xref: /onnv-gate/usr/src/lib/libc/port/gen/addsev.c (revision 2552:04b007b7b43f)
10Sstevel@tonic-gate /*
20Sstevel@tonic-gate  * CDDL HEADER START
30Sstevel@tonic-gate  *
40Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*2552Scraigm  * Common Development and Distribution License (the "License").
6*2552Scraigm  * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate  *
80Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate  * See the License for the specific language governing permissions
110Sstevel@tonic-gate  * and limitations under the License.
120Sstevel@tonic-gate  *
130Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate  *
190Sstevel@tonic-gate  * CDDL HEADER END
200Sstevel@tonic-gate  */
210Sstevel@tonic-gate /*
22*2552Scraigm  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
230Sstevel@tonic-gate  * Use is subject to license terms.
240Sstevel@tonic-gate  */
250Sstevel@tonic-gate 
260Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
270Sstevel@tonic-gate 
280Sstevel@tonic-gate /*	Copyright (c) 1988 AT&T	*/
290Sstevel@tonic-gate /*	  All Rights Reserved  	*/
300Sstevel@tonic-gate 
31*2552Scraigm #pragma	weak addsev = _addsev
320Sstevel@tonic-gate 
330Sstevel@tonic-gate #include "synonyms.h"
340Sstevel@tonic-gate #include "mtlib.h"
350Sstevel@tonic-gate #include "libc.h"
360Sstevel@tonic-gate #include <stdlib.h>
370Sstevel@tonic-gate #include <pfmt.h>
380Sstevel@tonic-gate #include <thread.h>
390Sstevel@tonic-gate #include "pfmt_data.h"
400Sstevel@tonic-gate #include <sys/types.h>
410Sstevel@tonic-gate #include <string.h>
420Sstevel@tonic-gate #include <synch.h>
430Sstevel@tonic-gate 
440Sstevel@tonic-gate int
450Sstevel@tonic-gate addsev(int severity, const char *string)
460Sstevel@tonic-gate {
470Sstevel@tonic-gate 	int i, firstfree;
480Sstevel@tonic-gate 	void *new;
490Sstevel@tonic-gate 
500Sstevel@tonic-gate 	/* Cannot redefine standard severity */
510Sstevel@tonic-gate 	if ((severity <= 4) || (severity > 255))
520Sstevel@tonic-gate 		return (-1);
530Sstevel@tonic-gate 
540Sstevel@tonic-gate 	/* Locate severity in table */
550Sstevel@tonic-gate 	lrw_wrlock(&_rw_pfmt_sev_tab);
560Sstevel@tonic-gate 	for (i = 0, firstfree = -1; i < __pfmt_nsev; i++) {
570Sstevel@tonic-gate 		if (__pfmt_sev_tab[i].severity == 0 && firstfree == -1)
580Sstevel@tonic-gate 			firstfree = i;
590Sstevel@tonic-gate 		if (__pfmt_sev_tab[i].severity == severity)
600Sstevel@tonic-gate 			break;
610Sstevel@tonic-gate 	}
620Sstevel@tonic-gate 
630Sstevel@tonic-gate 	if (i == __pfmt_nsev) {
640Sstevel@tonic-gate 		if (string == NULL)	/* Removing non-existing severity */
650Sstevel@tonic-gate 			return (0);
660Sstevel@tonic-gate 		if (firstfree != -1)	/* Re-use old entry */
670Sstevel@tonic-gate 			i = firstfree;
680Sstevel@tonic-gate 		else {
690Sstevel@tonic-gate 			/* Allocate new entry */
700Sstevel@tonic-gate 			new = libc_realloc(__pfmt_sev_tab,
710Sstevel@tonic-gate 			    sizeof (struct sev_tab) * (__pfmt_nsev + 1));
720Sstevel@tonic-gate 			if (new == NULL) {
730Sstevel@tonic-gate 				lrw_unlock(&_rw_pfmt_sev_tab);
740Sstevel@tonic-gate 				return (-1);
750Sstevel@tonic-gate 			}
760Sstevel@tonic-gate 			__pfmt_nsev++;
770Sstevel@tonic-gate 			__pfmt_sev_tab = new;
780Sstevel@tonic-gate 		}
790Sstevel@tonic-gate 	}
800Sstevel@tonic-gate 	if (string == NULL) {
810Sstevel@tonic-gate 		if (__pfmt_sev_tab[i].string)
820Sstevel@tonic-gate 			libc_free(__pfmt_sev_tab[i].string);
830Sstevel@tonic-gate 		__pfmt_sev_tab[i].severity = 0;
840Sstevel@tonic-gate 		__pfmt_sev_tab[i].string = NULL;
850Sstevel@tonic-gate 		lrw_unlock(&_rw_pfmt_sev_tab);
860Sstevel@tonic-gate 		return (0);
870Sstevel@tonic-gate 	}
880Sstevel@tonic-gate 	new = libc_realloc(__pfmt_sev_tab[i].string, strlen(string) + 1);
890Sstevel@tonic-gate 	if (new == NULL) {
900Sstevel@tonic-gate 		lrw_unlock(&_rw_pfmt_sev_tab);
910Sstevel@tonic-gate 		return (-1);
920Sstevel@tonic-gate 	}
930Sstevel@tonic-gate 	__pfmt_sev_tab[i].severity = severity;
940Sstevel@tonic-gate 	__pfmt_sev_tab[i].string = new;
950Sstevel@tonic-gate 	(void) strcpy(__pfmt_sev_tab[i].string, string);
960Sstevel@tonic-gate 	lrw_unlock(&_rw_pfmt_sev_tab);
970Sstevel@tonic-gate 	return (0);
980Sstevel@tonic-gate }
99