[release/6.x] Stop passing nullptr to curl_multi_socket_action (#7371) (#7390)

Author: cjen1-msft

CHANGELOG.md

@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [6.0.16]
+
+[6.0.16]: https://github.com/microsoft/CCF/releases/tag/6.0.16
+
+### Fixed
+
+- Stop passing nullptr to curl_multi_socket_action (#7371)
+
 ## [6.0.15]
 
 [6.0.15]: https://github.com/microsoft/CCF/releases/tag/6.0.15

python/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "ccf"
-version = "6.0.15"
+version = "6.0.16"
 authors = [
   { name="CCF Team", email="[email protected]" },
 ]

src/http/curl.h

@@ -784,12 +784,13 @@ namespace ccf::curl
         }
 
         // Notify curl of the error
+        int running_handles = 0;
         CHECK_CURL_MULTI(
           curl_multi_socket_action,
           self->curl_request_curlm,
           socket_context->socket,
           CURL_CSELECT_ERR,
-          nullptr);
+          &running_handles);
         self->curl_request_curlm.perform();
         return;
       }