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 #include "precomp.h" 35 36 #if defined(LIBC_SCCS) && !defined(lint) 37 static char sccsid[] = "@(#)err.c 8.1 (Berkeley) 6/4/93"; 38 #endif /* LIBC_SCCS and not lint */ 39 40 extern char *__progname; /* Program name, from crt0. */ 41 42 void 43 err(int eval, const char *fmt, ...) 44 { 45 va_list ap; 46 va_start(ap, fmt); 47 verr(eval, fmt, ap); 48 va_end(ap); 49 } 50 51 void 52 verr(int eval, const char *fmt, va_list ap) 53 { 54 int sverrno; 55 56 sverrno = errno; 57 (void)fprintf(stderr, "%s: ", __progname); 58 if (fmt != NULL) { 59 (void)vfprintf(stderr, fmt, ap); 60 (void)fprintf(stderr, ": "); 61 } 62 (void)fprintf(stderr, "%s\n", strerror(sverrno)); 63 exit(eval); 64 } 65 66 void 67 errx(int eval, const char *fmt, ...) 68 { 69 va_list ap; 70 va_start(ap, fmt); 71 verrx(eval, fmt, ap); 72 va_end(ap); 73 } 74 75 void 76 verrx(int eval, const char *fmt, va_list ap) 77 { 78 (void)fprintf(stderr, "%s: ", __progname); 79 if (fmt != NULL) 80 (void)vfprintf(stderr, fmt, ap); 81 (void)fprintf(stderr, "\n"); 82 exit(eval); 83 } 84 85 void 86 warn(const char *fmt, ...) 87 { 88 va_list ap; 89 va_start(ap, fmt); 90 vwarn(fmt, ap); 91 va_end(ap); 92 } 93 94 void 95 vwarn(fmt, ap) 96 const char *fmt; 97 va_list ap; 98 { 99 int sverrno; 100 101 sverrno = errno; 102 (void)fprintf(stderr, "%s: ", __progname); 103 if (fmt != NULL) { 104 (void)vfprintf(stderr, fmt, ap); 105 (void)fprintf(stderr, ": "); 106 } 107 (void)fprintf(stderr, "%s\n", strerror(sverrno)); 108 } 109 110 void 111 warnx(const char *fmt, ...) 112 { 113 va_list ap; 114 va_start(ap, fmt); 115 vwarnx(fmt, ap); 116 va_end(ap); 117 } 118 119 void 120 vwarnx(fmt, ap) 121 const char *fmt; 122 va_list ap; 123 { 124 (void)fprintf(stderr, "%s: ", __progname); 125 if (fmt != NULL) 126 (void)vfprintf(stderr, fmt, ap); 127 (void)fprintf(stderr, "\n"); 128 } 129