From 0ab97ba0090f2609760c33000181f08757336a48 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Wed, 12 Feb 2014 14:33:17 +0100
Subject: chunked decoder: track overflows correctly

The code didn't properly check the return codes to detect overflows so
it could trigger incorrectly. Like on mingw32.

Regression introduced in 345891edba (curl 7.35.0)

Bug: http://curl.haxx.se/mail/lib-2014-02/0097.html
Reported-by: LM
---
 lib/http_chunks.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/http_chunks.c b/lib/http_chunks.c
index 47de95845..83e3f0eec 100644
--- a/lib/http_chunks.c
+++ b/lib/http_chunks.c
@@ -162,8 +162,8 @@ CHUNKcode Curl_httpchunk_read(struct connectdata *conn,
         }
 
         ch->datasize=curlx_strtoofft(ch->hexbuffer, &endptr, 16);
-        if(errno == ERANGE)
-          /* over or underflow is an error */
+        if((ch->datasize == CURL_OFF_T_MAX) && (errno == ERANGE))
+          /* overflow is an error */
           return CHUNKE_ILLEGAL_HEX;
         ch->state = CHUNK_LF; /* now wait for the CRLF */
       }
-- 
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