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/*
* Copyright 2007-2018 Content Management AG
* All rights reserved.
*
* author: Max Kellermann <mk@cm4all.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef NET_HOST_PARSER_HXX
#define NET_HOST_PARSER_HXX
#include "util/StringView.hxx"
#include "util/Compiler.h"
/**
* Result type for ExtractHost().
*/
struct ExtractHostResult {
/**
* The host part of the address.
*
* If nothing was parsed, then this is nullptr.
*/
StringView host;
/**
* Pointer to the first character that was not parsed. On
* success, this is usually a pointer to the zero terminator or to
* a colon followed by a port number.
*
* If nothing was parsed, then this is a pointer to the given
* source string.
*/
const char *end;
constexpr bool HasFailed() const noexcept {
return host == nullptr;
}
};
/**
* Extract the host from a string in the form "IP:PORT" or
* "[IPv6]:PORT". Stops at the first invalid character (e.g. the
* colon).
*
* @param src the input string
*/
gcc_pure
ExtractHostResult
ExtractHost(const char *src) noexcept;
#endif
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