IBASE_MSGSIZE     512 ext/interbase/interbase.c 	while ((s - IBG(errmsg)) < MAX_ERRMSG - (IBASE_MSGSIZE + 2) && isc_interprete(s, &statusp)) {
IBASE_MSGSIZE      54 ext/interbase/php_ibase_includes.h #define MAX_ERRMSG (IBASE_MSGSIZE*2)