From: Christopher Faulet <cfaulet@haproxy.com>
Date: Fri, 29 Nov 2019 10:18:45 +0000 (+0100)
Subject: BUG/MINOR: http-htx: Don't make http_find_header() fail if the value is empty
X-Git-Tag: v2.2-dev1~229
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f3ad62996fa3bab907429ce25a2ada10186b4242;p=thirdparty%2Fhaproxy.git

BUG/MINOR: http-htx: Don't make http_find_header() fail if the value is empty

http_find_header() is used to find the next occurrence of a header matching on
its name. When found, the matching header is returned with the corresponding
value. This value may be empty. Unfortunatly, because of a bug, an empty value
make the function fail.

This patch must be backported to 2.1, 2.0 and 1.9.
---

diff --git a/src/http_htx.c b/src/http_htx.c
index 7489f62884..71a952d136 100644
--- a/src/http_htx.c
+++ b/src/http_htx.c
@@ -112,8 +112,6 @@ int http_find_header(const struct htx *htx, const struct ist name,
 			v.len--;
 			ctx->lws_after++;
 		}
-		if (!v.len)
-			continue;
 		ctx->blk   = blk;
 		ctx->value = v;
 		return 1;