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 /* 28 * Error-handling routines 29 */ 30 31 #include <string.h> 32 #include <stdlib.h> 33 #include <stdarg.h> 34 #include <stdio.h> 35 #include <errno.h> 36 37 #include <inj_err.h> 38 39 /*LINTLIBRARY*/ 40 41 static const char *pname; 42 43 #pragma init(getpname) 44 const char * 45 getpname(void) 46 { 47 const char *p, *q; 48 49 if (pname != NULL) 50 return (pname); 51 52 if ((p = getexecname()) != NULL) 53 q = strrchr(p, '/'); 54 else 55 q = NULL; 56 57 if (q == NULL) 58 pname = p; 59 else 60 pname = q + 1; 61 62 return (pname); 63 } 64 65 void 66 vwarn(const char *format, va_list alist) 67 { 68 int err = errno; 69 70 if (pname != NULL) 71 (void) fprintf(stderr, "%s: ", pname); 72 73 (void) vfprintf(stderr, format, alist); 74 75 if (strchr(format, '\n') == NULL) 76 (void) fprintf(stderr, ": %s\n", strerror(err)); 77 } 78 79 /*PRINTFLIKE1*/ 80 void 81 warn(const char *format, ...) 82 { 83 va_list alist; 84 85 va_start(alist, format); 86 vwarn(format, alist); 87 va_end(alist); 88 } 89 90 void 91 vdie(const char *format, va_list alist) 92 { 93 vwarn(format, alist); 94 exit(E_ERROR); 95 } 96 97 /*PRINTFLIKE1*/ 98 void 99 die(const char *format, ...) 100 { 101 va_list alist; 102 103 va_start(alist, format); 104 vdie(format, alist); 105 va_end(alist); 106 } 107 108 int 109 inj_set_errno(int err) 110 { 111 errno = err; 112 return (-1); 113 } 114