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QuietUnrar/libunrar/filefn.cpp

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#include "rar.hpp"
MKDIR_CODE MakeDir(const char *Name,const wchar *NameW,bool SetAttr,uint Attr)
{
#ifdef _WIN_32
int Success;
if (WinNT() && NameW!=NULL && *NameW!=0)
Success=CreateDirectoryW(NameW,NULL);
else
Success=CreateDirectory(Name,NULL);
if (Success)
{
if (SetAttr)
SetFileAttr(Name,NameW,Attr);
return(MKDIR_SUCCESS);
}
int ErrCode=GetLastError();
if (ErrCode==ERROR_FILE_NOT_FOUND || ErrCode==ERROR_PATH_NOT_FOUND)
return(MKDIR_BADPATH);
return(MKDIR_ERROR);
#endif
#ifdef _EMX
#ifdef _DJGPP
if (mkdir(Name,(Attr & FA_RDONLY) ? 0:S_IWUSR)==0)
#else
if (__mkdir(Name)==0)
#endif
{
if (SetAttr)
SetFileAttr(Name,NameW,Attr);
return(MKDIR_SUCCESS);
}
return(errno==ENOENT ? MKDIR_BADPATH:MKDIR_ERROR);
#endif
#ifdef _UNIX
mode_t uattr=SetAttr ? (mode_t)Attr:0777;
int ErrCode=Name==NULL ? -1:mkdir(Name,uattr);
if (ErrCode==-1)
return(errno==ENOENT ? MKDIR_BADPATH:MKDIR_ERROR);
return(MKDIR_SUCCESS);
#endif
}
bool CreatePath(const char *Path,const wchar *PathW,bool SkipLastName)
{
#if defined(_WIN_32) || defined(_EMX)
uint DirAttr=0;
#else
uint DirAttr=0777;
#endif
#ifdef UNICODE_SUPPORTED
bool Wide=PathW!=NULL && *PathW!=0 && UnicodeEnabled();
#else
bool Wide=false;
#endif
bool IgnoreAscii=false;
bool Success=true;
const char *s=Path;
for (int PosW=0;;PosW++)
{
if (s==NULL || s-Path>=NM || *s==0)
IgnoreAscii=true;
if (Wide && (PosW>=NM || PathW[PosW]==0) || !Wide && IgnoreAscii)
break;
if (Wide && PathW[PosW]==CPATHDIVIDER || !Wide && *s==CPATHDIVIDER)
{
wchar *DirPtrW=NULL,DirNameW[NM];
if (Wide)
{
strncpyw(DirNameW,PathW,PosW);
DirNameW[PosW]=0;
DirPtrW=DirNameW;
}
char DirName[NM];
if (IgnoreAscii)
WideToChar(DirPtrW,DirName);
else
{
#ifndef DBCS_SUPPORTED
if (*s!=CPATHDIVIDER)
for (const char *n=s;*n!=0 && n-Path<NM;n++)
if (*n==CPATHDIVIDER)
{
s=n;
break;
}
#endif
strncpy(DirName,Path,s-Path);
DirName[s-Path]=0;
}
if (MakeDir(DirName,DirPtrW,true,DirAttr)==MKDIR_SUCCESS)
{
#ifndef GUI
mprintf(St(MCreatDir),DirName);
mprintf(" %s",St(MOk));
#endif
}
else
Success=false;
}
if (!IgnoreAscii)
s=charnext(s);
}
if (!SkipLastName && !IsPathDiv(*PointToLastChar(Path)))
if (MakeDir(Path,PathW,true,DirAttr)!=MKDIR_SUCCESS)
Success=false;
return(Success);
}
void SetDirTime(const char *Name,const wchar *NameW,RarTime *ftm,RarTime *ftc,RarTime *fta)
{
#ifdef _WIN_32
if (!WinNT())
return;
bool sm=ftm!=NULL && ftm->IsSet();
bool sc=ftc!=NULL && ftc->IsSet();
bool sa=fta!=NULL && fta->IsSet();
unsigned int DirAttr=GetFileAttr(Name,NameW);
bool ResetAttr=(DirAttr!=0xffffffff && (DirAttr & FA_RDONLY)!=0);
if (ResetAttr)
SetFileAttr(Name,NameW,0);
wchar DirNameW[NM];
GetWideName(Name,NameW,DirNameW);
HANDLE hFile=CreateFileW(DirNameW,GENERIC_WRITE,FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL,OPEN_EXISTING,FILE_FLAG_BACKUP_SEMANTICS,NULL);
if (hFile==INVALID_HANDLE_VALUE)
return;
FILETIME fm,fc,fa;
if (sm)
ftm->GetWin32(&fm);
if (sc)
ftc->GetWin32(&fc);
if (sa)
fta->GetWin32(&fa);
SetFileTime(hFile,sc ? &fc:NULL,sa ? &fa:NULL,sm ? &fm:NULL);
CloseHandle(hFile);
if (ResetAttr)
SetFileAttr(Name,NameW,DirAttr);
#endif
#if defined(_UNIX) || defined(_EMX)
File::SetCloseFileTimeByName(Name,ftm,fta);
#endif
}
bool IsRemovable(const char *Name)
{
#ifdef _WIN_32
char Root[NM];
GetPathRoot(Name,Root);
int Type=GetDriveType(*Root ? Root:NULL);
return(Type==DRIVE_REMOVABLE || Type==DRIVE_CDROM);
#elif defined(_EMX)
char Drive=etoupper(Name[0]);
return((Drive=='A' || Drive=='B') && Name[1]==':');
#else
return(false);
#endif
}
#ifndef SFX_MODULE
int64 GetFreeDisk(const char *Name)
{
#ifdef _WIN_32
char Root[NM];
GetPathRoot(Name,Root);
typedef BOOL (WINAPI *GETDISKFREESPACEEX)(
LPCTSTR,PULARGE_INTEGER,PULARGE_INTEGER,PULARGE_INTEGER
);
static GETDISKFREESPACEEX pGetDiskFreeSpaceEx=NULL;
if (pGetDiskFreeSpaceEx==NULL)
{
HMODULE hKernel=GetModuleHandle("kernel32.dll");
if (hKernel!=NULL)
pGetDiskFreeSpaceEx=(GETDISKFREESPACEEX)GetProcAddress(hKernel,"GetDiskFreeSpaceExA");
}
if (pGetDiskFreeSpaceEx!=NULL)
{
GetFilePath(Name,Root,ASIZE(Root));
ULARGE_INTEGER uiTotalSize,uiTotalFree,uiUserFree;
uiUserFree.u.LowPart=uiUserFree.u.HighPart=0;
if (pGetDiskFreeSpaceEx(*Root ? Root:NULL,&uiUserFree,&uiTotalSize,&uiTotalFree) &&
uiUserFree.u.HighPart<=uiTotalFree.u.HighPart)
return(INT32TO64(uiUserFree.u.HighPart,uiUserFree.u.LowPart));
}
// We are here if we failed to load GetDiskFreeSpaceExA.
DWORD SectorsPerCluster,BytesPerSector,FreeClusters,TotalClusters;
if (!GetDiskFreeSpace(*Root ? Root:NULL,&SectorsPerCluster,&BytesPerSector,&FreeClusters,&TotalClusters))
return(1457664);
int64 FreeSize=SectorsPerCluster*BytesPerSector;
FreeSize=FreeSize*FreeClusters;
return(FreeSize);
#elif defined(_BEOS)
char Root[NM];
GetFilePath(Name,Root,ASIZE(Root));
dev_t Dev=dev_for_path(*Root ? Root:".");
if (Dev<0)
return(1457664);
fs_info Info;
if (fs_stat_dev(Dev,&Info)!=0)
return(1457664);
int64 FreeSize=Info.block_size;
FreeSize=FreeSize*Info.free_blocks;
return(FreeSize);
#elif defined(_UNIX)
return(1457664);
#elif defined(_EMX)
int Drive=IsDiskLetter(Name) ? etoupper(Name[0])-'A'+1:0;
#ifndef _DJGPP
if (_osmode == OS2_MODE)
{
FSALLOCATE fsa;
if (DosQueryFSInfo(Drive,1,&fsa,sizeof(fsa))!=0)
return(1457664);
int64 FreeSize=fsa.cSectorUnit*fsa.cbSector;
FreeSize=FreeSize*fsa.cUnitAvail;
return(FreeSize);
}
else
#endif
{
union REGS regs,outregs;
memset(&regs,0,sizeof(regs));
regs.h.ah=0x36;
regs.h.dl=Drive;
#ifdef _DJGPP
int86 (0x21,&regs,&outregs);
#else
_int86 (0x21,&regs,&outregs);
#endif
if (outregs.x.ax==0xffff)
return(1457664);
int64 FreeSize=outregs.x.ax*outregs.x.cx;
FreeSize=FreeSize*outregs.x.bx;
return(FreeSize);
}
#else
#define DISABLEAUTODETECT
return(1457664);
#endif
}
#endif
bool FileExist(const char *Name,const wchar *NameW)
{
#ifdef _WIN_32
if (WinNT() && NameW!=NULL && *NameW!=0)
return(GetFileAttributesW(NameW)!=0xffffffff);
else
return(GetFileAttributes(Name)!=0xffffffff);
#elif defined(ENABLE_ACCESS)
return(access(Name,0)==0);
#else
struct FindData FD;
return(FindFile::FastFind(Name,NameW,&FD));
#endif
}
bool WildFileExist(const char *Name,const wchar *NameW)
{
if (IsWildcard(Name,NameW))
{
FindFile Find;
Find.SetMask(Name);
Find.SetMaskW(NameW);
struct FindData fd;
return(Find.Next(&fd));
}
return(FileExist(Name,NameW));
}
bool IsDir(uint Attr)
{
#if defined (_WIN_32) || defined(_EMX)
return(Attr!=0xffffffff && (Attr & 0x10)!=0);
#endif
#if defined(_UNIX)
return((Attr & 0xF000)==0x4000);
#endif
}
bool IsUnreadable(uint Attr)
{
#if defined(_UNIX) && defined(S_ISFIFO) && defined(S_ISSOCK) && defined(S_ISCHR)
return(S_ISFIFO(Attr) || S_ISSOCK(Attr) || S_ISCHR(Attr));
#endif
return(false);
}
bool IsLabel(uint Attr)
{
#if defined (_WIN_32) || defined(_EMX)
return((Attr & 8)!=0);
#else
return(false);
#endif
}
bool IsLink(uint Attr)
{
#ifdef _UNIX
return((Attr & 0xF000)==0xA000);
#else
return(false);
#endif
}
bool IsDeleteAllowed(uint FileAttr)
{
#if defined(_WIN_32) || defined(_EMX)
return((FileAttr & (FA_RDONLY|FA_SYSTEM|FA_HIDDEN))==0);
#else
return((FileAttr & (S_IRUSR|S_IWUSR))==(S_IRUSR|S_IWUSR));
#endif
}
void PrepareToDelete(const char *Name,const wchar *NameW)
{
#if defined(_WIN_32) || defined(_EMX)
SetFileAttr(Name,NameW,0);
#endif
#ifdef _UNIX
chmod(Name,S_IRUSR|S_IWUSR|S_IXUSR);
#endif
}
uint GetFileAttr(const char *Name,const wchar *NameW)
{
#ifdef _WIN_32
if (WinNT() && NameW!=NULL && *NameW!=0)
return(GetFileAttributesW(NameW));
else
return(GetFileAttributes(Name));
#elif defined(_DJGPP)
return(_chmod(Name,0));
#else
struct stat st;
if (stat(Name,&st)!=0)
return(0);
#ifdef _EMX
return(st.st_attr);
#else
return(st.st_mode);
#endif
#endif
}
bool SetFileAttr(const char *Name,const wchar *NameW,uint Attr)
{
bool Success;
#ifdef _WIN_32
if (WinNT() && NameW!=NULL && *NameW!=0)
Success=SetFileAttributesW(NameW,Attr)!=0;
else
Success=SetFileAttributes(Name,Attr)!=0;
#elif defined(_DJGPP)
Success=_chmod(Name,1,Attr)!=-1;
#elif defined(_EMX)
Success=__chmod(Name,1,Attr)!=-1;
#elif defined(_UNIX)
Success=chmod(Name,(mode_t)Attr)==0;
#else
Success=false;
#endif
return(Success);
}
void ConvertNameToFull(const char *Src,char *Dest)
{
#ifdef _WIN_32
#ifndef _WIN_CE
char FullName[NM],*NamePtr;
if (GetFullPathName(Src,sizeof(FullName),FullName,&NamePtr))
strcpy(Dest,FullName);
else
#endif
if (Src!=Dest)
strcpy(Dest,Src);
#else
char FullName[NM];
if (IsPathDiv(*Src) || IsDiskLetter(Src))
strcpy(FullName,Src);
else
{
if (getcwd(FullName,sizeof(FullName))==NULL)
*FullName=0;
else
AddEndSlash(FullName);
strcat(FullName,Src);
}
strcpy(Dest,FullName);
#endif
}
#ifndef SFX_MODULE
void ConvertNameToFull(const wchar *Src,wchar *Dest)
{
if (Src==NULL || *Src==0)
{
*Dest=0;
return;
}
#ifdef _WIN_32
#ifndef _WIN_CE
if (WinNT())
#endif
{
#ifndef _WIN_CE
wchar FullName[NM],*NamePtr;
if (GetFullPathNameW(Src,sizeof(FullName)/sizeof(FullName[0]),FullName,&NamePtr))
strcpyw(Dest,FullName);
else
#endif
if (Src!=Dest)
strcpyw(Dest,Src);
}
#ifndef _WIN_CE
else
{
char AnsiName[NM];
WideToChar(Src,AnsiName);
ConvertNameToFull(AnsiName,AnsiName);
CharToWide(AnsiName,Dest);
}
#endif
#else
char AnsiName[NM];
WideToChar(Src,AnsiName);
ConvertNameToFull(AnsiName,AnsiName);
CharToWide(AnsiName,Dest);
#endif
}
#endif
#ifndef SFX_MODULE
char *MkTemp(char *Name)
{
size_t Length=strlen(Name);
if (Length<=6)
return(NULL);
int Random=clock();
for (int Attempt=0;;Attempt++)
{
sprintf(Name+Length-6,"%06u",Random+Attempt);
Name[Length-4]='.';
if (!FileExist(Name))
break;
if (Attempt==1000)
return(NULL);
}
return(Name);
}
#endif
#ifndef SFX_MODULE
uint CalcFileCRC(File *SrcFile,int64 Size,CALCCRC_SHOWMODE ShowMode)
{
SaveFilePos SavePos(*SrcFile);
const size_t BufSize=0x10000;
Array<byte> Data(BufSize);
int64 BlockCount=0;
uint DataCRC=0xffffffff;
#if !defined(SILENT) && !defined(_WIN_CE)
int64 FileLength=SrcFile->FileLength();
if (ShowMode!=CALCCRC_SHOWNONE)
{
mprintf(St(MCalcCRC));
mprintf(" ");
}
#endif
SrcFile->Seek(0,SEEK_SET);
while (true)
{
size_t SizeToRead;
if (Size==INT64NDF) // If we process the entire file.
SizeToRead=BufSize; // Then always attempt to read the entire buffer.
else
SizeToRead=(size_t)Min((int64)BufSize,Size);
int ReadSize=SrcFile->Read(&Data[0],SizeToRead);
if (ReadSize==0)
break;
++BlockCount;
if ((BlockCount & 15)==0)
{
#if !defined(SILENT) && !defined(_WIN_CE)
if (ShowMode==CALCCRC_SHOWALL)
mprintf("\b\b\b\b%3d%%",ToPercent(BlockCount*int64(BufSize),FileLength));
#endif
Wait();
}
DataCRC=CRC(DataCRC,&Data[0],ReadSize);
if (Size!=INT64NDF)
Size-=ReadSize;
}
#if !defined(SILENT) && !defined(_WIN_CE)
if (ShowMode==CALCCRC_SHOWALL)
mprintf("\b\b\b\b ");
#endif
return(DataCRC^0xffffffff);
}
#endif
bool RenameFile(const char *SrcName,const wchar *SrcNameW,const char *DestName,const wchar *DestNameW)
{
return(rename(SrcName,DestName)==0);
}
bool DelFile(const char *Name)
{
return(DelFile(Name,NULL));
}
bool DelFile(const char *Name,const wchar *NameW)
{
return(remove(Name)==0);
}
#if defined(_WIN_32) && !defined(_WIN_CE) && !defined(SFX_MODULE)
bool SetFileCompression(char *Name,wchar *NameW,bool State)
{
wchar FileNameW[NM];
GetWideName(Name,NameW,FileNameW);
HANDLE hFile=CreateFileW(FileNameW,FILE_READ_DATA|FILE_WRITE_DATA,
FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS|FILE_FLAG_SEQUENTIAL_SCAN,NULL);
if (hFile==INVALID_HANDLE_VALUE)
return(false);
SHORT NewState=State ? COMPRESSION_FORMAT_DEFAULT:COMPRESSION_FORMAT_NONE;
DWORD Result;
int RetCode=DeviceIoControl(hFile,FSCTL_SET_COMPRESSION,&NewState,
sizeof(NewState),NULL,0,&Result,NULL);
CloseHandle(hFile);
return(RetCode!=0);
}
#endif
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