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Sweden-Number/win32/file.c

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/*
* Win32 kernel functions
*
* Copyright 1995 Martin von Loewis, Sven Verdoolaege, and Cameron Heide
*/
#include <errno.h>
#include <sys/errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <string.h>
#include <time.h>
#include "windows.h"
#include "winbase.h"
#include "winerror.h"
#include "file.h"
#include "device.h"
#include "process.h"
#include "heap.h"
#include "debug.h"
DWORD ErrnoToLastError(int errno_num);
static int TranslateCreationFlags(DWORD create_flags);
static int TranslateAccessFlags(DWORD access_flags);
static int TranslateShareFlags(DWORD share_flags);
/***********************************************************************
* WriteFile (KERNEL32.578)
*/
BOOL32 WINAPI WriteFile(HANDLE32 hFile, LPCVOID lpBuffer,
DWORD numberOfBytesToWrite,
LPDWORD numberOfBytesWritten, LPOVERLAPPED lpOverlapped)
{
K32OBJ *ioptr;
BOOL32 status = FALSE;
TRACE(file, "%d %p %ld\n", hFile, lpBuffer,
numberOfBytesToWrite);
if (!(ioptr = HANDLE_GetObjPtr( PROCESS_Current(), hFile,
K32OBJ_UNKNOWN, 0, NULL )))
return HFILE_ERROR32;
if (K32OBJ_OPS(ioptr)->write)
status = K32OBJ_OPS(ioptr)->write(ioptr, lpBuffer, numberOfBytesToWrite,
numberOfBytesWritten, lpOverlapped);
K32OBJ_DecCount( ioptr );
return status;
}
/***********************************************************************
* ReadFile (KERNEL32.428)
*/
BOOL32 WINAPI ReadFile(HANDLE32 hFile, LPVOID lpBuffer, DWORD numberOfBytesToRead,
LPDWORD numberOfBytesRead, LPOVERLAPPED lpOverlapped)
{
K32OBJ *ioptr;
BOOL32 status = FALSE;
TRACE(file, "%d %p %ld\n", hFile, lpBuffer,
numberOfBytesToRead);
if (!(ioptr = HANDLE_GetObjPtr( PROCESS_Current(), hFile,
K32OBJ_UNKNOWN, 0, NULL )))
return HFILE_ERROR32;
if (K32OBJ_OPS(ioptr)->read)
status = K32OBJ_OPS(ioptr)->read(ioptr, lpBuffer, numberOfBytesToRead,
numberOfBytesRead, lpOverlapped);
K32OBJ_DecCount( ioptr );
return status;
}
/***********************************************************************
* ReadFileEx (KERNEL32.)
*/
typedef
VOID
(CALLBACK *LPOVERLAPPED_COMPLETION_ROUTINE)(
DWORD dwErrorCode,
DWORD dwNumberOfBytesTransfered,
LPOVERLAPPED lpOverlapped
);
BOOL32 WINAPI ReadFileEx(HFILE32 hFile, LPVOID lpBuffer, DWORD numtoread,
LPOVERLAPPED lpOverlapped,
LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
{
FIXME(file, "file %d to buf %p num %ld %p func %p stub\n",
hFile, lpBuffer, numtoread, lpOverlapped, lpCompletionRoutine);
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return 0;
}
/*************************************************************************
* CreateFile32A [KERNEL32.45] Creates or opens a file or other object
*
* Creates or opens an object, and returns a handle that can be used to
* access that object.
*
* PARAMS
*
* filename [I] pointer to filename to be accessed
* access [I] access mode requested
* sharing [I] share mode
* security [I] pointer to security attributes
* creation [I] ?
* attributes [I] ?
* template [I] handle to file with attributes to copy
*
* RETURNS
* Success: Open handle to specified file
* Failure: INVALID_HANDLE_VALUE
*
* NOTES
* Should call SetLastError() on failure.
*
* BUGS
*
* Doesn't support character devices, pipes, template files, or a
* lot of the 'attributes' flags yet.
*/
HFILE32 WINAPI CreateFile32A(LPCSTR filename, DWORD access, DWORD sharing,
LPSECURITY_ATTRIBUTES security, DWORD creation,
DWORD attributes, HANDLE32 template)
{
int access_flags, create_flags, share_flags;
HFILE32 to_dup = HFILE_ERROR32; /* handle to dup */
/* Translate the various flags to Unix-style.
*/
access_flags = TranslateAccessFlags(access);
create_flags = TranslateCreationFlags(creation);
share_flags = TranslateShareFlags(sharing);
if(template)
FIXME(file, "template handles not supported.\n");
if(!filename)
return HFILE_ERROR32;
/* If the name starts with '\\?\' or '\\.\', ignore the first 4 chars.
*/
if(!strncmp(filename, "\\\\?\\", 4) || !strncmp(filename, "\\\\.\\", 4))
{
if (filename[2] == '.')
return DEVICE_Open( filename+4, access_flags | create_flags );
filename += 4;
if (!strncmp(filename, "UNC", 3))
{
FIXME(file, "UNC names not supported.\n");
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return HFILE_ERROR32;
}
}
/* If the name still starts with '\\', it's a UNC name.
*/
if(!strncmp(filename, "\\\\", 2))
{
FIXME(file, "UNC names not supported.\n");
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return HFILE_ERROR32;
}
/* If the name is either CONIN$ or CONOUT$, give them duplicated stdin
* or stdout, respectively.
*/
if(!strcmp(filename, "CONIN$"))
to_dup = GetStdHandle( STD_INPUT_HANDLE );
else if(!strcmp(filename, "CONOUT$"))
to_dup = GetStdHandle( STD_OUTPUT_HANDLE );
if(to_dup != HFILE_ERROR32)
{
HFILE32 handle;
if (!DuplicateHandle( GetCurrentProcess(), to_dup, GetCurrentProcess(),
&handle, access, FALSE, 0 ))
handle = HFILE_ERROR32;
return handle;
}
return FILE_Open( filename, access_flags | create_flags,share_flags );
}
/*************************************************************************
* CreateFile32W (KERNEL32.48)
*/
HFILE32 WINAPI CreateFile32W(LPCWSTR filename, DWORD access, DWORD sharing,
LPSECURITY_ATTRIBUTES security, DWORD creation,
DWORD attributes, HANDLE32 template)
{
LPSTR afn = HEAP_strdupWtoA( GetProcessHeap(), 0, filename );
HFILE32 res = CreateFile32A( afn, access, sharing, security, creation,
attributes, template );
HeapFree( GetProcessHeap(), 0, afn );
return res;
}
static int TranslateAccessFlags(DWORD access_flags)
{
int rc = 0;
switch(access_flags)
{
case GENERIC_READ:
rc = O_RDONLY;
break;
case GENERIC_WRITE:
rc = O_WRONLY;
break;
case (GENERIC_READ | GENERIC_WRITE):
rc = O_RDWR;
break;
}
return rc;
}
static int TranslateCreationFlags(DWORD create_flags)
{
int rc = 0;
switch(create_flags)
{
case CREATE_NEW:
rc = O_CREAT | O_EXCL;
break;
case CREATE_ALWAYS:
rc = O_CREAT | O_TRUNC;
break;
case OPEN_EXISTING:
rc = 0;
break;
case OPEN_ALWAYS:
rc = O_CREAT;
break;
case TRUNCATE_EXISTING:
rc = O_TRUNC;
break;
}
return rc;
}
static int TranslateShareFlags(DWORD share_flags)
/*
OPEN_SHARE_DENYNONE FILE_SHARE_READ | FILE_SHARE_WRITE
OPEN_SHARE_DENYREAD FILE_SHARE_WRITE
OPEN_SHARE_DENYREADWRITE 0
OPEN_SHARE_DENYWRITE FILE_SHARE_READ
*/
{
switch(share_flags)
{
case FILE_SHARE_READ | FILE_SHARE_WRITE:
return OF_SHARE_DENY_NONE;
case FILE_SHARE_WRITE:
return OF_SHARE_DENY_READ;
case FILE_SHARE_READ:
return OF_SHARE_DENY_WRITE;
case 0:
return OF_SHARE_EXCLUSIVE;
default:
}
FIXME(file,"unknown sharing flags 0x%04lx\n",share_flags);
return OF_SHARE_EXCLUSIVE;
}
/**************************************************************************
* SetFileAttributes16 (KERNEL.421)
*/
BOOL16 WINAPI SetFileAttributes16( LPCSTR lpFileName, DWORD attributes )
{
return SetFileAttributes32A( lpFileName, attributes );
}
/**************************************************************************
* SetFileAttributes32A (KERNEL32.490)
*/
BOOL32 WINAPI SetFileAttributes32A(LPCSTR lpFileName, DWORD attributes)
{
struct stat buf;
DOS_FULL_NAME full_name;
if (!DOSFS_GetFullName( lpFileName, TRUE, &full_name ))
return FALSE;
TRACE(file,"(%s,%lx)\n",lpFileName,attributes);
if (attributes & FILE_ATTRIBUTE_NORMAL) {
attributes &= ~FILE_ATTRIBUTE_NORMAL;
if (attributes)
FIXME(file,"(%s):%lx illegal combination with FILE_ATTRIBUTE_NORMAL.\n",
lpFileName,attributes);
}
if(stat(full_name.long_name,&buf)==-1)
{
SetLastError(ErrnoToLastError(errno));
return FALSE;
}
if (attributes & FILE_ATTRIBUTE_READONLY)
{
buf.st_mode &= ~0222; /* octal!, clear write permission bits */
attributes &= ~FILE_ATTRIBUTE_READONLY;
}
attributes &= ~(FILE_ATTRIBUTE_ARCHIVE|FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_SYSTEM);
if (attributes)
FIXME(file,"(%s):%lx attribute(s) not implemented.\n",
lpFileName,attributes);
if (-1==chmod(full_name.long_name,buf.st_mode))
{
SetLastError(ErrnoToLastError(errno));
return FALSE;
}
return TRUE;
}
/**************************************************************************
* SetFileAttributes32W (KERNEL32.491)
*/
BOOL32 WINAPI SetFileAttributes32W(LPCWSTR lpFileName, DWORD attributes)
{
LPSTR afn = HEAP_strdupWtoA( GetProcessHeap(), 0, lpFileName );
BOOL32 res = SetFileAttributes32A( afn, attributes );
HeapFree( GetProcessHeap(), 0, afn );
return res;
}
/**************************************************************************
* SetFileApisToOEM (KERNEL32.645)
*/
VOID WINAPI SetFileApisToOEM(void)
{
/*FIXME(file,"(): stub!\n");*/
}
/**************************************************************************
* SetFileApisToANSI (KERNEL32.644)
*/
VOID WINAPI SetFileApisToANSI(void)
{
/*FIXME(file,"(): stub\n");*/
}
/******************************************************************************
* AreFileApisANSI [KERNEL32.105] Determines if file functions are using ANSI
*
* RETURNS
* TRUE: Set of file functions is using ANSI code page
* FALSE: Set of file functions is using OEM code page
*/
BOOL32 WINAPI AreFileApisANSI(void)
{
FIXME(file,"(void): stub\n");
return TRUE;
}
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