Update sybase_ct module to newer API's

Just in case no one noticed my comments in php-cvs: Could someone in the core team please look over my patches and make sure I'm doing this right? I have a few more patches to this module waiting, and plenty more to come, but I want to be absolutely SURE I'm doing this correctly. Also, I created the following patch to ext/sybase_ct/php_sybase_ct.c to prevent from getting Seg faults in sybase_query when there is no active link, but I'm not sure if this is the BEST way to do it. It seems the MySQL module is doing it differently, but I cannot see how...any feedback is more than welcome. In the meantime, I will see if I can't see how MySQL is doing its magic. :) @@ -962,6 +962,12 @@ WRONG_PARAM_COUNT; break; } + + if ( (!sybase_link_index) || (id == -1)) + { + php_error(E_WARNING, "Warning - Supplied argument is not a valid Sybase-Link resource"); + RETURN_FALSE; + } ZEND_FETCH_RESOURCE2(sybase_ptr, sybase_link *, sybase_link_index, id, "Sybase-Link", sybase_globals.le_link, sybase_globals.le_plink);