webread: Apply timeout also for initial connection (bug #64826).

* liboctave/util/url-transfer.cc (curl_transfer::set_weboptions): Set timeout
in Milliseconds for transfer and connection with CURLOPT_TIMEOUT_MS and
CURLOPT_CONNECTTIMEOUT_MS.
* scripts/web/webread.m: Fix function name in error message. Use transpose
operator instead of complex conjugate transpose operator.

liboctave/util/url-transfer.cc

@@ -753,7 +753,8 @@ class curl_transfer : public base_url_transfer
 
     set_header_fields (options.HeaderFields);
 
-    SETOPT (CURLOPT_TIMEOUT, options.Timeout);
+    SETOPT (CURLOPT_TIMEOUT_MS, options.Timeout);
+    SETOPT (CURLOPT_CONNECTTIMEOUT_MS, options.Timeout);
 
     if (! options.UserAgent.empty ())
       SETOPT (CURLOPT_USERAGENT, options.UserAgent.c_str ());

scripts/web/webread.m

@@ -86,14 +86,14 @@
 
   ## Flatten the cell array because the internal processing takes place on
   ## a flattened array.
-  options.HeaderFields = options.HeaderFields(:)';
+  options.HeaderFields = options.HeaderFields(:).';
 
   nargs = 1 + numel (varargin);
   if (nargs == 1)
     response = __restful_service__ (url, cell (), options);
   elseif (rem (nargs, 2) == 1)
     if (! iscellstr (varargin))
-      error ("webwrite: KEYS and VALUES must be strings");
+      error ("webread: KEYS and VALUES must be strings");
     else
       response = __restful_service__ (url, varargin, options);
     endif