1/* 2 * Copyright (C) 1998-2001 Internet Software Consortium. 3 * 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM 9 * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL 10 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL 11 * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, 12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING 13 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, 14 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 15 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18/* $Id: error.c,v 1.16 2001/08/08 22:54:49 gson Exp $ */ 19 20#include <config.h> 21 22#include <stdio.h> 23#include <stdlib.h> 24 25#include <isc/error.h> 26#include <isc/msgs.h> 27 28static void 29default_unexpected_callback(const char *, int, const char *, va_list) 30 ISC_FORMAT_PRINTF(3, 0); 31 32static void 33default_fatal_callback(const char *, int, const char *, va_list) 34 ISC_FORMAT_PRINTF(3, 0); 35 36static isc_errorcallback_t unexpected_callback = default_unexpected_callback; 37static isc_errorcallback_t fatal_callback = default_fatal_callback; 38 39void 40isc_error_setunexpected(isc_errorcallback_t cb) { 41 if (cb == NULL) 42 unexpected_callback = default_unexpected_callback; 43 else 44 unexpected_callback = cb; 45} 46 47void 48isc_error_setfatal(isc_errorcallback_t cb) { 49 if (cb == NULL) 50 fatal_callback = default_fatal_callback; 51 else 52 fatal_callback = cb; 53} 54 55void 56isc_error_unexpected(const char *file, int line, const char *format, ...) { 57 va_list args; 58 59 va_start(args, format); 60 (unexpected_callback)(file, line, format, args); 61 va_end(args); 62} 63 64void 65isc_error_fatal(const char *file, int line, const char *format, ...) { 66 va_list args; 67 68 va_start(args, format); 69 (fatal_callback)(file, line, format, args); 70 va_end(args); 71 abort(); 72} 73 74void 75isc_error_runtimecheck(const char *file, int line, const char *expression) { 76 isc_error_fatal(file, line, "RUNTIME_CHECK(%s) %s", expression, 77 isc_msgcat_get(isc_msgcat, ISC_MSGSET_GENERAL, 78 ISC_MSG_FAILED, "failed")); 79} 80 81static void 82default_unexpected_callback(const char *file, int line, const char *format, 83 va_list args) 84{ 85 fprintf(stderr, "%s:%d: ", file, line); 86 vfprintf(stderr, format, args); 87 fprintf(stderr, "\n"); 88 fflush(stderr); 89} 90 91static void 92default_fatal_callback(const char *file, int line, const char *format, 93 va_list args) 94{ 95 fprintf(stderr, "%s:%d: %s: ", file, line, 96 isc_msgcat_get(isc_msgcat, ISC_MSGSET_GENERAL, 97 ISC_MSG_FATALERROR, "fatal error")); 98 vfprintf(stderr, format, args); 99 fprintf(stderr, "\n"); 100 fflush(stderr); 101} 102