ntlm: Moved the SSPI based Type-2 message decoding into the SASL module

lib/curl_sasl_sspi.c

@@ -39,6 +39,7 @@
 #include "curl_memory.h"
 #include "curl_multibyte.h"
 #include "curl_ntlm_msgs.h"
+#include "sendf.h"
 #include "strdup.h"
 
 #define _MPRINTF_REPLACE /* use our functions only */
@@ -616,7 +617,29 @@ CURLcode Curl_sasl_decode_ntlm_type2_message(struct SessionHandle *data,
                                              const char *type2msg,
                                              struct ntlmdata *ntlm)
 {
-  return Curl_ntlm_decode_type2_message(data, type2msg, ntlm);
+  CURLcode result = CURLE_OK;
+  unsigned char *type2 = NULL;
+  size_t type2_len = 0;
+
+  /* Decode the base-64 encoded type-2 message */
+  if(strlen(type2msg) && *type2msg != '=') {
+    result = Curl_base64_decode(type2msg, &type2, &type2_len);
+    if(result)
+      return result;
+  }
+
+  /* Ensure we have a valid type-2 message */
+  if(!type2) {
+    infof(data, "NTLM handshake failure (empty type-2 message)\n");
+
+    return CURLE_BAD_CONTENT_ENCODING;
+  }
+
+  /* Simply store the challenge for use later */
+  ntlm->input_token = type2;
+  ntlm->input_token_len = type2_len;
+
+  return result;
 }
 
 /*