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- /*
- * Copyright (c) 1980, 1986 The 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) 1980, 1986 The Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@(#)reboot.c 5.11 (Berkeley) 2/27/91";
- #endif /* not lint */
-
- #include <sys/types.h>
- #include <sys/time.h>
- #include <sys/syslog.h>
- #include <sys/syscall.h>
- #include <sys/reboot.h>
- #include <sys/signal.h>
- #include <pwd.h>
- #include <stdio.h>
- #include <errno.h>
-
- main(argc, argv)
- int argc;
- char **argv;
- {
- int howto;
- register char *argp;
- register i;
- register ok = 0;
- register qflag = 0;
- int needlog = 1;
- char *user, *getlogin();
- struct passwd *pw;
-
- openlog("reboot", 0, LOG_AUTH);
- argc--, argv++;
- howto = 0;
- while (argc > 0) {
- if (!strcmp(*argv, "-q"))
- qflag++;
- else if (!strcmp(*argv, "-n"))
- howto |= RB_NOSYNC;
- else if (!strcmp(*argv, "-l"))
- needlog = 0;
- else {
- fprintf(stderr,
- "usage: reboot [ -n ][ -q ]\n");
- exit(1);
- }
- argc--, argv++;
- }
-
- if (needlog) {
- user = getlogin();
- if (user == (char *)0 && (pw = getpwuid(getuid())))
- user = pw->pw_name;
- if (user == (char *)0)
- user = "root";
- syslog(LOG_CRIT, "rebooted by %s", user);
- }
-
- signal(SIGHUP, SIG_IGN); /* for remote connections */
- if (kill(1, SIGTSTP) == -1) {
- fprintf(stderr, "reboot: can't idle init\n");
- exit(1);
- }
- sleep(1);
- (void) kill(-1, SIGTERM); /* one chance to catch it */
- sleep(5);
-
- if (!qflag) for (i = 1; ; i++) {
- if (kill(-1, SIGKILL) == -1) {
- extern int errno;
-
- if (errno == ESRCH)
- break;
-
- perror("reboot: kill");
- kill(1, SIGHUP);
- exit(1);
- }
- if (i > 5) {
- fprintf(stderr,
- "CAUTION: some process(es) wouldn't die\n");
- break;
- }
- setalarm(2 * i);
- pause();
- }
-
- if (!qflag && (howto & RB_NOSYNC) == 0) {
- logwtmp("~", "shutdown", "");
- sync();
- setalarm(5);
- pause();
- }
- syscall(SYS_reboot, howto);
- perror("reboot");
- kill(1, SIGHUP);
- exit(1);
- }
-
- void
- dingdong()
- {
- /* RRRIIINNNGGG RRRIIINNNGGG */
- }
-
- setalarm(n)
- int n;
- {
- signal(SIGALRM, dingdong);
- alarm(n);
- }
-