From 273ef1a19b9f44a1dbe4365e66d854879415ff5a Mon Sep 17 00:00:00 2001
From: ben <ben@cda61777-01e9-0310-a592-d414129be87e>
Date: Sun, 11 Jan 2009 14:17:57 +0000
Subject: [PATCH] ctype functions require their argument to be EOF or
 representable as an unsigned char.  On platforms were char is signed, passing
 plain char won't cut it.  Make sure we case chars to unsigned char before
 passing them to tolower().

git-svn-id: svn://svn.tartarus.org/sgt/charset@8404 cda61777-01e9-0310-a592-d414129be87e
---
 emacsenc.c | 2 +-
 localenc.c | 2 +-
 mimeenc.c  | 2 +-
 xenc.c     | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/emacsenc.c b/emacsenc.c
index f1046bb..ac49939 100644
--- a/emacsenc.c
+++ b/emacsenc.c
@@ -118,7 +118,7 @@ int charset_from_emacsenc(const char *name)
 	p = name;
 	q = emacsencs[i].name;
 	while (*p || *q) {
-	    if (tolower(*p) != tolower(*q))
+		if (tolower((unsigned char)*p) != tolower((unsigned char)*q))
 		break;
 	    p++; q++;
 	}
diff --git a/localenc.c b/localenc.c
index f462729..cd08cab 100644
--- a/localenc.c
+++ b/localenc.c
@@ -156,7 +156,7 @@ int charset_from_localenc(const char *name)
 	p = name;
 	q = localencs[i].name;
 	while (*p || *q) {
-	    if (tolower(*p) != tolower(*q))
+		if (tolower((unsigned char)*p) != tolower((unsigned char)*q))
 		break;
 	    p++; q++;
 	}
diff --git a/mimeenc.c b/mimeenc.c
index e0ace12..d3471d0 100644
--- a/mimeenc.c
+++ b/mimeenc.c
@@ -323,7 +323,7 @@ int charset_from_mimeenc(const char *name)
 	p = name;
 	q = mimeencs[i].name;
 	while (*p || *q) {
-	    if (tolower(*p) != tolower(*q))
+		if (tolower((unsigned char)*p) != tolower((unsigned char)*q))
 		break;
 	    p++; q++;
 	}
diff --git a/xenc.c b/xenc.c
index d27dafb..ba1c283 100644
--- a/xenc.c
+++ b/xenc.c
@@ -83,7 +83,7 @@ int charset_from_xenc(const char *name)
 	p = name;
 	q = xencs[i].name;
 	while (*p || *q) {
-	    if (tolower(*p) != tolower(*q))
+		if (tolower((unsigned char)*p) != tolower((unsigned char)*q))
 		break;
 	    p++; q++;
 	}
-- 
2.11.0