From: Adam Dickmeiss <adam@indexdata.dk>
Date: Wed, 1 May 2013 12:05:32 +0000 (+0200)
Subject: yaz_url_exec: only one User-Agent
X-Git-Tag: v4.2.57~10
X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=commitdiff_plain;h=a17e9df75e5d75ccdc3f19101fb7b5d0c5a75e46

yaz_url_exec: only one User-Agent

User-Agent in headers removes the default User-Agent: YAZ .
---

diff --git a/src/url.c b/src/url.c
index 3c2b361..1c55261 100644
--- a/src/url.c
+++ b/src/url.c
@@ -112,6 +112,11 @@ Z_HTTP_Response *yaz_url_exec(yaz_url_t p, const char *uri,
         gdu = z_get_HTTP_Request_uri(p->odr_out, uri_lean, 0, p->proxy ? 1 : 0);
         gdu->u.HTTP_Request->method = odr_strdup(p->odr_out, method);
 
+        /* clear all headers - including "User-Agent", if already in headers
+           z_get_HTTP_Request_uri sets "User-Agent" header */
+        if (z_HTTP_header_lookup(headers, "User-Agent"))
+            gdu->u.HTTP_Request->headers = 0;
+
         if (http_user && http_pass)
             z_HTTP_header_add_basic_auth(p->odr_out,
                                          &gdu->u.HTTP_Request->headers,