mirror of
https://github.com/hashcat/hashcat.git
synced 2024-12-23 23:19:09 +00:00
660 lines
16 KiB
C++
660 lines
16 KiB
C++
#include "rar.hpp"
|
|
#define MBFUNCTIONS
|
|
|
|
#if defined(_UNIX) && defined(MBFUNCTIONS)
|
|
|
|
static bool WideToCharMap(const wchar *Src,char *Dest,size_t DestSize,bool &Success);
|
|
static void CharToWideMap(const char *Src,wchar *Dest,size_t DestSize,bool &Success);
|
|
|
|
// In Unix we map high ASCII characters which cannot be converted to Unicode
|
|
// to 0xE000 - 0xE0FF private use Unicode area.
|
|
static const uint MapAreaStart=0xE000;
|
|
|
|
// Mapped string marker. Initially we used 0xFFFF for this purpose,
|
|
// but it causes MSVC2008 swprintf to fail (it treats 0xFFFF as error marker).
|
|
// While we could workaround it, it is safer to use another character.
|
|
static const uint MappedStringMark=0xFFFE;
|
|
|
|
#endif
|
|
|
|
bool WideToChar(const wchar *Src,char *Dest,size_t DestSize)
|
|
{
|
|
bool RetCode=true;
|
|
*Dest=0; // Set 'Dest' to zero just in case the conversion will fail.
|
|
|
|
#ifdef _WIN_ALL
|
|
if (WideCharToMultiByte(CP_ACP,0,Src,-1,Dest,(int)DestSize,NULL,NULL)==0)
|
|
RetCode=false;
|
|
|
|
// wcstombs is broken in Android NDK r9.
|
|
#elif defined(_APPLE)
|
|
WideToUtf(Src,Dest,DestSize);
|
|
|
|
#elif defined(MBFUNCTIONS)
|
|
if (!WideToCharMap(Src,Dest,DestSize,RetCode))
|
|
{
|
|
mbstate_t ps; // Use thread safe external state based functions.
|
|
memset (&ps, 0, sizeof(ps));
|
|
const wchar *SrcParam=Src; // wcsrtombs can change the pointer.
|
|
|
|
// Some implementations of wcsrtombs can cause memory analyzing tools
|
|
// like valgrind to report uninitialized data access. It happens because
|
|
// internally these implementations call SSE4 based wcslen function,
|
|
// which reads 16 bytes at once including those beyond of trailing 0.
|
|
size_t ResultingSize=wcsrtombs(Dest,&SrcParam,DestSize,&ps);
|
|
|
|
if (ResultingSize==(size_t)-1 && errno==EILSEQ)
|
|
{
|
|
// Aborted on inconvertible character not zero terminating the result.
|
|
// EILSEQ helps to distinguish it from small output buffer abort.
|
|
// We want to convert as much as we can, so we clean the output buffer
|
|
// and repeat conversion.
|
|
memset (&ps, 0, sizeof(ps));
|
|
SrcParam=Src; // wcsrtombs can change the pointer.
|
|
memset(Dest,0,DestSize);
|
|
ResultingSize=wcsrtombs(Dest,&SrcParam,DestSize,&ps);
|
|
}
|
|
|
|
if (ResultingSize==(size_t)-1)
|
|
RetCode=false;
|
|
if (ResultingSize==0 && *Src!=0)
|
|
RetCode=false;
|
|
}
|
|
#else
|
|
for (int I=0;I<DestSize;I++)
|
|
{
|
|
Dest[I]=(char)Src[I];
|
|
if (Src[I]==0)
|
|
break;
|
|
}
|
|
#endif
|
|
if (DestSize>0)
|
|
Dest[DestSize-1]=0;
|
|
|
|
// We tried to return the empty string if conversion is failed,
|
|
// but it does not work well. WideCharToMultiByte returns 'failed' code
|
|
// and partially converted string even if we wanted to convert only a part
|
|
// of string and passed DestSize smaller than required for fully converted
|
|
// string. Such call is the valid behavior in RAR code and we do not expect
|
|
// the empty string in this case.
|
|
|
|
return RetCode;
|
|
}
|
|
|
|
|
|
bool CharToWide(const char *Src,wchar *Dest,size_t DestSize)
|
|
{
|
|
bool RetCode=true;
|
|
*Dest=0; // Set 'Dest' to zero just in case the conversion will fail.
|
|
|
|
#ifdef _WIN_ALL
|
|
if (MultiByteToWideChar(CP_ACP,0,Src,-1,Dest,(int)DestSize)==0)
|
|
RetCode=false;
|
|
|
|
// mbstowcs is broken in Android NDK r9.
|
|
#elif defined(_APPLE)
|
|
UtfToWide(Src,Dest,DestSize);
|
|
|
|
#elif defined(MBFUNCTIONS)
|
|
mbstate_t ps;
|
|
memset (&ps, 0, sizeof(ps));
|
|
const char *SrcParam=Src; // mbsrtowcs can change the pointer.
|
|
size_t ResultingSize=mbsrtowcs(Dest,&SrcParam,DestSize,&ps);
|
|
if (ResultingSize==(size_t)-1)
|
|
RetCode=false;
|
|
if (ResultingSize==0 && *Src!=0)
|
|
RetCode=false;
|
|
|
|
if (RetCode==false && DestSize>1)
|
|
CharToWideMap(Src,Dest,DestSize,RetCode);
|
|
#else
|
|
for (int I=0;I<DestSize;I++)
|
|
{
|
|
Dest[I]=(wchar_t)Src[I];
|
|
if (Src[I]==0)
|
|
break;
|
|
}
|
|
#endif
|
|
if (DestSize>0)
|
|
Dest[DestSize-1]=0;
|
|
|
|
// We tried to return the empty string if conversion is failed,
|
|
// but it does not work well. MultiByteToWideChar returns 'failed' code
|
|
// even if we wanted to convert only a part of string and passed DestSize
|
|
// smaller than required for fully converted string. Such call is the valid
|
|
// behavior in RAR code and we do not expect the empty string in this case.
|
|
|
|
return RetCode;
|
|
}
|
|
|
|
|
|
#if defined(_UNIX) && defined(MBFUNCTIONS)
|
|
// Convert and restore mapped inconvertible Unicode characters.
|
|
// We use it for extended ASCII names in Unix.
|
|
bool WideToCharMap(const wchar *Src,char *Dest,size_t DestSize,bool &Success)
|
|
{
|
|
// String with inconvertible characters mapped to private use Unicode area
|
|
// must have the mark code somewhere.
|
|
if (wcschr(Src,(wchar)MappedStringMark)==NULL)
|
|
return false;
|
|
|
|
// Seems to be that wcrtomb in some memory analyzing libraries
|
|
// can produce uninitilized output while reporting success on garbage input.
|
|
// So we clean the destination to calm analyzers.
|
|
memset(Dest,0,DestSize);
|
|
|
|
Success=true;
|
|
uint SrcPos=0,DestPos=0;
|
|
while (Src[SrcPos]!=0 && DestPos<DestSize-MB_CUR_MAX)
|
|
{
|
|
if (uint(Src[SrcPos])==MappedStringMark)
|
|
{
|
|
SrcPos++;
|
|
continue;
|
|
}
|
|
// For security reasons do not restore low ASCII codes, so mapping cannot
|
|
// be used to hide control codes like path separators.
|
|
if (uint(Src[SrcPos])>=MapAreaStart+0x80 && uint(Src[SrcPos])<MapAreaStart+0x100)
|
|
Dest[DestPos++]=char(uint(Src[SrcPos++])-MapAreaStart);
|
|
else
|
|
{
|
|
mbstate_t ps;
|
|
memset(&ps,0,sizeof(ps));
|
|
if (wcrtomb(Dest+DestPos,Src[SrcPos],&ps)==(size_t)-1)
|
|
{
|
|
Dest[DestPos]='_';
|
|
Success=false;
|
|
}
|
|
SrcPos++;
|
|
memset(&ps,0,sizeof(ps));
|
|
int Length=mbrlen(Dest+DestPos,MB_CUR_MAX,&ps);
|
|
DestPos+=Max(Length,1);
|
|
}
|
|
}
|
|
Dest[Min(DestPos,DestSize-1)]=0;
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
|
|
#if defined(_UNIX) && defined(MBFUNCTIONS)
|
|
// Convert and map inconvertible Unicode characters.
|
|
// We use it for extended ASCII names in Unix.
|
|
void CharToWideMap(const char *Src,wchar *Dest,size_t DestSize,bool &Success)
|
|
{
|
|
// Map inconvertible characters to private use Unicode area 0xE000.
|
|
// Mark such string by placing special non-character code before
|
|
// first inconvertible character.
|
|
Success=false;
|
|
bool MarkAdded=false;
|
|
uint SrcPos=0,DestPos=0;
|
|
while (DestPos<DestSize)
|
|
{
|
|
if (Src[SrcPos]==0)
|
|
{
|
|
Success=true;
|
|
break;
|
|
}
|
|
mbstate_t ps;
|
|
memset(&ps,0,sizeof(ps));
|
|
size_t res=mbrtowc(Dest+DestPos,Src+SrcPos,MB_CUR_MAX,&ps);
|
|
if (res==(size_t)-1 || res==(size_t)-2)
|
|
{
|
|
// For security reasons we do not want to map low ASCII characters,
|
|
// so we do not have additional .. and path separator codes.
|
|
if (byte(Src[SrcPos])>=0x80)
|
|
{
|
|
if (!MarkAdded)
|
|
{
|
|
Dest[DestPos++]=MappedStringMark;
|
|
MarkAdded=true;
|
|
if (DestPos>=DestSize)
|
|
break;
|
|
}
|
|
Dest[DestPos++]=byte(Src[SrcPos++])+MapAreaStart;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
memset(&ps,0,sizeof(ps));
|
|
int Length=mbrlen(Src+SrcPos,MB_CUR_MAX,&ps);
|
|
SrcPos+=Max(Length,1);
|
|
DestPos++;
|
|
}
|
|
}
|
|
Dest[Min(DestPos,DestSize-1)]=0;
|
|
}
|
|
#endif
|
|
|
|
|
|
// SrcSize is in wide characters, not in bytes.
|
|
byte* WideToRaw(const wchar *Src,byte *Dest,size_t SrcSize)
|
|
{
|
|
for (size_t I=0;I<SrcSize;I++,Src++)
|
|
{
|
|
Dest[I*2]=(byte)*Src;
|
|
Dest[I*2+1]=(byte)(*Src>>8);
|
|
if (*Src==0)
|
|
break;
|
|
}
|
|
return Dest;
|
|
}
|
|
|
|
|
|
wchar* RawToWide(const byte *Src,wchar *Dest,size_t DestSize)
|
|
{
|
|
for (size_t I=0;I<DestSize;I++)
|
|
if ((Dest[I]=Src[I*2]+(Src[I*2+1]<<8))==0)
|
|
break;
|
|
return Dest;
|
|
}
|
|
|
|
|
|
void WideToUtf(const wchar *Src,char *Dest,size_t DestSize)
|
|
{
|
|
long dsize=(long)DestSize;
|
|
dsize--;
|
|
while (*Src!=0 && --dsize>=0)
|
|
{
|
|
uint c=*(Src++);
|
|
if (c<0x80)
|
|
*(Dest++)=c;
|
|
else
|
|
if (c<0x800 && --dsize>=0)
|
|
{
|
|
*(Dest++)=(0xc0|(c>>6));
|
|
*(Dest++)=(0x80|(c&0x3f));
|
|
}
|
|
else
|
|
{
|
|
if (c>=0xd800 && c<=0xdbff && *Src>=0xdc00 && *Src<=0xdfff) // Surrogate pair.
|
|
{
|
|
c=((c-0xd800)<<10)+(*Src-0xdc00)+0x10000;
|
|
Src++;
|
|
}
|
|
if (c<0x10000 && (dsize-=2)>=0)
|
|
{
|
|
*(Dest++)=(0xe0|(c>>12));
|
|
*(Dest++)=(0x80|((c>>6)&0x3f));
|
|
*(Dest++)=(0x80|(c&0x3f));
|
|
}
|
|
else
|
|
if (c < 0x200000 && (dsize-=3)>=0)
|
|
{
|
|
*(Dest++)=(0xf0|(c>>18));
|
|
*(Dest++)=(0x80|((c>>12)&0x3f));
|
|
*(Dest++)=(0x80|((c>>6)&0x3f));
|
|
*(Dest++)=(0x80|(c&0x3f));
|
|
}
|
|
}
|
|
}
|
|
*Dest=0;
|
|
}
|
|
|
|
|
|
size_t WideToUtfSize(const wchar *Src)
|
|
{
|
|
size_t Size=0;
|
|
for (;*Src!=0;Src++)
|
|
if (*Src<0x80)
|
|
Size++;
|
|
else
|
|
if (*Src<0x800)
|
|
Size+=2;
|
|
else
|
|
if ((uint)*Src<0x10000) //(uint) to avoid Clang/win "always true" warning for 16-bit wchar_t.
|
|
{
|
|
if (Src[0]>=0xd800 && Src[0]<=0xdbff && Src[1]>=0xdc00 && Src[1]<=0xdfff)
|
|
{
|
|
Size+=4; // 4 output bytes for Unicode surrogate pair.
|
|
Src++;
|
|
}
|
|
else
|
|
Size+=3;
|
|
}
|
|
else
|
|
if ((uint)*Src<0x200000) //(uint) to avoid Clang/win "always true" warning for 16-bit wchar_t.
|
|
Size+=4;
|
|
return Size+1; // Include terminating zero.
|
|
}
|
|
|
|
|
|
bool UtfToWide(const char *Src,wchar *Dest,size_t DestSize)
|
|
{
|
|
bool Success=true;
|
|
long dsize=(long)DestSize;
|
|
dsize--;
|
|
while (*Src!=0)
|
|
{
|
|
uint c=byte(*(Src++)),d;
|
|
if (c<0x80)
|
|
d=c;
|
|
else
|
|
if ((c>>5)==6)
|
|
{
|
|
if ((*Src&0xc0)!=0x80)
|
|
{
|
|
Success=false;
|
|
break;
|
|
}
|
|
d=((c&0x1f)<<6)|(*Src&0x3f);
|
|
Src++;
|
|
}
|
|
else
|
|
if ((c>>4)==14)
|
|
{
|
|
if ((Src[0]&0xc0)!=0x80 || (Src[1]&0xc0)!=0x80)
|
|
{
|
|
Success=false;
|
|
break;
|
|
}
|
|
d=((c&0xf)<<12)|((Src[0]&0x3f)<<6)|(Src[1]&0x3f);
|
|
Src+=2;
|
|
}
|
|
else
|
|
if ((c>>3)==30)
|
|
{
|
|
if ((Src[0]&0xc0)!=0x80 || (Src[1]&0xc0)!=0x80 || (Src[2]&0xc0)!=0x80)
|
|
{
|
|
Success=false;
|
|
break;
|
|
}
|
|
d=((c&7)<<18)|((Src[0]&0x3f)<<12)|((Src[1]&0x3f)<<6)|(Src[2]&0x3f);
|
|
Src+=3;
|
|
}
|
|
else
|
|
{
|
|
Success=false;
|
|
break;
|
|
}
|
|
if (--dsize<0)
|
|
break;
|
|
if (d>0xffff)
|
|
{
|
|
if (--dsize<0)
|
|
break;
|
|
if (d>0x10ffff) // UTF-8 must end at 0x10ffff according to RFC 3629.
|
|
{
|
|
Success=false;
|
|
continue;
|
|
}
|
|
if (sizeof(*Dest)==2) // Use the surrogate pair.
|
|
{
|
|
*(Dest++)=((d-0x10000)>>10)+0xd800;
|
|
*(Dest++)=(d&0x3ff)+0xdc00;
|
|
}
|
|
else
|
|
*(Dest++)=d;
|
|
}
|
|
else
|
|
*(Dest++)=d;
|
|
}
|
|
*Dest=0;
|
|
return Success;
|
|
}
|
|
|
|
|
|
// For zero terminated strings.
|
|
bool IsTextUtf8(const byte *Src)
|
|
{
|
|
return IsTextUtf8(Src,strlen((const char *)Src));
|
|
}
|
|
|
|
|
|
// Source data can be both with and without UTF-8 BOM.
|
|
bool IsTextUtf8(const byte *Src,size_t SrcSize)
|
|
{
|
|
while (SrcSize-- > 0)
|
|
{
|
|
byte C=*(Src++);
|
|
int HighOne=0; // Number of leftmost '1' bits.
|
|
for (byte Mask=0x80;Mask!=0 && (C & Mask)!=0;Mask>>=1)
|
|
HighOne++;
|
|
if (HighOne==1 || HighOne>6)
|
|
return false;
|
|
while (--HighOne > 0)
|
|
if (SrcSize-- <= 0 || (*(Src++) & 0xc0)!=0x80)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
int wcsicomp(const wchar *s1,const wchar *s2)
|
|
{
|
|
#ifdef _WIN_ALL
|
|
return CompareStringW(LOCALE_USER_DEFAULT,NORM_IGNORECASE|SORT_STRINGSORT,s1,-1,s2,-1)-2;
|
|
#else
|
|
while (true)
|
|
{
|
|
wchar u1 = towupper(*s1);
|
|
wchar u2 = towupper(*s2);
|
|
if (u1 != u2)
|
|
return u1 < u2 ? -1 : 1;
|
|
if (*s1==0)
|
|
break;
|
|
s1++;
|
|
s2++;
|
|
}
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
|
|
int wcsnicomp(const wchar *s1,const wchar *s2,size_t n)
|
|
{
|
|
#ifdef _WIN_ALL
|
|
// If we specify 'n' exceeding the actual string length, CompareString goes
|
|
// beyond the trailing zero and compares garbage. So we need to limit 'n'
|
|
// to real string length.
|
|
size_t l1=Min(wcslen(s1)+1,n);
|
|
size_t l2=Min(wcslen(s2)+1,n);
|
|
return CompareStringW(LOCALE_USER_DEFAULT,NORM_IGNORECASE|SORT_STRINGSORT,s1,(int)l1,s2,(int)l2)-2;
|
|
#else
|
|
if (n==0)
|
|
return 0;
|
|
while (true)
|
|
{
|
|
wchar u1 = towupper(*s1);
|
|
wchar u2 = towupper(*s2);
|
|
if (u1 != u2)
|
|
return u1 < u2 ? -1 : 1;
|
|
if (*s1==0 || --n==0)
|
|
break;
|
|
s1++;
|
|
s2++;
|
|
}
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
|
|
// Case insensitive wcsstr().
|
|
const wchar_t* wcscasestr(const wchar_t *str, const wchar_t *search)
|
|
{
|
|
for (size_t i=0;str[i]!=0;i++)
|
|
for (size_t j=0;;j++)
|
|
{
|
|
if (search[j]==0)
|
|
return str+i;
|
|
if (tolowerw(str[i+j])!=tolowerw(search[j]))
|
|
break;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
#ifndef SFX_MODULE
|
|
wchar* wcslower(wchar *s)
|
|
{
|
|
#ifdef _WIN_ALL
|
|
// _wcslwr requires setlocale and we do not want to depend on setlocale
|
|
// in Windows. Also CharLower involves less overhead.
|
|
CharLower(s);
|
|
#else
|
|
for (wchar *c=s;*c!=0;c++)
|
|
*c=towlower(*c);
|
|
#endif
|
|
return s;
|
|
}
|
|
#endif
|
|
|
|
|
|
#ifndef SFX_MODULE
|
|
wchar* wcsupper(wchar *s)
|
|
{
|
|
#ifdef _WIN_ALL
|
|
// _wcsupr requires setlocale and we do not want to depend on setlocale
|
|
// in Windows. Also CharUpper involves less overhead.
|
|
CharUpper(s);
|
|
#else
|
|
for (wchar *c=s;*c!=0;c++)
|
|
*c=towupper(*c);
|
|
#endif
|
|
return s;
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
|
|
int toupperw(int ch)
|
|
{
|
|
#if defined(_WIN_ALL)
|
|
// CharUpper is more reliable than towupper in Windows, which seems to be
|
|
// C locale dependent even in Unicode version. For example, towupper failed
|
|
// to convert lowercase Russian characters. Use 0xffff mask to prevent crash
|
|
// if value larger than 0xffff is passed to this function.
|
|
return (int)(INT_PTR)CharUpper((wchar *)(INT_PTR)(ch&0xffff));
|
|
#else
|
|
return towupper(ch);
|
|
#endif
|
|
}
|
|
|
|
|
|
int tolowerw(int ch)
|
|
{
|
|
#if defined(_WIN_ALL)
|
|
// CharLower is more reliable than towlower in Windows.
|
|
// See comment for towupper above. Use 0xffff mask to prevent crash
|
|
// if value larger than 0xffff is passed to this function.
|
|
return (int)(INT_PTR)CharLower((wchar *)(INT_PTR)(ch&0xffff));
|
|
#else
|
|
return towlower(ch);
|
|
#endif
|
|
}
|
|
|
|
|
|
int atoiw(const wchar *s)
|
|
{
|
|
return (int)atoilw(s);
|
|
}
|
|
|
|
|
|
int64 atoilw(const wchar *s)
|
|
{
|
|
bool sign=false;
|
|
if (*s=='-') // We do use signed integers here, for example, in GUI SFX.
|
|
{
|
|
s++;
|
|
sign=true;
|
|
}
|
|
// Use unsigned type here, since long string can overflow the variable
|
|
// and signed integer overflow is undefined behavior in C++.
|
|
uint64 n=0;
|
|
while (*s>='0' && *s<='9')
|
|
{
|
|
n=n*10+(*s-'0');
|
|
s++;
|
|
}
|
|
// Check int64(n)>=0 to avoid the signed overflow with undefined behavior
|
|
// when negating 0x8000000000000000.
|
|
return sign && int64(n)>=0 ? -int64(n) : int64(n);
|
|
}
|
|
|
|
|
|
#ifdef DBCS_SUPPORTED
|
|
SupportDBCS gdbcs;
|
|
|
|
SupportDBCS::SupportDBCS()
|
|
{
|
|
Init();
|
|
}
|
|
|
|
|
|
void SupportDBCS::Init()
|
|
{
|
|
CPINFO CPInfo;
|
|
GetCPInfo(CP_ACP,&CPInfo);
|
|
DBCSMode=CPInfo.MaxCharSize > 1;
|
|
for (uint I=0;I<ASIZE(IsLeadByte);I++)
|
|
IsLeadByte[I]=IsDBCSLeadByte(I)!=0;
|
|
}
|
|
|
|
|
|
char* SupportDBCS::charnext(const char *s)
|
|
{
|
|
// Zero cannot be the trail byte. So if next byte after the lead byte
|
|
// is 0, the string is corrupt and we'll better return the pointer to 0,
|
|
// to break string processing loops.
|
|
return (char *)(IsLeadByte[(byte)*s] && s[1]!=0 ? s+2:s+1);
|
|
}
|
|
|
|
|
|
size_t SupportDBCS::strlend(const char *s)
|
|
{
|
|
size_t Length=0;
|
|
while (*s!=0)
|
|
{
|
|
if (IsLeadByte[(byte)*s])
|
|
s+=2;
|
|
else
|
|
s++;
|
|
Length++;
|
|
}
|
|
return(Length);
|
|
}
|
|
|
|
|
|
char* SupportDBCS::strchrd(const char *s, int c)
|
|
{
|
|
while (*s!=0)
|
|
if (IsLeadByte[(byte)*s])
|
|
s+=2;
|
|
else
|
|
if (*s==c)
|
|
return((char *)s);
|
|
else
|
|
s++;
|
|
return(NULL);
|
|
}
|
|
|
|
|
|
void SupportDBCS::copychrd(char *dest,const char *src)
|
|
{
|
|
dest[0]=src[0];
|
|
if (IsLeadByte[(byte)src[0]])
|
|
dest[1]=src[1];
|
|
}
|
|
|
|
|
|
char* SupportDBCS::strrchrd(const char *s, int c)
|
|
{
|
|
const char *found=NULL;
|
|
while (*s!=0)
|
|
if (IsLeadByte[(byte)*s])
|
|
s+=2;
|
|
else
|
|
{
|
|
if (*s==c)
|
|
found=s;
|
|
s++;
|
|
}
|
|
return((char *)found);
|
|
}
|
|
#endif
|
|
|
|
|