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Sweden-Number/msdos/int21.c

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/*
* DOS interrupt 21h handler
*/
#include "config.h"
#include <time.h>
#include <fcntl.h>
#include <errno.h>
#include <stdlib.h>
#ifdef HAVE_SYS_FILE_H
# include <sys/file.h>
#endif
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <utime.h>
#include <ctype.h>
#include "windef.h"
#include "winbase.h"
#include "ntddk.h"
#include "wingdi.h"
#include "winuser.h" /* SW_NORMAL */
#include "wine/winbase16.h"
#include "winerror.h"
#include "drive.h"
#include "file.h"
#include "heap.h"
#include "msdos.h"
#include "options.h"
#include "miscemu.h"
#include "task.h"
#include "dosexe.h"
#include "callback.h"
#include "debugtools.h"
#include "console.h"
DEFAULT_DEBUG_CHANNEL(int21);
#if defined(__svr4__) || defined(_SCO_DS)
/* SVR4 DOESNT do locking the same way must implement properly */
#define LOCK_EX 0
#define LOCK_SH 1
#define LOCK_NB 8
#endif
#define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
/* Define the drive parameter block, as used by int21/1F
* and int21/32. This table can be accessed through the
* global 'dpb' pointer, which points into the local dos
* heap.
*/
struct DPB
{
BYTE drive_num; /* 0=A, etc. */
BYTE unit_num; /* Drive's unit number (?) */
WORD sector_size; /* Sector size in bytes */
BYTE high_sector; /* Highest sector in a cluster */
BYTE shift; /* Shift count (?) */
WORD reserved; /* Number of reserved sectors at start */
BYTE num_FAT; /* Number of FATs */
WORD dir_entries; /* Number of root dir entries */
WORD first_data; /* First data sector */
WORD high_cluster; /* Highest cluster number */
WORD sectors_in_FAT; /* Number of sectors per FAT */
WORD start_dir; /* Starting sector of first dir */
DWORD driver_head; /* Address of device driver header (?) */
BYTE media_ID; /* Media ID */
BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
DWORD next; /* Pointer to next DPB in list */
WORD free_search; /* Free cluster search start */
WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
};
struct EDPB /* FAT32 extended Drive Parameter Block */
{ /* from Ralf Brown's Interrupt List */
struct DPB dpb; /* first 24 bytes = original DPB */
BYTE edpb_flags; /* undocumented/unknown flags */
DWORD next_edpb; /* pointer to next EDPB */
WORD free_cluster; /* cluster to start search for free space on write, typically
the last cluster allocated */
WORD clusters_free; /* number of free clusters on drive or FFFF = unknown */
WORD clusters_free_hi; /* hiword of clusters_free */
WORD mirroring_flags; /* mirroring flags: bit 7 set = do not mirror active FAT */
/* bits 0-3 = 0-based number of the active FAT */
WORD info_sector; /* sector number of file system info sector, or FFFF for none */
WORD spare_boot_sector; /* sector number of backup boot sector, or FFFF for none */
DWORD first_cluster; /* sector number of the first cluster */
DWORD max_cluster; /* sector number of the last cluster */
DWORD fat_clusters; /* number of clusters occupied by FAT */
DWORD root_cluster; /* cluster number of start of root directory */
DWORD free_cluster2; /* same as free_cluster: cluster at which to start
search for free space when writing */
};
WORD CodePage = 437;
DWORD dpbsegptr;
struct DosHeap {
BYTE InDosFlag;
BYTE mediaID;
BYTE biosdate[8];
struct DPB dpb;
BYTE DummyDBCSLeadTable[6];
};
static struct DosHeap *heap;
static WORD DosHeapHandle;
extern char TempDirectory[];
static BOOL INT21_CreateHeap(void)
{
if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
{
WARN("Out of memory\n");
return FALSE;
}
heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
dpbsegptr = MAKESEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
heap->InDosFlag = 0;
strcpy(heap->biosdate, "01/01/80");
memset(heap->DummyDBCSLeadTable, 0, 6);
return TRUE;
}
static BYTE *GetCurrentDTA( CONTEXT86 *context )
{
TDB *pTask = TASK_GetCurrent();
/* FIXME: This assumes DTA was set correctly! */
return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
(DWORD)OFFSETOF(pTask->dta) );
}
void CreateBPB(int drive, BYTE *data, BOOL16 limited)
/* limited == TRUE is used with INT 0x21/0x440d */
{
if (drive > 1) {
setword(data, 512);
data[2] = 2;
setword(&data[3], 0);
data[5] = 2;
setword(&data[6], 240);
setword(&data[8], 64000);
data[0x0a] = 0xf8;
setword(&data[0x0b], 40);
setword(&data[0x0d], 56);
setword(&data[0x0f], 2);
setword(&data[0x11], 0);
if (!limited) {
setword(&data[0x1f], 800);
data[0x21] = 5;
setword(&data[0x22], 1);
}
} else { /* 1.44mb */
setword(data, 512);
data[2] = 2;
setword(&data[3], 0);
data[5] = 2;
setword(&data[6], 240);
setword(&data[8], 2880);
data[0x0a] = 0xf8;
setword(&data[0x0b], 6);
setword(&data[0x0d], 18);
setword(&data[0x0f], 2);
setword(&data[0x11], 0);
if (!limited) {
setword(&data[0x1f], 80);
data[0x21] = 7;
setword(&data[0x22], 2);
}
}
}
static int INT21_GetFreeDiskSpace( CONTEXT86 *context )
{
DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
char root[] = "A:\\";
*root += DOS_GET_DRIVE( DL_reg(context) );
if (!GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
&free_clusters, &total_clusters )) return 0;
AX_reg(context) = cluster_sectors;
BX_reg(context) = free_clusters;
CX_reg(context) = sector_bytes;
DX_reg(context) = total_clusters;
return 1;
}
static int INT21_GetDriveAllocInfo( CONTEXT86 *context )
{
if (!INT21_GetFreeDiskSpace( context )) return 0;
if (!heap && !INT21_CreateHeap()) return 0;
heap->mediaID = 0xf0;
context->SegDs = DosHeapHandle;
BX_reg(context) = (int)&heap->mediaID - (int)heap;
return 1;
}
static int FillInDrivePB( int drive )
{
if(!DRIVE_IsValid(drive))
{
SetLastError( ERROR_INVALID_DRIVE );
return 0;
}
else if (heap || INT21_CreateHeap())
{
/* FIXME: I have no idea what a lot of this information should
* say or whether it even really matters since we're not allowing
* direct block access. However, some programs seem to depend on
* getting at least _something_ back from here. The 'next' pointer
* does worry me, though. Should we have a complete table of
* separate DPBs per drive? Probably, but I'm lazy. :-) -CH
*/
heap->dpb.drive_num = heap->dpb.unit_num = drive; /*The same?*/
heap->dpb.sector_size = 512;
heap->dpb.high_sector = 1;
heap->dpb.shift = drive < 2 ? 0 : 6; /*6 for HD, 0 for floppy*/
heap->dpb.reserved = 0;
heap->dpb.num_FAT = 1;
heap->dpb.dir_entries = 2;
heap->dpb.first_data = 2;
heap->dpb.high_cluster = 64000;
heap->dpb.sectors_in_FAT = 1;
heap->dpb.start_dir = 1;
heap->dpb.driver_head = 0;
heap->dpb.media_ID = (drive > 1) ? 0xF8 : 0xF0;
heap->dpb.access_flag = 0;
heap->dpb.next = 0;
heap->dpb.free_search = 0;
heap->dpb.free_clusters = 0xFFFF; /* unknown */
return 1;
}
return 0;
}
static void GetDrivePB( CONTEXT86 *context, int drive )
{
if (FillInDrivePB( drive ))
{
AL_reg(context) = 0x00;
context->SegDs = SELECTOROF(dpbsegptr);
BX_reg(context) = OFFSETOF(dpbsegptr);
}
else
{
AX_reg(context) = 0x00ff;
}
}
static void ioctlGetDeviceInfo( CONTEXT86 *context )
{
int curr_drive;
const DOS_DEVICE *dev;
TRACE("(%d)\n", BX_reg(context));
RESET_CFLAG(context);
/* DOS device ? */
if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )))
{
DX_reg(context) = dev->flags;
return;
}
/* it seems to be a file */
curr_drive = DRIVE_GetCurrentDrive();
DX_reg(context) = 0x0140 + curr_drive + ((curr_drive > 1) ? 0x0800 : 0);
/* no floppy */
/* bits 0-5 are current drive
* bit 6 - file has NOT been written..FIXME: correct?
* bit 8 - generate int24 if no diskspace on write/ read past end of file
* bit 11 - media not removable
* bit 14 - don't set file date/time on closing
* bit 15 - file is remote
*/
}
static BOOL ioctlGenericBlkDevReq( CONTEXT86 *context )
{
BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
int drive = DOS_GET_DRIVE( BL_reg(context) );
if (!DRIVE_IsValid(drive))
{
SetLastError( ERROR_FILE_NOT_FOUND );
return TRUE;
}
if (CH_reg(context) != 0x08)
{
INT_BARF( context, 0x21 );
return FALSE;
}
switch (CL_reg(context))
{
case 0x4a: /* lock logical volume */
TRACE("lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
break;
case 0x60: /* get device parameters */
/* used by w4wgrp's winfile */
memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
dataptr[0] = 0x04;
dataptr[6] = 0; /* media type */
if (drive > 1)
{
dataptr[1] = 0x05; /* fixed disk */
setword(&dataptr[2], 0x01); /* non removable */
setword(&dataptr[4], 0x300); /* # of cylinders */
}
else
{
dataptr[1] = 0x07; /* block dev, floppy */
setword(&dataptr[2], 0x02); /* removable */
setword(&dataptr[4], 80); /* # of cylinders */
}
CreateBPB(drive, &dataptr[7], TRUE);
RESET_CFLAG(context);
break;
case 0x41: /* write logical device track */
case 0x61: /* read logical device track */
{
BYTE drive = BL_reg(context) ?
BL_reg(context) : DRIVE_GetCurrentDrive();
WORD head = *(WORD *)dataptr+1;
WORD cyl = *(WORD *)dataptr+3;
WORD sect = *(WORD *)dataptr+5;
WORD nrsect = *(WORD *)dataptr+7;
BYTE *data = (BYTE *)dataptr+9;
int (*raw_func)(BYTE, DWORD, DWORD, BYTE *, BOOL);
raw_func = (CL_reg(context) == 0x41) ?
DRIVE_RawWrite : DRIVE_RawRead;
if (raw_func(drive, head*cyl*sect, nrsect, data, FALSE))
RESET_CFLAG(context);
else
{
AX_reg(context) = 0x1e; /* read fault */
SET_CFLAG(context);
}
}
break;
case 0x66:/* get disk serial number */
{
char label[12],fsname[9],path[4];
DWORD serial;
strcpy(path,"x:\\");path[0]=drive+'A';
GetVolumeInformationA(
path,label,12,&serial,NULL,NULL,fsname,9
);
*(WORD*)dataptr = 0;
memcpy(dataptr+2,&serial,4);
memcpy(dataptr+6,label ,11);
memcpy(dataptr+17,fsname,8);
}
break;
case 0x6a:
TRACE("logical volume %d unlocked.\n",drive);
break;
case 0x6f:
memset(dataptr+1, '\0', dataptr[0]-1);
dataptr[1] = dataptr[0];
dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
dataptr[3] = 0xFF; /* no physical drive */
break;
case 0x72:
/* Trail on error implementation */
AX_reg(context) = GetDriveType16(BL_reg(context)) == DRIVE_UNKNOWN ? 0x0f : 0x01;
SET_CFLAG(context); /* Seems to be set all the time */
break;
default:
INT_BARF( context, 0x21 );
}
return FALSE;
}
static void INT21_ParseFileNameIntoFCB( CONTEXT86 *context )
{
char *filename =
CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
char *fcb =
CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi );
char *buffer, *s, *d;
AL_reg(context) = 0xff; /* failed */
TRACE("filename: '%s'\n", filename);
buffer = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + 1);
s = filename;
d = buffer;
while (*s)
{
if ((*s != ' ') && (*s != '\r') && (*s != '\n'))
*d++ = *s++;
else
break;
}
*d = '\0';
DOSFS_ToDosFCBFormat(buffer, fcb + 1);
*fcb = 0;
TRACE("FCB: '%s'\n", ((CHAR *)fcb + 1));
HeapFree( GetProcessHeap(), 0, buffer);
AL_reg(context) =
((strchr(filename, '*')) || (strchr(filename, '$'))) != 0;
/* point DS:SI to first unparsed character */
SI_reg(context) += (int)s - (int)filename;
}
static void INT21_GetSystemDate( CONTEXT86 *context )
{
SYSTEMTIME systime;
GetLocalTime( &systime );
CX_reg(context) = systime.wYear;
DX_reg(context) = (systime.wMonth << 8) | systime.wDay;
AX_reg(context) = systime.wDayOfWeek;
}
static void INT21_GetSystemTime( CONTEXT86 *context )
{
SYSTEMTIME systime;
GetLocalTime( &systime );
CX_reg(context) = (systime.wHour << 8) | systime.wMinute;
DX_reg(context) = (systime.wSecond << 8) | (systime.wMilliseconds / 10);
}
/* Many calls translate a drive argument like this:
drive number (00h = default, 01h = A:, etc)
*/
static char drivestring[]="default";
char *INT21_DriveName(int drive)
{
if(drive >0)
{
drivestring[0]= (unsigned char)drive + '@';
drivestring[1]=':';
drivestring[2]=0;
}
return drivestring;
}
static BOOL INT21_CreateFile( CONTEXT86 *context )
{
AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx ), CX_reg(context) );
return (AX_reg(context) == (WORD)HFILE_ERROR16);
}
static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
{
/* Mask off all flags not explicitly allowed by the doc */
attr &= FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
return Win32HandleToDosFileHandle( CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
CREATE_NEW, attr, 0 ));
}
static void OpenExistingFile( CONTEXT86 *context )
{
AX_reg(context) = _lopen16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
AL_reg(context) );
if (AX_reg(context) == (WORD)HFILE_ERROR16)
{
AX_reg(context) = GetLastError();
SET_CFLAG(context);
}
}
static BOOL INT21_ExtendedOpenCreateFile(CONTEXT86 *context )
{
BOOL bExtendedError = FALSE;
BYTE action = DL_reg(context);
/* Shuffle arguments to call OpenExistingFile */
AL_reg(context) = BL_reg(context);
DX_reg(context) = SI_reg(context);
/* BX,CX and DX should be preserved */
OpenExistingFile(context);
if ((context->EFlags & 0x0001) == 0) /* File exists */
{
UINT16 uReturnCX = 0;
/* Now decide what do do */
if ((action & 0x07) == 0)
{
_lclose16( AX_reg(context) );
AX_reg(context) = 0x0050; /*File exists*/
SET_CFLAG(context);
WARN("extended open/create: failed because file exists \n");
}
else if ((action & 0x07) == 2)
{
/* Truncate it, but first check if opened for write */
if ((BL_reg(context) & 0x0007)== 0)
{
_lclose16( AX_reg(context) );
WARN("extended open/create: failed, trunc on ro file\n");
AX_reg(context) = 0x000C; /*Access code invalid*/
SET_CFLAG(context);
}
else
{
TRACE("extended open/create: Closing before truncate\n");
if (_lclose16( AX_reg(context) ))
{
WARN("extended open/create: close before trunc failed\n");
AX_reg(context) = 0x0019; /*Seek Error*/
CX_reg(context) = 0;
SET_CFLAG(context);
}
/* Shuffle arguments to call CreateFile */
TRACE("extended open/create: Truncating\n");
AL_reg(context) = BL_reg(context);
/* CX is still the same */
DX_reg(context) = SI_reg(context);
bExtendedError = INT21_CreateFile(context);
if (context->EFlags & 0x0001) /*no file open, flags set */
{
WARN("extended open/create: trunc failed\n");
return bExtendedError;
}
uReturnCX = 0x3;
}
}
else uReturnCX = 0x1;
CX_reg(context) = uReturnCX;
}
else /* file does not exist */
{
RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
if ((action & 0xF0)== 0)
{
CX_reg(context) = 0;
SET_CFLAG(context);
WARN("extended open/create: failed, file dosen't exist\n");
}
else
{
/* Shuffle arguments to call CreateFile */
TRACE("extended open/create: Creating\n");
AL_reg(context) = BL_reg(context);
/* CX should still be the same */
DX_reg(context) = SI_reg(context);
bExtendedError = INT21_CreateFile(context);
if (context->EFlags & 0x0001) /*no file open, flags set */
{
WARN("extended open/create: create failed\n");
return bExtendedError;
}
CX_reg(context) = 2;
}
}
return bExtendedError;
}
static BOOL INT21_ChangeDir( CONTEXT86 *context )
{
int drive;
char *dirname = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
TRACE("changedir %s\n", dirname);
if (dirname[0] && (dirname[1] == ':'))
{
drive = toupper(dirname[0]) - 'A';
dirname += 2;
}
else drive = DRIVE_GetCurrentDrive();
return DRIVE_Chdir( drive, dirname );
}
static int INT21_FindFirst( CONTEXT86 *context )
{
char *p;
const char *path;
DOS_FULL_NAME full_name;
FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
path = (const char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
dta->unixPath = NULL;
if (!DOSFS_GetFullName( path, FALSE, &full_name ))
{
AX_reg(context) = GetLastError();
SET_CFLAG(context);
return 0;
}
dta->unixPath = HEAP_strdupA( GetProcessHeap(), 0, full_name.long_name );
p = strrchr( dta->unixPath, '/' );
*p = '\0';
/* Note: terminating NULL in dta->mask overwrites dta->search_attr
* (doesn't matter as it is set below anyway)
*/
if (!DOSFS_ToDosFCBFormat( p + 1, dta->mask ))
{
HeapFree( GetProcessHeap(), 0, dta->unixPath );
dta->unixPath = NULL;
SetLastError( ERROR_FILE_NOT_FOUND );
AX_reg(context) = ERROR_FILE_NOT_FOUND;
SET_CFLAG(context);
return 0;
}
dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
: DRIVE_GetCurrentDrive();
dta->count = 0;
dta->search_attr = CL_reg(context);
return 1;
}
static int INT21_FindNext( CONTEXT86 *context )
{
FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
WIN32_FIND_DATAA entry;
int count;
if (!dta->unixPath) return 0;
if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
dta->search_attr, dta->count, &entry )))
{
HeapFree( GetProcessHeap(), 0, dta->unixPath );
dta->unixPath = NULL;
return 0;
}
if ((int)dta->count + count > 0xffff)
{
WARN("Too many directory entries in %s\n", dta->unixPath );
HeapFree( GetProcessHeap(), 0, dta->unixPath );
dta->unixPath = NULL;
return 0;
}
dta->count += count;
dta->fileattr = entry.dwFileAttributes;
dta->filesize = entry.nFileSizeLow;
FileTimeToDosDateTime( &entry.ftLastWriteTime,
&dta->filedate, &dta->filetime );
strcpy( dta->filename, entry.cAlternateFileName );
if (!memchr(dta->mask,'?',11)) {
/* wildcardless search, release resources in case no findnext will
* be issued, and as a workaround in case file creation messes up
* findnext, as sometimes happens with pkunzip */
HeapFree( GetProcessHeap(), 0, dta->unixPath );
dta->unixPath = NULL;
}
return 1;
}
static BOOL INT21_CreateTempFile( CONTEXT86 *context )
{
static int counter = 0;
char *name = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx );
char *p = name + strlen(name);
/* despite what Ralf Brown says, some programs seem to call without
* ending backslash (DOS accepts that, so we accept it too) */
if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
for (;;)
{
sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
counter = (counter + 1) % 1000;
if ((AX_reg(context) = _lcreat16_uniq( name, 0 )) != (WORD)HFILE_ERROR16)
{
TRACE("created %s\n", name );
return TRUE;
}
if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
}
}
static BOOL INT21_GetCurrentDirectory( CONTEXT86 *context )
{
int drive = DOS_GET_DRIVE( DL_reg(context) );
char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
if (!DRIVE_IsValid(drive))
{
SetLastError( ERROR_INVALID_DRIVE );
return FALSE;
}
lstrcpynA( ptr, DRIVE_GetDosCwd(drive), 64 );
AX_reg(context) = 0x0100; /* success return code */
return TRUE;
}
static void INT21_GetDBCSLeadTable( CONTEXT86 *context )
{
if (heap || INT21_CreateHeap())
{ /* return an empty table just as DOS 4.0+ does */
context->SegDs = DosHeapHandle;
SI_reg(context) = (int)&heap->DummyDBCSLeadTable - (int)heap;
}
else
{
AX_reg(context) = 0x1; /* error */
SET_CFLAG(context);
}
}
static int INT21_GetDiskSerialNumber( CONTEXT86 *context )
{
BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
int drive = DOS_GET_DRIVE( BL_reg(context) );
if (!DRIVE_IsValid(drive))
{
SetLastError( ERROR_INVALID_DRIVE );
return 0;
}
*(WORD *)dataptr = 0;
*(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
strncpy(dataptr + 0x11, "FAT16 ", 8);
return 1;
}
static int INT21_SetDiskSerialNumber( CONTEXT86 *context )
{
BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
int drive = DOS_GET_DRIVE( BL_reg(context) );
if (!DRIVE_IsValid(drive))
{
SetLastError( ERROR_INVALID_DRIVE );
return 0;
}
DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
return 1;
}
/* microsoft's programmers should be shot for using CP/M style int21
calls in Windows for Workgroup's winfile.exe */
static int INT21_FindFirstFCB( CONTEXT86 *context )
{
BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
FINDFILE_FCB *pFCB;
LPCSTR root, cwd;
int drive;
if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
else pFCB = (FINDFILE_FCB *)fcb;
drive = DOS_GET_DRIVE( pFCB->drive );
if (!DRIVE_IsValid( drive )) return 0;
root = DRIVE_GetRoot( drive );
cwd = DRIVE_GetUnixCwd( drive );
pFCB->unixPath = HeapAlloc( GetProcessHeap(), 0,
strlen(root)+strlen(cwd)+2 );
if (!pFCB->unixPath) return 0;
strcpy( pFCB->unixPath, root );
strcat( pFCB->unixPath, "/" );
strcat( pFCB->unixPath, cwd );
pFCB->count = 0;
return 1;
}
static int INT21_FindNextFCB( CONTEXT86 *context )
{
BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
FINDFILE_FCB *pFCB;
DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
WIN32_FIND_DATAA entry;
BYTE attr;
int count;
if (*fcb == 0xff) /* extended FCB ? */
{
attr = fcb[6];
pFCB = (FINDFILE_FCB *)(fcb + 7);
}
else
{
attr = 0;
pFCB = (FINDFILE_FCB *)fcb;
}
if (!pFCB->unixPath) return 0;
if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename, NULL,
DOS_GET_DRIVE( pFCB->drive ), attr,
pFCB->count, &entry )))
{
HeapFree( GetProcessHeap(), 0, pFCB->unixPath );
pFCB->unixPath = NULL;
return 0;
}
pFCB->count += count;
if (*fcb == 0xff) { /* place extended FCB header before pResult if called with extended FCB */
*(BYTE *)pResult = 0xff;
(BYTE *)pResult +=6; /* leave reserved field behind */
*(BYTE *)pResult = entry.dwFileAttributes;
((BYTE *)pResult)++;
}
*(BYTE *)pResult = DOS_GET_DRIVE( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
((BYTE *)pResult)++;
pResult->fileattr = entry.dwFileAttributes;
pResult->cluster = 0; /* what else? */
pResult->filesize = entry.nFileSizeLow;
memset( pResult->reserved, 0, sizeof(pResult->reserved) );
FileTimeToDosDateTime( &entry.ftLastWriteTime,
&pResult->filedate, &pResult->filetime );
/* Convert file name to FCB format */
memset( pResult->filename, ' ', sizeof(pResult->filename) );
if (!strcmp( entry.cAlternateFileName, "." )) pResult->filename[0] = '.';
else if (!strcmp( entry.cAlternateFileName, ".." ))
pResult->filename[0] = pResult->filename[1] = '.';
else
{
char *p = strrchr( entry.cAlternateFileName, '.' );
if (p && p[1] && (p != entry.cAlternateFileName))
{
memcpy( pResult->filename, entry.cAlternateFileName,
min( (p - entry.cAlternateFileName), 8 ) );
memcpy( pResult->filename + 8, p + 1, min( strlen(p), 3 ) );
}
else
memcpy( pResult->filename, entry.cAlternateFileName,
min( strlen(entry.cAlternateFileName), 8 ) );
}
return 1;
}
static void DeleteFileFCB( CONTEXT86 *context )
{
FIXME("(%p): stub\n", context);
}
static void RenameFileFCB( CONTEXT86 *context )
{
FIXME("(%p): stub\n", context);
}
static void fLock( CONTEXT86 * context )
{
switch ( AX_reg(context) & 0xff )
{
case 0x00: /* LOCK */
TRACE("lock handle %d offset %ld length %ld\n",
BX_reg(context),
MAKELONG(DX_reg(context),CX_reg(context)),
MAKELONG(DI_reg(context),SI_reg(context))) ;
if (!LockFile(DosFileHandleToWin32Handle(BX_reg(context)),
MAKELONG(DX_reg(context),CX_reg(context)), 0,
MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
AX_reg(context) = GetLastError();
SET_CFLAG(context);
}
break;
case 0x01: /* UNLOCK */
TRACE("unlock handle %d offset %ld length %ld\n",
BX_reg(context),
MAKELONG(DX_reg(context),CX_reg(context)),
MAKELONG(DI_reg(context),SI_reg(context))) ;
if (!UnlockFile(DosFileHandleToWin32Handle(BX_reg(context)),
MAKELONG(DX_reg(context),CX_reg(context)), 0,
MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
AX_reg(context) = GetLastError();
SET_CFLAG(context);
}
return;
default:
AX_reg(context) = 0x0001;
SET_CFLAG(context);
return;
}
}
static BOOL
INT21_networkfunc (CONTEXT86 *context)
{
switch (AL_reg(context)) {
case 0x00: /* Get machine name. */
{
char *dst = CTX_SEG_OFF_TO_LIN (context,context->SegDs,context->Edx);
TRACE("getting machine name to %p\n", dst);
if (gethostname (dst, 15))
{
WARN("failed!\n");
SetLastError( ER_NoNetwork );
return TRUE;
} else {
int len = strlen (dst);
while (len < 15)
dst[len++] = ' ';
dst[15] = 0;
CH_reg(context) = 1; /* Valid */
CL_reg(context) = 1; /* NETbios number??? */
TRACE("returning %s\n", debugstr_an (dst, 16));
return FALSE;
}
}
default:
SetLastError( ER_NoNetwork );
return TRUE;
}
}
static void INT21_SetCurrentPSP(WORD psp)
{
LPDOSTASK lpDosTask = Dosvm.Current();
if (lpDosTask)
lpDosTask->psp_seg = psp;
else
ERR("Cannot change PSP for non-DOS task!\n");
}
static WORD INT21_GetCurrentPSP(void)
{
LPDOSTASK lpDosTask = Dosvm.Current();
if (lpDosTask)
return lpDosTask->psp_seg;
else
return GetCurrentPDB16();
}
static WORD INT21_GetReturnCode(void)
{
LPDOSTASK lpDosTask = Dosvm.Current();
if (lpDosTask) {
WORD ret = lpDosTask->retval;
lpDosTask->retval = 0;
return ret;
} else return 0;
}
/***********************************************************************
* INT21_GetExtendedError
*/
static void INT21_GetExtendedError( CONTEXT86 *context )
{
BYTE class, action, locus;
WORD error = GetLastError();
switch(error)
{
case ERROR_SUCCESS:
class = action = locus = 0;
break;
case ERROR_DIR_NOT_EMPTY:
class = EC_Exists;
action = SA_Ignore;
locus = EL_Disk;
break;
case ERROR_ACCESS_DENIED:
class = EC_AccessDenied;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_CANNOT_MAKE:
class = EC_AccessDenied;
action = SA_Abort;
locus = EL_Unknown;
break;
case ERROR_DISK_FULL:
case ERROR_HANDLE_DISK_FULL:
class = EC_MediaError;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_FILE_EXISTS:
case ERROR_ALREADY_EXISTS:
class = EC_Exists;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_FILE_NOT_FOUND:
class = EC_NotFound;
action = SA_Abort;
locus = EL_Disk;
break;
case ER_GeneralFailure:
class = EC_SystemFailure;
action = SA_Abort;
locus = EL_Unknown;
break;
case ERROR_INVALID_DRIVE:
class = EC_MediaError;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_INVALID_HANDLE:
class = EC_ProgramError;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_LOCK_VIOLATION:
class = EC_AccessDenied;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_NO_MORE_FILES:
class = EC_MediaError;
action = SA_Abort;
locus = EL_Disk;
break;
case ER_NoNetwork:
class = EC_NotFound;
action = SA_Abort;
locus = EL_Network;
break;
case ERROR_NOT_ENOUGH_MEMORY:
class = EC_OutOfResource;
action = SA_Abort;
locus = EL_Memory;
break;
case ERROR_PATH_NOT_FOUND:
class = EC_NotFound;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_SEEK:
class = EC_NotFound;
action = SA_Ignore;
locus = EL_Disk;
break;
case ERROR_SHARING_VIOLATION:
class = EC_Temporary;
action = SA_Retry;
locus = EL_Disk;
break;
case ERROR_TOO_MANY_OPEN_FILES:
class = EC_ProgramError;
action = SA_Abort;
locus = EL_Disk;
break;
default:
FIXME("Unknown error %d\n", error );
class = EC_SystemFailure;
action = SA_Abort;
locus = EL_Unknown;
break;
}
TRACE("GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
error, class, action, locus );
AX_reg(context) = error;
BH_reg(context) = class;
BL_reg(context) = action;
CH_reg(context) = locus;
}
/***********************************************************************
* DOS3Call (KERNEL.102)
* INT_Int21Handler (WPROCS.133)
*/
void WINAPI DOS3Call( CONTEXT86 *context )
{
BOOL bSetDOSExtendedError = FALSE;
TRACE("AX=%04x BX=%04x CX=%04x DX=%04x "
"SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
AX_reg(context), BX_reg(context), CX_reg(context), DX_reg(context),
SI_reg(context), DI_reg(context),
(WORD)context->SegDs, (WORD)context->SegEs,
context->EFlags );
if (AH_reg(context) == 0x59) /* Get extended error info */
{
INT21_GetExtendedError( context );
return;
}
if (AH_reg(context) == 0x0C) /* Flush buffer and read standard input */
{
TRACE("FLUSH BUFFER AND READ STANDARD INPUT\n");
/* no flush here yet */
AH_reg(context) = AL_reg(context);
}
if (AH_reg(context)>=0x2f) {
/* extended error is used by (at least) functions 0x2f to 0x62 */
SetLastError(0);
}
RESET_CFLAG(context); /* Not sure if this is a good idea */
switch(AH_reg(context))
{
case 0x03: /* READ CHARACTER FROM STDAUX */
case 0x04: /* WRITE CHARACTER TO STDAUX */
case 0x05: /* WRITE CHARACTER TO PRINTER */
case 0x0f: /* OPEN FILE USING FCB */
case 0x10: /* CLOSE FILE USING FCB */
case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
case 0x23: /* GET FILE SIZE FOR FCB */
case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
INT_BARF( context, 0x21 );
break;
case 0x00: /* TERMINATE PROGRAM */
TRACE("TERMINATE PROGRAM\n");
if (Dosvm.Exit) Dosvm.Exit( context, FALSE, 0 );
else ExitThread( 0 );
break;
case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
TRACE("DIRECT CHARACTER INPUT WITH ECHO\n");
AL_reg(context) = CONSOLE_GetCharacter();
/* FIXME: no echo */
break;
case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
TRACE("Write Character to Standard Output\n");
CONSOLE_Write(DL_reg(context), 0, 0, 0);
break;
case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
/* FIXME: Use DOSDEV_Peek/Read/Write(DOSDEV_Console(),...) !! */
if (DL_reg(context) == 0xff) {
static char scan = 0;
TRACE("Direct Console Input\n");
if (scan) {
/* return pending scancode */
AL_reg(context) = scan;
RESET_ZFLAG(context);
scan = 0;
} else {
char ascii;
if (INT_Int16ReadChar(&ascii,&scan,TRUE)) {
INT_Int16ReadChar(&ascii,&scan,FALSE);
/* return ASCII code */
AL_reg(context) = ascii;
RESET_ZFLAG(context);
/* return scan code on next call only if ascii==0 */
if (ascii) scan = 0;
} else {
/* nothing pending, clear everything */
AL_reg(context) = 0;
SET_ZFLAG(context);
scan = 0; /* just in case */
}
}
} else {
TRACE("Direct Console Output\n");
CONSOLE_Write(DL_reg(context), 0, 0, 0);
}
break;
case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
/* FIXME: Use DOSDEV_Peek/Read(DOSDEV_Console(),...) !! */
TRACE("DIRECT CHARACTER INPUT WITHOUT ECHO\n");
INT_Int16ReadChar(&AL_reg(context), NULL, FALSE);
break;
case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
/* FIXME: Use DOSDEV_Peek/Read(DOSDEV_Console(),...) !! */
TRACE("CHARACTER INPUT WITHOUT ECHO\n");
INT_Int16ReadChar(&AL_reg(context), NULL, FALSE);
break;
case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
TRACE("WRITE '$'-terminated string from %04lX:%04X to stdout\n",
context->SegDs,DX_reg(context) );
{
LPSTR data = CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
LPSTR p = data;
/* do NOT use strchr() to calculate the string length,
as '\0' is valid string content, too !
Maybe we should check for non-'$' strings, but DOS doesn't. */
while (*p != '$') p++;
_hwrite16( 1, data, (int)p - (int)data);
AL_reg(context) = '$'; /* yes, '$' (0x24) gets returned in AL */
}
break;
case 0x0a: /* BUFFERED INPUT */
{
char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx ));
int res;
TRACE("BUFFERED INPUT (size=%d)\n",buffer[0]);
if (buffer[1])
TRACE("Handle old chars in buffer!\n");
res=_lread16( 0, buffer+2,buffer[0]);
buffer[1]=res;
if(buffer[res+1] == '\n')
buffer[res+1] = '\r';
break;
}
case 0x0b: {/* GET STDIN STATUS */
char x1,x2;
if (CONSOLE_CheckForKeystroke(&x1,&x2))
AL_reg(context) = 0xff;
else
AL_reg(context) = 0;
break;
}
case 0x2e: /* SET VERIFY FLAG */
TRACE("SET VERIFY FLAG ignored\n");
/* we cannot change the behaviour anyway, so just ignore it */
break;
case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
case 0x1d:
case 0x1e:
case 0x20:
case 0x6b: /* NULL FUNCTION */
AL_reg(context) = 0;
break;
case 0x5c: /* "FLOCK" - RECORD LOCKING */
fLock(context);
break;
case 0x0d: /* DISK BUFFER FLUSH */
TRACE("DISK BUFFER FLUSH ignored\n");
RESET_CFLAG(context); /* dos 6+ only */
break;
case 0x0e: /* SELECT DEFAULT DRIVE */
TRACE("SELECT DEFAULT DRIVE %d\n", DL_reg(context));
DRIVE_SetCurrentDrive( DL_reg(context) );
AL_reg(context) = MAX_DOS_DRIVES;
break;
case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
TRACE("FIND FIRST MATCHING FILE USING FCB %p\n",
CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
if (!INT21_FindFirstFCB(context))
{
AL_reg(context) = 0xff;
break;
}
/* else fall through */
case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
AL_reg(context) = INT21_FindNextFCB(context) ? 0x00 : 0xff;
break;
case 0x13: /* DELETE FILE USING FCB */
DeleteFileFCB(context);
break;
case 0x17: /* RENAME FILE USING FCB */
RenameFileFCB(context);
break;
case 0x19: /* GET CURRENT DEFAULT DRIVE */
AL_reg(context) = DRIVE_GetCurrentDrive();
break;
case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
{
TDB *pTask = TASK_GetCurrent();
pTask->dta = MAKESEGPTR(context->SegDs,DX_reg(context));
TRACE("Set DTA: %08lx\n", pTask->dta);
}
break;
case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
DL_reg(context) = 0;
if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
break;
case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
break;
case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
GetDrivePB(context, DRIVE_GetCurrentDrive());
break;
case 0x25: /* SET INTERRUPT VECTOR */
INT_CtxSetHandler( context, AL_reg(context),
(FARPROC16)MAKESEGPTR( context->SegDs, DX_reg(context)));
break;
case 0x29: /* PARSE FILENAME INTO FCB */
INT21_ParseFileNameIntoFCB(context);
break;
case 0x2a: /* GET SYSTEM DATE */
INT21_GetSystemDate(context);
break;
case 0x2b: /* SET SYSTEM DATE */
FIXME("SetSystemDate(%02d/%02d/%04d): not allowed\n",
DL_reg(context), DH_reg(context), CX_reg(context) );
AL_reg(context) = 0; /* Let's pretend we succeeded */
break;
case 0x2c: /* GET SYSTEM TIME */
INT21_GetSystemTime(context);
break;
case 0x2d: /* SET SYSTEM TIME */
FIXME("SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
CH_reg(context), CL_reg(context),
DH_reg(context), DL_reg(context) );
AL_reg(context) = 0; /* Let's pretend we succeeded */
break;
case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
TRACE("GET DISK TRANSFER AREA ADDRESS\n");
{
TDB *pTask = TASK_GetCurrent();
context->SegEs = SELECTOROF( pTask->dta );
BX_reg(context) = OFFSETOF( pTask->dta );
}
break;
case 0x30: /* GET DOS VERSION */
TRACE("GET DOS VERSION %s requested\n",
(AL_reg(context) == 0x00)?"OEM number":"version flag");
AX_reg(context) = (HIWORD(GetVersion16()) >> 8) |
(HIWORD(GetVersion16()) << 8);
#if 0
AH_reg(context) = 0x7;
AL_reg(context) = 0xA;
#endif
BX_reg(context) = 0x00FF; /* 0x123456 is Wine's serial # */
CX_reg(context) = 0x0000;
break;
case 0x31: /* TERMINATE AND STAY RESIDENT */
FIXME("TERMINATE AND STAY RESIDENT stub\n");
break;
case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
TRACE("GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
INT21_DriveName( DL_reg(context)));
GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
break;
case 0x33: /* MULTIPLEXED */
switch (AL_reg(context))
{
case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
TRACE("GET CURRENT EXTENDED BREAK STATE\n");
DL_reg(context) = DOSCONF_config.brk_flag;
break;
case 0x01: /* SET EXTENDED BREAK STATE */
TRACE("SET CURRENT EXTENDED BREAK STATE\n");
DOSCONF_config.brk_flag = (DL_reg(context) > 0);
break;
case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
TRACE("GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
/* ugly coding in order to stay reentrant */
if (DL_reg(context))
{
DL_reg(context) = DOSCONF_config.brk_flag;
DOSCONF_config.brk_flag = 1;
}
else
{
DL_reg(context) = DOSCONF_config.brk_flag;
DOSCONF_config.brk_flag = 0;
}
break;
case 0x05: /* GET BOOT DRIVE */
TRACE("GET BOOT DRIVE\n");
DL_reg(context) = 3;
/* c: is Wine's bootdrive (a: is 1)*/
break;
case 0x06: /* GET TRUE VERSION NUMBER */
TRACE("GET TRUE VERSION NUMBER\n");
BX_reg(context) = (HIWORD(GetVersion16() >> 8)) |
(HIWORD(GetVersion16() << 8));
DX_reg(context) = 0x00;
break;
default:
INT_BARF( context, 0x21 );
break;
}
break;
case 0x34: /* GET ADDRESS OF INDOS FLAG */
TRACE("GET ADDRESS OF INDOS FLAG\n");
if (!heap) INT21_CreateHeap();
context->SegEs = DosHeapHandle;
BX_reg(context) = (int)&heap->InDosFlag - (int)heap;
break;
case 0x35: /* GET INTERRUPT VECTOR */
TRACE("GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
{
FARPROC16 addr = INT_CtxGetHandler( context, AL_reg(context) );
context->SegEs = SELECTOROF(addr);
BX_reg(context) = OFFSETOF(addr);
}
break;
case 0x36: /* GET FREE DISK SPACE */
TRACE("GET FREE DISK SPACE FOR DRIVE %s\n",
INT21_DriveName( DL_reg(context)));
if (!INT21_GetFreeDiskSpace(context)) AX_reg(context) = 0xffff;
break;
case 0x37:
{
unsigned char switchchar='/';
switch (AL_reg(context))
{
case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
TRACE("SWITCHAR - GET SWITCH CHARACTER\n");
AL_reg(context) = 0x00; /* success*/
DL_reg(context) = switchchar;
break;
case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
TRACE("SWITCHAR - SET SWITCH CHARACTER\n");
switchchar = DL_reg(context);
AL_reg(context) = 0x00; /* success*/
break;
default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
INT_BARF( context, 0x21 );
break;
}
break;
}
case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
TRACE("GET COUNTRY-SPECIFIC INFORMATION for country 0x%02x\n",
AL_reg(context));
AX_reg(context) = 0x02; /* no country support available */
SET_CFLAG(context);
break;
case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
TRACE("MKDIR %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx ), NULL));
/* FIXME: CreateDirectory's LastErrors will clash with the ones
* used by dos. AH=39 only returns 3 (path not found) and 5 (access
* denied), while CreateDirectory return several ones. remap some of
* them. -Marcus
*/
if (bSetDOSExtendedError) {
switch (GetLastError()) {
case ERROR_ALREADY_EXISTS:
case ERROR_FILENAME_EXCED_RANGE:
case ERROR_DISK_FULL:
SetLastError(ERROR_ACCESS_DENIED);
break;
default: break;
}
}
break;
case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
TRACE("RMDIR %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx )));
break;
case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
TRACE("CHDIR %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
bSetDOSExtendedError = !INT21_ChangeDir(context);
break;
case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
TRACE("CREAT flag 0x%02x %s\n",CX_reg(context),
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
bSetDOSExtendedError = INT21_CreateFile( context );
break;
case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
TRACE("OPEN mode 0x%02x %s\n",AL_reg(context),
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
OpenExistingFile(context);
break;
case 0x3e: /* "CLOSE" - CLOSE FILE */
TRACE("CLOSE handle %d\n",BX_reg(context));
bSetDOSExtendedError = ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0);
break;
case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
TRACE("READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
context->SegDs,DX_reg(context),CX_reg(context) );
{
LONG result;
if (ISV86(context))
result = _hread16( BX_reg(context),
CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx ),
CX_reg(context) );
else
result = WIN16_hread( BX_reg(context),
MAKESEGPTR( context->SegDs, context->Edx ),
CX_reg(context) );
if (result == -1) bSetDOSExtendedError = TRUE;
else AX_reg(context) = (WORD)result;
}
break;
case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
TRACE("WRITE from %04lX:%04X to handle %d for %d byte\n",
context->SegDs,DX_reg(context),BX_reg(context),CX_reg(context) );
{
LONG result = _hwrite16( BX_reg(context),
CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx ),
CX_reg(context) );
if (result == -1) bSetDOSExtendedError = TRUE;
else AX_reg(context) = (WORD)result;
}
break;
case 0x41: /* "UNLINK" - DELETE FILE */
TRACE("UNLINK %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx )));
break;
case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
TRACE("LSEEK handle %d offset %ld from %s\n",
BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
(AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
"current file position":"end of file");
{
LONG status = _llseek16( BX_reg(context),
MAKELONG(DX_reg(context),CX_reg(context)),
AL_reg(context) );
if (status == -1) bSetDOSExtendedError = TRUE;
else
{
AX_reg(context) = LOWORD(status);
DX_reg(context) = HIWORD(status);
}
}
break;
case 0x43: /* FILE ATTRIBUTES */
switch (AL_reg(context))
{
case 0x00:
TRACE("GET FILE ATTRIBUTES for %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
AX_reg(context) = (WORD)GetFileAttributesA(
CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx));
if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
else CX_reg(context) = AX_reg(context);
break;
case 0x01:
TRACE("SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
bSetDOSExtendedError =
(!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx),
CX_reg(context) ));
break;
case 0x02:
FIXME("GET COMPRESSED FILE SIZE for %s stub\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
}
break;
case 0x44: /* IOCTL */
switch (AL_reg(context))
{
case 0x00:
ioctlGetDeviceInfo(context);
break;
case 0x01:
break;
case 0x02:{
const DOS_DEVICE *dev;
if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )) &&
!strcasecmp( dev->name, "SCSIMGR$" ))
{
ASPI_DOS_HandleInt(context);
}
break;
}
case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
/*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);*/
int drive = DOS_GET_DRIVE(BL_reg(context));
FIXME("program tried to write to block device control channel of drive %d:\n",drive);
/* for (i=0;i<CX_reg(context);i++)
fprintf(stdnimp,"%02x ",dataptr[i]);
fprintf(stdnimp,"\n");*/
AX_reg(context)=CX_reg(context);
break;
}
case 0x08: /* Check if drive is removable. */
TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
INT21_DriveName( BL_reg(context)));
switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
{
case DRIVE_UNKNOWN:
SetLastError( ERROR_INVALID_DRIVE );
AX_reg(context) = ERROR_INVALID_DRIVE;
SET_CFLAG(context);
break;
case DRIVE_REMOVABLE:
AX_reg(context) = 0; /* removable */
break;
default:
AX_reg(context) = 1; /* not removable */
break;
}
break;
case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
INT21_DriveName( BL_reg(context)));
switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
{
case DRIVE_UNKNOWN:
SetLastError( ERROR_INVALID_DRIVE );
AX_reg(context) = ERROR_INVALID_DRIVE;
SET_CFLAG(context);
break;
case DRIVE_REMOTE:
DX_reg(context) = (1<<9) | (1<<12); /* remote */
break;
default:
DX_reg(context) = 0; /* FIXME: use driver attr here */
break;
}
break;
case 0x0a: /* check if handle (BX) is remote */
TRACE("IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
/* returns DX, bit 15 set if remote, bit 14 set if date/time
* not set on close
*/
DX_reg(context) = 0;
break;
case 0x0b: /* SET SHARING RETRY COUNT */
TRACE("IOCTL - SET SHARING RETRY COUNT pause %d retries %d\n",
CX_reg(context), DX_reg(context));
if (!CX_reg(context))
{
AX_reg(context) = 1;
SET_CFLAG(context);
break;
}
DOSMEM_LOL()->sharing_retry_delay = CX_reg(context);
if (!DX_reg(context))
DOSMEM_LOL()->sharing_retry_count = DX_reg(context);
RESET_CFLAG(context);
break;
case 0x0d:
TRACE("IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
INT21_DriveName( BL_reg(context)));
bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
break;
case 0x0e: /* get logical drive mapping */
TRACE("IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
INT21_DriveName( BL_reg(context)));
AL_reg(context) = 0; /* drive has no mapping - FIXME: may be wrong*/
break;
case 0x0F: /* Set logical drive mapping */
{
int drive;
TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
INT21_DriveName( BL_reg(context)));
drive = DOS_GET_DRIVE ( BL_reg(context) );
if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
{
SET_CFLAG(context);
AX_reg(context) = 0x000F; /* invalid drive */
}
break;
}
case 0xe0: /* Sun PC-NFS API */
/* not installed */
break;
case 0x52: /* DR-DOS version */
/* This is not DR-DOS */
TRACE("GET DR-DOS VERSION requested\n");
AX_reg(context) = 0x0001; /* Invalid function */
SET_CFLAG(context); /* Error */
SetLastError( ERROR_INVALID_FUNCTION );
break;
default:
INT_BARF( context, 0x21 );
break;
}
break;
case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
{
HANDLE handle;
TRACE("DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
DosFileHandleToWin32Handle(BX_reg(context)),
GetCurrentProcess(), &handle,
0, TRUE, DUPLICATE_SAME_ACCESS )))
AX_reg(context) = HFILE_ERROR16;
else
AX_reg(context) = Win32HandleToDosFileHandle(handle);
break;
}
case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
TRACE("FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
BX_reg(context),CX_reg(context));
bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
break;
case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
TRACE("CWD - GET CURRENT DIRECTORY for drive %s\n",
INT21_DriveName( DL_reg(context)));
bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
break;
case 0x48: /* ALLOCATE MEMORY */
TRACE("ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
{
LPVOID *mem;
if (ISV86(context))
{
mem= DOSMEM_GetBlock((DWORD)BX_reg(context)<<4,NULL);
if (mem)
AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
}
else
{
mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
if (mem)
AX_reg(context) = (DWORD)mem&0xffff;
}
if (!mem)
{
SET_CFLAG(context);
AX_reg(context) = 0x0008; /* insufficient memory */
BX_reg(context) = DOSMEM_Available()>>4;
}
}
break;
case 0x49: /* FREE MEMORY */
TRACE("FREE MEMORY segment %04lX\n", context->SegEs);
{
BOOL ret;
if (ISV86(context))
ret= DOSMEM_FreeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4));
else
{
ret = !GlobalDOSFree16(context->SegEs);
/* If we don't reset ES_reg, we will fail in the relay code */
context->SegEs=ret;
}
if (!ret)
{
TRACE("FREE MEMORY failed\n");
SET_CFLAG(context);
AX_reg(context) = 0x0009; /* memory block address invalid */
}
}
break;
case 0x4a: /* RESIZE MEMORY BLOCK */
TRACE("RESIZE MEMORY segment %04lX to %d paragraphs\n", context->SegEs, BX_reg(context));
if (!ISV86(context))
FIXME("RESIZE MEMORY probably insufficient implementation. Expect crash soon\n");
{
LPVOID *mem = DOSMEM_ResizeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4),
BX_reg(context)<<4,NULL);
if (mem)
AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
else {
SET_CFLAG(context);
AX_reg(context) = 0x0008; /* insufficient memory */
BX_reg(context) = DOSMEM_Available()>>4; /* not quite right */
}
}
break;
case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
TRACE("EXEC %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx ));
if (ISV86(context)) {
if (!Dosvm.Exec( context, CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx),
AL_reg(context), CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx) ))
bSetDOSExtendedError = TRUE;
} else {
AX_reg(context) = WinExec16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx ),
SW_NORMAL );
if (AX_reg(context) < 32) SET_CFLAG(context);
}
break;
case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
TRACE("EXIT with return code %d\n",AL_reg(context));
if (Dosvm.Exit) Dosvm.Exit( context, FALSE, AL_reg(context) );
else ExitThread( AL_reg(context) );
break;
case 0x4d: /* GET RETURN CODE */
TRACE("GET RETURN CODE (ERRORLEVEL)\n");
AX_reg(context) = INT21_GetReturnCode();
break;
case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
TRACE("FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
if (!INT21_FindFirst(context)) break;
/* fall through */
case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
TRACE("FINDNEXT\n");
if (!INT21_FindNext(context))
{
SetLastError( ERROR_NO_MORE_FILES );
AX_reg(context) = ERROR_NO_MORE_FILES;
SET_CFLAG(context);
}
else AX_reg(context) = 0; /* OK */
break;
case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
TRACE("SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
INT21_SetCurrentPSP(BX_reg(context));
break;
case 0x51: /* GET PSP ADDRESS */
TRACE("GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
/* FIXME: should we return the original DOS PSP upon */
/* Windows startup ? */
BX_reg(context) = INT21_GetCurrentPSP();
break;
case 0x62: /* GET PSP ADDRESS */
TRACE("GET CURRENT PSP ADDRESS\n");
/* FIXME: should we return the original DOS PSP upon */
/* Windows startup ? */
BX_reg(context) = INT21_GetCurrentPSP();
break;
case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
TRACE("SYSVARS - GET LIST OF LISTS\n");
{
context->SegEs = ISV86(context) ? HIWORD(DOS_LOLSeg) : LOWORD(DOS_LOLSeg);
BX_reg(context) = FIELD_OFFSET(DOS_LISTOFLISTS, ptr_first_DPB);
}
break;
case 0x54: /* Get Verify Flag */
TRACE("Get Verify Flag - Not Supported\n");
AL_reg(context) = 0x00; /* pretend we can tell. 00h = off 01h = on */
break;
case 0x56: /* "RENAME" - RENAME FILE */
TRACE("RENAME %s to %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi));
bSetDOSExtendedError =
(!MoveFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi)));
break;
case 0x57: /* FILE DATE AND TIME */
switch (AL_reg(context))
{
case 0x00: /* Get */
{
FILETIME filetime;
TRACE("GET FILE DATE AND TIME for handle %d\n",
BX_reg(context));
if (!GetFileTime( DosFileHandleToWin32Handle(BX_reg(context)), NULL, NULL, &filetime ))
bSetDOSExtendedError = TRUE;
else FileTimeToDosDateTime( &filetime, &DX_reg(context),
&CX_reg(context) );
}
break;
case 0x01: /* Set */
{
FILETIME filetime;
TRACE("SET FILE DATE AND TIME for handle %d\n",
BX_reg(context));
DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
&filetime );
bSetDOSExtendedError =
(!SetFileTime( DosFileHandleToWin32Handle(BX_reg(context)),
NULL, NULL, &filetime ));
}
break;
}
break;
case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
TRACE("GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
AL_reg(context));
switch (AL_reg(context))
{
case 0x00:
AX_reg(context) = 1;
break;
case 0x02:
AX_reg(context) = 0;
break;
case 0x01:
case 0x03:
break;
}
RESET_CFLAG(context);
break;
case 0x5a: /* CREATE TEMPORARY FILE */
TRACE("CREATE TEMPORARY FILE\n");
bSetDOSExtendedError = !INT21_CreateTempFile(context);
break;
case 0x5b: /* CREATE NEW FILE */
TRACE("CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
bSetDOSExtendedError = ((AX_reg(context) =
_lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
CX_reg(context) )) == (WORD)HFILE_ERROR16);
break;
case 0x5d: /* NETWORK */
FIXME("Function 0x%04x not implemented.\n", AX_reg (context));
/* Fix the following while you're at it. */
SetLastError( ER_NoNetwork );
bSetDOSExtendedError = TRUE;
break;
case 0x5e:
bSetDOSExtendedError = INT21_networkfunc (context);
break;
case 0x5f: /* NETWORK */
switch (AL_reg(context))
{
case 0x07: /* ENABLE DRIVE */
TRACE("ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
if (!DRIVE_Enable( DL_reg(context) ))
{
SetLastError( ERROR_INVALID_DRIVE );
bSetDOSExtendedError = TRUE;
}
break;
case 0x08: /* DISABLE DRIVE */
TRACE("DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
if (!DRIVE_Disable( DL_reg(context) ))
{
SetLastError( ERROR_INVALID_DRIVE );
bSetDOSExtendedError = TRUE;
}
break;
default:
/* network software not installed */
TRACE("NETWORK function AX=%04x not implemented\n",AX_reg(context));
SetLastError( ER_NoNetwork );
bSetDOSExtendedError = TRUE;
break;
}
break;
case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
TRACE("TRUENAME %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Esi));
{
if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Esi), 128,
CTX_SEG_OFF_TO_LIN(context, context->SegEs,
context->Edi),NULL))
bSetDOSExtendedError = TRUE;
else AX_reg(context) = 0;
}
break;
case 0x61: /* UNUSED */
case 0x63: /* misc. language support */
switch (AL_reg(context)) {
case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
INT21_GetDBCSLeadTable(context);
break;
}
break;
case 0x64: /* OS/2 DOS BOX */
INT_BARF( context, 0x21 );
SET_CFLAG(context);
break;
case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
TRACE("GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
BX_reg(context), DX_reg(context));
switch (AL_reg(context)) {
case 0x01:
TRACE("\tget general internationalization info\n");
dataptr[0] = 0x1;
*(WORD*)(dataptr+1) = 41;
*(WORD*)(dataptr+3) = GetSystemDefaultLangID();
*(WORD*)(dataptr+5) = CodePage;
*(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
break;
case 0x06:
TRACE("\tget pointer to collating sequence table\n");
dataptr[0] = 0x06;
*(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
CX_reg(context) = 258;/*FIXME: size of table?*/
break;
case 0x20:
TRACE("\tConvert char to uppercase\n");
DL_reg(context) = toupper(DL_reg(context));
break;
case 0x21:
TRACE("\tconvert string to uppercase with length\n");
{
char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
WORD len = CX_reg(context);
while (len--) { *ptr = toupper(*ptr); ptr++; }
}
break;
case 0x22:
TRACE("\tConvert ASCIIZ string to uppercase\n");
_strupr( (LPSTR)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx) );
break;
default:
TRACE("\tunimplemented function %d\n",AL_reg(context));
INT_BARF( context, 0x21 );
SET_CFLAG(context);
break;
}
break;
}
case 0x66: /* GLOBAL CODE PAGE TABLE */
switch (AL_reg(context))
{
case 0x01:
TRACE("GET GLOBAL CODE PAGE TABLE\n");
DX_reg(context) = BX_reg(context) = CodePage;
RESET_CFLAG(context);
break;
case 0x02:
TRACE("SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
BX_reg(context),DX_reg(context));
CodePage = BX_reg(context);
RESET_CFLAG(context);
break;
}
break;
case 0x67: /* SET HANDLE COUNT */
TRACE("SET HANDLE COUNT to %d\n",BX_reg(context) );
SetHandleCount16( BX_reg(context) );
if (GetLastError()) bSetDOSExtendedError = TRUE;
break;
case 0x68: /* "FFLUSH" - COMMIT FILE */
case 0x6a: /* COMMIT FILE */
TRACE("FFLUSH/COMMIT handle %d\n",BX_reg(context));
bSetDOSExtendedError = (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ));
break;
case 0x69: /* DISK SERIAL NUMBER */
switch (AL_reg(context))
{
case 0x00:
TRACE("GET DISK SERIAL NUMBER for drive %s\n",
INT21_DriveName(BL_reg(context)));
if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
else AX_reg(context) = 0;
break;
case 0x01:
TRACE("SET DISK SERIAL NUMBER for drive %s\n",
INT21_DriveName(BL_reg(context)));
if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
else AX_reg(context) = 1;
break;
}
break;
case 0x6C: /* Extended Open/Create*/
TRACE("EXTENDED OPEN/CREATE %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edi));
bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
break;
case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
if ((GetVersion()&0xC0000004)!=0xC0000004) {
/* not supported on anything but Win95 */
TRACE("LONG FILENAME functions supported only by win95\n");
SET_CFLAG(context);
AL_reg(context) = 0;
} else
switch(AL_reg(context))
{
case 0x39: /* Create directory */
TRACE("LONG FILENAME - MAKE DIRECTORY %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
bSetDOSExtendedError = (!CreateDirectoryA(
CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx ), NULL));
/* FIXME: CreateDirectory's LastErrors will clash with the ones
* used by dos. AH=39 only returns 3 (path not found) and 5 (access
* denied), while CreateDirectory return several ones. remap some of
* them. -Marcus
*/
if (bSetDOSExtendedError) {
switch (GetLastError()) {
case ERROR_ALREADY_EXISTS:
case ERROR_FILENAME_EXCED_RANGE:
case ERROR_DISK_FULL:
SetLastError(ERROR_ACCESS_DENIED);
break;
default: break;
}
}
break;
case 0x3a: /* Remove directory */
TRACE("LONG FILENAME - REMOVE DIRECTORY %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
bSetDOSExtendedError = (!RemoveDirectoryA(
CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx )));
break;
case 0x43: /* Get/Set file attributes */
TRACE("LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
switch (BL_reg(context))
{
case 0x00: /* Get file attributes */
TRACE("\tretrieve attributes\n");
CX_reg(context) = (WORD)GetFileAttributesA(
CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx));
if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
break;
case 0x01:
TRACE("\tset attributes 0x%04x\n",CX_reg(context));
bSetDOSExtendedError = (!SetFileAttributesA(
CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Edx),
CX_reg(context) ) );
break;
default:
FIXME("Unimplemented long file name function:\n");
INT_BARF( context, 0x21 );
SET_CFLAG(context);
AL_reg(context) = 0;
break;
}
break;
case 0x47: /* Get current directory */
TRACE(" LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
INT21_DriveName(DL_reg(context)));
bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
break;
case 0x4e: /* Find first file */
TRACE(" LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
/* FIXME: use attributes in CX */
if ((AX_reg(context) = FindFirstFile16(
CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
(WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
context->Edi)))
== INVALID_HANDLE_VALUE16)
bSetDOSExtendedError = TRUE;
break;
case 0x4f: /* Find next file */
TRACE("LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
BX_reg(context));
if (!FindNextFile16( BX_reg(context),
(WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
context->Edi)))
bSetDOSExtendedError = TRUE;
break;
case 0xa0:
{
LPCSTR driveroot = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
LPSTR buffer = (LPSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
DWORD filename_len, flags;
TRACE("LONG FILENAME - GET VOLUME INFORMATION for drive having root dir '%s'.\n", driveroot);
AX_reg(context) = 0;
if (!GetVolumeInformationA( driveroot, NULL, 0, NULL, &filename_len,
&flags, buffer, 8 ))
{
INT_BARF( context, 0x21 );
SET_CFLAG(context);
break;
}
BX_reg(context) = flags | 0x4000; /* support for LFN functions */
CX_reg(context) = filename_len;
DX_reg(context) = MAX_PATH; /* FIXME: which len if DRIVE_SHORT_NAMES ? */
}
break;
case 0xa1: /* Find close */
TRACE("LONG FILENAME - FINDCLOSE for handle %d\n",
BX_reg(context));
bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
break;
case 0x60:
switch(CL_reg(context))
{
case 0x01: /* Get short filename or path */
if (!GetShortPathNameA
( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Esi),
CTX_SEG_OFF_TO_LIN(context, context->SegEs,
context->Edi), 67))
bSetDOSExtendedError = TRUE;
else AX_reg(context) = 0;
break;
case 0x02: /* Get canonical long filename or path */
if (!GetFullPathNameA
( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
context->Esi), 128,
CTX_SEG_OFF_TO_LIN(context, context->SegEs,
context->Edi),NULL))
bSetDOSExtendedError = TRUE;
else AX_reg(context) = 0;
break;
default:
FIXME("Unimplemented long file name function:\n");
INT_BARF( context, 0x21 );
SET_CFLAG(context);
AL_reg(context) = 0;
break;
}
break;
case 0x6c: /* Create or open file */
TRACE("LONG FILENAME - CREATE OR OPEN FILE %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi));
/* translate Dos 7 action to Dos 6 action */
bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
break;
case 0x3b: /* Change directory */
TRACE("LONG FILENAME - CHANGE DIRECTORY %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
context->SegDs,
context->Edx
))
) {
SET_CFLAG(context);
AL_reg(context) = GetLastError();
}
break;
case 0x41: /* Delete file */
TRACE("LONG FILENAME - DELETE FILE %s\n",
(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
context->SegDs,
context->Edx)
)) {
SET_CFLAG(context);
AL_reg(context) = GetLastError();
}
break;
case 0x56: /* Move (rename) file */
{
LPCSTR fn1 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
LPCSTR fn2 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
TRACE("LONG FILENAME - RENAME FILE %s to %s\n", fn1, fn2);
if (!MoveFileA(fn1, fn2))
{
SET_CFLAG(context);
AL_reg(context) = GetLastError();
}
}
break;
default:
FIXME("Unimplemented long file name function:\n");
INT_BARF( context, 0x21 );
SET_CFLAG(context);
AL_reg(context) = 0;
break;
}
break;
case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
case 0x72: /* MS-DOS 7 (Windows95) - ??? */
TRACE("windows95 function AX %04x\n",
AX_reg(context));
WARN(" returning unimplemented\n");
SET_CFLAG(context);
AL_reg(context) = 0;
break;
case 0x73: /* MULTIPLEXED: Win95 OSR2/Win98 FAT32 calls */
TRACE("windows95 function AX %04x\n",
AX_reg(context));
switch (AL_reg(context))
{
case 0x02: /* Get Extended Drive Parameter Block for specific drive */
/* ES:DI points to word with length of data (should be 0x3d) */
{
WORD *buffer;
struct EDPB *edpb;
DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
char root[] = "A:\\";
buffer = (WORD *)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
TRACE("Get Extended DPB: linear buffer address is %p\n", buffer);
/* validate passed-in buffer lengths */
if ((*buffer != 0x3d) || (context->Ecx != 0x3f))
{
WARN("Get Extended DPB: buffer lengths incorrect\n");
WARN("CX = %lx, buffer[0] = %x\n", context->Ecx, *buffer);
SET_CFLAG(context);
AL_reg(context) = 0x18; /* bad buffer length */
}
/* buffer checks out */
buffer++; /* skip over length word now */
if (FillInDrivePB( DX_reg(context) ) )
{
edpb = (struct EDPB *)buffer;
/* copy down the old-style DPB portion first */
memcpy(&edpb->dpb, &heap->dpb, sizeof(struct DPB));
/* now fill in the extended entries */
edpb->edpb_flags = 0;
edpb->next_edpb = 0;
edpb->free_cluster = edpb->free_cluster2 = 0;
/* determine free disk space */
*root += DOS_GET_DRIVE( DX_reg(context) );
GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
&free_clusters, &total_clusters );
edpb->clusters_free = (free_clusters&0xffff);
edpb->clusters_free_hi = free_clusters >> 16;
edpb->mirroring_flags = 0;
edpb->info_sector = 0xffff;
edpb->spare_boot_sector = 0xffff;
edpb->first_cluster = 0;
edpb->max_cluster = total_clusters;
edpb->fat_clusters = 32; /* made-up value */
edpb->root_cluster = 0;
RESET_CFLAG(context); /* clear carry */
AX_reg(context) = 0;
}
else
{
AX_reg(context) = 0x00ff;
SET_CFLAG(context);
}
}
break;
case 0x03: /* Get Extended free space on drive */
case 0x04: /* Set DPB for formatting */
case 0x05: /* extended absolute disk read/write */
FIXME("Unimplemented FAT32 int32 function %04x\n", AX_reg(context));
SET_CFLAG(context);
AL_reg(context) = 0;
break;
}
break;
case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
break;
default:
INT_BARF( context, 0x21 );
break;
} /* END OF SWITCH */
if( bSetDOSExtendedError ) /* set general error condition */
{
AX_reg(context) = GetLastError();
SET_CFLAG(context);
}
if ((context->EFlags & 0x0001))
TRACE("failed, error 0x%04lx\n", GetLastError() );
TRACE("returning: AX=%04x BX=%04x CX=%04x DX=%04x "
"SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
AX_reg(context), BX_reg(context), CX_reg(context),
DX_reg(context), SI_reg(context), DI_reg(context),
(WORD)context->SegDs, (WORD)context->SegEs,
context->EFlags);
}
/***********************************************************************
* GetSetKernelDOSProc (KERNEL.311)
*/
FARPROC16 WINAPI GetSetKernelDOSProc16(FARPROC16 DosProc)
{
FIXME("(DosProc=0x%08x): stub\n", (UINT)DosProc);
return NULL;
}
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