Addition to reboot(8): reboot / halt reasons

[Christopher Nehren]

While playing around with Win2K3 recently, I noticed that it brings up a
dialog at every reboot / shutdown and asks for a reason for said reboot
/ shutdown. So I was bored tonight, and decided to implement that
feature in FreeBSD's reboot(8) with a -r flag. Here's a diff against a
-CURRENT reboot.c, checked out about five minutes ago.
-------------- next part --------------
--- reboot.c.old	Sat May  3 14:41:59 2003
+++ reboot.c	Mon Sep  1 22:23:56 2003
@@ -69,9 +69,10 @@
 main(int argc, char *argv[])
 {
 	struct passwd *pw;
-	int ch, howto, i, fd, kflag, lflag, nflag, qflag, pflag, sverrno;
+	int ch, howto, i, fd, kflag, lflag, nflag, qflag, pflag, rflag;
+	int sverrno;
 	u_int pageins;
-	char *kernel, *p;
+	char *kernel, *p, *reason;
 	const char *user;
 
 	if (strstr((p = rindex(*argv, '/')) ? p + 1 : *argv, "halt")) {
@@ -79,8 +80,8 @@
 		howto = RB_HALT;
 	} else
 		howto = 0;
-	kflag = lflag = nflag = qflag = 0;
-	while ((ch = getopt(argc, argv, "dk:lnpq")) != -1)
+	kflag = lflag = nflag = qflag = rflag = 0;
+	while ((ch = getopt(argc, argv, "dk:lnpqr:")) != -1)
 		switch(ch) {
 		case 'd':
 			howto |= RB_DUMP;
@@ -103,6 +104,10 @@
 		case 'q':
 			qflag = 1;
 			break;
+		case 'r':
+			rflag = 1;
+			reason = optarg;
+			break;
 		case '?':
 		default:
 			usage();
@@ -140,10 +145,10 @@
 			    pw->pw_name : "???";
 		if (dohalt) {
 			openlog("halt", 0, LOG_AUTH | LOG_CONS);
-			syslog(LOG_CRIT, "halted by %s", user);
+			syslog(LOG_CRIT, "halted by %s: %s", user, rflag ? reason : "no reason");
 		} else {
 			openlog("reboot", 0, LOG_AUTH | LOG_CONS);
-			syslog(LOG_CRIT, "rebooted by %s", user);
+			syslog(LOG_CRIT, "rebooted by %s: %s", user, rflag ? reason : "no reason");
 		}
 	}
 	logwtmp("~", "shutdown", "");