Home | History | Annotate | Download | only in gen
      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 
     22 /*
     23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 /*	Copyright (c) 1988 AT&T	*/
     28 /*	  All Rights Reserved  	*/
     29 
     30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     31 
     32 #pragma	weak _addsev = addsev
     33 
     34 #include "lint.h"
     35 #include "mtlib.h"
     36 #include "libc.h"
     37 #include <stdlib.h>
     38 #include <pfmt.h>
     39 #include <thread.h>
     40 #include "pfmt_data.h"
     41 #include <sys/types.h>
     42 #include <string.h>
     43 #include <synch.h>
     44 
     45 int
     46 addsev(int severity, const char *string)
     47 {
     48 	int i, firstfree;
     49 	void *new;
     50 
     51 	/* Cannot redefine standard severity */
     52 	if ((severity <= 4) || (severity > 255))
     53 		return (-1);
     54 
     55 	/* Locate severity in table */
     56 	lrw_wrlock(&_rw_pfmt_sev_tab);
     57 	for (i = 0, firstfree = -1; i < __pfmt_nsev; i++) {
     58 		if (__pfmt_sev_tab[i].severity == 0 && firstfree == -1)
     59 			firstfree = i;
     60 		if (__pfmt_sev_tab[i].severity == severity)
     61 			break;
     62 	}
     63 
     64 	if (i == __pfmt_nsev) {
     65 		if (string == NULL)	/* Removing non-existing severity */
     66 			return (0);
     67 		if (firstfree != -1)	/* Re-use old entry */
     68 			i = firstfree;
     69 		else {
     70 			/* Allocate new entry */
     71 			new = libc_realloc(__pfmt_sev_tab,
     72 			    sizeof (struct sev_tab) * (__pfmt_nsev + 1));
     73 			if (new == NULL) {
     74 				lrw_unlock(&_rw_pfmt_sev_tab);
     75 				return (-1);
     76 			}
     77 			__pfmt_nsev++;
     78 			__pfmt_sev_tab = new;
     79 		}
     80 	}
     81 	if (string == NULL) {
     82 		if (__pfmt_sev_tab[i].string)
     83 			libc_free(__pfmt_sev_tab[i].string);
     84 		__pfmt_sev_tab[i].severity = 0;
     85 		__pfmt_sev_tab[i].string = NULL;
     86 		lrw_unlock(&_rw_pfmt_sev_tab);
     87 		return (0);
     88 	}
     89 	new = libc_realloc(__pfmt_sev_tab[i].string, strlen(string) + 1);
     90 	if (new == NULL) {
     91 		lrw_unlock(&_rw_pfmt_sev_tab);
     92 		return (-1);
     93 	}
     94 	__pfmt_sev_tab[i].severity = severity;
     95 	__pfmt_sev_tab[i].string = new;
     96 	(void) strcpy(__pfmt_sev_tab[i].string, string);
     97 	lrw_unlock(&_rw_pfmt_sev_tab);
     98 	return (0);
     99 }
    100