1 #include "config.h" 2 3 #if HAVE_ERR 4 5 int dummy; 6 7 #else 8 9 /* $Id: compat_err.c,v 1.4 2015/11/26 07:42:11 schwarze Exp $ */ 10 /* 11 * Copyright (c) 1993 12 * The Regents of the University of California. All rights reserved. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 */ 38 39 #include <errno.h> 40 #include <stdarg.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 45 static void vwarni(const char *, va_list); 46 static void vwarnxi(const char *, va_list); 47 48 static void 49 vwarnxi(const char *fmt, va_list ap) 50 { 51 fprintf(stderr, "%s: ", getprogname()); 52 if (fmt != NULL) 53 vfprintf(stderr, fmt, ap); 54 } 55 56 static void 57 vwarni(const char *fmt, va_list ap) 58 { 59 int sverrno; 60 61 sverrno = errno; 62 vwarnxi(fmt, ap); 63 if (fmt != NULL) 64 fputs(": ", stderr); 65 fprintf(stderr, "%s\n", strerror(sverrno)); 66 } 67 68 void 69 err(int eval, const char *fmt, ...) 70 { 71 va_list ap; 72 73 va_start(ap, fmt); 74 vwarni(fmt, ap); 75 va_end(ap); 76 exit(eval); 77 } 78 79 void 80 errx(int eval, const char *fmt, ...) 81 { 82 va_list ap; 83 84 va_start(ap, fmt); 85 vwarnxi(fmt, ap); 86 va_end(ap); 87 fputc('\n', stderr); 88 exit(eval); 89 } 90 91 void 92 warn(const char *fmt, ...) 93 { 94 va_list ap; 95 96 va_start(ap, fmt); 97 vwarni(fmt, ap); 98 va_end(ap); 99 } 100 101 void 102 warnx(const char *fmt, ...) 103 { 104 va_list ap; 105 106 va_start(ap, fmt); 107 vwarnxi(fmt, ap); 108 va_end(ap); 109 fputc('\n', stderr); 110 } 111 112 #endif 113