/usr/include/strigi/tarinputstream.h is in libstreams-dev 0.7.8-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | /* This file is part of Strigi Desktop Search
*
* Copyright (C) 2006 Jos van den Oever <jos@vandenoever.info>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef STRIGI_TARINPUTSTREAM_H
#define STRIGI_TARINPUTSTREAM_H
#include <strigi/streambase.h>
#include <strigi/substreamprovider.h>
namespace Strigi {
/**
* Implementation of SubStreamProvider for reading the tar format. The InputStream recognizes this format:
* - tar archive is composed of blocks of 512 bytes. Every file and every header starts at an offset
* of a multiple of 512.
* - each file starts with a header of size 512.
* - up to 100 bytes of filename at offset 0 of file header
* - file size is given in 7 bytes of octal format starting at position 124 of the file header
* - if the filename is '././\@LongLink' then this block contains the length of the file name at
* position 124. The next blocks contain the filename. The block after that is the real header
* with the file size and only then does the file contents start.
*
* http://www.gnu.org/software/tar/manual/html_node/Standard.html
**/
class STREAMS_EXPORT TarInputStream : public SubStreamProvider {
private:
// information relating to the current entry
int32_t numPaddingBytes;
void readFileName(int32_t len);
const char* readHeader();
void parseHeader();
int32_t readOctalField(const char *b, int32_t offset);
void readLongLink(const char *b);
public:
explicit TarInputStream(InputStream *input);
~TarInputStream();
InputStream* nextEntry();
static bool checkHeader(const char* data, int32_t datasize);
static SubStreamProvider* factory(InputStream* input) {
return new TarInputStream(input);
}
};
} // end namespace Strigi
#endif
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