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drive_path = path + strlen(DRIVE_GetRoot(drive));
while ((*drive_path == '/') || (*drive_path == '\\')) drive_path++;
drive_root = !*drive_path;
dprintf_dosfs(stddeb, "DOSFS_FindNext: drive_root = %d\n", drive_root);
strcat( buffer, "/" );
p = buffer + strlen(buffer);
attr |= FA_UNUSED | FA_ARCHIVE | FA_RDONLY;
while (DOSFS_ReadDir( dir, &long_name, &short_name ))
/* Don't return '.' and '..' in the root of the drive */
if (drive_root && (long_name[0] == '.') &&
(!long_name[1] || ((long_name[1] == '.') && !long_name[2])))
continue;
/* Check the long mask */
if (long_mask)
{
flags & DRIVE_CASE_SENSITIVE )) continue;
}
/* Check the short mask */
if (short_mask)
{
{
DOSFS_Hash( long_name, dos_name, TRUE,
!(flags & DRIVE_CASE_SENSITIVE) );
short_name = dos_name;
}
if (!DOSFS_MatchShort( short_mask, short_name )) continue;
lstrcpyn32A( p, long_name, sizeof(buffer) - (int)(p - buffer) );
if (!FILE_Stat( buffer, &info ))
{
fprintf( stderr, "DOSFS_FindNext: can't stat %s\n", buffer );
continue;
}
/* We now have a matching entry; fill the result and return */
entry->dwFileAttributes = info.dwFileAttributes;
entry->ftCreationTime = info.ftCreationTime;
entry->ftLastAccessTime = info.ftLastAccessTime;
entry->ftLastWriteTime = info.ftLastWriteTime;
entry->nFileSizeHigh = info.nFileSizeHigh;
entry->nFileSizeLow = info.nFileSizeLow;
if (short_name)
DOSFS_ToDosDTAFormat( short_name, entry->cAlternateFileName );
else
DOSFS_Hash( long_name, entry->cAlternateFileName, FALSE,
!(flags & DRIVE_CASE_SENSITIVE) );
lstrcpyn32A( entry->cFileName, long_name, sizeof(entry->cFileName) );
if (!(flags & DRIVE_CASE_PRESERVING)) CharLower32A( entry->cFileName );
dprintf_dosfs( stddeb, "DOSFS_FindNext: returning %s (%s) %02lx %ld\n",
entry->cFileName, entry->cAlternateFileName,
entry->dwFileAttributes, entry->nFileSizeLow );
cur_pos += count;
p[-1] = '\0'; /* Remove trailing slash in buffer */
/*************************************************************************
* FindFirstFile16 (KERNEL.413)
*/
HANDLE16 WINAPI FindFirstFile16( LPCSTR path, WIN32_FIND_DATA32A *data )
HGLOBAL16 handle;
FIND_FIRST_INFO *info;
if (!path) return 0;
return INVALID_HANDLE_VALUE16;
if (!(handle = GlobalAlloc16( GMEM_MOVEABLE, sizeof(FIND_FIRST_INFO) )))
return INVALID_HANDLE_VALUE16;
info = (FIND_FIRST_INFO *)GlobalLock16( handle );
info->path = HEAP_strdupA( SystemHeap, 0, full_name.long_name );
info->mask = strrchr( info->path, '/' );
*(info->mask++) = '\0';
if (path[0] && (path[1] == ':')) info->drive = toupper(*path) - 'A';
else info->drive = DRIVE_GetCurrentDrive();
info->skip = 0;
GlobalUnlock16( handle );
if (!FindNextFile16( handle, data ))
{
FindClose16( handle );
DOS_ERROR( ER_NoMoreFiles, EC_MediaError, SA_Abort, EL_Disk );
return INVALID_HANDLE_VALUE16;
}
return handle;
}
/*************************************************************************
* FindFirstFile32A (KERNEL32.123)
*/
HANDLE32 WINAPI FindFirstFile32A( LPCSTR path, WIN32_FIND_DATA32A *data )
{
HANDLE32 handle = FindFirstFile16( path, data );
if (handle == INVALID_HANDLE_VALUE16) return INVALID_HANDLE_VALUE32;
return handle;
}
/*************************************************************************
* FindFirstFile32W (KERNEL32.124)
*/
HANDLE32 WINAPI FindFirstFile32W( LPCWSTR path, WIN32_FIND_DATA32W *data )
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{
WIN32_FIND_DATA32A dataA;
LPSTR pathA = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
HANDLE32 handle = FindFirstFile32A( pathA, &dataA );
HeapFree( GetProcessHeap(), 0, pathA );
if (handle != INVALID_HANDLE_VALUE32)
{
data->dwFileAttributes = dataA.dwFileAttributes;
data->ftCreationTime = dataA.ftCreationTime;
data->ftLastAccessTime = dataA.ftLastAccessTime;
data->ftLastWriteTime = dataA.ftLastWriteTime;
data->nFileSizeHigh = dataA.nFileSizeHigh;
data->nFileSizeLow = dataA.nFileSizeLow;
lstrcpyAtoW( data->cFileName, dataA.cFileName );
lstrcpyAtoW( data->cAlternateFileName, dataA.cAlternateFileName );
}
return handle;
}
/*************************************************************************
* FindNextFile16 (KERNEL.414)
*/
BOOL16 WINAPI FindNextFile16( HANDLE16 handle, WIN32_FIND_DATA32A *data )
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{
FIND_FIRST_INFO *info;
int count;
if (!(info = (FIND_FIRST_INFO *)GlobalLock16( handle )))
{
DOS_ERROR( ER_InvalidHandle, EC_ProgramError, SA_Abort, EL_Disk );
return FALSE;
}
GlobalUnlock16( handle );
if (!info->path)
{
DOS_ERROR( ER_NoMoreFiles, EC_MediaError, SA_Abort, EL_Disk );
return FALSE;
}
if (!(count = DOSFS_FindNext( info->path, NULL, info->mask, info->drive,
0xff, info->skip, data )))
{
HeapFree( SystemHeap, 0, info->path );
info->path = info->mask = NULL;
DOS_ERROR( ER_NoMoreFiles, EC_MediaError, SA_Abort, EL_Disk );
return FALSE;
}
info->skip += count;
return TRUE;
}
/*************************************************************************
* FindNextFile32A (KERNEL32.126)
*/
BOOL32 WINAPI FindNextFile32A( HANDLE32 handle, WIN32_FIND_DATA32A *data )
{
return FindNextFile16( handle, data );
}
/*************************************************************************
* FindNextFile32W (KERNEL32.127)
*/
BOOL32 WINAPI FindNextFile32W( HANDLE32 handle, WIN32_FIND_DATA32W *data )
{
WIN32_FIND_DATA32A dataA;
if (!FindNextFile32A( handle, &dataA )) return FALSE;
data->dwFileAttributes = dataA.dwFileAttributes;
data->ftCreationTime = dataA.ftCreationTime;
data->ftLastAccessTime = dataA.ftLastAccessTime;
data->ftLastWriteTime = dataA.ftLastWriteTime;
data->nFileSizeHigh = dataA.nFileSizeHigh;
data->nFileSizeLow = dataA.nFileSizeLow;
lstrcpyAtoW( data->cFileName, dataA.cFileName );
lstrcpyAtoW( data->cAlternateFileName, dataA.cAlternateFileName );
return TRUE;
}
/*************************************************************************
* FindClose16 (KERNEL.415)
*/
{
FIND_FIRST_INFO *info;
if ((handle == INVALID_HANDLE_VALUE16) ||
!(info = (FIND_FIRST_INFO *)GlobalLock16( handle )))
{
DOS_ERROR( ER_InvalidHandle, EC_ProgramError, SA_Abort, EL_Disk );
return FALSE;
}
if (info->path) HeapFree( SystemHeap, 0, info->path );
GlobalUnlock16( handle );
GlobalFree16( handle );
return TRUE;
}
/*************************************************************************
* FindClose32 (KERNEL32.119)
*/
{
return FindClose16( (HANDLE16)handle );
}
/***********************************************************************
* DOSFS_UnixTimeToFileTime
*
* Convert a Unix time to FILETIME format.
* The FILETIME structure is a 64-bit value representing the number of
* 100-nanosecond intervals since January 1, 1601, 0:00.
* 'remainder' is the nonnegative number of 100-ns intervals
* corresponding to the time fraction smaller than 1 second that
* couldn't be stored in the time_t value.
void DOSFS_UnixTimeToFileTime( time_t unix_time, FILETIME *filetime,
DWORD remainder )
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/* NOTES:
CONSTANTS:
The time difference between 1 January 1601, 00:00:00 and
1 January 1970, 00:00:00 is 369 years, plus the leap years
from 1604 to 1968, excluding 1700, 1800, 1900.
This makes (1968 - 1600) / 4 - 3 = 89 leap days, and a total
of 134774 days.
Any day in that period had 24 * 60 * 60 = 86400 seconds.
The time difference is 134774 * 86400 * 10000000, which can be written
116444736000000000
27111902 * 2^32 + 3577643008
413 * 2^48 + 45534 * 2^32 + 54590 * 2^16 + 32768
If you find that these constants are buggy, please change them in all
instances in both conversion functions.
VERSIONS:
There are two versions, one of them uses long long variables and
is presumably faster but not ISO C. The other one uses standard C
data types and operations but relies on the assumption that negative
numbers are stored as 2's complement (-1 is 0xffff....). If this
assumption is violated, dates before 1970 will not convert correctly.
This should however work on any reasonable architecture where WINE
will run.
DETAILS:
Take care not to remove the casts. I have tested these functions
(in both versions) for a lot of numbers. I would be interested in
results on other compilers than GCC.
The operations have been designed to account for the possibility
of 64-bit time_t in future UNICES. Even the versions without
internal long long numbers will work if time_t only is 64 bit.
A 32-bit shift, which was necessary for that operation, turned out
not to work correctly in GCC, besides giving the warning. So I
used a double 16-bit shift instead. Numbers are in the ISO version
represented by three limbs, the most significant with 32 bit, the
other two with 16 bit each.
As the modulo-operator % is not well-defined for negative numbers,
negative divisors have been avoided in DOSFS_FileTimeToUnixTime.
There might be quicker ways to do this in C. Certainly so in
assembler.
Claus Fischer, fischer@iue.tuwien.ac.at
*/
#if __GNUC__
# define USE_LONG_LONG 1
#else
# define USE_LONG_LONG 0
#endif
#if USE_LONG_LONG /* gcc supports long long type */
long long int t = unix_time;
t *= 10000000;
t += 116444736000000000LL;
t += remainder;
filetime->dwLowDateTime = (UINT32)t;
filetime->dwHighDateTime = (UINT32)(t >> 32);
#else /* ISO version */
UINT32 a0; /* 16 bit, low bits */
UINT32 a1; /* 16 bit, medium bits */
UINT32 a2; /* 32 bit, high bits */
/* Copy the unix time to a2/a1/a0 */
a0 = unix_time & 0xffff;
a1 = (unix_time >> 16) & 0xffff;
/* This is obsolete if unix_time is only 32 bits, but it does not hurt.
Do not replace this by >> 32, it gives a compiler warning and it does
not work. */
a2 = (unix_time >= 0 ? (unix_time >> 16) >> 16 :
~((~unix_time >> 16) >> 16));
/* Multiply a by 10000000 (a = a2/a1/a0)
Split the factor into 10000 * 1000 which are both less than 0xffff. */
a0 *= 10000;
a1 = a1 * 10000 + (a0 >> 16);
a2 = a2 * 10000 + (a1 >> 16);
a0 &= 0xffff;
a1 &= 0xffff;
a0 *= 1000;
a1 = a1 * 1000 + (a0 >> 16);
a2 = a2 * 1000 + (a1 >> 16);
a0 &= 0xffff;
a1 &= 0xffff;
/* Add the time difference and the remainder */
a0 += 32768 + (remainder & 0xffff);
a1 += 54590 + (remainder >> 16 ) + (a0 >> 16);
a2 += 27111902 + (a1 >> 16);
a0 &= 0xffff;
a1 &= 0xffff;
/* Set filetime */
filetime->dwLowDateTime = (a1 << 16) + a0;
filetime->dwHighDateTime = a2;
#endif
/***********************************************************************
* DOSFS_FileTimeToUnixTime
*
* Convert a FILETIME format to Unix time.
* If not NULL, 'remainder' contains the fractional part of the filetime,
* in the range of [0..9999999] (even if time_t is negative).
time_t DOSFS_FileTimeToUnixTime( const FILETIME *filetime, DWORD *remainder )
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/* Read the comment in the function DOSFS_UnixTimeToFileTime. */
#if USE_LONG_LONG
long long int t = filetime->dwHighDateTime;
t <<= 32;
t += (UINT32)filetime->dwLowDateTime;
t -= 116444736000000000LL;
if (t < 0)
{
if (remainder) *remainder = 9999999 - (-t - 1) % 10000000;
return -1 - ((-t - 1) / 10000000);
}
else
{
if (remainder) *remainder = t % 10000000;
return t / 10000000;
}
#else /* ISO version */
UINT32 a0; /* 16 bit, low bits */
UINT32 a1; /* 16 bit, medium bits */
UINT32 a2; /* 32 bit, high bits */
UINT32 r; /* remainder of division */
unsigned int carry; /* carry bit for subtraction */
int negative; /* whether a represents a negative value */
/* Copy the time values to a2/a1/a0 */
a2 = (UINT32)filetime->dwHighDateTime;
a1 = ((UINT32)filetime->dwLowDateTime ) >> 16;
a0 = ((UINT32)filetime->dwLowDateTime ) & 0xffff;
/* Subtract the time difference */
if (a0 >= 32768 ) a0 -= 32768 , carry = 0;
else a0 += (1 << 16) - 32768 , carry = 1;
if (a1 >= 54590 + carry) a1 -= 54590 + carry, carry = 0;
else a1 += (1 << 16) - 54590 - carry, carry = 1;
a2 -= 27111902 + carry;
/* If a is negative, replace a by (-1-a) */
negative = (a2 >= ((UINT32)1) << 31);
if (negative)
{
/* Set a to -a - 1 (a is a2/a1/a0) */
a0 = 0xffff - a0;
a1 = 0xffff - a1;
a2 = ~a2;
}
/* Divide a by 10000000 (a = a2/a1/a0), put the rest into r.
Split the divisor into 10000 * 1000 which are both less than 0xffff. */
a1 += (a2 % 10000) << 16;
a2 /= 10000;
a0 += (a1 % 10000) << 16;
a1 /= 10000;
r = a0 % 10000;
a0 /= 10000;
a1 += (a2 % 1000) << 16;
a2 /= 1000;
a0 += (a1 % 1000) << 16;
a1 /= 1000;
r += (a0 % 1000) * 10000;
a0 /= 1000;
/* If a was negative, replace a by (-1-a) and r by (9999999 - r) */
if (negative)
{
/* Set a to -a - 1 (a is a2/a1/a0) */
a0 = 0xffff - a0;
a1 = 0xffff - a1;
a2 = ~a2;
r = 9999999 - r;
}
if (remainder) *remainder = r;
/* Do not replace this by << 32, it gives a compiler warning and it does
not work. */
return ((((time_t)a2) << 16) << 16) + (a1 << 16) + a0;
#endif
/***********************************************************************
* DosDateTimeToFileTime (KERNEL32.76)
*/
BOOL32 WINAPI DosDateTimeToFileTime( WORD fatdate, WORD fattime, LPFILETIME ft)
struct tm newtm;
newtm.tm_sec = (fattime & 0x1f) * 2;
newtm.tm_min = (fattime >> 5) & 0x3f;
newtm.tm_hour = (fattime >> 11);
newtm.tm_mday = (fatdate & 0x1f);
newtm.tm_mon = ((fatdate >> 5) & 0x0f) - 1;
newtm.tm_year = (fatdate >> 9) + 80;
DOSFS_UnixTimeToFileTime( mktime( &newtm ), ft, 0 );
return TRUE;
}
/***********************************************************************
* FileTimeToDosDateTime (KERNEL32.111)
*/
BOOL32 WINAPI FileTimeToDosDateTime( const FILETIME *ft, LPWORD fatdate,
LPWORD fattime )
time_t unixtime = DOSFS_FileTimeToUnixTime( ft, NULL );
struct tm *tm = localtime( &unixtime );
if (fattime)
*fattime = (tm->tm_hour << 11) + (tm->tm_min << 5) + (tm->tm_sec / 2);
if (fatdate)
*fatdate = ((tm->tm_year - 80) << 9) + ((tm->tm_mon + 1) << 5)
+ tm->tm_mday;
return TRUE;
}
/***********************************************************************
* LocalFileTimeToFileTime (KERNEL32.373)
*/
BOOL32 WINAPI LocalFileTimeToFileTime( const FILETIME *localft,
LPFILETIME utcft )
/* convert from local to UTC. Perhaps not correct. FIXME */
time_t unixtime = DOSFS_FileTimeToUnixTime( localft, &remainder );
xtm = gmtime( &unixtime );
DOSFS_UnixTimeToFileTime( mktime(xtm), utcft, remainder );
return TRUE;
}
/***********************************************************************
* FileTimeToLocalFileTime (KERNEL32.112)
*/
BOOL32 WINAPI FileTimeToLocalFileTime( const FILETIME *utcft,
LPFILETIME localft )
/* convert from UTC to local. Perhaps not correct. FIXME */
time_t unixtime = DOSFS_FileTimeToUnixTime( utcft, &remainder );
xtm = localtime( &unixtime );
DOSFS_UnixTimeToFileTime( mktime(xtm), localft, remainder );
return TRUE;
}
/***********************************************************************
* FileTimeToSystemTime (KERNEL32.113)
*/
BOOL32 WINAPI FileTimeToSystemTime( const FILETIME *ft, LPSYSTEMTIME syst )
DWORD remainder;
time_t xtime = DOSFS_FileTimeToUnixTime( ft, &remainder );
syst->wYear = xtm->tm_year;
syst->wMonth = xtm->tm_mon;
syst->wDayOfWeek = xtm->tm_wday;
syst->wDay = xtm->tm_mday;
syst->wHour = xtm->tm_hour;
syst->wMinute = xtm->tm_min;
syst->wSecond = xtm->tm_sec;
syst->wMilliseconds = remainder / 10000;
/***********************************************************************
* QueryDosDeviceA (KERNEL32.413)
*
* returns array of strings terminated by \0, terminated by \0
*/
DWORD WINAPI QueryDosDevice32A(LPCSTR devname,LPSTR target,DWORD bufsize)
{
LPSTR s;
char buffer[200];
dprintf_dosfs(stddeb,"QueryDosDevice(%s,...)\n",devname?devname:"<null>");
if (!devname) {
/* return known MSDOS devices */
lstrcpy32A(buffer,"CON COM1 COM2 LPT1 NUL ");
while ((s=strchr(buffer,' ')))
*s='\0';
lstrcpyn32A(target,buffer,bufsize);
return strlen(buffer);
}
lstrcpy32A(buffer,"\\DEV\\");
lstrcat32A(buffer,devname);
lstrcpyn32A(target,buffer,bufsize);
return strlen(buffer);
}
/***********************************************************************
* QueryDosDeviceW (KERNEL32.414)
*
* returns array of strings terminated by \0, terminated by \0
*/
DWORD WINAPI QueryDosDevice32W(LPCWSTR devname,LPWSTR target,DWORD bufsize)
{
LPSTR devnameA = devname?HEAP_strdupWtoA(GetProcessHeap(),0,devname):NULL;
LPSTR targetA = (LPSTR)HEAP_xalloc(GetProcessHeap(),0,bufsize);
DWORD ret = QueryDosDevice32A(devnameA,targetA,bufsize);
lstrcpynAtoW(target,targetA,bufsize);
if (devnameA) HeapFree(GetProcessHeap(),0,devnameA);
if (targetA) HeapFree(GetProcessHeap(),0,targetA);
return ret;
}
/***********************************************************************
* SystemTimeToFileTime (KERNEL32.526)
*/
BOOL32 WINAPI SystemTimeToFileTime( const SYSTEMTIME *syst, LPFILETIME ft )
{
struct tm xtm;
xtm.tm_year = syst->wYear;
xtm.tm_mon = syst->wMonth;
xtm.tm_wday = syst->wDayOfWeek;
xtm.tm_mday = syst->wDay;
xtm.tm_hour = syst->wHour;
xtm.tm_min = syst->wMinute;
xtm.tm_sec = syst->wSecond;
DOSFS_UnixTimeToFileTime( mktime(&xtm), ft, syst->wMilliseconds * 10000 );