parse_http_url(): Fail if no host is found when we expected one

This can happen in case of invalid requests in which case
Privoxy priviously would leak a couple of bytes of memory.

diff --git a/urlmatch.c b/urlmatch.c
index b6a61d9..b213c3e 100644 (file)
--- a/urlmatch.c
+++ b/urlmatch.c
@@ -326,6 +326,11 @@ jb_err parse_http_url(const char *url, struct http_request *http, int require_pr
 
    if (!host_available)
    {
+      if (!require_protocol)
+      {
+         log_error(LOG_LEVEL_ERROR, "No host found in request line.");
+         return JB_ERR_PARSE;
+      }
       /* Without host, there is nothing left to do here */
       return JB_ERR_OK;
    }