Fix potential UAF when shutting down isc_httpd
Add and use the ISC_LIST_FOREACH_SAFE() macro to safely walk the running https and shut them down in a manner safe from deletion.
Closes #4030 (closed)
Edited by Ondřej Surý
Add and use the ISC_LIST_FOREACH_SAFE() macro to safely walk the running https and shut them down in a manner safe from deletion.
Closes #4030 (closed)