250 lines
7.2 KiB
C++
250 lines
7.2 KiB
C++
/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
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Language: C++
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Date: $Date$
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Version: $Revision$
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#include "cmCPackTGZGenerator.h"
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#include "cmake.h"
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#include "cmGlobalGenerator.h"
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#include "cmLocalGenerator.h"
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#include "cmSystemTools.h"
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#include "cmMakefile.h"
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#include "cmGeneratedFileStream.h"
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#include "cmCPackLog.h"
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#include <cmsys/SystemTools.hxx>
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#include <cmzlib/zutil.h>
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#include <libtar/libtar.h>
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#include <memory> // auto_ptr
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#include <fcntl.h>
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#include <errno.h>
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//----------------------------------------------------------------------
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class cmCPackTGZGeneratorForward
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{
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public:
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static int GenerateHeader(cmCPackTGZGenerator* gg, std::ostream* os)
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{
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return gg->GenerateHeader(os);
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}
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};
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//----------------------------------------------------------------------
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cmCPackTGZGenerator::cmCPackTGZGenerator()
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{
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}
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//----------------------------------------------------------------------
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cmCPackTGZGenerator::~cmCPackTGZGenerator()
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{
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}
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static const size_t cmCPackTGZ_Data_BlockSize = 16384;
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//----------------------------------------------------------------------
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class cmCPackTGZ_Data
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{
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public:
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cmCPackTGZ_Data(cmCPackTGZGenerator* gen) :
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OutputStream(0), Generator(gen), m_CompressionLevel(Z_DEFAULT_COMPRESSION) {}
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std::ostream* OutputStream;
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cmCPackTGZGenerator* Generator;
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char m_CompressedBuffer[cmCPackTGZ_Data_BlockSize];
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int m_CompressionLevel;
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z_stream m_ZLibStream;
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uLong m_CRC;
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};
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//----------------------------------------------------------------------
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extern "C" {
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int cmCPackTGZ_Data_Open(void *client_data, const char* name, int oflags, mode_t mode);
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ssize_t cmCPackTGZ_Data_Write(void *client_data, void *buff, size_t n);
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int cmCPackTGZ_Data_Close(void *client_data);
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}
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//----------------------------------------------------------------------
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int cmCPackTGZ_Data_Open(void *client_data, const char* pathname, int, mode_t)
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{
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cmCPackTGZ_Data *mydata = (cmCPackTGZ_Data*)client_data;
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mydata->m_ZLibStream.zalloc = Z_NULL;
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mydata->m_ZLibStream.zfree = Z_NULL;
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mydata->m_ZLibStream.opaque = Z_NULL;
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int strategy = Z_DEFAULT_STRATEGY;
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if ( deflateInit2(&mydata->m_ZLibStream, mydata->m_CompressionLevel,
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Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, strategy) != Z_OK )
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{
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return -1;
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}
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cmGeneratedFileStream* gf = new cmGeneratedFileStream;
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// Open binary
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gf->Open(pathname, false, true);
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mydata->OutputStream = gf;
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if ( !*mydata->OutputStream )
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{
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return -1;
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}
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if ( !cmCPackTGZGeneratorForward::GenerateHeader(mydata->Generator,gf))
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{
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return -1;
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}
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mydata->m_CRC = crc32(0L, Z_NULL, 0);
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return 0;
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}
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//----------------------------------------------------------------------
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ssize_t cmCPackTGZ_Data_Write(void *client_data, void *buff, size_t n)
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{
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cmCPackTGZ_Data *mydata = (cmCPackTGZ_Data*)client_data;
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mydata->m_ZLibStream.avail_in = n;
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mydata->m_ZLibStream.next_in = reinterpret_cast<Bytef*>(buff);
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do {
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mydata->m_ZLibStream.avail_out = cmCPackTGZ_Data_BlockSize;
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mydata->m_ZLibStream.next_out = reinterpret_cast<Bytef*>(mydata->m_CompressedBuffer);
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int ret = deflate(&mydata->m_ZLibStream, (n?Z_NO_FLUSH:Z_FINISH)); // no bad return value
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if(ret == Z_STREAM_ERROR)
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{
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return 0;
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}
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size_t compressedSize = cmCPackTGZ_Data_BlockSize - mydata->m_ZLibStream.avail_out;
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mydata->OutputStream->write(reinterpret_cast<const char*>(mydata->m_CompressedBuffer), compressedSize);
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} while ( mydata->m_ZLibStream.avail_out == 0 );
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if ( !*mydata->OutputStream )
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{
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return 0;
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}
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if ( n )
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{
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mydata->m_CRC = crc32(mydata->m_CRC, reinterpret_cast<Bytef *>(buff), n);
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}
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return n;
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}
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//----------------------------------------------------------------------
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int cmCPackTGZ_Data_Close(void *client_data)
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{
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cmCPackTGZ_Data *mydata = (cmCPackTGZ_Data*)client_data;
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cmCPackTGZ_Data_Write(client_data, 0, 0);
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char buffer[8];
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int n;
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uLong x = mydata->m_CRC;
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for (n = 0; n < 4; n++) {
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buffer[n] = (int)(x & 0xff);
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x >>= 8;
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}
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x = mydata->m_ZLibStream.total_in;
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for (n = 0; n < 4; n++) {
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buffer[n+4] = (int)(x & 0xff);
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x >>= 8;
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}
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mydata->OutputStream->write(buffer, 8);
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(void)deflateEnd(&mydata->m_ZLibStream);
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delete mydata->OutputStream;
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mydata->OutputStream = 0;
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return (0);
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}
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//----------------------------------------------------------------------
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int cmCPackTGZGenerator::CompressFiles(const char* outFileName, const char* toplevel,
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const std::vector<std::string>& files)
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{
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cmCPackLogger(cmCPackLog::LOG_DEBUG, "Toplevel: " << toplevel << std::endl);
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cmCPackTGZ_Data mydata(this);
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TAR *t;
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char buf[TAR_MAXPATHLEN];
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char pathname[TAR_MAXPATHLEN];
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tartype_t gztype = {
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(openfunc_t)cmCPackTGZ_Data_Open,
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(closefunc_t)cmCPackTGZ_Data_Close,
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(readfunc_t)0,
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(writefunc_t)cmCPackTGZ_Data_Write,
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&mydata
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};
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// Ok, this libtar is not const safe. for now use auto_ptr hack
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char* realName = new char[ strlen(outFileName) + 1 ];
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std::auto_ptr<char> realNamePtr(realName);
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strcpy(realName, outFileName);
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int flags = O_WRONLY | O_CREAT;
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if (tar_open(&t, realName,
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&gztype,
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flags, 0644,
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(m_GeneratorVerbose?TAR_VERBOSE:0)
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| 0) == -1)
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{
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cmCPackLogger(cmCPackLog::LOG_ERROR, "Problem with tar_open(): " << strerror(errno) << std::endl);
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return 0;
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}
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std::vector<std::string>::const_iterator fileIt;
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for ( fileIt = files.begin(); fileIt != files.end(); ++ fileIt )
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{
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std::string rp = cmSystemTools::RelativePath(toplevel, fileIt->c_str());
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strncpy(pathname, fileIt->c_str(), sizeof(pathname));
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pathname[sizeof(pathname)-1] = 0;
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strncpy(buf, rp.c_str(), sizeof(buf));
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buf[sizeof(buf)-1] = 0;
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if (tar_append_tree(t, pathname, buf) != 0)
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{
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cmCPackLogger(cmCPackLog::LOG_ERROR,
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"Problem with tar_append_tree(\"" << buf << "\", \"" << pathname << "\"): "
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<< strerror(errno) << std::endl);
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tar_close(t);
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return 0;
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}
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}
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if (tar_append_eof(t) != 0)
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{
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cmCPackLogger(cmCPackLog::LOG_ERROR, "Problem with tar_append_eof(): " << strerror(errno) << std::endl);
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tar_close(t);
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return 0;
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}
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if (tar_close(t) != 0)
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{
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cmCPackLogger(cmCPackLog::LOG_ERROR, "Problem with tar_close(): " << strerror(errno) << std::endl);
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return 0;
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}
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return 1;
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}
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//----------------------------------------------------------------------
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int cmCPackTGZGenerator::GenerateHeader(std::ostream* os)
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{
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const int gz_magic[2] = {0x1f, 0x8b}; /* gzip magic header */
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char header[11];
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sprintf(header, "%c%c%c%c%c%c%c%c%c%c", gz_magic[0], gz_magic[1],
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Z_DEFLATED, 0 /*flags*/, 0,0,0,0 /*time*/, 0 /*xflags*/, OS_CODE);
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os->write(header, 10);
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return 1;
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}
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