386BSD 0.1 development

Work on file usr/src/sbin/reboot/reboot.c

Co-Authored-By: Lynne Greer Jolitz <ljolitz@cardio.ucsf.edu>
Synthesized-from: 386BSD-0.1

diff --git a/usr/src/sbin/reboot/reboot.c b/usr/src/sbin/reboot/reboot.c
new file mode 100644 (file)
index 0000000..e1665d8
--- /dev/null
+++ b/usr/src/sbin/reboot/reboot.c
@@ -0,0 +1,146 @@
+/*
+ * 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);
+}