HTTP: add support for gzip and deflate Transfer-Encoding

Transfer-Encoding differs from Content-Encoding in a few subtle ways,
but primarily it concerns the transfer only and not the content so when
discovered to be compressed we know we have to uncompress it. There will
only arrive compressed transfers in a response after we have requested
them with the appropriate TE: header.

Test case 1122 and 1123 verify.

1 files changed, 12 insertions, 11 deletions

diff --git a/lib/urldata.h b/lib/urldata.h
index d1718a9a4..f2fb279d4 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -837,18 +837,19 @@ struct connectdata {
                                 well be the same we read from.
                                 CURL_SOCKET_BAD disables */
 
-  /** Dynamicly allocated strings, may need to be freed before this **/
-  /** struct is killed.                                             **/
+  /** Dynamicly allocated strings, MUST be freed before this **/
+  /** struct is killed.                                      **/
   struct dynamically_allocated_data {
-    char *proxyuserpwd; /* free later if not NULL! */
-    char *uagent; /* free later if not NULL! */
-    char *accept_encoding; /* free later if not NULL! */
-    char *userpwd; /* free later if not NULL! */
-    char *rangeline; /* free later if not NULL! */
-    char *ref; /* free later if not NULL! */
-    char *host; /* free later if not NULL */
-    char *cookiehost; /* free later if not NULL */
-    char *rtsp_transport; /* free later if not NULL */
+    char *proxyuserpwd;
+    char *uagent;
+    char *accept_encoding;
+    char *userpwd;
+    char *rangeline;
+    char *ref;
+    char *host;
+    char *cookiehost;
+    char *rtsp_transport;
+    char *te; /* TE: request header */
   } allocptr;
 
   int sec_complete; /* if kerberos is enabled for this connection */