Handle possible null pointers from malloc/strdup/strndup()
[zfs.git] / module / os / freebsd / spl / spl_cmn_err.c
blob2157da8ebf200eb8525c76db7aef5d1ca2bbfd9f
1 /*
2 * CDDL HEADER START
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.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or https://opensource.org/licenses/CDDL-1.0.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
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]
19 * CDDL HEADER END
21 * $FreeBSD$
24 * Copyright 2007 John Birrell <jb@FreeBSD.org>. All rights reserved.
25 * Copyright 2012 Martin Matuska <mm@FreeBSD.org>. All rights reserved.
28 #include <sys/cdefs.h>
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/cmn_err.h>
33 void
34 vcmn_err(int ce, const char *fmt, va_list adx)
36 char buf[256];
37 const char *prefix;
39 prefix = NULL; /* silence unwitty compilers */
40 switch (ce) {
41 case CE_CONT:
42 prefix = "Solaris(cont): ";
43 break;
44 case CE_NOTE:
45 prefix = "Solaris: NOTICE: ";
46 break;
47 case CE_WARN:
48 prefix = "Solaris: WARNING: ";
49 break;
50 case CE_PANIC:
51 prefix = "Solaris(panic): ";
52 break;
53 case CE_IGNORE:
54 break;
55 default:
56 panic("Solaris: unknown severity level");
58 if (ce == CE_PANIC) {
59 vsnprintf(buf, sizeof (buf), fmt, adx);
60 panic("%s%s", prefix, buf);
62 if (ce != CE_IGNORE) {
63 printf("%s", prefix);
64 vprintf(fmt, adx);
65 printf("\n");
69 void
70 cmn_err(int type, const char *fmt, ...)
72 va_list ap;
74 va_start(ap, fmt);
75 vcmn_err(type, fmt, ap);
76 va_end(ap);