1/* $NetBSD: error.c,v 1.6 2020/05/25 20:47:20 christos Exp $ */ 2 3/* 4 * Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC") 5 * Copyright (C) 1998-2001 Internet Software Consortium. 6 * 7 * Permission to use, copy, modify, and/or distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 12 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 13 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 14 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 15 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 16 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20/* Id: error.c,v 1.21 2007/06/19 23:47:17 tbox Exp */ 21 22/*! \file */ 23 24#include <config.h> 25 26#include <stdio.h> 27#include <stdlib.h> 28 29#include <isc/error.h> 30#include <isc/msgs.h> 31 32/*% Default unexpected callback. */ 33static void 34default_unexpected_callback(const char *, int, const char *, va_list) 35 ISC_FORMAT_PRINTF(3, 0); 36 37/*% Default fatal callback. */ 38static void 39default_fatal_callback(const char *, int, const char *, va_list) 40 ISC_FORMAT_PRINTF(3, 0); 41 42/*% unexpected_callback */ 43static isc_errorcallback_t unexpected_callback = default_unexpected_callback; 44static isc_errorcallback_t fatal_callback = default_fatal_callback; 45 46void 47isc_error_setunexpected(isc_errorcallback_t cb) { 48 if (cb == NULL) 49 unexpected_callback = default_unexpected_callback; 50 else 51 unexpected_callback = cb; 52} 53 54void 55isc_error_setfatal(isc_errorcallback_t cb) { 56 if (cb == NULL) 57 fatal_callback = default_fatal_callback; 58 else 59 fatal_callback = cb; 60} 61 62void 63isc_error_unexpected(const char *file, int line, const char *format, ...) { 64 va_list args; 65 66 va_start(args, format); 67 (unexpected_callback)(file, line, format, args); 68 va_end(args); 69} 70 71void 72isc_error_fatal(const char *file, int line, const char *format, ...) { 73 va_list args; 74 75 va_start(args, format); 76 (fatal_callback)(file, line, format, args); 77 va_end(args); 78 abort(); 79} 80 81void 82isc_error_runtimecheck(const char *file, int line, const char *expression) { 83 isc_error_fatal(file, line, "RUNTIME_CHECK(%s) %s", expression, 84 isc_msgcat_get(isc_msgcat, ISC_MSGSET_GENERAL, 85 ISC_MSG_FAILED, "failed")); 86} 87 88static void 89default_unexpected_callback(const char *file, int line, const char *format, 90 va_list args) 91{ 92 fprintf(stderr, "%s:%d: ", file, line); 93 vfprintf(stderr, format, args); 94 fprintf(stderr, "\n"); 95 fflush(stderr); 96} 97 98static void 99default_fatal_callback(const char *file, int line, const char *format, 100 va_list args) 101{ 102 fprintf(stderr, "%s:%d: %s: ", file, line, 103 isc_msgcat_get(isc_msgcat, ISC_MSGSET_GENERAL, 104 ISC_MSG_FATALERROR, "fatal error")); 105 vfprintf(stderr, format, args); 106 fprintf(stderr, "\n"); 107 fflush(stderr); 108} 109