Description:
------------
We tried to compile this excellent pecl extension on Windows 
and we found a portability issue in the network code. 

The extension uses plain "close(socket)" function instead of 
"closesocket(socket)". There is no problem using closesocket 
on Unix, since PHP provides a define for this, which is used 
throughout PHP itself as well. 

I have attached a small patch for your consideration.

Reproduce code:
---------------
* rename close -> closesocket so it will work on Windows
diff -up ssh2-0.11.0/ssh2.c.orig ssh2-0.11.0/ssh2.c
--- ssh2-0.11.0/ssh2.c.orig     2008-12-02 21:50:10.000000000 +0100
+++ ssh2-0.11.0/ssh2.c  2009-08-31 10:23:27.000000000 +0200
@@ -358,7 +358,7 @@ LIBSSH2_SESSION *php_ssh2_session_connec
        if (!session) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to initialize SSH2 session");
                efree(data);
-               close(socket);
+               closesocket(socket);
                return NULL;
        }
        libssh2_banner_set(session, LIBSSH2_SSH_DEFAULT_BANNER " PHP");
@@ -434,7 +434,7 @@ LIBSSH2_SESSION *php_ssh2_session_connec

                last_error = libssh2_session_last_error(session, &error_msg, NULL, 0);
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error starting up SSH connection(%d): %s", last_error, error_msg);
-               close(socket);
+               closesocket(socket);
                libssh2_session_free(session);
                efree(data);
                return NULL;
@@ -1148,7 +1148,7 @@ static void php_ssh2_session_dtor(zend_r
                        zval_ptr_dtor(&(*data)->disconnect_cb);
                }

-               close((*data)->socket);
+               closesocket((*data)->socket);

                efree(*data);
                *data = NULL;