From 0b0b4009e2fdcf023e54b65949e58e178195cacc Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Mon, 10 Feb 2014 00:51:10 +0100
Subject: [PATCH] Relaxed parsing of encoded MIME headers

---
 charset.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/charset.c b/charset.c
index 0f76670..c80ce9e 100644
--- a/charset.c
+++ b/charset.c
@@ -232,7 +232,8 @@ static const char *find_encoded_word (const char *s, const char **x)
       ;
     if (q[0] != '?' || !strchr ("BbQq", q[1]) || q[2] != '?')
       continue;
-    for (q = q + 3; 0x20 < *q && *q < 0x7f && *q != '?'; q++)
+    /* non-strict check since many MUAs will not encode spaces and question marks */
+    for (q = q + 3; 0x20 <= *q && *q < 0x7f && (*q != '?' || q[1] != '='); q++)
       ;
     if (q[0] != '?' || q[1] != '=')
     {
-- 
2.39.5