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 (c) 1998-2001 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <string.h>
30 #include <stdlib.h>
31 #include <stdarg.h>
32 #include <stdio.h>
33 #include <errno.h>
34
35 #include "utils.h"
36
37 /*LINTLIBRARY*/
38
39 static const char *pname;
40
41 #pragma init(getpname)
42 const char *
getpname(void)43 getpname(void)
44 {
45 const char *p, *q;
46
47 if (pname != NULL)
48 return (pname);
49
50 if ((p = getexecname()) != NULL)
51 q = strrchr(p, '/');
52 else
53 q = NULL;
54
55 if (q == NULL)
56 pname = p;
57 else
58 pname = q + 1;
59
60 return (pname);
61 }
62
63 void
vwarn(const char * format,va_list alist)64 vwarn(const char *format, va_list alist)
65 {
66 int err = errno;
67
68 if (pname != NULL)
69 (void) fprintf(stderr, "%s: ", pname);
70
71 (void) vfprintf(stderr, format, alist);
72
73 if (strchr(format, '\n') == NULL)
74 (void) fprintf(stderr, ": %s\n", strerror(err));
75 }
76
77 /*PRINTFLIKE1*/
78 void
warn(const char * format,...)79 warn(const char *format, ...)
80 {
81 va_list alist;
82
83 va_start(alist, format);
84 vwarn(format, alist);
85 va_end(alist);
86 }
87
88 void
vdie(const char * format,va_list alist)89 vdie(const char *format, va_list alist)
90 {
91 vwarn(format, alist);
92 exit(E_ERROR);
93 }
94
95 /*PRINTFLIKE1*/
96 void
die(const char * format,...)97 die(const char *format, ...)
98 {
99 va_list alist;
100
101 va_start(alist, format);
102 vdie(format, alist);
103 va_end(alist);
104 }
105