From a81544a8102c588de8b40ba823294fe3f982d96f Mon Sep 17 00:00:00 2001
From: sin <sin@2f30.org>
Date: Tue, 11 Nov 2014 16:08:13 +0000
Subject: [PATCH] kill -l accepts at most 1 arg

---
 kill.1 |  2 +-
 kill.c | 27 ++++++++++++---------------
 2 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/kill.1 b/kill.1
index 0a41827..d248d9f 100644
--- a/kill.1
+++ b/kill.1
@@ -4,7 +4,7 @@ KILL \- signal processes
 .SH SYNOPSIS
 \fBkill\fR [ \fB-s\fR \fIsignal_name\fR ] \fIpid\fR \fI...\fR
 .P
-\fBkill\fR \fB-l\fR [ \fIexit_status\fR \fI...\fR]
+\fBkill\fR \fB-l\fR [ \fIexit_status\fR]
 .P
 \fBkill\fR \fB-\fR\fIsignal_name\fR \fIpid\fR \fI...\fR
 .P
diff --git a/kill.c b/kill.c
index ccc6a10..2ab0af8 100644
--- a/kill.c
+++ b/kill.c
@@ -28,7 +28,7 @@ static void
 usage(void)
 {
 	weprintf("usage: %s [-s signame | -signum | -signame] pid ...\n", argv0);
-	weprintf("       %s -l [exit_status ...]\n", argv0);
+	weprintf("       %s -l [exit_status]\n", argv0);
 	exit(1);
 }
 
@@ -72,19 +72,16 @@ main(int argc, char *argv[])
 				puts(sigs[i].name);
 			exit(0);
 		}
-		for (; argc; argc--, argv++) {
-			errno = 0;
-			sig = strtol(argv[0], &end, 0);
-			if (*end == '\0' && errno == 0) {
-				name = sig2name(sig);
-				if (!name)
-					printf("%d\n", sig);
-				else
-					puts(name);
-			} else {
-				weprintf("%s: bad signal number\n", argv[0]);
-				ret = 1;
-			}
+		errno = 0;
+		sig = strtol(argv[0], &end, 0);
+		if (*end == '\0' && errno == 0) {
+			name = sig2name(sig);
+			if (!name)
+				eprintf("%d: bad signal number\n", sig);
+			else
+				puts(name);
+		} else {
+			eprintf("%s: bad signal name\n", argv[0]);
 		}
 		exit(0);
 	} else {
@@ -108,7 +105,7 @@ main(int argc, char *argv[])
 				}
 			}
 			if (i == LEN(sigs))
-				eprintf("%s: bad signal number\n", name);
+				eprintf("%s: bad signal name\n", name);
 		}
 		argc--;
 		argv++;