Initial Digest support. At least partly working.

lib/http_digest.h

@@ -0,0 +1,43 @@
+/***************************************************************************
+ *                                  _   _ ____  _     
+ *  Project                     ___| | | |  _ \| |    
+ *                             / __| | | | |_) | |    
+ *                            | (__| |_| |  _ <| |___ 
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2003, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ * 
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ * $Id$
+ ***************************************************************************/
+
+typedef enum {
+  CURLDIGEST_NONE, /* not a digest */
+  CURLDIGEST_BAD,  /* a digest, but one we don't like */
+  CURLDIGEST_FINE, /* a digest we act on */
+
+  CURLDIGEST_LAST  /* last entry in this enum, don't use */
+} CURLdigest;
+
+enum {
+  CURLDIGESTALGO_MD5,
+  CURLDIGESTALGO_MD5SESS
+};
+
+/* this is for digest header input */
+CURLdigest Curl_input_digest(struct connectdata *conn, char *header);
+
+/* this is for creating digest header output */
+CURLcode Curl_output_digest(struct connectdata *conn,
+                            unsigned char *request,
+                            unsigned char *uripath);