mirror of
https://github.com/hashcat/hashcat.git
synced 2024-12-25 16:08:18 +00:00
70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
#include "rar.hpp"
|
|
|
|
EncodeFileName::EncodeFileName()
|
|
{
|
|
Flags=0;
|
|
FlagBits=0;
|
|
FlagsPos=0;
|
|
DestSize=0;
|
|
}
|
|
|
|
|
|
|
|
|
|
void EncodeFileName::Decode(char *Name,size_t NameSize,byte *EncName,size_t EncSize,
|
|
wchar *NameW,size_t MaxDecSize)
|
|
{
|
|
size_t EncPos=0,DecPos=0;
|
|
byte HighByte=EncPos<EncSize ? EncName[EncPos++] : 0;
|
|
while (EncPos<EncSize && DecPos<MaxDecSize)
|
|
{
|
|
if (FlagBits==0)
|
|
{
|
|
if (EncPos>=EncSize)
|
|
break;
|
|
Flags=EncName[EncPos++];
|
|
FlagBits=8;
|
|
}
|
|
switch(Flags>>6)
|
|
{
|
|
case 0:
|
|
if (EncPos>=EncSize)
|
|
break;
|
|
NameW[DecPos++]=EncName[EncPos++];
|
|
break;
|
|
case 1:
|
|
if (EncPos>=EncSize)
|
|
break;
|
|
NameW[DecPos++]=EncName[EncPos++]+(HighByte<<8);
|
|
break;
|
|
case 2:
|
|
if (EncPos+1>=EncSize)
|
|
break;
|
|
NameW[DecPos++]=EncName[EncPos]+(EncName[EncPos+1]<<8);
|
|
EncPos+=2;
|
|
break;
|
|
case 3:
|
|
{
|
|
if (EncPos>=EncSize)
|
|
break;
|
|
int Length=EncName[EncPos++];
|
|
if ((Length & 0x80)!=0)
|
|
{
|
|
if (EncPos>=EncSize)
|
|
break;
|
|
byte Correction=EncName[EncPos++];
|
|
for (Length=(Length&0x7f)+2;Length>0 && DecPos<MaxDecSize && DecPos<NameSize;Length--,DecPos++)
|
|
NameW[DecPos]=((Name[DecPos]+Correction)&0xff)+(HighByte<<8);
|
|
}
|
|
else
|
|
for (Length+=2;Length>0 && DecPos<MaxDecSize && DecPos<NameSize;Length--,DecPos++)
|
|
NameW[DecPos]=Name[DecPos];
|
|
}
|
|
break;
|
|
}
|
|
Flags<<=2;
|
|
FlagBits-=2;
|
|
}
|
|
NameW[DecPos<MaxDecSize ? DecPos:MaxDecSize-1]=0;
|
|
}
|