From 45d6379135504814ab723b57f0eb8be23393a51d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 09:24:22 +0200 Subject: Adding upstream version 1:9.16.44. Signed-off-by: Daniel Baumann --- lib/isc/error.c | 94 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 lib/isc/error.c (limited to 'lib/isc/error.c') diff --git a/lib/isc/error.c b/lib/isc/error.c new file mode 100644 index 0000000..336be84 --- /dev/null +++ b/lib/isc/error.c @@ -0,0 +1,94 @@ +/* + * Copyright (C) Internet Systems Consortium, Inc. ("ISC") + * + * SPDX-License-Identifier: MPL-2.0 + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, you can obtain one at https://mozilla.org/MPL/2.0/. + * + * See the COPYRIGHT file distributed with this work for additional + * information regarding copyright ownership. + */ + +/*! \file */ + +#include +#include + +#include +#include + +/*% Default unexpected callback. */ +static void +default_unexpected_callback(const char *, int, const char *, va_list) + ISC_FORMAT_PRINTF(3, 0); + +/*% Default fatal callback. */ +static void +default_fatal_callback(const char *, int, const char *, va_list) + ISC_FORMAT_PRINTF(3, 0); + +/*% unexpected_callback */ +static isc_errorcallback_t unexpected_callback = default_unexpected_callback; +static isc_errorcallback_t fatal_callback = default_fatal_callback; + +void +isc_error_setunexpected(isc_errorcallback_t cb) { + if (cb == NULL) { + unexpected_callback = default_unexpected_callback; + } else { + unexpected_callback = cb; + } +} + +void +isc_error_setfatal(isc_errorcallback_t cb) { + if (cb == NULL) { + fatal_callback = default_fatal_callback; + } else { + fatal_callback = cb; + } +} + +void +isc_error_unexpected(const char *file, int line, const char *format, ...) { + va_list args; + + va_start(args, format); + (unexpected_callback)(file, line, format, args); + va_end(args); +} + +void +isc_error_fatal(const char *file, int line, const char *format, ...) { + va_list args; + + va_start(args, format); + (fatal_callback)(file, line, format, args); + va_end(args); + abort(); +} + +void +isc_error_runtimecheck(const char *file, int line, const char *expression) { + isc_error_fatal(file, line, "RUNTIME_CHECK(%s) failed", expression); +} + +static void +default_unexpected_callback(const char *file, int line, const char *format, + va_list args) { + fprintf(stderr, "%s:%d: ", file, line); + vfprintf(stderr, format, args); + fprintf(stderr, "\n"); + fflush(stderr); +} + +static void +default_fatal_callback(const char *file, int line, const char *format, + va_list args) { + fprintf(stderr, "%s:%d: fatal error: ", file, line); + vfprintf(stderr, format, args); + fprintf(stderr, "\n"); + fflush(stderr); +} -- cgit v1.2.3