20 extern int global_errorlevel;
    22 int err_handler(
DBPROCESS * dbproc, 
int severity, 
int dberr, 
int oserr, 
char *dberrstr, 
char *oserrstr);
    24 int msg_handler(
DBPROCESS * dbproc, DBINT msgno, 
int msgstate,
    25         int severity, 
char *msgtext, 
char *srvname, 
char *procname, 
int line);