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 weak _addsev = addsev
31
32 #include "lint.h"
33 #include "mtlib.h"
34 #include "libc.h"
35 #include <stdlib.h>
36 #include <pfmt.h>
37 #include <thread.h>
38 #include "pfmt_data.h"
39 #include <sys/types.h>
40 #include <string.h>
41 #include <synch.h>
42
43 int
addsev(int severity,const char * string)44 addsev(int severity, const char *string)
45 {
46 int i, firstfree;
47 void *new;
48
49 /* Cannot redefine standard severity */
50 if ((severity <= 4) || (severity > 255))
51 return (-1);
52
53 /* Locate severity in table */
54 lrw_wrlock(&_rw_pfmt_sev_tab);
55 for (i = 0, firstfree = -1; i < __pfmt_nsev; i++) {
56 if (__pfmt_sev_tab[i].severity == 0 && firstfree == -1)
57 firstfree = i;
58 if (__pfmt_sev_tab[i].severity == severity)
59 break;
60 }
61
62 if (i == __pfmt_nsev) {
63 if (string == NULL) /* Removing non-existing severity */
64 return (0);
65 if (firstfree != -1) /* Re-use old entry */
66 i = firstfree;
67 else {
68 /* Allocate new entry */
69 new = libc_realloc(__pfmt_sev_tab,
70 sizeof (struct sev_tab) * (__pfmt_nsev + 1));
71 if (new == NULL) {
72 lrw_unlock(&_rw_pfmt_sev_tab);
73 return (-1);
74 }
75 __pfmt_nsev++;
76 __pfmt_sev_tab = new;
77 }
78 }
79 if (string == NULL) {
80 if (__pfmt_sev_tab[i].string)
81 libc_free(__pfmt_sev_tab[i].string);
82 __pfmt_sev_tab[i].severity = 0;
83 __pfmt_sev_tab[i].string = NULL;
84 lrw_unlock(&_rw_pfmt_sev_tab);
85 return (0);
86 }
87 new = libc_realloc(__pfmt_sev_tab[i].string, strlen(string) + 1);
88 if (new == NULL) {
89 lrw_unlock(&_rw_pfmt_sev_tab);
90 return (-1);
91 }
92 __pfmt_sev_tab[i].severity = severity;
93 __pfmt_sev_tab[i].string = new;
94 (void) strcpy(__pfmt_sev_tab[i].string, string);
95 lrw_unlock(&_rw_pfmt_sev_tab);
96 return (0);
97 }
98