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Sweden-Number/files/file.c

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/*
* File handling functions
*
* Copyright 1993 John Burton
* Copyright 1996 Alexandre Julliard
*/
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <sys/errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <time.h>
#include <unistd.h>
#include <utime.h>
#include "windows.h"
#include "winerror.h"
#include "drive.h"
#include "file.h"
#include "global.h"
#include "heap.h"
#include "msdos.h"
#include "options.h"
#include "ldt.h"
#include "process.h"
#include "task.h"
#include "debug.h"
#if defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
#define MAP_ANON MAP_ANONYMOUS
#endif
static BOOL32 FILE_Read(K32OBJ *ptr, LPVOID lpBuffer, DWORD nNumberOfChars,
LPDWORD lpNumberOfChars, LPOVERLAPPED lpOverlapped);
static BOOL32 FILE_Write(K32OBJ *ptr, LPCVOID lpBuffer, DWORD nNumberOfChars,
LPDWORD lpNumberOfChars, LPOVERLAPPED lpOverlapped);
static void FILE_Destroy( K32OBJ *obj );
const K32OBJ_OPS FILE_Ops =
{
/* Object cannot be waited upon (FIXME: for now) */
NULL, /* signaled */
NULL, /* satisfied */
NULL, /* add_wait */
NULL, /* remove_wait */
FILE_Read, /* read */
FILE_Write, /* write */
FILE_Destroy /* destroy */
};
struct DOS_FILE_LOCK {
struct DOS_FILE_LOCK * next;
DWORD base;
DWORD len;
DWORD processId;
FILE_OBJECT * dos_file;
char * unix_name;
};
typedef struct DOS_FILE_LOCK DOS_FILE_LOCK;
static DOS_FILE_LOCK *locks = NULL;
static void DOS_RemoveFileLocks(FILE_OBJECT *file);
/***********************************************************************
* FILE_Alloc
*
* Allocate a file.
*/
HFILE32 FILE_Alloc( FILE_OBJECT **file )
{
HFILE32 handle;
*file = HeapAlloc( SystemHeap, 0, sizeof(FILE_OBJECT) );
if (!*file)
{
DOS_ERROR( ER_TooManyOpenFiles, EC_ProgramError, SA_Abort, EL_Disk );
return (HFILE32)NULL;
}
(*file)->header.type = K32OBJ_FILE;
(*file)->header.refcount = 0;
(*file)->unix_handle = -1;
(*file)->unix_name = NULL;
(*file)->type = FILE_TYPE_DISK;
(*file)->pos = 0;
(*file)->mode = 0;
handle = HANDLE_Alloc( PROCESS_Current(), &(*file)->header,
FILE_ALL_ACCESS | GENERIC_READ |
GENERIC_WRITE | GENERIC_EXECUTE /*FIXME*/, TRUE, -1 );
/* If the allocation failed, the object is already destroyed */
if (handle == INVALID_HANDLE_VALUE32) *file = NULL;
return handle;
}
/* FIXME: lpOverlapped is ignored */
static BOOL32 FILE_Read(K32OBJ *ptr, LPVOID lpBuffer, DWORD nNumberOfChars,
LPDWORD lpNumberOfChars, LPOVERLAPPED lpOverlapped)
{
FILE_OBJECT *file = (FILE_OBJECT *)ptr;
int result;
TRACE(file, "%p %p %ld\n", ptr, lpBuffer,
nNumberOfChars);
if (nNumberOfChars == 0) {
*lpNumberOfChars = 0; /* FIXME: does this change */
return TRUE;
}
if ( (file->pos < 0) || /* workaround, see SetFilePointer */
((result = read(file->unix_handle, lpBuffer, nNumberOfChars)) == -1) )
{
FILE_SetDosError();
return FALSE;
}
file->pos += result;
*lpNumberOfChars = result;
return TRUE;
}
/**
* experimentation yields that WriteFile:
* o does not truncate on write of 0
* o always changes the *lpNumberOfChars to actual number of
* characters written
* o write of 0 nNumberOfChars returns TRUE
*/
static BOOL32 FILE_Write(K32OBJ *ptr, LPCVOID lpBuffer, DWORD nNumberOfChars,
LPDWORD lpNumberOfChars, LPOVERLAPPED lpOverlapped)
{
FILE_OBJECT *file = (FILE_OBJECT *)ptr;
int result;
TRACE(file, "%p %p %ld\n", ptr, lpBuffer,
nNumberOfChars);
*lpNumberOfChars = 0;
/*
* I assume this loop around EAGAIN is here because
* win32 doesn't have interrupted system calls
*/
if (file->pos < 0) { /* workaround, see SetFilePointer */
FILE_SetDosError();
return FALSE;
}
for (;;)
{
result = write(file->unix_handle, lpBuffer, nNumberOfChars);
if (result != -1) {
*lpNumberOfChars = result;
file->pos += result;
return TRUE;
}
if (errno != EINTR) {
FILE_SetDosError();
return FALSE;
}
}
}
/***********************************************************************
* FILE_Destroy
*
* Destroy a DOS file.
*/
static void FILE_Destroy( K32OBJ *ptr )
{
FILE_OBJECT *file = (FILE_OBJECT *)ptr;
assert( ptr->type == K32OBJ_FILE );
DOS_RemoveFileLocks(file);
if (file->unix_handle != -1) close( file->unix_handle );
if (file->unix_name) HeapFree( SystemHeap, 0, file->unix_name );
ptr->type = K32OBJ_UNKNOWN;
HeapFree( SystemHeap, 0, file );
}
/***********************************************************************
* FILE_GetFile
*
* Return the DOS file associated to a task file handle. FILE_ReleaseFile must
* be called to release the file.
*/
FILE_OBJECT *FILE_GetFile( HFILE32 handle )
{
return (FILE_OBJECT *)HANDLE_GetObjPtr( PROCESS_Current(), handle,
K32OBJ_FILE, 0 /*FIXME*/, NULL );
}
/***********************************************************************
* FILE_ReleaseFile
*
* Release a DOS file obtained with FILE_GetFile.
*/
void FILE_ReleaseFile( FILE_OBJECT *file )
{
K32OBJ_DecCount( &file->header );
}
/***********************************************************************
* FILE_GetUnixHandle
*
* Return the Unix handle associated to a file handle.
*/
int FILE_GetUnixHandle( HFILE32 hFile )
{
FILE_OBJECT *file;
int ret;
if (!(file = FILE_GetFile( hFile ))) return -1;
ret = file->unix_handle;
FILE_ReleaseFile( file );
return ret;
}
/***********************************************************************
* FILE_UnixToDosMode
*
* PARAMS
* unixmode[I]
* RETURNS
* dosmode
*/
static int FILE_UnixToDosMode(int unixMode)
{
int dosMode;
switch(unixMode & 3)
{
case O_WRONLY:
dosMode = OF_WRITE;
break;
case O_RDWR:
dosMode =OF_READWRITE;
break;
case O_RDONLY:
default:
dosMode = OF_READ;
break;
}
return dosMode;
}
/***********************************************************************
* FILE_DOSToUnixMode
*
* PARAMS
* dosMode[I]
* RETURNS
* unixmode
*/
static int FILE_DOSToUnixMode(int dosMode)
{
int unixMode;
switch(dosMode & 3)
{
case OF_WRITE:
unixMode = O_WRONLY; break;
case OF_READWRITE:
unixMode = O_RDWR; break;
case OF_READ:
default:
unixMode = O_RDONLY; break;
}
return unixMode;
}
/***********************************************************************
* FILE_ShareDeny
*
* PARAMS
* oldmode[I] mode how file was first opened
* mode[I] mode how the file should get opened
* RETURNS
* TRUE: deny open
* FALSE: allow open
*
* Look what we have to do with the given SHARE modes
*
* Ralph Brown's interrupt list gives following explication, I guess
* the same holds for Windows, DENY ALL should be OF_SHARE_COMPAT
*
* FIXME: Validate this function
========from Ralph Brown's list =========
(Table 0750)
Values of DOS file sharing behavior:
| Second and subsequent Opens
First |Compat Deny Deny Deny Deny
Open | All Write Read None
|R W RW R W RW R W RW R W RW R W RW
- - - - -| - - - - - - - - - - - - - - - - -
Compat R |Y Y Y N N N 1 N N N N N 1 N N
W |Y Y Y N N N N N N N N N N N N
RW|Y Y Y N N N N N N N N N N N N
- - - - -|
Deny R |C C C N N N N N N N N N N N N
All W |C C C N N N N N N N N N N N N
RW|C C C N N N N N N N N N N N N
- - - - -|
Deny R |2 C C N N N Y N N N N N Y N N
Write W |C C C N N N N N N Y N N Y N N
RW|C C C N N N N N N N N N Y N N
- - - - -|
Deny R |C C C N N N N Y N N N N N Y N
Read W |C C C N N N N N N N Y N N Y N
RW|C C C N N N N N N N N N N Y N
- - - - -|
Deny R |2 C C N N N Y Y Y N N N Y Y Y
None W |C C C N N N N N N Y Y Y Y Y Y
RW|C C C N N N N N N N N N Y Y Y
Legend: Y = open succeeds, N = open fails with error code 05h
C = open fails, INT 24 generated
1 = open succeeds if file read-only, else fails with error code
2 = open succeeds if file read-only, else fails with INT 24
========end of description from Ralph Brown's List =====
For every "Y" in the table we return FALSE
For every "N" we set the DOS_ERROR and return TRUE
For all other cases we barf,set the DOS_ERROR and return TRUE
*/
static BOOL32 FILE_ShareDeny( int mode, int oldmode)
{
int oldsharemode = oldmode & 0x70;
int sharemode = mode & 0x70;
int oldopenmode = oldmode & 3;
int openmode = mode & 3;
switch (oldsharemode)
{
case OF_SHARE_COMPAT:
if (sharemode == OF_SHARE_COMPAT) return FALSE;
if (openmode == OF_READ) goto test_ro_err05 ;
goto fail_error05;
case OF_SHARE_EXCLUSIVE:
if (sharemode == OF_SHARE_COMPAT) goto fail_int24;
goto fail_error05;
case OF_SHARE_DENY_WRITE:
if (openmode != OF_READ)
{
if (sharemode == OF_SHARE_COMPAT) goto fail_int24;
goto fail_error05;
}
switch (sharemode)
{
case OF_SHARE_COMPAT:
if (oldopenmode == OF_READ) goto test_ro_int24 ;
goto fail_int24;
case OF_SHARE_DENY_NONE :
return FALSE;
case OF_SHARE_DENY_WRITE :
if (oldopenmode == OF_READ) return FALSE;
case OF_SHARE_DENY_READ :
if (oldopenmode == OF_WRITE) return FALSE;
case OF_SHARE_EXCLUSIVE:
default:
goto fail_error05;
}
break;
case OF_SHARE_DENY_READ:
if (openmode != OF_WRITE)
{
if (sharemode == OF_SHARE_COMPAT) goto fail_int24;
goto fail_error05;
}
switch (sharemode)
{
case OF_SHARE_COMPAT:
goto fail_int24;
case OF_SHARE_DENY_NONE :
return FALSE;
case OF_SHARE_DENY_WRITE :
if (oldopenmode == OF_READ) return FALSE;
case OF_SHARE_DENY_READ :
if (oldopenmode == OF_WRITE) return FALSE;
case OF_SHARE_EXCLUSIVE:
default:
goto fail_error05;
}
break;
case OF_SHARE_DENY_NONE:
switch (sharemode)
{
case OF_SHARE_COMPAT:
goto fail_int24;
case OF_SHARE_DENY_NONE :
return FALSE;
case OF_SHARE_DENY_WRITE :
if (oldopenmode == OF_READ) return FALSE;
case OF_SHARE_DENY_READ :
if (oldopenmode == OF_WRITE) return FALSE;
case OF_SHARE_EXCLUSIVE:
default:
goto fail_error05;
}
default:
ERR(file,"unknown mode\n");
}
ERR(file,"shouldn't happen\n");
ERR(file,"Please report to bon@elektron.ikp.physik.tu-darmstadt.de\n");
return TRUE;
test_ro_int24:
FIXME(file,"test if file is RO missing\n");
/* Fall through */
fail_int24:
FIXME(file,"generate INT24 missing\n");
/* Is this the right error? */
DOS_ERROR( ER_AccessDenied, EC_AccessDenied, SA_Abort, EL_Disk );
return TRUE;
test_ro_err05:
FIXME(file,"test if file is RO missing\n");
/* fall through */
fail_error05:
DOS_ERROR( ER_AccessDenied, EC_AccessDenied, SA_Abort, EL_Disk );
return TRUE;
}
/***********************************************************************
*
*
* Look if the File is in Use For the OF_SHARE_XXX options
*
* PARAMS
* name [I]: full unix name of the file that should be opened
* mode [O]: mode how the file was first opened
* RETURNS
* TRUE if the file was opened before
* FALSE if we open the file exclusive for this process
*
* Scope of the files we look for is only the current pdb
* Could we use /proc/self/? on Linux for this?
* Should we use flock? Should we create another structure?
* Searching through all files seem quite expensive for me, but
* I don't see any other way.
*
* FIXME: Extend scope to the whole Wine process
*
*/
static BOOL32 FILE_InUse(char * name, int * mode)
{
FILE_OBJECT *file;
int i;
HGLOBAL16 hPDB = GetCurrentPDB();
PDB *pdb = (PDB *)GlobalLock16( hPDB );
if (!pdb) return 0;
for (i=0;i<pdb->nbFiles;i++)
{
file =FILE_GetFile( (HFILE32) i);
if(file)
{
if(file->unix_name)
{
TRACE(file,"got %s at %d\n",file->unix_name,i);
if(!lstrcmp32A(file->unix_name,name))
{
*mode = file->mode;
FILE_ReleaseFile(file);
return TRUE;
}
FILE_ReleaseFile(file);
}
}
}
return FALSE;
}
/***********************************************************************
* FILE_SetDosError
*
* Set the DOS error code from errno.
*/
void FILE_SetDosError(void)
{
int save_errno = errno; /* errno gets overwritten by printf */
TRACE(file, "errno = %d %s\n", errno, strerror(errno));
switch (save_errno)
{
case EAGAIN:
DOS_ERROR( ER_ShareViolation, EC_Temporary, SA_Retry, EL_Disk );
break;
case EBADF:
DOS_ERROR( ER_InvalidHandle, EC_ProgramError, SA_Abort, EL_Disk );
break;
case ENOSPC:
DOS_ERROR( ER_DiskFull, EC_MediaError, SA_Abort, EL_Disk );
break;
case EACCES:
case EPERM:
case EROFS:
DOS_ERROR( ER_AccessDenied, EC_AccessDenied, SA_Abort, EL_Disk );
break;
case EBUSY:
DOS_ERROR( ER_LockViolation, EC_AccessDenied, SA_Abort, EL_Disk );
break;
case ENOENT:
DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
break;
case EISDIR:
DOS_ERROR( ER_CanNotMakeDir, EC_AccessDenied, SA_Abort, EL_Unknown );
break;
case ENFILE:
case EMFILE:
DOS_ERROR( ER_NoMoreFiles, EC_MediaError, SA_Abort, EL_Unknown );
break;
case EEXIST:
DOS_ERROR( ER_FileExists, EC_Exists, SA_Abort, EL_Disk );
break;
case EINVAL:
case ESPIPE:
DOS_ERROR( ER_SeekError, EC_NotFound, SA_Ignore, EL_Disk );
break;
case ENOTEMPTY:
DOS_ERROR( ERROR_DIR_NOT_EMPTY, EC_Exists, SA_Ignore, EL_Disk );
break;
default:
perror( "int21: unknown errno" );
DOS_ERROR( ER_GeneralFailure, EC_SystemFailure, SA_Abort, EL_Unknown );
break;
}
errno = save_errno;
}
/***********************************************************************
* FILE_DupUnixHandle
*
* Duplicate a Unix handle into a task handle.
*/
HFILE32 FILE_DupUnixHandle( int fd )
{
HFILE32 handle;
FILE_OBJECT *file;
if ((handle = FILE_Alloc( &file )) != INVALID_HANDLE_VALUE32)
{
if ((file->unix_handle = dup(fd)) == -1)
{
FILE_SetDosError();
CloseHandle( handle );
return INVALID_HANDLE_VALUE32;
}
}
return handle;
}
/***********************************************************************
* FILE_OpenUnixFile
*/
HFILE32 FILE_OpenUnixFile( const char *name, int mode )
{
HFILE32 handle;
FILE_OBJECT *file;
struct stat st;
if ((handle = FILE_Alloc( &file )) == INVALID_HANDLE_VALUE32)
return INVALID_HANDLE_VALUE32;
if ((file->unix_handle = open( name, mode, 0666 )) == -1)
{
if (!Options.failReadOnly && (mode == O_RDWR))
file->unix_handle = open( name, O_RDONLY );
}
if ((file->unix_handle == -1) || (fstat( file->unix_handle, &st ) == -1))
{
FILE_SetDosError();
CloseHandle( handle );
return INVALID_HANDLE_VALUE32;
}
if (S_ISDIR(st.st_mode))
{
DOS_ERROR( ER_AccessDenied, EC_AccessDenied, SA_Abort, EL_Disk );
CloseHandle( handle );
return INVALID_HANDLE_VALUE32;
}
/* File opened OK, now fill the FILE_OBJECT */
file->unix_name = HEAP_strdupA( SystemHeap, 0, name );
return handle;
}
/***********************************************************************
* FILE_Open
*
* path[I] name of file to open
* mode[I] mode how to open, in unix notation
* shareMode[I] the sharing mode in the win OpenFile notation
*
*/
HFILE32 FILE_Open( LPCSTR path, INT32 mode, INT32 shareMode )
{
DOS_FULL_NAME full_name;
const char *unixName;
int oldMode, dosMode; /* FIXME: Do we really need unixmode as argument for
FILE_Open */
FILE_OBJECT *file;
HFILE32 hFileRet;
BOOL32 fileInUse = FALSE;
TRACE(file, "'%s' %04x\n", path, mode );
if (!path) return HFILE_ERROR32;
if (DOSFS_GetDevice( path ))
{
HFILE32 ret;
TRACE(file, "opening device '%s'\n", path );
if (HFILE_ERROR32!=(ret=DOSFS_OpenDevice( path, mode )))
return ret;
/* Do not silence this please. It is a critical error. -MM */
ERR(file, "Couldn't open device '%s'!\n",path);
DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
return HFILE_ERROR32;
}
else /* check for filename, don't check for last entry if creating */
{
if (!DOSFS_GetFullName( path, !(mode & O_CREAT), &full_name ))
return HFILE_ERROR32;
unixName = full_name.long_name;
}
dosMode = FILE_UnixToDosMode(mode)| shareMode;
fileInUse = FILE_InUse(full_name.long_name,&oldMode);
if(fileInUse)
{
TRACE(file, "found another instance with mode 0x%02x\n",oldMode&0x70);
if (FILE_ShareDeny(dosMode,oldMode)) return HFILE_ERROR32;
}
hFileRet = FILE_OpenUnixFile( unixName, mode );
/* we need to save the mode, but only if it is not in use yet*/
if ((hFileRet) && (!fileInUse) && ((file =FILE_GetFile(hFileRet))))
{
file->mode=dosMode;
FILE_ReleaseFile(file);
}
return hFileRet;
}
/***********************************************************************
* FILE_Create
*/
static HFILE32 FILE_Create( LPCSTR path, int mode, int unique )
{
HFILE32 handle;
FILE_OBJECT *file;
DOS_FULL_NAME full_name;
BOOL32 fileInUse = FALSE;
int oldMode,dosMode; /* FIXME: Do we really need unixmode as argument for
FILE_Create */;
TRACE(file, "'%s' %04x %d\n", path, mode, unique );
if (!path) return INVALID_HANDLE_VALUE32;
if (DOSFS_GetDevice( path ))
{
WARN(file, "cannot create DOS device '%s'!\n", path);
DOS_ERROR( ER_AccessDenied, EC_NotFound, SA_Abort, EL_Disk );
return INVALID_HANDLE_VALUE32;
}
if ((handle = FILE_Alloc( &file )) == INVALID_HANDLE_VALUE32)
return INVALID_HANDLE_VALUE32;
if (!DOSFS_GetFullName( path, FALSE, &full_name ))
{
CloseHandle( handle );
return INVALID_HANDLE_VALUE32;
}
dosMode = FILE_UnixToDosMode(mode);
fileInUse = FILE_InUse(full_name.long_name,&oldMode);
if(fileInUse)
{
TRACE(file, "found another instance with mode 0x%02x\n",oldMode&0x70);
if (FILE_ShareDeny(dosMode,oldMode)) return INVALID_HANDLE_VALUE32;
}
if ((file->unix_handle = open( full_name.long_name,
O_CREAT | O_TRUNC | O_RDWR | (unique ? O_EXCL : 0),
mode )) == -1)
{
FILE_SetDosError();
CloseHandle( handle );
return INVALID_HANDLE_VALUE32;
}
/* File created OK, now fill the FILE_OBJECT */
file->unix_name = HEAP_strdupA( SystemHeap, 0, full_name.long_name );
file->mode = dosMode;
return handle;
}
/***********************************************************************
* FILE_FillInfo
*
* Fill a file information from a struct stat.
*/
static void FILE_FillInfo( struct stat *st, BY_HANDLE_FILE_INFORMATION *info )
{
if (S_ISDIR(st->st_mode))
info->dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
else
info->dwFileAttributes = FILE_ATTRIBUTE_ARCHIVE;
if (!(st->st_mode & S_IWUSR))
info->dwFileAttributes |= FILE_ATTRIBUTE_READONLY;
DOSFS_UnixTimeToFileTime( st->st_mtime, &info->ftCreationTime, 0 );
DOSFS_UnixTimeToFileTime( st->st_mtime, &info->ftLastWriteTime, 0 );
DOSFS_UnixTimeToFileTime( st->st_atime, &info->ftLastAccessTime, 0 );
info->dwVolumeSerialNumber = 0; /* FIXME */
info->nFileSizeHigh = 0;
info->nFileSizeLow = S_ISDIR(st->st_mode) ? 0 : st->st_size;
info->nNumberOfLinks = st->st_nlink;
info->nFileIndexHigh = 0;
info->nFileIndexLow = st->st_ino;
}
/***********************************************************************
* FILE_Stat
*
* Stat a Unix path name. Return TRUE if OK.
*/
BOOL32 FILE_Stat( LPCSTR unixName, BY_HANDLE_FILE_INFORMATION *info )
{
struct stat st;
if (!unixName || !info) return FALSE;
if (stat( unixName, &st ) == -1)
{
FILE_SetDosError();
return FALSE;
}
FILE_FillInfo( &st, info );
return TRUE;
}
/***********************************************************************
* GetFileInformationByHandle (KERNEL32.219)
*/
DWORD WINAPI GetFileInformationByHandle( HFILE32 hFile,
BY_HANDLE_FILE_INFORMATION *info )
{
FILE_OBJECT *file;
DWORD ret = 0;
struct stat st;
if (!info) return 0;
if (!(file = FILE_GetFile( hFile ))) return 0;
if (fstat( file->unix_handle, &st ) == -1) FILE_SetDosError();
else
{
FILE_FillInfo( &st, info );
ret = 1;
}
FILE_ReleaseFile( file );
return ret;
}
/**************************************************************************
* GetFileAttributes16 (KERNEL.420)
*/
DWORD WINAPI GetFileAttributes16( LPCSTR name )
{
return GetFileAttributes32A( name );
}
/**************************************************************************
* GetFileAttributes32A (KERNEL32.217)
*/
DWORD WINAPI GetFileAttributes32A( LPCSTR name )
{
DOS_FULL_NAME full_name;
BY_HANDLE_FILE_INFORMATION info;
if (name == NULL || *name=='\0') return -1;
if (!DOSFS_GetFullName( name, TRUE, &full_name )) return -1;
if (!FILE_Stat( full_name.long_name, &info )) return -1;
return info.dwFileAttributes;
}
/**************************************************************************
* GetFileAttributes32W (KERNEL32.218)
*/
DWORD WINAPI GetFileAttributes32W( LPCWSTR name )
{
LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, name );
DWORD res = GetFileAttributes32A( nameA );
HeapFree( GetProcessHeap(), 0, nameA );
return res;
}
/***********************************************************************
* GetFileSize (KERNEL32.220)
*/
DWORD WINAPI GetFileSize( HFILE32 hFile, LPDWORD filesizehigh )
{
BY_HANDLE_FILE_INFORMATION info;
if (!GetFileInformationByHandle( hFile, &info )) return 0;
if (filesizehigh) *filesizehigh = info.nFileSizeHigh;
return info.nFileSizeLow;
}
/***********************************************************************
* GetFileTime (KERNEL32.221)
*/
BOOL32 WINAPI GetFileTime( HFILE32 hFile, FILETIME *lpCreationTime,
FILETIME *lpLastAccessTime,
FILETIME *lpLastWriteTime )
{
BY_HANDLE_FILE_INFORMATION info;
if (!GetFileInformationByHandle( hFile, &info )) return FALSE;
if (lpCreationTime) *lpCreationTime = info.ftCreationTime;
if (lpLastAccessTime) *lpLastAccessTime = info.ftLastAccessTime;
if (lpLastWriteTime) *lpLastWriteTime = info.ftLastWriteTime;
return TRUE;
}
/***********************************************************************
* CompareFileTime (KERNEL32.28)
*/
INT32 WINAPI CompareFileTime( LPFILETIME x, LPFILETIME y )
{
if (!x || !y) return -1;
if (x->dwHighDateTime > y->dwHighDateTime)
return 1;
if (x->dwHighDateTime < y->dwHighDateTime)
return -1;
if (x->dwLowDateTime > y->dwLowDateTime)
return 1;
if (x->dwLowDateTime < y->dwLowDateTime)
return -1;
return 0;
}
/***********************************************************************
* FILE_Dup
*
* dup() function for DOS handles.
*/
HFILE32 FILE_Dup( HFILE32 hFile )
{
HFILE32 handle;
TRACE(file, "FILE_Dup for handle %d\n", hFile );
if (!DuplicateHandle( GetCurrentProcess(), hFile, GetCurrentProcess(),
&handle, FILE_ALL_ACCESS /* FIXME */, FALSE, 0 ))
handle = HFILE_ERROR32;
TRACE(file, "FILE_Dup return handle %d\n", handle );
return handle;
}
/***********************************************************************
* FILE_Dup2
*
* dup2() function for DOS handles.
*/
HFILE32 FILE_Dup2( HFILE32 hFile1, HFILE32 hFile2 )
{
FILE_OBJECT *file;
TRACE(file, "FILE_Dup2 for handle %d\n", hFile1 );
/* FIXME: should use DuplicateHandle */
if (!(file = FILE_GetFile( hFile1 ))) return HFILE_ERROR32;
if (!HANDLE_SetObjPtr( PROCESS_Current(), hFile2, &file->header, 0 ))
hFile2 = HFILE_ERROR32;
FILE_ReleaseFile( file );
return hFile2;
}
/***********************************************************************
* GetTempFileName16 (KERNEL.97)
*/
UINT16 WINAPI GetTempFileName16( BYTE drive, LPCSTR prefix, UINT16 unique,
LPSTR buffer )
{
char temppath[144];
if (!(drive & ~TF_FORCEDRIVE)) /* drive 0 means current default drive */
drive |= DRIVE_GetCurrentDrive() + 'A';
if ((drive & TF_FORCEDRIVE) &&
!DRIVE_IsValid( toupper(drive & ~TF_FORCEDRIVE) - 'A' ))
{
drive &= ~TF_FORCEDRIVE;
WARN(file, "invalid drive %d specified\n", drive );
}
if (drive & TF_FORCEDRIVE)
sprintf(temppath,"%c:", drive & ~TF_FORCEDRIVE );
else
GetTempPath32A( 132, temppath );
return (UINT16)GetTempFileName32A( temppath, prefix, unique, buffer );
}
/***********************************************************************
* GetTempFileName32A (KERNEL32.290)
*/
UINT32 WINAPI GetTempFileName32A( LPCSTR path, LPCSTR prefix, UINT32 unique,
LPSTR buffer)
{
DOS_FULL_NAME full_name;
int i;
LPSTR p;
UINT32 num = unique ? (unique & 0xffff) : time(NULL) & 0xffff;
if ( !path || !prefix || !buffer ) return 0;
strcpy( buffer, path );
p = buffer + strlen(buffer);
/* add a \, if there isn't one and path is more than just the drive letter ... */
if ( !((strlen(buffer) == 2) && (buffer[1] == ':'))
&& ((p == buffer) || (p[-1] != '\\'))) *p++ = '\\';
*p++ = '~';
for (i = 3; (i > 0) && (*prefix); i--) *p++ = *prefix++;
sprintf( p, "%04x.tmp", num );
/* Now try to create it */
if (!unique)
{
do
{
HFILE32 handle = FILE_Create( buffer, 0666, TRUE );
if (handle != INVALID_HANDLE_VALUE32)
{ /* We created it */
TRACE(file, "created %s\n",
buffer);
CloseHandle( handle );
break;
}
if (DOS_ExtendedError != ER_FileExists)
break; /* No need to go on */
num++;
sprintf( p, "%04x.tmp", num );
} while (num != (unique & 0xffff));
}
/* Get the full path name */
if (DOSFS_GetFullName( buffer, FALSE, &full_name ))
{
/* Check if we have write access in the directory */
if ((p = strrchr( full_name.long_name, '/' ))) *p = '\0';
if (access( full_name.long_name, W_OK ) == -1)
WARN(file, "returns '%s', which doesn't seem to be writeable.\n",
buffer);
}
TRACE(file, "returning %s\n", buffer );
return unique ? unique : num;
}
/***********************************************************************
* GetTempFileName32W (KERNEL32.291)
*/
UINT32 WINAPI GetTempFileName32W( LPCWSTR path, LPCWSTR prefix, UINT32 unique,
LPWSTR buffer )
{
LPSTR patha,prefixa;
char buffera[144];
UINT32 ret;
if (!path) return 0;
patha = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
prefixa = HEAP_strdupWtoA( GetProcessHeap(), 0, prefix );
ret = GetTempFileName32A( patha, prefixa, unique, buffera );
lstrcpyAtoW( buffer, buffera );
HeapFree( GetProcessHeap(), 0, patha );
HeapFree( GetProcessHeap(), 0, prefixa );
return ret;
}
/***********************************************************************
* FILE_DoOpenFile
*
* Implementation of OpenFile16() and OpenFile32().
*/
static HFILE32 FILE_DoOpenFile( LPCSTR name, OFSTRUCT *ofs, UINT32 mode,
BOOL32 win32 )
{
HFILE32 hFileRet;
FILETIME filetime;
WORD filedatetime[2];
DOS_FULL_NAME full_name;
char *p;
int unixMode, oldMode;
FILE_OBJECT *file;
BOOL32 fileInUse = FALSE;
if (!ofs) return HFILE_ERROR32;
ofs->cBytes = sizeof(OFSTRUCT);
ofs->nErrCode = 0;
if (mode & OF_REOPEN) name = ofs->szPathName;
if (!name) {
ERR(file, "called with `name' set to NULL ! Please debug.\n");
return HFILE_ERROR32;
}
TRACE(file, "%s %04x\n", name, mode );
/* the watcom 10.6 IDE relies on a valid path returned in ofs->szPathName
Are there any cases where getting the path here is wrong?
Uwe Bonnes 1997 Apr 2 */
if (!GetFullPathName32A( name, sizeof(ofs->szPathName),
ofs->szPathName, NULL )) goto error;
/* OF_PARSE simply fills the structure */
if (mode & OF_PARSE)
{
ofs->fFixedDisk = (GetDriveType16( ofs->szPathName[0]-'A' )
!= DRIVE_REMOVABLE);
TRACE(file, "(%s): OF_PARSE, res = '%s'\n",
name, ofs->szPathName );
return 0;
}
/* OF_CREATE is completely different from all other options, so
handle it first */
if (mode & OF_CREATE)
{
if ((hFileRet = FILE_Create(name,0666,FALSE))== INVALID_HANDLE_VALUE32)
goto error;
goto success;
}
/* If OF_SEARCH is set, ignore the given path */
if ((mode & OF_SEARCH) && !(mode & OF_REOPEN))
{
/* First try the file name as is */
if (DOSFS_GetFullName( name, TRUE, &full_name )) goto found;
/* Now remove the path */
if (name[0] && (name[1] == ':')) name += 2;
if ((p = strrchr( name, '\\' ))) name = p + 1;
if ((p = strrchr( name, '/' ))) name = p + 1;
if (!name[0]) goto not_found;
}
/* Now look for the file */
if (!DIR_SearchPath( NULL, name, NULL, &full_name, win32 )) goto not_found;
found:
TRACE(file, "found %s = %s\n",
full_name.long_name, full_name.short_name );
lstrcpyn32A( ofs->szPathName, full_name.short_name,
sizeof(ofs->szPathName) );
fileInUse = FILE_InUse(full_name.long_name,&oldMode);
if(fileInUse)
{
TRACE(file, "found another instance with mode 0x%02x\n",oldMode&0x70);
if (FILE_ShareDeny(mode,oldMode)) return HFILE_ERROR32;
}
if (mode & OF_SHARE_EXCLUSIVE)
/* Some InstallShield version uses OF_SHARE_EXCLUSIVE
on the file <tempdir>/_ins0432._mp to determine how
far installation has proceeded.
_ins0432._mp is an executable and while running the
application expects the open with OF_SHARE_ to fail*/
/* Probable FIXME:
As our loader closes the files after loading the executable,
we can't find the running executable with FILE_InUse.
Perhaps the loader should keep the file open.
Recheck against how Win handles that case */
{
char *last = strrchr(full_name.long_name,'/');
if (!last)
last = full_name.long_name - 1;
if (GetModuleHandle16(last+1))
{
TRACE(file,"Denying shared open for %s\n",full_name.long_name);
return HFILE_ERROR32;
}
}
if (mode & OF_DELETE)
{
if (unlink( full_name.long_name ) == -1) goto not_found;
TRACE(file, "(%s): OF_DELETE return = OK\n", name);
return 1;
}
unixMode=FILE_DOSToUnixMode(mode);
hFileRet = FILE_OpenUnixFile( full_name.long_name, unixMode );
if (hFileRet == HFILE_ERROR32) goto not_found;
/* we need to save the mode, but only if it is not in use yet*/
if( (!fileInUse) &&(file =FILE_GetFile(hFileRet)))
{
file->mode=mode;
FILE_ReleaseFile(file);
}
GetFileTime( hFileRet, NULL, NULL, &filetime );
FileTimeToDosDateTime( &filetime, &filedatetime[0], &filedatetime[1] );
if ((mode & OF_VERIFY) && (mode & OF_REOPEN))
{
if (memcmp( ofs->reserved, filedatetime, sizeof(ofs->reserved) ))
{
CloseHandle( hFileRet );
WARN(file, "(%s): OF_VERIFY failed\n", name );
/* FIXME: what error here? */
DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
goto error;
}
}
memcpy( ofs->reserved, filedatetime, sizeof(ofs->reserved) );
success: /* We get here if the open was successful */
TRACE(file, "(%s): OK, return = %d\n", name, hFileRet );
if (mode & OF_EXIST) /* Return the handle, but close it first */
CloseHandle( hFileRet );
return hFileRet;
not_found: /* We get here if the file does not exist */
WARN(file, "'%s' not found\n", name );
DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
/* fall through */
error: /* We get here if there was an error opening the file */
ofs->nErrCode = DOS_ExtendedError;
WARN(file, "(%s): return = HFILE_ERROR error= %d\n",
name,ofs->nErrCode );
return HFILE_ERROR32;
}
/***********************************************************************
* OpenFile16 (KERNEL.74)
*/
HFILE16 WINAPI OpenFile16( LPCSTR name, OFSTRUCT *ofs, UINT16 mode )
{
TRACE(file,"OpenFile16(%s,%i)\n", name, mode);
return HFILE32_TO_HFILE16(FILE_DoOpenFile( name, ofs, mode, FALSE ));
}
/***********************************************************************
* OpenFile32 (KERNEL32.396)
*/
HFILE32 WINAPI OpenFile32( LPCSTR name, OFSTRUCT *ofs, UINT32 mode )
{
return FILE_DoOpenFile( name, ofs, mode, TRUE );
}
/***********************************************************************
* _lclose16 (KERNEL.81)
*/
HFILE16 WINAPI _lclose16( HFILE16 hFile )
{
TRACE(file, "handle %d\n", hFile );
return CloseHandle( HFILE16_TO_HFILE32( hFile ) ) ? 0 : HFILE_ERROR16;
}
/***********************************************************************
* _lclose32 (KERNEL32.592)
*/
HFILE32 WINAPI _lclose32( HFILE32 hFile )
{
TRACE(file, "handle %d\n", hFile );
return CloseHandle( hFile ) ? 0 : HFILE_ERROR32;
}
/***********************************************************************
* WIN16_hread
*/
LONG WINAPI WIN16_hread( HFILE16 hFile, SEGPTR buffer, LONG count )
{
LONG maxlen;
TRACE(file, "%d %08lx %ld\n",
hFile, (DWORD)buffer, count );
/* Some programs pass a count larger than the allocated buffer */
maxlen = GetSelectorLimit( SELECTOROF(buffer) ) - OFFSETOF(buffer) + 1;
if (count > maxlen) count = maxlen;
return _lread32(HFILE16_TO_HFILE32(hFile), PTR_SEG_TO_LIN(buffer), count );
}
/***********************************************************************
* WIN16_lread
*/
UINT16 WINAPI WIN16_lread( HFILE16 hFile, SEGPTR buffer, UINT16 count )
{
return (UINT16)WIN16_hread( hFile, buffer, (LONG)count );
}
/***********************************************************************
* _lread32 (KERNEL32.596)
*/
UINT32 WINAPI _lread32( HFILE32 handle, LPVOID buffer, UINT32 count )
{
K32OBJ *ptr;
DWORD numWritten;
BOOL32 result = FALSE;
TRACE( file, "%d %p %d\n", handle, buffer, count);
if (!(ptr = HANDLE_GetObjPtr( PROCESS_Current(), handle,
K32OBJ_UNKNOWN, 0, NULL))) return -1;
if (K32OBJ_OPS(ptr)->read)
result = K32OBJ_OPS(ptr)->read(ptr, buffer, count, &numWritten, NULL);
K32OBJ_DecCount( ptr );
if (!result) return -1;
return (UINT32)numWritten;
}
/***********************************************************************
* _lread16 (KERNEL.82)
*/
UINT16 WINAPI _lread16( HFILE16 hFile, LPVOID buffer, UINT16 count )
{
return (UINT16)_lread32(HFILE16_TO_HFILE32(hFile), buffer, (LONG)count );
}
/***********************************************************************
* _lcreat16 (KERNEL.83)
*/
HFILE16 WINAPI _lcreat16( LPCSTR path, INT16 attr )
{
int mode = (attr & 1) ? 0444 : 0666;
TRACE(file, "%s %02x\n", path, attr );
return (HFILE16) HFILE32_TO_HFILE16(FILE_Create( path, mode, FALSE ));
}
/***********************************************************************
* _lcreat32 (KERNEL32.593)
*/
HFILE32 WINAPI _lcreat32( LPCSTR path, INT32 attr )
{
int mode = (attr & 1) ? 0444 : 0666;
TRACE(file, "%s %02x\n", path, attr );
return FILE_Create( path, mode, FALSE );
}
/***********************************************************************
* _lcreat_uniq (Not a Windows API)
*/
HFILE32 _lcreat_uniq( LPCSTR path, INT32 attr )
{
int mode = (attr & 1) ? 0444 : 0666;
TRACE(file, "%s %02x\n", path, attr );
return FILE_Create( path, mode, TRUE );
}
/***********************************************************************
* SetFilePointer (KERNEL32.492)
*/
DWORD WINAPI SetFilePointer( HFILE32 hFile, LONG distance, LONG *highword,
DWORD method )
{
FILE_OBJECT *file;
DWORD result = 0xffffffff;
if (highword && *highword)
{
FIXME(file, "64-bit offsets not supported yet\n");
SetLastError( ERROR_INVALID_PARAMETER );
return 0xffffffff;
}
TRACE(file, "handle %d offset %ld origin %ld\n",
hFile, distance, method );
if (!(file = FILE_GetFile( hFile ))) return 0xffffffff;
/* the pointer may be positioned before the start of the file;
no error is returned in that case,
but subsequent attempts at I/O will produce errors.
This is not allowed with Unix lseek(),
so we'll need some emulation here */
switch(method)
{
case FILE_CURRENT:
distance += file->pos; /* fall through */
case FILE_BEGIN:
if ((result = lseek(file->unix_handle, distance, SEEK_SET)) == -1)
{
if ((INT32)distance < 0)
file->pos = result = distance;
}
else
file->pos = result;
break;
case FILE_END:
if ((result = lseek(file->unix_handle, distance, SEEK_END)) == -1)
{
if ((INT32)distance < 0)
{
/* get EOF */
result = lseek(file->unix_handle, 0, SEEK_END);
/* return to the old pos, as the first lseek failed */
lseek(file->unix_handle, file->pos, SEEK_END);
file->pos = (result += distance);
}
else
ERR(file, "lseek: unknown error. Please report.\n");
}
else file->pos = result;
break;
default:
ERR(file, "Unknown origin %ld !\n", method);
}
if (result == -1)
FILE_SetDosError();
FILE_ReleaseFile( file );
return result;
}
/***********************************************************************
* _llseek16 (KERNEL.84)
*/
LONG WINAPI _llseek16( HFILE16 hFile, LONG lOffset, INT16 nOrigin )
{
return SetFilePointer( HFILE16_TO_HFILE32(hFile), lOffset, NULL, nOrigin );
}
/***********************************************************************
* _llseek32 (KERNEL32.594)
*/
LONG WINAPI _llseek32( HFILE32 hFile, LONG lOffset, INT32 nOrigin )
{
return SetFilePointer( hFile, lOffset, NULL, nOrigin );
}
/***********************************************************************
* _lopen16 (KERNEL.85)
*/
HFILE16 WINAPI _lopen16( LPCSTR path, INT16 mode )
{
return HFILE32_TO_HFILE16(_lopen32( path, mode ));
}
/***********************************************************************
* _lopen32 (KERNEL32.595)
*/
HFILE32 WINAPI _lopen32( LPCSTR path, INT32 mode )
{
INT32 unixMode;
TRACE(file, "('%s',%04x)\n", path, mode );
unixMode= FILE_DOSToUnixMode(mode);
return FILE_Open( path, unixMode , (mode & 0x70));
}
/***********************************************************************
* _lwrite16 (KERNEL.86)
*/
UINT16 WINAPI _lwrite16( HFILE16 hFile, LPCSTR buffer, UINT16 count )
{
return (UINT16)_hwrite32( HFILE16_TO_HFILE32(hFile), buffer, (LONG)count );
}
/***********************************************************************
* _lwrite32 (KERNEL.86)
*/
UINT32 WINAPI _lwrite32( HFILE32 hFile, LPCSTR buffer, UINT32 count )
{
return (UINT32)_hwrite32( hFile, buffer, (LONG)count );
}
/***********************************************************************
* _hread16 (KERNEL.349)
*/
LONG WINAPI _hread16( HFILE16 hFile, LPVOID buffer, LONG count)
{
return _lread32( HFILE16_TO_HFILE32(hFile), buffer, count );
}
/***********************************************************************
* _hread32 (KERNEL32.590)
*/
LONG WINAPI _hread32( HFILE32 hFile, LPVOID buffer, LONG count)
{
return _lread32( hFile, buffer, count );
}
/***********************************************************************
* _hwrite16 (KERNEL.350)
*/
LONG WINAPI _hwrite16( HFILE16 hFile, LPCSTR buffer, LONG count )
{
return _hwrite32( HFILE16_TO_HFILE32(hFile), buffer, count );
}
/***********************************************************************
* _hwrite32 (KERNEL32.591)
*
* experimenation yields that _lwrite:
* o truncates the file at the current position with
* a 0 len write
* o returns 0 on a 0 length write
* o works with console handles
*
*/
LONG WINAPI _hwrite32( HFILE32 handle, LPCSTR buffer, LONG count )
{
K32OBJ *ioptr;
DWORD result;
BOOL32 status = FALSE;
TRACE(file, "%d %p %ld\n", handle, buffer, count );
if (count == 0) { /* Expand or truncate at current position */
FILE_OBJECT *file = FILE_GetFile(handle);
if ( ftruncate(file->unix_handle,
lseek( file->unix_handle, 0, SEEK_CUR)) == 0 ) {
FILE_ReleaseFile(file);
return 0;
} else {
FILE_SetDosError();
FILE_ReleaseFile(file);
return HFILE_ERROR32;
}
}
if (!(ioptr = HANDLE_GetObjPtr( PROCESS_Current(), handle,
K32OBJ_UNKNOWN, 0, NULL )))
return HFILE_ERROR32;
if (K32OBJ_OPS(ioptr)->write)
status = K32OBJ_OPS(ioptr)->write(ioptr, buffer, count, &result, NULL);
K32OBJ_DecCount( ioptr );
if (!status) result = HFILE_ERROR32;
return result;
}
/***********************************************************************
* SetHandleCount16 (KERNEL.199)
*/
UINT16 WINAPI SetHandleCount16( UINT16 count )
{
HGLOBAL16 hPDB = GetCurrentPDB();
PDB *pdb = (PDB *)GlobalLock16( hPDB );
BYTE *files = PTR_SEG_TO_LIN( pdb->fileHandlesPtr );
TRACE(file, "(%d)\n", count );
if (count < 20) count = 20; /* No point in going below 20 */
else if (count > 254) count = 254;
if (count == 20)
{
if (pdb->nbFiles > 20)
{
memcpy( pdb->fileHandles, files, 20 );
GlobalFree16( pdb->hFileHandles );
pdb->fileHandlesPtr = (SEGPTR)MAKELONG( 0x18,
GlobalHandleToSel( hPDB ) );
pdb->hFileHandles = 0;
pdb->nbFiles = 20;
}
}
else /* More than 20, need a new file handles table */
{
BYTE *newfiles;
HGLOBAL16 newhandle = GlobalAlloc16( GMEM_MOVEABLE, count );
if (!newhandle)
{
DOS_ERROR( ER_OutOfMemory, EC_OutOfResource, SA_Abort, EL_Memory );
return pdb->nbFiles;
}
newfiles = (BYTE *)GlobalLock16( newhandle );
if (count > pdb->nbFiles)
{
memcpy( newfiles, files, pdb->nbFiles );
memset( newfiles + pdb->nbFiles, 0xff, count - pdb->nbFiles );
}
else memcpy( newfiles, files, count );
if (pdb->nbFiles > 20) GlobalFree16( pdb->hFileHandles );
pdb->fileHandlesPtr = WIN16_GlobalLock16( newhandle );
pdb->hFileHandles = newhandle;
pdb->nbFiles = count;
}
return pdb->nbFiles;
}
/*************************************************************************
* SetHandleCount32 (KERNEL32.494)
*/
UINT32 WINAPI SetHandleCount32( UINT32 count )
{
return MIN( 256, count );
}
/***********************************************************************
* FlushFileBuffers (KERNEL32.133)
*/
BOOL32 WINAPI FlushFileBuffers( HFILE32 hFile )
{
FILE_OBJECT *file;
BOOL32 ret;
TRACE(file, "(%d)\n", hFile );
if (!(file = FILE_GetFile( hFile ))) return FALSE;
if (fsync( file->unix_handle ) != -1) ret = TRUE;
else
{
FILE_SetDosError();
ret = FALSE;
}
FILE_ReleaseFile( file );
return ret;
}
/**************************************************************************
* SetEndOfFile (KERNEL32.483)
*/
BOOL32 WINAPI SetEndOfFile( HFILE32 hFile )
{
FILE_OBJECT *file;
BOOL32 ret = TRUE;
TRACE(file, "(%d)\n", hFile );
if (!(file = FILE_GetFile( hFile ))) return FALSE;
if (ftruncate( file->unix_handle,
lseek( file->unix_handle, 0, SEEK_CUR ) ))
{
FILE_SetDosError();
ret = FALSE;
}
FILE_ReleaseFile( file );
return ret;
}
/***********************************************************************
* DeleteFile16 (KERNEL.146)
*/
BOOL16 WINAPI DeleteFile16( LPCSTR path )
{
return DeleteFile32A( path );
}
/***********************************************************************
* DeleteFile32A (KERNEL32.71)
*/
BOOL32 WINAPI DeleteFile32A( LPCSTR path )
{
DOS_FULL_NAME full_name;
TRACE(file, "'%s'\n", path );
if (DOSFS_GetDevice( path ))
{
WARN(file, "cannot remove DOS device '%s'!\n", path);
DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
return FALSE;
}
if (!DOSFS_GetFullName( path, TRUE, &full_name )) return FALSE;
if (unlink( full_name.long_name ) == -1)
{
FILE_SetDosError();
return FALSE;
}
return TRUE;
}
/***********************************************************************
* DeleteFile32W (KERNEL32.72)
*/
BOOL32 WINAPI DeleteFile32W( LPCWSTR path )
{
LPSTR xpath = HEAP_strdupWtoA( GetProcessHeap(), 0, path );
BOOL32 ret = DeleteFile32A( xpath );
HeapFree( GetProcessHeap(), 0, xpath );
return ret;
}
/***********************************************************************
* FILE_SetFileType
*/
BOOL32 FILE_SetFileType( HFILE32 hFile, DWORD type )
{
FILE_OBJECT *file = FILE_GetFile( hFile );
if (!file) return FALSE;
file->type = type;
FILE_ReleaseFile( file );
return TRUE;
}
/***********************************************************************
* FILE_mmap
*/
LPVOID FILE_mmap( HFILE32 hFile, LPVOID start,
DWORD size_high, DWORD size_low,
DWORD offset_high, DWORD offset_low,
int prot, int flags )
{
LPVOID ret;
FILE_OBJECT *file = FILE_GetFile( hFile );
if (!file) return (LPVOID)-1;
ret = FILE_dommap( file, start, size_high, size_low,
offset_high, offset_low, prot, flags );
FILE_ReleaseFile( file );
return ret;
}
/***********************************************************************
* FILE_dommap
*/
LPVOID FILE_dommap( FILE_OBJECT *file, LPVOID start,
DWORD size_high, DWORD size_low,
DWORD offset_high, DWORD offset_low,
int prot, int flags )
{
int fd = -1;
int pos;
LPVOID ret;
if (size_high || offset_high)
FIXME(file, "offsets larger than 4Gb not supported\n");
if (!file)
{
#ifdef MAP_ANON
flags |= MAP_ANON;
#else
static int fdzero = -1;
if (fdzero == -1)
{
if ((fdzero = open( "/dev/zero", O_RDONLY )) == -1)
{
perror( "/dev/zero: open" );
exit(1);
}
}
fd = fdzero;
#endif /* MAP_ANON */
/* Linux EINVAL's on us if we don't pass MAP_PRIVATE to an anon mmap */
#ifdef MAP_SHARED
flags &= ~MAP_SHARED;
#endif
#ifdef MAP_PRIVATE
flags |= MAP_PRIVATE;
#endif
}
else fd = file->unix_handle;
if ((ret = mmap( start, size_low, prot,
flags, fd, offset_low )) != (LPVOID)-1)
return ret;
/* mmap() failed; if this is because the file offset is not */
/* page-aligned (EINVAL), or because the underlying filesystem */
/* does not support mmap() (ENOEXEC), we do it by hand. */
if (!file) return ret;
if ((errno != ENOEXEC) && (errno != EINVAL)) return ret;
if (prot & PROT_WRITE)
{
/* We cannot fake shared write mappings */
#ifdef MAP_SHARED
if (flags & MAP_SHARED) return ret;
#endif
#ifdef MAP_PRIVATE
if (!(flags & MAP_PRIVATE)) return ret;
#endif
}
/* printf( "FILE_mmap: mmap failed (%d), faking it\n", errno );*/
/* Reserve the memory with an anonymous mmap */
ret = FILE_dommap( NULL, start, size_high, size_low, 0, 0,
PROT_READ | PROT_WRITE, flags );
if (ret == (LPVOID)-1) return ret;
/* Now read in the file */
if ((pos = lseek( fd, offset_low, SEEK_SET )) == -1)
{
FILE_munmap( ret, size_high, size_low );
return (LPVOID)-1;
}
read( fd, ret, size_low );
lseek( fd, pos, SEEK_SET ); /* Restore the file pointer */
mprotect( ret, size_low, prot ); /* Set the right protection */
return ret;
}
/***********************************************************************
* FILE_munmap
*/
int FILE_munmap( LPVOID start, DWORD size_high, DWORD size_low )
{
if (size_high)
FIXME(file, "offsets larger than 4Gb not supported\n");
return munmap( start, size_low );
}
/***********************************************************************
* GetFileType (KERNEL32.222)
*/
DWORD WINAPI GetFileType( HFILE32 hFile )
{
FILE_OBJECT *file = FILE_GetFile(hFile);
if (!file) return FILE_TYPE_UNKNOWN; /* FIXME: correct? */
FILE_ReleaseFile( file );
return file->type;
}
/**************************************************************************
* MoveFileEx32A (KERNEL32.???)
*/
BOOL32 WINAPI MoveFileEx32A( LPCSTR fn1, LPCSTR fn2, DWORD flag )
{
DOS_FULL_NAME full_name1, full_name2;
int mode=0; /* mode == 1: use copy */
TRACE(file, "(%s,%s,%04lx)\n", fn1, fn2, flag);
if (!DOSFS_GetFullName( fn1, TRUE, &full_name1 )) return FALSE;
if (fn2) { /* !fn2 means delete fn1 */
if (!DOSFS_GetFullName( fn2, FALSE, &full_name2 )) return FALSE;
/* Source name and target path are valid */
if ( full_name1.drive != full_name2.drive)
/* use copy, if allowed */
if (!(flag & MOVEFILE_COPY_ALLOWED)) {
/* FIXME: Use right error code */
DOS_ERROR( ER_FileExists, EC_Exists, SA_Abort, EL_Disk );
return FALSE;
}
else mode =1;
if (DOSFS_GetFullName( fn2, TRUE, &full_name2 ))
/* target exists, check if we may overwrite */
if (!(flag & MOVEFILE_REPLACE_EXISTING)) {
/* FIXME: Use right error code */
DOS_ERROR( ER_AccessDenied, EC_AccessDenied, SA_Abort, EL_Disk );
return FALSE;
}
}
else /* fn2 == NULL means delete source */
if (flag & MOVEFILE_DELAY_UNTIL_REBOOT) {
if (flag & MOVEFILE_COPY_ALLOWED) {
WARN(file, "Illegal flag\n");
DOS_ERROR( ER_GeneralFailure, EC_SystemFailure, SA_Abort,
EL_Unknown );
return FALSE;
}
/* FIXME: (bon@elektron.ikp.physik.th-darmstadt.de 970706)
Perhaps we should queue these command and execute it
when exiting... What about using on_exit(2)
*/
FIXME(file, "Please delete file '%s' when Wine has finished\n",
full_name1.long_name);
return TRUE;
}
else if (unlink( full_name1.long_name ) == -1)
{
FILE_SetDosError();
return FALSE;
}
else return TRUE; /* successfully deleted */
if (flag & MOVEFILE_DELAY_UNTIL_REBOOT) {
/* FIXME: (bon@elektron.ikp.physik.th-darmstadt.de 970706)
Perhaps we should queue these command and execute it
when exiting... What about using on_exit(2)
*/
FIXME(file,"Please move existing file '%s' to file '%s'"
"when Wine has finished\n",
full_name1.long_name, full_name2.long_name);
return TRUE;
}
if (!mode) /* move the file */
if (rename( full_name1.long_name, full_name2.long_name ) == -1)
{
FILE_SetDosError();
return FALSE;
}
else return TRUE;
else /* copy File */
return CopyFile32A(fn1, fn2, (!(flag & MOVEFILE_REPLACE_EXISTING)));
}
/**************************************************************************
* MoveFileEx32W (KERNEL32.???)
*/
BOOL32 WINAPI MoveFileEx32W( LPCWSTR fn1, LPCWSTR fn2, DWORD flag )
{
LPSTR afn1 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn1 );
LPSTR afn2 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn2 );
BOOL32 res = MoveFileEx32A( afn1, afn2, flag );
HeapFree( GetProcessHeap(), 0, afn1 );
HeapFree( GetProcessHeap(), 0, afn2 );
return res;
}
/**************************************************************************
* MoveFile32A (KERNEL32.387)
*
* Move file or directory
*/
BOOL32 WINAPI MoveFile32A( LPCSTR fn1, LPCSTR fn2 )
{
DOS_FULL_NAME full_name1, full_name2;
struct stat fstat;
TRACE(file, "(%s,%s)\n", fn1, fn2 );
if (!DOSFS_GetFullName( fn1, TRUE, &full_name1 )) return FALSE;
if (DOSFS_GetFullName( fn2, TRUE, &full_name2 ))
/* The new name must not already exist */
return FALSE;
if (!DOSFS_GetFullName( fn2, FALSE, &full_name2 )) return FALSE;
if (full_name1.drive == full_name2.drive) /* move */
if (rename( full_name1.long_name, full_name2.long_name ) == -1)
{
FILE_SetDosError();
return FALSE;
}
else return TRUE;
else /*copy */ {
if (stat( full_name1.long_name, &fstat ))
{
WARN(file, "Invalid source file %s\n",
full_name1.long_name);
FILE_SetDosError();
return FALSE;
}
if (S_ISDIR(fstat.st_mode)) {
/* No Move for directories across file systems */
/* FIXME: Use right error code */
DOS_ERROR( ER_GeneralFailure, EC_SystemFailure, SA_Abort,
EL_Unknown );
return FALSE;
}
else
return CopyFile32A(fn1, fn2, TRUE); /*fail, if exist */
}
}
/**************************************************************************
* MoveFile32W (KERNEL32.390)
*/
BOOL32 WINAPI MoveFile32W( LPCWSTR fn1, LPCWSTR fn2 )
{
LPSTR afn1 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn1 );
LPSTR afn2 = HEAP_strdupWtoA( GetProcessHeap(), 0, fn2 );
BOOL32 res = MoveFile32A( afn1, afn2 );
HeapFree( GetProcessHeap(), 0, afn1 );
HeapFree( GetProcessHeap(), 0, afn2 );
return res;
}
/**************************************************************************
* CopyFile32A (KERNEL32.36)
*/
BOOL32 WINAPI CopyFile32A( LPCSTR source, LPCSTR dest, BOOL32 fail_if_exists )
{
HFILE32 h1, h2;
BY_HANDLE_FILE_INFORMATION info;
UINT32 count;
BOOL32 ret = FALSE;
int mode;
char buffer[2048];
if ((h1 = _lopen32( source, OF_READ )) == HFILE_ERROR32) return FALSE;
if (!GetFileInformationByHandle( h1, &info ))
{
CloseHandle( h1 );
return FALSE;
}
mode = (info.dwFileAttributes & FILE_ATTRIBUTE_READONLY) ? 0444 : 0666;
if ((h2 = FILE_Create( dest, mode, fail_if_exists )) == HFILE_ERROR32)
{
CloseHandle( h1 );
return FALSE;
}
while ((count = _lread32( h1, buffer, sizeof(buffer) )) > 0)
{
char *p = buffer;
while (count > 0)
{
INT32 res = _lwrite32( h2, p, count );
if (res <= 0) goto done;
p += res;
count -= res;
}
}
ret = TRUE;
done:
CloseHandle( h1 );
CloseHandle( h2 );
return ret;
}
/**************************************************************************
* CopyFile32W (KERNEL32.37)
*/
BOOL32 WINAPI CopyFile32W( LPCWSTR source, LPCWSTR dest, BOOL32 fail_if_exists)
{
LPSTR sourceA = HEAP_strdupWtoA( GetProcessHeap(), 0, source );
LPSTR destA = HEAP_strdupWtoA( GetProcessHeap(), 0, dest );
BOOL32 ret = CopyFile32A( sourceA, destA, fail_if_exists );
HeapFree( GetProcessHeap(), 0, sourceA );
HeapFree( GetProcessHeap(), 0, destA );
return ret;
}
/***********************************************************************
* SetFileTime (KERNEL32.650)
*/
BOOL32 WINAPI SetFileTime( HFILE32 hFile,
const FILETIME *lpCreationTime,
const FILETIME *lpLastAccessTime,
const FILETIME *lpLastWriteTime )
{
FILE_OBJECT *file = FILE_GetFile(hFile);
struct utimbuf utimbuf;
if (!file) return FILE_TYPE_UNKNOWN; /* FIXME: correct? */
TRACE(file,"('%s',%p,%p,%p)\n",
file->unix_name,
lpCreationTime,
lpLastAccessTime,
lpLastWriteTime
);
if (lpLastAccessTime)
utimbuf.actime = DOSFS_FileTimeToUnixTime(lpLastAccessTime, NULL);
else
utimbuf.actime = 0; /* FIXME */
if (lpLastWriteTime)
utimbuf.modtime = DOSFS_FileTimeToUnixTime(lpLastWriteTime, NULL);
else
utimbuf.modtime = 0; /* FIXME */
if (-1==utime(file->unix_name,&utimbuf))
{
MSG("Couldn't set the time for file '%s'. Insufficient permissions !?\n", file->unix_name);
FILE_ReleaseFile( file );
FILE_SetDosError();
return FALSE;
}
FILE_ReleaseFile( file );
return TRUE;
}
/* Locks need to be mirrored because unix file locking is based
* on the pid. Inside of wine there can be multiple WINE processes
* that share the same unix pid.
* Read's and writes should check these locks also - not sure
* how critical that is at this point (FIXME).
*/
static BOOL32 DOS_AddLock(FILE_OBJECT *file, struct flock *f)
{
DOS_FILE_LOCK *curr;
DWORD processId;
processId = GetCurrentProcessId();
/* check if lock overlaps a current lock for the same file */
for (curr = locks; curr; curr = curr->next) {
if (strcmp(curr->unix_name, file->unix_name) == 0) {
if ((f->l_start == curr->base) && (f->l_len == curr->len))
return TRUE;/* region is identic */
if ((f->l_start < (curr->base + curr->len)) &&
((f->l_start + f->l_len) > curr->base)) {
/* region overlaps */
return FALSE;
}
}
}
curr = HeapAlloc( SystemHeap, 0, sizeof(DOS_FILE_LOCK) );
curr->processId = GetCurrentProcessId();
curr->base = f->l_start;
curr->len = f->l_len;
curr->unix_name = HEAP_strdupA( SystemHeap, 0, file->unix_name);
curr->next = locks;
curr->dos_file = file;
locks = curr;
return TRUE;
}
static void DOS_RemoveFileLocks(FILE_OBJECT *file)
{
DWORD processId;
DOS_FILE_LOCK **curr;
DOS_FILE_LOCK *rem;
processId = GetCurrentProcessId();
curr = &locks;
while (*curr) {
if ((*curr)->dos_file == file) {
rem = *curr;
*curr = (*curr)->next;
HeapFree( SystemHeap, 0, rem->unix_name );
HeapFree( SystemHeap, 0, rem );
}
else
curr = &(*curr)->next;
}
}
static BOOL32 DOS_RemoveLock(FILE_OBJECT *file, struct flock *f)
{
DWORD processId;
DOS_FILE_LOCK **curr;
DOS_FILE_LOCK *rem;
processId = GetCurrentProcessId();
for (curr = &locks; *curr; curr = &(*curr)->next) {
if ((*curr)->processId == processId &&
(*curr)->dos_file == file &&
(*curr)->base == f->l_start &&
(*curr)->len == f->l_len) {
/* this is the same lock */
rem = *curr;
*curr = (*curr)->next;
HeapFree( SystemHeap, 0, rem->unix_name );
HeapFree( SystemHeap, 0, rem );
return TRUE;
}
}
/* no matching lock found */
return FALSE;
}
/**************************************************************************
* LockFile (KERNEL32.511)
*/
BOOL32 WINAPI LockFile(
HFILE32 hFile,DWORD dwFileOffsetLow,DWORD dwFileOffsetHigh,
DWORD nNumberOfBytesToLockLow,DWORD nNumberOfBytesToLockHigh )
{
struct flock f;
FILE_OBJECT *file;
TRACE(file, "handle %d offsetlow=%ld offsethigh=%ld nbyteslow=%ld nbyteshigh=%ld\n",
hFile, dwFileOffsetLow, dwFileOffsetHigh,
nNumberOfBytesToLockLow, nNumberOfBytesToLockHigh);
if (dwFileOffsetHigh || nNumberOfBytesToLockHigh) {
FIXME(file, "Unimplemented bytes > 32bits\n");
return FALSE;
}
f.l_start = dwFileOffsetLow;
f.l_len = nNumberOfBytesToLockLow;
f.l_whence = SEEK_SET;
f.l_pid = 0;
f.l_type = F_WRLCK;
if (!(file = FILE_GetFile(hFile))) return FALSE;
/* shadow locks internally */
if (!DOS_AddLock(file, &f)) {
DOS_ERROR( ER_LockViolation, EC_AccessDenied, SA_Ignore, EL_Disk );
return FALSE;
}
/* FIXME: Unix locking commented out for now, doesn't work with Excel */
#ifdef USE_UNIX_LOCKS
if (fcntl(file->unix_handle, F_SETLK, &f) == -1) {
if (errno == EACCES || errno == EAGAIN) {
DOS_ERROR( ER_LockViolation, EC_AccessDenied, SA_Ignore, EL_Disk );
}
else {
FILE_SetDosError();
}
/* remove our internal copy of the lock */
DOS_RemoveLock(file, &f);
return FALSE;
}
#endif
return TRUE;
}
/**************************************************************************
* UnlockFile (KERNEL32.703)
*/
BOOL32 WINAPI UnlockFile(
HFILE32 hFile,DWORD dwFileOffsetLow,DWORD dwFileOffsetHigh,
DWORD nNumberOfBytesToUnlockLow,DWORD nNumberOfBytesToUnlockHigh )
{
FILE_OBJECT *file;
struct flock f;
TRACE(file, "handle %d offsetlow=%ld offsethigh=%ld nbyteslow=%ld nbyteshigh=%ld\n",
hFile, dwFileOffsetLow, dwFileOffsetHigh,
nNumberOfBytesToUnlockLow, nNumberOfBytesToUnlockHigh);
if (dwFileOffsetHigh || nNumberOfBytesToUnlockHigh) {
WARN(file, "Unimplemented bytes > 32bits\n");
return FALSE;
}
f.l_start = dwFileOffsetLow;
f.l_len = nNumberOfBytesToUnlockLow;
f.l_whence = SEEK_SET;
f.l_pid = 0;
f.l_type = F_UNLCK;
if (!(file = FILE_GetFile(hFile))) return FALSE;
DOS_RemoveLock(file, &f); /* ok if fails - may be another wine */
/* FIXME: Unix locking commented out for now, doesn't work with Excel */
#ifdef USE_UNIX_LOCKS
if (fcntl(file->unix_handle, F_SETLK, &f) == -1) {
FILE_SetDosError();
return FALSE;
}
#endif
return TRUE;
}
/**************************************************************************
* GetFileAttributesEx32A [KERNEL32.874]
*/
BOOL32 WINAPI GetFileAttributesEx32A(
LPCSTR lpFileName, GET_FILEEX_INFO_LEVELS fInfoLevelId,
LPVOID lpFileInformation)
{
DOS_FULL_NAME full_name;
BY_HANDLE_FILE_INFORMATION info;
if (lpFileName == NULL) return FALSE;
if (lpFileInformation == NULL) return FALSE;
if (fInfoLevelId == GetFileExInfoStandard) {
LPWIN32_FILE_ATTRIBUTE_DATA lpFad =
(LPWIN32_FILE_ATTRIBUTE_DATA) lpFileInformation;
if (!DOSFS_GetFullName( lpFileName, TRUE, &full_name )) return FALSE;
if (!FILE_Stat( full_name.long_name, &info )) return FALSE;
lpFad->dwFileAttributes = info.dwFileAttributes;
lpFad->ftCreationTime = info.ftCreationTime;
lpFad->ftLastAccessTime = info.ftLastAccessTime;
lpFad->ftLastWriteTime = info.ftLastWriteTime;
lpFad->nFileSizeHigh = info.nFileSizeHigh;
lpFad->nFileSizeLow = info.nFileSizeLow;
}
else {
FIXME (file, "invalid info level %d!\n", fInfoLevelId);
return FALSE;
}
return TRUE;
}
/**************************************************************************
* GetFileAttributesEx32W [KERNEL32.875]
*/
BOOL32 WINAPI GetFileAttributesEx32W(
LPCWSTR lpFileName, GET_FILEEX_INFO_LEVELS fInfoLevelId,
LPVOID lpFileInformation)
{
LPSTR nameA = HEAP_strdupWtoA( GetProcessHeap(), 0, lpFileName );
BOOL32 res =
GetFileAttributesEx32A( nameA, fInfoLevelId, lpFileInformation);
HeapFree( GetProcessHeap(), 0, nameA );
return res;
}
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