From f344f57b431a3f713873cd19bf346f494ac561db Mon Sep 17 00:00:00 2001
From: florian <florian@openbsd.org>
Date: Wed, 12 Jul 2023 15:45:34 +0000
Subject: [PATCH] Don't run off the end of path if it ends in /. OK op, sthen

---
 usr.bin/patch/pch.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/usr.bin/patch/pch.c b/usr.bin/patch/pch.c
index a3e0a9cf5f8..7c65062a719 100644
--- a/usr.bin/patch/pch.c
+++ b/usr.bin/patch/pch.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pch.c,v 1.65 2023/07/12 15:44:47 florian Exp $	*/
+/*	$OpenBSD: pch.c,v 1.66 2023/07/12 15:45:34 florian Exp $	*/
 
 /*
  * patch - a program to apply diffs to original files
@@ -1484,7 +1484,8 @@ num_components(const char *path)
 	size_t n;
 	const char *cp;
 
-	for (n = 0, cp = path; (cp = strchr(cp, '/')) != NULL; n++, cp++) {
+	for (n = 0, cp = path; (cp = strchr(cp, '/')) != NULL; n++) {
+		cp++;
 		while (*cp == '/')
 			cp++;		/* skip consecutive slashes */
 	}
-- 
2.20.1