New libcurl option to keep sending on error

Add the new option CURLOPT_KEEP_SENDING_ON_ERROR to control whether
sending the request body shall be completed when the server responds
early with an error status code.

This is suitable for manual NTLM authentication.

Reviewed-by: Jay Satiro

Closes https://github.com/curl/curl/pull/904

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/url.c b/lib/url.c
index f355c7a22..74e9bf5c6 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -782,6 +782,10 @@ CURLcode Curl_setopt(struct Curl_easy *data, CURLoption option,
      */
     data->set.http_fail_on_error = (0 != va_arg(param, long)) ? TRUE : FALSE;
     break;
+  case CURLOPT_KEEP_SENDING_ON_ERROR:
+    data->set.http_keep_sending_on_error = (0 != va_arg(param, long)) ?
+                                           TRUE : FALSE;
+    break;
   case CURLOPT_UPLOAD:
   case CURLOPT_PUT:
     /*