1 /*- 2 * Copyright (c) 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #if defined(LIBC_SCCS) && !defined(lint) 35 static char sccsid[] = "@(#)err.c 8.1 (Berkeley) 6/4/93"; 36 #endif /* LIBC_SCCS and not lint */ 37 38 #include <err.h> 39 #include <errno.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 44 #ifdef __STDC__ 45 #include <stdarg.h> 46 #else 47 #include <varargs.h> 48 #endif 49 50 extern char *__progname; /* Program name, from crt0. */ 51 52 __dead void 53 #ifdef __STDC__ 54 err(int eval, const char *fmt, ...) 55 #else 56 err(eval, fmt, va_alist) 57 int eval; 58 const char *fmt; 59 va_dcl 60 #endif 61 { 62 va_list ap; 63 #if __STDC__ 64 va_start(ap, fmt); 65 #else 66 va_start(ap); 67 #endif 68 verr(eval, fmt, ap); 69 va_end(ap); 70 } 71 72 __dead void 73 verr(eval, fmt, ap) 74 int eval; 75 const char *fmt; 76 va_list ap; 77 { 78 int sverrno; 79 80 sverrno = errno; 81 (void)fprintf(stderr, "%s: ", __progname); 82 if (fmt != NULL) { 83 (void)vfprintf(stderr, fmt, ap); 84 (void)fprintf(stderr, ": "); 85 } 86 (void)fprintf(stderr, "%s\n", strerror(sverrno)); 87 exit(eval); 88 } 89 90 __dead void 91 #if __STDC__ 92 errx(int eval, const char *fmt, ...) 93 #else 94 errx(eval, fmt, va_alist) 95 int eval; 96 const char *fmt; 97 va_dcl 98 #endif 99 { 100 va_list ap; 101 #if __STDC__ 102 va_start(ap, fmt); 103 #else 104 va_start(ap); 105 #endif 106 verrx(eval, fmt, ap); 107 va_end(ap); 108 } 109 110 __dead void 111 verrx(eval, fmt, ap) 112 int eval; 113 const char *fmt; 114 va_list ap; 115 { 116 (void)fprintf(stderr, "%s: ", __progname); 117 if (fmt != NULL) 118 (void)vfprintf(stderr, fmt, ap); 119 (void)fprintf(stderr, "\n"); 120 exit(eval); 121 } 122 123 void 124 #if __STDC__ 125 warn(const char *fmt, ...) 126 #else 127 warn(fmt, va_alist) 128 const char *fmt; 129 va_dcl 130 #endif 131 { 132 va_list ap; 133 #if __STDC__ 134 va_start(ap, fmt); 135 #else 136 va_start(ap); 137 #endif 138 vwarn(fmt, ap); 139 va_end(ap); 140 } 141 142 void 143 vwarn(fmt, ap) 144 const char *fmt; 145 va_list ap; 146 { 147 int sverrno; 148 149 sverrno = errno; 150 (void)fprintf(stderr, "%s: ", __progname); 151 if (fmt != NULL) { 152 (void)vfprintf(stderr, fmt, ap); 153 (void)fprintf(stderr, ": "); 154 } 155 (void)fprintf(stderr, "%s\n", strerror(sverrno)); 156 } 157 158 void 159 #ifdef __STDC__ 160 warnx(const char *fmt, ...) 161 #else 162 warnx(fmt, va_alist) 163 const char *fmt; 164 va_dcl 165 #endif 166 { 167 va_list ap; 168 #ifdef __STDC__ 169 va_start(ap, fmt); 170 #else 171 va_start(ap); 172 #endif 173 vwarnx(fmt, ap); 174 va_end(ap); 175 } 176 177 void 178 vwarnx(fmt, ap) 179 const char *fmt; 180 va_list ap; 181 { 182 (void)fprintf(stderr, "%s: ", __progname); 183 if (fmt != NULL) 184 (void)vfprintf(stderr, fmt, ap); 185 (void)fprintf(stderr, "\n"); 186 } 187