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Diffstat (limited to 'contrib/epee/include/zlib_helper.h')
| -rw-r--r-- | contrib/epee/include/zlib_helper.h | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/contrib/epee/include/zlib_helper.h b/contrib/epee/include/zlib_helper.h deleted file mode 100644 index 46c7f48e6..000000000 --- a/contrib/epee/include/zlib_helper.h +++ /dev/null @@ -1,139 +0,0 @@ -// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net -// 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 Andrey N. Sabelnikov 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 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. -// - - -#pragma once -extern "C" { -#include "zlib/zlib.h" -} -#pragma comment(lib, "zlibstat.lib") - -namespace epee -{ -namespace zlib_helper -{ - inline - bool pack(std::string& target){ - std::string result_packed_buff; - - z_stream zstream = {0}; - int ret = deflateInit(&zstream, Z_DEFAULT_COMPRESSION); - if(target.size()) - { - - - result_packed_buff.resize(target.size()*2, 'X'); - - zstream.next_in = (Bytef*)target.data(); - zstream.avail_in = (uInt)target.size(); - zstream.next_out = (Bytef*)result_packed_buff.data(); - zstream.avail_out = (uInt)result_packed_buff.size(); - - ret = deflate(&zstream, Z_FINISH); - CHECK_AND_ASSERT_MES(ret>=0, false, "Failed to deflate. err = " << ret); - - if(result_packed_buff.size() != zstream.avail_out) - result_packed_buff.resize(result_packed_buff.size()-zstream.avail_out); - - - result_packed_buff.erase(0, 2); - target.swap(result_packed_buff); - } - - deflateEnd(& zstream ); - return true; - } - - inline bool unpack(std::string& target) - { - z_stream zstream = {0}; - int ret = inflateInit(&zstream);// - - std::string decode_summary_buff; - size_t ungzip_buff_size = target.size() * 0x30; - std::string current_decode_buff(ungzip_buff_size, 'X'); - - while(target.size()) - { - - - zstream.next_out = (Bytef*)current_decode_buff.data(); - zstream.avail_out = (uInt)ungzip_buff_size; - - int flag = Z_SYNC_FLUSH; - - static char dummy_head[2] = - { - 0x8 + 0x7 * 0x10, - (((0x8 + 0x7 * 0x10) * 0x100 + 30) / 31 * 31) & 0xFF, - }; - zstream.next_in = (Bytef*) dummy_head; - zstream.avail_in = sizeof(dummy_head); - ret = inflate(&zstream, Z_NO_FLUSH); - if (ret != Z_OK) - { - LOCAL_ASSERT(0); - return false; - } - - zstream.next_in = (Bytef*)target.data(); - zstream.avail_in = (uInt)target.size(); - - ret = inflate(&zstream, Z_SYNC_FLUSH); - if (ret != Z_OK && ret != Z_STREAM_END) - { - LOCAL_ASSERT(0); - return false; - } - - - target.erase(0, target.size()-zstream.avail_in); - - - if(ungzip_buff_size == zstream.avail_out) - { - LOG_ERROR("Can't unpack buffer"); - return false; - } - - - current_decode_buff.resize(ungzip_buff_size - zstream.avail_out); - if(decode_summary_buff.size()) - decode_summary_buff += current_decode_buff; - else - current_decode_buff.swap(decode_summary_buff); - - current_decode_buff.resize(ungzip_buff_size); - } - - inflateEnd(&zstream ); - - decode_summary_buff.swap(target); - return 1; - } - -}; -}//namespace epee |