fis-gtm/sr_port/err_check.c

61 lines
2.0 KiB
C

/****************************************************************
* *
* Copyright 2001, 2012 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#include "mdef.h"
#include "error.h"
VMS_ONLY(LITREF)UNIX_ONLY(GBLREF) err_ctl merrors_ctl;
VMS_ONLY(LITREF)UNIX_ONLY(GBLREF) err_ctl cmerrors_ctl;
VMS_ONLY(LITREF)UNIX_ONLY(GBLREF) err_ctl cmierrors_ctl;
VMS_ONLY(LITREF)UNIX_ONLY(GBLREF) err_ctl gdeerrors_ctl;
#ifdef VMS
LITREF err_ctl laerrors_ctl; /* Roger thinks that this one is obsolete */
LITREF err_ctl lperrors_ctl; /* Roger thinks that this one may be obsolete */
#endif
STATICDEF const err_ctl *all_errors[] = { &merrors_ctl, &gdeerrors_ctl,
&cmierrors_ctl, &cmerrors_ctl,
#ifdef VMS
&laerrors_ctl, &lperrors_ctl,
#endif
NULL };
/* Returns the error control struct corresponding to the errornum if it is valid, otherwise
* returns NULL
*/
const err_ctl *err_check(int errnum) {
/* errnum structure:
* ___________________________________________
* | 1 FACILITY 1 MSG_IDX SEV|
* |___________________________________________|
* 31 27 15 3 0
*
*/
const err_ctl *fac;
int errtype;
int msg_id; /* Error message number once facility and severity are stripped */
if (0 > errnum)
return NULL ;
for (errtype = 0; all_errors[errtype]; errtype++) {
fac = all_errors[errtype];
msg_id = MSGMASK(errnum, fac->facnum);
/* These conditions ensure: The facility bits are identical, the message index
* doesn't exceed the array size and is larger than zero */
if (((errnum >> MSGFAC) == (FACMASK(fac->facnum) >> MSGFAC))
&& (msg_id <= fac->msg_cnt) && (1 <= msg_id))
return fac;
}
return NULL ;
}