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81 lines
2.4 KiB
81 lines
2.4 KiB
/* |
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* ZeroTier One - Global Peer to Peer Ethernet |
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* Copyright (C) 2012-2013 ZeroTier Networks LLC |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* -- |
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* |
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* ZeroTier may be used and distributed under the terms of the GPLv3, which |
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html |
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* |
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* If you would like to embed ZeroTier into a commercial application or |
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* redistribute it in a modified binary form, please contact ZeroTier Networks |
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* LLC. Start here: http://www.zerotier.com/ |
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*/ |
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/* Converts files to LZ4-compressed C arrays, used in building installers. */ |
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#include <stdio.h> |
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#include <string.h> |
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#include <stdlib.h> |
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#include <stdint.h> |
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#include <iostream> |
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#include "node/Utils.hpp" |
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#include "ext/lz4/lz4.h" |
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#include "ext/lz4/lz4hc.h" |
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using namespace ZeroTier; |
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int main(int argc,char **argv) |
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{ |
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char tmp[16]; |
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if (argc != 3) { |
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std::cerr << "Usage: " << argv[0] << " <file> <name of C array>" << std::endl; |
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return -1; |
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} |
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std::string buf; |
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if (!Utils::readFile(argv[1],buf)) { |
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std::cerr << "Could not read " << argv[1] << std::endl; |
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return -1; |
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} |
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unsigned char *compbuf = new unsigned char[LZ4_compressBound((int)buf.length())]; |
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int complen = LZ4_compressHC(buf.data(),(char *)compbuf,(int)buf.length()); |
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if (complen <= 0) { |
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std::cerr << "Error compressing data." << std::endl; |
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return -1; |
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} |
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std::cout << "#define " << argv[2] << "_UNCOMPRESSED_LEN " << buf.length() << std::endl; |
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std::cout << "#define " << argv[2] << "_LZ4_LEN " << complen << std::endl; |
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std::cout << "static const unsigned char " << argv[2] << '[' << argv[2] << "_LZ4_LEN] = {"; |
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for(int i=0;i<complen;++i) { |
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if (!(i % 15)) |
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std::cout << std::endl << '\t'; |
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Utils::snprintf(tmp,sizeof(tmp),"0x%.2x",(unsigned int)compbuf[i]); |
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std::cout << tmp; |
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if (i != (complen - 1)) |
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std::cout << ','; |
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} |
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std::cout << std::endl << "};" << std::endl; |
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delete [] compbuf; |
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return 0; |
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}
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