83 lines
3.3 KiB
C++
83 lines
3.3 KiB
C++
/*
|
|
|
|
Copyright (c) 2003-2018, Arvid Norberg
|
|
All rights reserved.
|
|
|
|
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.
|
|
* Neither the name of the author nor the names of its
|
|
contributors may be used to endorse or promote products derived
|
|
from this software without specific prior written permission.
|
|
|
|
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 COPYRIGHT OWNER 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 TORRENT_HEX_HPP_INCLUDED
|
|
#define TORRENT_HEX_HPP_INCLUDED
|
|
|
|
#include "libtorrent/config.hpp"
|
|
#include "libtorrent/error_code.hpp"
|
|
#include "libtorrent/span.hpp"
|
|
|
|
#include <string>
|
|
|
|
namespace libtorrent {
|
|
|
|
namespace aux {
|
|
|
|
TORRENT_EXTRA_EXPORT int hex_to_int(char in);
|
|
TORRENT_EXTRA_EXPORT bool is_hex(span<char const> in);
|
|
|
|
// The overload taking a ``std::string`` converts (binary) the string ``s``
|
|
// to hexadecimal representation and returns it.
|
|
// The overload taking a ``char const*`` and a length converts the binary
|
|
// buffer [``in``, ``in`` + len) to hexadecimal and prints it to the buffer
|
|
// ``out``. The caller is responsible for making sure the buffer pointed to
|
|
// by ``out`` is large enough, i.e. has at least len * 2 bytes of space.
|
|
TORRENT_DEPRECATED_EXPORT std::string to_hex(span<char const> s);
|
|
TORRENT_DEPRECATED_EXPORT void to_hex(span<char const> in, char* out);
|
|
TORRENT_DEPRECATED_EXPORT void to_hex(char const* in, size_t const len, char* out);
|
|
|
|
// converts the buffer [``in``, ``in`` + len) from hexadecimal to
|
|
// binary. The binary output is written to the buffer pointed to
|
|
// by ``out``. The caller is responsible for making sure the buffer
|
|
// at ``out`` has enough space for the result to be written to, i.e.
|
|
// (len + 1) / 2 bytes.
|
|
TORRENT_DEPRECATED_EXPORT bool from_hex(span<char const> in, char* out);
|
|
|
|
}
|
|
|
|
#ifndef TORRENT_NO_DEPRECATE
|
|
// deprecated in 1.2
|
|
TORRENT_DEPRECATED
|
|
inline void to_hex(char const* in, int len, char* out)
|
|
{ aux::to_hex({in, static_cast<size_t>(len)}, out); }
|
|
TORRENT_DEPRECATED
|
|
inline std::string to_hex(std::string const& s)
|
|
{ return aux::to_hex(s); }
|
|
TORRENT_DEPRECATED
|
|
inline bool from_hex(char const *in, int len, char* out)
|
|
{ return aux::from_hex({in, static_cast<size_t>(len)}, out); }
|
|
#endif
|
|
}
|
|
|
|
#endif // TORRENT_HEX_HPP_INCLUDED
|