Adrian Schuur added trailer support in the chunked encoding stream. The

trailer is then sent to the normal header callback/stream.

lib/http_chunks.h

@@ -52,8 +52,8 @@ typedef enum {
   /* POSTCR should get a CR and nothing else, then move to POSTLF */
   CHUNK_POSTCR,
 
-  /* POSTLF should get a LF and nothing else, then move back to HEX as
-     the CRLF combination marks the end of a chunk */
+  /* POSTLF should get a LF and nothing else, then move back to HEX as the
+     CRLF combination marks the end of a chunk */
   CHUNK_POSTLF,
 
   /* This is mainly used to really mark that we're out of the game.
@@ -62,7 +62,22 @@ typedef enum {
      buffer! */
   CHUNK_STOP,
 
+  /* At this point optional trailer headers can be found, unless the next line
+     is CRLF */
+  CHUNK_TRAILER,
+
+  /* A trailer CR has been found - next state is CHUNK_TRAILER_POSTCR.
+     Next char must be a LF */
+  CHUNK_TRAILER_CR,
+
+  /* A trailer LF must be found now, otherwise CHUNKE_BAD_CHUNK will be
+     signalled If this is an empty trailer CHUNKE_STOP will be signalled.
+     Otherwise the trailer will be broadcasted via Curl_client_write() and the
+     next state will be CHUNK_TRAILER */
+  CHUNK_TRAILER_POSTCR,
+
   CHUNK_LAST /* never use */
+
 } ChunkyState;
 
 typedef enum {
@@ -74,6 +89,7 @@ typedef enum {
   CHUNKE_WRITE_ERROR,
   CHUNKE_STATE_ERROR,
   CHUNKE_BAD_ENCODING,
+  CHUNKE_OUT_OF_MEMORY,
   CHUNKE_LAST
 } CHUNKcode;