimp/if_imp.h>
-
- #include <sgtty.h>
- #include "pathnames.h"
-
- /*
- * Socket address, internet style, with
- * unused space taken by timestamp and packet
- * size.
- */
- struct sockstamp {
- short sin_family;
- u_short sin_port;
- struct in_addr sin_addr;
- time_t sin_time;
- int sin_len;
- };
-
- main()
- {
- register int len, log, s;
- struct sockstamp from;
- int fromlen;
- u_char request[1024];
- time_t time();
-
- openlog("implogd", LOG_PID|LOG_ODELAY|LOG_PERROR, LOG_DAEMON);
- log = open(_PATH_IMPLOG, O_CREAT|O_WRONLY|O_APPEND, 0644);
- if (log < 0) {
- syslog(LOG_ERR, "%s: %m\n", _PATH_IMPLOG);
- exit(1);
- }
- from.sin_time = time((time_t *)NULL);
- from.sin_len = sizeof(time_t);
- (void)write(log, (char *)&from, sizeof(from));
- if ((s = socket(AF_IMPLINK, SOCK_RAW, 0)) < 0) {
- syslog(LOG_ERR, "socket: %m\n");
- exit(1);
- }
- #ifndef DEBUG
- {
- register int i, tt;
-
- if (fork())
- exit(0);
- for (i = 0; i < 10; i++)
- if (i != log && i != s)
- (void) close(i);
- (void) open("/", O_RDONLY, 0);
- (void) dup2(0, 1);
- (void) dup2(0, 2);
- tt = open(_PATH_TTY, O_RDWR, 0);
- if (tt > 0) {
- ioctl(tt, TIOCNOTTY, 0);
- (void)close(tt);
- }
- }
- #endif
- for (fromlen = sizeof(from);;) {
- len = recvfrom(s, request, sizeof(request), 0,
- (struct sockaddr *)&from, &fromlen);
- if (len < 0) {
- syslog(LOG_ERR, "recvfrom: %m\n");
- continue;
- }
- if (len == 0 || len > IMPMTU) /* sanity */
- continue;
- from.sin_len = len;
- from.sin_time = time((time_t *)NULL);
- (void)write(log, (char *)&from, sizeof(from));
- (void)write(log, request, len);
- }
- /*NOTREACHED*/
- }
-