Tcl Source Code

Test http-4.14 fails for tcl-8.6.11rc0, and also for tcl-8.6.10.

The problem is the test's use of [info hostname] as the host name.  The system interprets this correctly when connecting to a port that has a listening socket.  When attempting to connect to a non-existent listener, the system reports [info hostname] as an "invalid argument" (perhaps because it has attempted and failed DNS lookup?).

Using [socket] without the -async option, the problem can be seen at the command line:

% socket 127.0.0.1 45678
couldn't open socket: connection refused

% socket localhost 45678
couldn't open socket: connection refused

% socket [info hostname] 45678
couldn't open socket: invalid argument

% socket [info hostname] 22 ;# works with a valid listening port
sock2781730

% info hostname
argent.home

File tests/http.test notes earlier problems with name resolution on OSX.  Name resolution is not the focus of the http package or its tests; so I suggest adopting the same solution as for OSX and setting the host name to "localhost" rather than [info hostname].

Because the httpd simple server clobbers the value of HOST the change is mode in three files:
* tests/http.test
* tests/httpold.test
* tests/httpd

Fixed now in core-8-6-branch and up.

Thanks for the analysis and fix!