Module Name:    src
Committed By:   mrg
Date:           Fri Dec 26 19:52:00 UTC 2014

Modified Files:
        src/libexec/httpd: auth-bozo.c

Log Message:
more for the previous:  make sure [i - 1] can never go negative.


To generate a diff of this commit:
cvs rdiff -u -r1.15 -r1.16 src/libexec/httpd/auth-bozo.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/libexec/httpd/auth-bozo.c
diff -u src/libexec/httpd/auth-bozo.c:1.15 src/libexec/httpd/auth-bozo.c:1.16
--- src/libexec/httpd/auth-bozo.c:1.15	Fri Dec 26 19:48:52 2014
+++ src/libexec/httpd/auth-bozo.c	Fri Dec 26 19:52:00 2014
@@ -1,4 +1,4 @@
-/*	$NetBSD: auth-bozo.c,v 1.15 2014/12/26 19:48:52 mrg Exp $	*/
+/*	$NetBSD: auth-bozo.c,v 1.16 2014/12/26 19:52:00 mrg Exp $	*/
 
 /*	$eterna: auth-bozo.c,v 1.17 2011/11/18 09:21:15 mrg Exp $	*/
 
@@ -265,7 +265,7 @@ base64_decode(const unsigned char *in, s
 			| decodetable[in[i + 3]];
 #undef IN_CHECK
 	}
-	while (in[i - 1] == '=')
+	while (i > 0 && in[i - 1] == '=')
 		cp--,i--;
 	return (cp - out);
 }

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