From: Joerg Sonnenberger <joerg@bec.de>
Date: Tue, 21 Jun 2016 12:34:02 +0000 (+0200)
Subject: Fix argument range of ctype functions.
X-Git-Tag: v3.2.2~56
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=433a84defabbd533714baa81f32007245c7ca3f0;p=thirdparty%2Flibarchive.git

Fix argument range of ctype functions.
---

diff --git a/libarchive_fe/passphrase.c b/libarchive_fe/passphrase.c
index 1eae0b888..d5ecccc5a 100644
--- a/libarchive_fe/passphrase.c
+++ b/libarchive_fe/passphrase.c
@@ -237,11 +237,11 @@ restart:
 			if (p < end) {
 				if ((flags & RPP_SEVENBIT))
 					ch &= 0x7f;
-				if (isalpha(ch)) {
+				if (isalpha((unsigned char)ch)) {
 					if ((flags & RPP_FORCELOWER))
-						ch = (char)tolower(ch);
+						ch = (char)tolower((unsigned char)ch);
 					if ((flags & RPP_FORCEUPPER))
-						ch = (char)toupper(ch);
+						ch = (char)toupper((unsigned char)ch);
 				}
 				*p++ = ch;
 			}