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