From: yasuoka <yasuoka@openbsd.org>
Date: Tue, 30 Aug 2022 15:57:19 +0000 (+0000)
Subject: Give a string which length is multiple of 4 to b64_pton() since the
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=9952f79b7732792b0aace5870871cf7d3be9ece7;p=openbsd

Give a string which length is multiple of 4 to b64_pton() since the
function assumes that the input ends at end of 24-bit group.

ok tb claudio
---

diff --git a/usr.bin/uudecode/uudecode.c b/usr.bin/uudecode/uudecode.c
index ad89732b0bd..186ab614ba8 100644
--- a/usr.bin/uudecode/uudecode.c
+++ b/usr.bin/uudecode/uudecode.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: uudecode.c,v 1.27 2019/06/28 13:35:05 deraadt Exp $	*/
+/*	$OpenBSD: uudecode.c,v 1.28 2022/08/30 15:57:19 yasuoka Exp $	*/
 /*	$FreeBSD: uudecode.c,v 1.49 2003/05/03 19:44:46 obrien Exp $	*/
 
 /*-
@@ -423,11 +423,13 @@ uu_decode(void)
 	}
 }
 
+#define	ROUNDDOWN(x,y)	(((x)/(y)) * (y))
+
 static int
 base64_decode(void)
 {
 	int n;
-	char inbuf[PATH_MAX];
+	char inbuf[ROUNDDOWN(PATH_MAX, 4) + 1];
 	unsigned char outbuf[PATH_MAX * 4];
 
 	for (;;) {