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
43 static const char *pname;
44
45 #pragma init(getpname)
46 const char *
getpname(void)47 getpname(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
67 void
vwarn(const char * format,va_list alist)68 vwarn(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*/
82 void
warn(const char * format,...)83 warn(const char *format, ...)
84 {
85 va_list alist;
86
87 va_start(alist, format);
88 vwarn(format, alist);
89 va_end(alist);
90 }
91
92 void
vdie(const char * format,va_list alist)93 vdie(const char *format, va_list alist)
94 {
95 vwarn(format, alist);
96 exit(E_ERROR);
97 }
98
99 /*PRINTFLIKE1*/
100 void
die(const char * format,...)101 die(const char *format, ...)
102 {
103 va_list alist;
104
105 va_start(alist, format);
106 vdie(format, alist);
107 va_end(alist);
108 }
109
110 int
inj_set_errno(int err)111 inj_set_errno(int err)
112 {
113 errno = err;
114 return (-1);
115 }
116