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295 lines
8.1 KiB
295 lines
8.1 KiB
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License 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 <cm_zlib.h>
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#include <libtar/libtar.h>
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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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this->Compress = true;
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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, bool compress) :
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OutputStream(0), Generator(gen),
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CompressionLevel(Z_DEFAULT_COMPRESSION),
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Compress(compress) {}
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std::ostream* OutputStream;
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cmCPackTGZGenerator* Generator;
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char CompressedBuffer[cmCPackTGZ_Data_BlockSize];
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int CompressionLevel;
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z_stream ZLibStream;
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uLong CRC;
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bool Compress;
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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,
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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,
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int, mode_t)
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{
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cmCPackTGZ_Data *mydata = (cmCPackTGZ_Data*)client_data;
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if ( mydata->Compress )
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{
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mydata->ZLibStream.zalloc = Z_NULL;
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mydata->ZLibStream.zfree = Z_NULL;
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mydata->ZLibStream.opaque = Z_NULL;
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int strategy = Z_DEFAULT_STRATEGY;
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if ( deflateInit2(&mydata->ZLibStream, mydata->CompressionLevel,
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Z_DEFLATED, -MAX_WBITS, 8, strategy) != Z_OK )
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{
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return -1;
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}
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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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if ( mydata->Compress )
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{
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mydata->CRC = crc32(0L, Z_NULL, 0);
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}
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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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if ( mydata->Compress )
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{
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mydata->ZLibStream.avail_in = static_cast<uInt>(n);
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mydata->ZLibStream.next_in = reinterpret_cast<Bytef*>(buff);
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do {
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mydata->ZLibStream.avail_out = cmCPackTGZ_Data_BlockSize;
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mydata->ZLibStream.next_out
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= reinterpret_cast<Bytef*>(mydata->CompressedBuffer);
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// no bad return value
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int ret = deflate(&mydata->ZLibStream, (n?Z_NO_FLUSH:Z_FINISH));
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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
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= cmCPackTGZ_Data_BlockSize - mydata->ZLibStream.avail_out;
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mydata->OutputStream->write(
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reinterpret_cast<const char*>(mydata->CompressedBuffer),
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compressedSize);
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} while ( mydata->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->CRC = crc32(mydata->CRC, reinterpret_cast<Bytef *>(buff),
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static_cast<uInt>(n));
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}
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}
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else
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{
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mydata->OutputStream->write(reinterpret_cast<char*>(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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if ( mydata->Compress )
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{
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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->CRC;
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for (n = 0; n < 4; n++) {
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buffer[n] = static_cast<char>(x & 0xff);
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x >>= 8;
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}
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x = mydata->ZLibStream.total_in;
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for (n = 0; n < 4; n++) {
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buffer[n+4] = static_cast<char>(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->ZLibStream);
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}
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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::InitializeInternal()
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{
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this->SetOptionIfNotSet("CPACK_INCLUDE_TOPLEVEL_DIRECTORY", "1");
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return this->Superclass::InitializeInternal();
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}
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//----------------------------------------------------------------------
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int cmCPackTGZGenerator::CompressFiles(const char* outFileName,
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const char* toplevel, const std::vector<std::string>& files)
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{
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cmCPackLogger(cmCPackLog::LOG_DEBUG, "Toplevel: "
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<< (toplevel ? toplevel : "(NULL)") << std::endl);
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cmCPackTGZ_Data mydata(this, this->Compress);
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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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// This libtar is not const safe. Make a non-const copy of outFileName
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char* realName = new char[ strlen(outFileName) + 1 ];
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strcpy(realName, outFileName);
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int flags = O_WRONLY | O_CREAT;
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int options = 0;
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if(this->GeneratorVerbose)
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{
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options |= TAR_VERBOSE;
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}
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#ifdef __CYGWIN__
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options |= TAR_GNU;
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#endif
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if (tar_open(&t, realName,
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&gztype,
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flags, 0644,
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options) == -1)
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{
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cmCPackLogger(cmCPackLog::LOG_ERROR, "Problem with tar_open(): "
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<< strerror(errno) << std::endl);
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delete [] realName;
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return 0;
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}
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delete [] realName;
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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 << "\", \""
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<< 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(): "
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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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if (tar_close(t) != 0)
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{
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cmCPackLogger(cmCPackLog::LOG_ERROR, "Problem with tar_close(): "
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<< 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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if ( this->Compress )
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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*/,
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3 /* zlib os code for UNIX, not really used anyway */);
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os->write(header, 10);
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}
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return 1;
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}
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