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, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29/*
30 * Error-handling routines
31 */
32
33#include <string.h>
34#include <stdlib.h>
35#include <stdarg.h>
36#include <stdio.h>
37#include <errno.h>
38
39#include <inj_err.h>
40
41/*LINTLIBRARY*/
42
43static const char *pname;
44
45#pragma init(getpname)
46const char *
47getpname(void)
48{
49	const char *p, *q;
50
51	if (pname != NULL)
52		return (pname);
53
54	if ((p = getexecname()) != NULL)
55		q = strrchr(p, '/');
56	else
57		q = NULL;
58
59	if (q == NULL)
60		pname = p;
61	else
62		pname = q + 1;
63
64	return (pname);
65}
66
67void
68vwarn(const char *format, va_list alist)
69{
70	int err = errno;
71
72	if (pname != NULL)
73		(void) fprintf(stderr, "%s: ", pname);
74
75	(void) vfprintf(stderr, format, alist);
76
77	if (strchr(format, '\n') == NULL)
78		(void) fprintf(stderr, ": %s\n", strerror(err));
79}
80
81/*PRINTFLIKE1*/
82void
83warn(const char *format, ...)
84{
85	va_list alist;
86
87	va_start(alist, format);
88	vwarn(format, alist);
89	va_end(alist);
90}
91
92void
93vdie(const char *format, va_list alist)
94{
95	vwarn(format, alist);
96	exit(E_ERROR);
97}
98
99/*PRINTFLIKE1*/
100void
101die(const char *format, ...)
102{
103	va_list alist;
104
105	va_start(alist, format);
106	vdie(format, alist);
107	va_end(alist);
108}
109
110int
111inj_set_errno(int err)
112{
113	errno = err;
114	return (-1);
115}
116