diff options
Diffstat (limited to 'lib/qt-tar-xz/QXzDecode.cpp')
| -rw-r--r-- | lib/qt-tar-xz/QXzDecode.cpp | 214 |
1 files changed, 107 insertions, 107 deletions
diff --git a/lib/qt-tar-xz/QXzDecode.cpp b/lib/qt-tar-xz/QXzDecode.cpp index 2cf1209..005ce10 100644 --- a/lib/qt-tar-xz/QXzDecode.cpp +++ b/lib/qt-tar-xz/QXzDecode.cpp @@ -14,133 +14,133 @@ static uint8_t out[BUFSIZ]; QXzDecode::QXzDecode(QByteArray data,quint64 maxSize) { - error="Unknow error"; - this->data=data; - this->maxSize=maxSize; - isDecoded=false; + error="Unknow error"; + this->data=data; + this->maxSize=maxSize; + isDecoded=false; } bool QXzDecode::decodeStream(QDataStream *stream_xz_decode_in,QDataStream *stream_xz_decode_out) { - isDecoded=false; - struct xz_buf b; - struct xz_dec *s; - enum xz_ret ret; - - xz_crc32_init(); - - /* - * Support up to 64 MiB dictionary. The actually needed memory - * is allocated once the headers have been parsed. - */ - s = xz_dec_init(XZ_DYNALLOC, 1 << 26); - if (s == NULL) { - error=tr("Memory allocation failed"); - xz_dec_end(s); - return isDecoded; - } - - b.in = in; - b.in_pos = 0; - b.in_size = 0; - b.out = out; - b.out_pos = 0; - b.out_size = BUFSIZ; - - while (true) { - //input of data - if (b.in_pos == b.in_size) { - b.in_size = stream_xz_decode_in->readRawData((char *)in,sizeof(in)); - b.in_pos = 0; - } - - ret = xz_dec_run(s, &b); - - //output of data - if (b.out_pos == sizeof(out)) - { - if (stream_xz_decode_out->writeRawData((char *)out,b.out_pos) != (int)b.out_pos) - { - error=tr("Write error"); - xz_dec_end(s); - return isDecoded; - } - b.out_pos = 0; - } - - if (ret == XZ_OK) - continue; + isDecoded=false; + struct xz_buf b; + struct xz_dec *s; + enum xz_ret ret; + + xz_crc32_init(); + + /* + * Support up to 64 MiB dictionary. The actually needed memory + * is allocated once the headers have been parsed. + */ + s = xz_dec_init(XZ_DYNALLOC, 1 << 26); + if (s == NULL) { + error=tr("Memory allocation failed"); + xz_dec_end(s); + return isDecoded; + } + + b.in = in; + b.in_pos = 0; + b.in_size = 0; + b.out = out; + b.out_pos = 0; + b.out_size = BUFSIZ; + + while (true) { + //input of data + if (b.in_pos == b.in_size) { + b.in_size = stream_xz_decode_in->readRawData((char *)in,sizeof(in)); + b.in_pos = 0; + } + + ret = xz_dec_run(s, &b); + + //output of data + if (b.out_pos == sizeof(out)) + { + if (static_cast<size_t>(stream_xz_decode_out->writeRawData((char *)out,static_cast<int>(b.out_pos))) != b.out_pos) + { + error=tr("Write error"); + xz_dec_end(s); + return isDecoded; + } + b.out_pos = 0; + } + + if (ret == XZ_OK) + continue; #ifdef XZ_DEC_ANY_CHECK - if (ret == XZ_UNSUPPORTED_CHECK) { - continue; - } + if (ret == XZ_UNSUPPORTED_CHECK) { + continue; + } #endif - if (stream_xz_decode_out->writeRawData((char *)out,b.out_pos) != (int)b.out_pos) - { - error=tr("Write error"); - xz_dec_end(s); - return isDecoded; - } - - switch (ret) { - case XZ_STREAM_END: - xz_dec_end(s); - isDecoded=true; - return isDecoded; - case XZ_MEM_ERROR: - error=tr("Memory allocation failed"); - xz_dec_end(s); - return isDecoded; - case XZ_MEMLIMIT_ERROR: - error=tr("Memory usage limit reached"); - xz_dec_end(s); - return isDecoded; - case XZ_FORMAT_ERROR: - error=tr("Not a .xz file"); - xz_dec_end(s); - return isDecoded; - case XZ_OPTIONS_ERROR: - error=tr("Unsupported options in the .xz headers"); - xz_dec_end(s); - return isDecoded; - case XZ_DATA_ERROR: - case XZ_BUF_ERROR: - error=tr("The file is corrupted"); - xz_dec_end(s); - return isDecoded; - default: - error=tr("Bug!"); - xz_dec_end(s); - return isDecoded; - } - } + if (static_cast<size_t>(stream_xz_decode_out->writeRawData((char *)out,static_cast<int>(b.out_pos))) != b.out_pos) + { + error=tr("Write error"); + xz_dec_end(s); + return isDecoded; + } + + switch (ret) { + case XZ_STREAM_END: + xz_dec_end(s); + isDecoded=true; + return isDecoded; + case XZ_MEM_ERROR: + error=tr("Memory allocation failed"); + xz_dec_end(s); + return isDecoded; + case XZ_MEMLIMIT_ERROR: + error=tr("Memory usage limit reached"); + xz_dec_end(s); + return isDecoded; + case XZ_FORMAT_ERROR: + error=tr("Not a .xz file"); + xz_dec_end(s); + return isDecoded; + case XZ_OPTIONS_ERROR: + error=tr("Unsupported options in the .xz headers"); + xz_dec_end(s); + return isDecoded; + case XZ_DATA_ERROR: + case XZ_BUF_ERROR: + error=tr("The file is corrupted"); + xz_dec_end(s); + return isDecoded; + default: + error=tr("Bug!"); + xz_dec_end(s); + return isDecoded; + } + } } bool QXzDecode::decode() { - if(data.size() < 32) // check the minimal size - error=tr("The input data is too short"); - QByteArray outputData; - QDataStream stream_xz_decode_in(&data,QIODevice::ReadOnly); - QDataStream stream_xz_decode_out(&outputData,QIODevice::WriteOnly); - int returnVal=decodeStream(&stream_xz_decode_in,&stream_xz_decode_out); - data=outputData; - return returnVal; + if(data.size() < 32) // check the minimal size + error=tr("The input data is too short"); + QByteArray outputData; + QDataStream stream_xz_decode_in(&data,QIODevice::ReadOnly); + QDataStream stream_xz_decode_out(&outputData,QIODevice::WriteOnly); + int returnVal=decodeStream(&stream_xz_decode_in,&stream_xz_decode_out); + data=outputData; + return returnVal; } QByteArray QXzDecode::decodedData() { - if(isDecoded) - return data; - else - return QByteArray(); + if(isDecoded) + return data; + else + return QByteArray(); } QString QXzDecode::errorString() { - return error; + return error; } |