Add quiet option, document exit status

2 files changed, 16 insertions, 7 deletions

diff --git a/btimec.1 b/btimec.1
index 1e67389..f661498 100644
--- a/btimec.1
+++ b/btimec.1
@@ -2,7 +2,7 @@
 .SH NAME
 btimec \- Get the boot time of a host from btimed(8).
 .SH SYNOPSIS
-\fBbtimec\fR [-\fBr\fR] \fIhost\fR [\fIhost\fR ...]
+\fBbtimec\fR [-\fBqr\fR] \fIhost\fR [\fIhost\fR ...]
 .SH DESCRIPTION
 .B Btimec 
 connects to btimed(8) on the specified \fIhost\fR to determine the time the
@@ -11,7 +11,13 @@ output.  If multiple hosts are listed, the value for each host is printed on a
 separate line.
 .SH OPTIONS
 .TP
+.B \-q
+Don't print the boot time.
+.TP
 .B \-r
 Print the boot time in a human readable form.
+
+.SH EXIT STATUS
+Success if the host returns a boot time, failure otherwise.
 .SH "SEE ALSO"
 btimed(8), qarsh(1)
diff --git a/btimec.c b/btimec.c
index f1d4518..2f791ff 100644
--- a/btimec.c
+++ b/btimec.c
@@ -29,21 +29,24 @@
 
 #include "btime.h"
 
-char usage[] = "USAGE: %s [-r] <host>\n";
+char usage[] = "USAGE: %s [-qr] <host>\n";
 
 int
 main(int argc, char **argv)
 {
 	unsigned int bt;
 	char *btimedhost;
-	int readable = 0;
+	int readable = 1;
 	int c;
 	int ret = 0;
 
-	while ((c = getopt(argc, argv, "r")) != -1) {
+	while ((c = getopt(argc, argv, "qr")) != -1) {
 		switch (c) {
+			case 'q':
+				readable = 0;
+				break;
 			case 'r': 
-				readable = 1; 
+				readable = 2; 
 				break;
 			default: 
 				fprintf(stderr, usage, argv[0]);
@@ -59,11 +62,11 @@ main(int argc, char **argv)
 	for ( ; optind < argc; optind++) {
 		btimedhost = argv[optind];
 		bt = btime(btimedhost);
-		if (readable) {
+		if (readable == 2) {
 			time_t tt = bt;
 			time_t *ttp = &tt;
 			printf("%s: %s", btimedhost, bt ? ctime(ttp) : "down\n");
-		} else {
+		} else if (readable == 1) {
 			printf("%s: %u\n", btimedhost, bt);
 		}
 		if (bt == 0) ret = 1;