From: Daniel Stenberg <daniel@haxx.se>
Date: Mon, 20 Oct 2003 08:45:33 +0000 (+0000)
Subject: lock the DNS cache properly before adding an entry when using asynch DNS
X-Git-Tag: curl-7_10_8~81
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=31b6bb6a41ce1a59d26b27be955a9073c393a796;p=thirdparty%2Fcurl.git

lock the DNS cache properly before adding an entry when using asynch DNS
---

diff --git a/lib/hostip.c b/lib/hostip.c
index 93a732d90f..c06961e790 100644
--- a/lib/hostip.c
+++ b/lib/hostip.c
@@ -527,8 +527,16 @@ static void host_callback(void *arg, /* "struct connectdata *" */
       /* pack_hostent() copies to and shrinks the target buffer */
       struct hostent *he = pack_hostent(&bufp, hostent);
 
-      dns = cache_resolv_response(conn->data, he,
+      struct SessionHandle *data = conn->data;
+
+      if(data->share)
+        Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
+
+      dns = cache_resolv_response(data, he,
                                   conn->async.hostname, conn->async.port);
+
+      if(data->share)
+        Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
     }
   }