http_ntlm_wb: Move the type-2 message processing into a dedicated function

This brings the code inline with the other HTTP authentication mechanisms.

Closes #3890

1 files changed, 26 insertions, 0 deletions

diff --git a/lib/curl_ntlm_wb.c b/lib/curl_ntlm_wb.c
index 865f1396b..2400ff091 100644
--- a/lib/curl_ntlm_wb.c
+++ b/lib/curl_ntlm_wb.c
@@ -53,6 +53,8 @@
 #include "url.h"
 #include "strerror.h"
 #include "strdup.h"
+#include "strcase.h"
+
 /* The last 3 #include files should be in this order */
 #include "curl_printf.h"
 #include "curl_memory.h"
@@ -333,6 +335,30 @@ done:
   return CURLE_REMOTE_ACCESS_DENIED;
 }
 
+CURLcode Curl_input_ntlm_wb(struct connectdata *conn,
+                            bool proxy,
+                            const char *header)
+{
+  (void) proxy;
+
+  if(!checkprefix("NTLM", header))
+    return CURLE_BAD_CONTENT_ENCODING;
+
+  header += strlen("NTLM");
+  while(*header && ISSPACE(*header))
+    header++;
+
+  if(*header) {
+    conn->challenge_header = strdup(header);
+    if(!conn->challenge_header)
+      return CURLE_OUT_OF_MEMORY;
+  }
+  else
+    return CURLE_BAD_CONTENT_ENCODING;
+
+  return CURLE_OK;
+}
+
 /*
  * This is for creating ntlm header output by delegating challenge/response
  * to Samba's winbind daemon helper ntlm_auth.