addsev.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
#include "synonyms.h"
#include "mtlib.h"
#include "libc.h"
#include <stdlib.h>
#include <pfmt.h>
#include <thread.h>
#include "pfmt_data.h"
#include <sys/types.h>
#include <string.h>
#include <synch.h>
int
addsev(int severity, const char *string)
{
int i, firstfree;
void *new;
/* Cannot redefine standard severity */
if ((severity <= 4) || (severity > 255))
return (-1);
/* Locate severity in table */
lrw_wrlock(&_rw_pfmt_sev_tab);
for (i = 0, firstfree = -1; i < __pfmt_nsev; i++) {
if (__pfmt_sev_tab[i].severity == 0 && firstfree == -1)
firstfree = i;
if (__pfmt_sev_tab[i].severity == severity)
break;
}
if (i == __pfmt_nsev) {
if (string == NULL) /* Removing non-existing severity */
return (0);
if (firstfree != -1) /* Re-use old entry */
i = firstfree;
else {
/* Allocate new entry */
new = libc_realloc(__pfmt_sev_tab,
sizeof (struct sev_tab) * (__pfmt_nsev + 1));
if (new == NULL) {
lrw_unlock(&_rw_pfmt_sev_tab);
return (-1);
}
__pfmt_nsev++;
__pfmt_sev_tab = new;
}
}
if (string == NULL) {
if (__pfmt_sev_tab[i].string)
libc_free(__pfmt_sev_tab[i].string);
__pfmt_sev_tab[i].severity = 0;
__pfmt_sev_tab[i].string = NULL;
lrw_unlock(&_rw_pfmt_sev_tab);
return (0);
}
new = libc_realloc(__pfmt_sev_tab[i].string, strlen(string) + 1);
if (new == NULL) {
lrw_unlock(&_rw_pfmt_sev_tab);
return (-1);
}
__pfmt_sev_tab[i].severity = severity;
__pfmt_sev_tab[i].string = new;
(void) strcpy(__pfmt_sev_tab[i].string, string);
lrw_unlock(&_rw_pfmt_sev_tab);
return (0);
}