1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/other-licenses/7zstub/src/7zip/Archive/7z/7zMethodID.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,76 @@
1.4 +// 7zMethodID.cpp
1.5 +
1.6 +#include "StdAfx.h"
1.7 +
1.8 +#include "7zMethodID.h"
1.9 +
1.10 +namespace NArchive {
1.11 +namespace N7z {
1.12 +
1.13 +static wchar_t GetHex(Byte value)
1.14 +{
1.15 + return (value < 10) ? ('0' + value) : ('A' + (value - 10));
1.16 +}
1.17 +
1.18 +static bool HexCharToInt(wchar_t value, Byte &result)
1.19 +{
1.20 + if (value >= '0' && value <= '9')
1.21 + result = value - '0';
1.22 + else if (value >= 'a' && value <= 'f')
1.23 + result = 10 + value - 'a';
1.24 + else if (value >= 'A' && value <= 'F')
1.25 + result = 10 + value - 'A';
1.26 + else
1.27 + return false;
1.28 + return true;
1.29 +}
1.30 +
1.31 +static bool TwoHexCharsToInt(wchar_t valueHigh, wchar_t valueLow, Byte &result)
1.32 +{
1.33 + Byte resultHigh, resultLow;
1.34 + if (!HexCharToInt(valueHigh, resultHigh))
1.35 + return false;
1.36 + if (!HexCharToInt(valueLow, resultLow))
1.37 + return false;
1.38 + result = (resultHigh << 4) + resultLow;
1.39 + return true;
1.40 +}
1.41 +
1.42 +UString CMethodID::ConvertToString() const
1.43 +{
1.44 + UString result;
1.45 + for (int i = 0; i < IDSize; i++)
1.46 + {
1.47 + Byte b = ID[i];
1.48 + result += GetHex(b >> 4);
1.49 + result += GetHex(b & 0xF);
1.50 + }
1.51 + return result;
1.52 +}
1.53 +
1.54 +bool CMethodID::ConvertFromString(const UString &srcString)
1.55 +{
1.56 + int length = srcString.Length();
1.57 + if ((length & 1) != 0 || (length >> 1) > kMethodIDSize)
1.58 + return false;
1.59 + IDSize = length / 2;
1.60 + UInt32 i;
1.61 + for(i = 0; i < IDSize; i++)
1.62 + if (!TwoHexCharsToInt(srcString[i * 2], srcString[i * 2 + 1], ID[i]))
1.63 + return false;
1.64 + for(; i < kMethodIDSize; i++)
1.65 + ID[i] = 0;
1.66 + return true;
1.67 +}
1.68 +
1.69 +bool operator==(const CMethodID &a1, const CMethodID &a2)
1.70 +{
1.71 + if (a1.IDSize != a2.IDSize)
1.72 + return false;
1.73 + for (UInt32 i = 0; i < a1.IDSize; i++)
1.74 + if (a1.ID[i] != a2.ID[i])
1.75 + return false;
1.76 + return true;
1.77 +}
1.78 +
1.79 +}}
