Colin Hogben filed bug report #1750274

(http://curl.haxx.se/bug/view.cgi?id=1750274) and submitted a patch for the
case where libcurl did a connect attempt to a non-listening port and didn't
provide a human readable error string back.

CHANGES

@@ -7,10 +7,17 @@
                                   Changelog
 
 Daniel S (13 July 2007)
+- Colin Hogben filed bug report #1750274
+  (http://curl.haxx.se/bug/view.cgi?id=1750274) and submitted a patch for the
+  case where libcurl did a connect attempt to a non-listening port and didn't
+  provide a human readable error string back.
+
 - Daniel Cater fixes:
   1 - made 'make vc8' work on windows.
   2 - made libcurl itself built with CURL_NO_OLDIES defined (which doesn't
       define the symbols for backwards source compatibility)
+  3 - updated libcurl-errors.3
+  4 - added CURL_DISABLE_TFTP to docs/INSTALL
 
 Daniel S (12 July 2007)
 - Made the krb5 code build with Heimdal's GSSAPI lib.

RELEASE-NOTES

@@ -21,6 +21,7 @@ This release includes the following bugfixes:
  o CURLOPT_SSL_VERIFYHOST set to 1
  o CONNECT endless loop
  o krb5 support builds with Heimdal
+ o added returned error string for connection refused case
 
 This release includes the following known bugs:
 
@@ -38,6 +39,6 @@ This release would not have looked like this without help, code, reports and
 advice from friends like these:
 
  Dan Fandrich, Song Ma, Daniel Black, Giancarlo Formicuccia, Shmulik Regev,
- Daniel Cater
+ Daniel Cater, Colin Hogben
  
         Thanks! (and sorry if I forgot to mention someone)

lib/connect.c

@@ -577,6 +577,8 @@ CURLcode Curl_is_connected(struct connectdata *conn,
     data->state.os_errno = error;
     infof(data, "Connection failed\n");
     if(trynextip(conn, sockindex, connected)) {
+      failf(data, "Failed connect to %s:%d; %s",
+            conn->host.name, conn->port, Curl_strerror(conn, error));
       code = CURLE_COULDNT_CONNECT;
     }
   }