77 lines
2.3 KiB
C++
77 lines
2.3 KiB
C++
/*
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* Copyright 2007-2020 CM4all GmbH
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* All rights reserved.
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*
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* author: Max Kellermann <mk@cm4all.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef NET_HOST_PARSER_HXX
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#define NET_HOST_PARSER_HXX
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#include "util/StringView.hxx"
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#include "util/Compiler.h"
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/**
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* Result type for ExtractHost().
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*/
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struct ExtractHostResult {
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/**
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* The host part of the address.
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*
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* If nothing was parsed, then this is nullptr.
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*/
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StringView host;
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/**
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* Pointer to the first character that was not parsed. On
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* success, this is usually a pointer to the zero terminator or to
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* a colon followed by a port number.
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*
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* If nothing was parsed, then this is a pointer to the given
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* source string.
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*/
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const char *end;
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constexpr bool HasFailed() const noexcept {
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return host == nullptr;
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}
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};
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/**
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* Extract the host from a string in the form "IP:PORT" or
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* "[IPv6]:PORT". Stops at the first invalid character (e.g. the
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* colon).
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*
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* @param src the input string
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*/
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gcc_pure
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ExtractHostResult
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ExtractHost(const char *src) noexcept;
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#endif
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