| /* |
| * DOS interrupt 21h handler |
| * |
| * Copyright 1993, 1994 Erik Bos |
| * Copyright 1996 Alexandre Julliard |
| * Copyright 1997 Andreas Mohr |
| * Copyright 1998 Uwe Bonnes |
| * Copyright 1998, 1999 Ove Kaaven |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #include "config.h" |
| #include "wine/port.h" |
| |
| #include <time.h> |
| #include <fcntl.h> |
| #include <stdlib.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #ifdef HAVE_SYS_FILE_H |
| # include <sys/file.h> |
| #endif |
| #include <string.h> |
| #ifdef HAVE_SYS_TIME_H |
| # include <sys/time.h> |
| #endif |
| #include <sys/types.h> |
| #ifdef HAVE_UNISTD_H |
| # include <unistd.h> |
| #endif |
| #ifdef HAVE_UTIME_H |
| # include <utime.h> |
| #endif |
| #include <ctype.h> |
| #include "windef.h" |
| #include "winbase.h" |
| #include "winreg.h" |
| #include "winternl.h" |
| #include "wingdi.h" |
| #include "winuser.h" /* SW_NORMAL */ |
| #include "wine/winbase16.h" |
| #include "winerror.h" |
| #include "drive.h" |
| #include "file.h" |
| #include "callback.h" |
| #include "msdos.h" |
| #include "miscemu.h" |
| #include "task.h" |
| #include "wine/unicode.h" |
| #include "wine/debug.h" |
| |
| WINE_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 */ |
| |
| }; |
| |
| DWORD dpbsegptr; |
| |
| struct DosHeap { |
| BYTE mediaID; |
| BYTE biosdate[8]; |
| struct DPB dpb; |
| }; |
| 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); |
| strcpy(heap->biosdate, "01/01/80"); |
| return TRUE; |
| } |
| |
| static BYTE *GetCurrentDTA( CONTEXT86 *context ) |
| { |
| TDB *pTask = GlobalLock16(GetCurrentTask()); |
| |
| /* FIXME: This assumes DTA was set correctly! */ |
| return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta), |
| (DWORD)OFFSETOF(pTask->dta) ); |
| } |
| |
| |
| static 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, §or_bytes, |
| &free_clusters, &total_clusters )) return 0; |
| SET_AX( context, cluster_sectors ); |
| SET_BX( context, free_clusters ); |
| SET_CX( context, sector_bytes ); |
| SET_DX( 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; |
| SET_BX( 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 )) |
| { |
| SET_AL( context, 0x00 ); |
| context->SegDs = SELECTOROF(dpbsegptr); |
| SET_BX( context, OFFSETOF(dpbsegptr) ); |
| } |
| else |
| { |
| SET_AX( context, 0x00ff ); |
| } |
| } |
| |
| |
| 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 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 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 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 */ |
| SET_AX( 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 *s; |
| WCHAR *buffer; |
| WCHAR fcbW[12]; |
| INT buffer_len, len; |
| |
| SET_AL( context, 0xff ); /* failed */ |
| |
| TRACE("filename: '%s'\n", filename); |
| |
| s = filename; |
| len = 0; |
| while (*s) |
| { |
| if ((*s != ' ') && (*s != '\r') && (*s != '\n')) |
| { |
| s++; |
| len++; |
| } |
| else |
| break; |
| } |
| |
| buffer_len = MultiByteToWideChar(CP_OEMCP, 0, filename, len, NULL, 0); |
| buffer = HeapAlloc( GetProcessHeap(), 0, (buffer_len + 1) * sizeof(WCHAR)); |
| len = MultiByteToWideChar(CP_OEMCP, 0, filename, len, buffer, buffer_len); |
| buffer[len] = 0; |
| DOSFS_ToDosFCBFormat(buffer, fcbW); |
| HeapFree(GetProcessHeap(), 0, buffer); |
| WideCharToMultiByte(CP_OEMCP, 0, fcbW, 12, fcb + 1, 12, NULL, NULL); |
| *fcb = 0; |
| TRACE("FCB: '%s'\n", fcb + 1); |
| |
| SET_AL( context, ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0 ); |
| |
| /* point DS:SI to first unparsed character */ |
| SET_SI( context, context->Esi + (int)s - (int)filename ); |
| } |
| |
| |
| /* Many calls translate a drive argument like this: |
| drive number (00h = default, 01h = A:, etc) |
| */ |
| static const char *INT21_DriveName(int drive) |
| { |
| if (drive > 0) return wine_dbg_sprintf( "%c:", 'A' + drive - 1 ); |
| return "default"; |
| } |
| |
| 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 int INT21_FindFirst( CONTEXT86 *context ) |
| { |
| char *p; |
| const char *path; |
| DOS_FULL_NAME full_name; |
| FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context); |
| WCHAR pathW[MAX_PATH]; |
| WCHAR maskW[12]; |
| |
| path = (const char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx); |
| MultiByteToWideChar(CP_OEMCP, 0, path, -1, pathW, MAX_PATH); |
| |
| dta->unixPath = NULL; |
| if (!DOSFS_GetFullName( pathW, FALSE, &full_name )) |
| { |
| SET_AX( context, GetLastError() ); |
| SET_CFLAG(context); |
| return 0; |
| } |
| dta->unixPath = HeapAlloc( GetProcessHeap(), 0, strlen(full_name.long_name)+1 ); |
| strcpy( dta->unixPath, full_name.long_name ); |
| p = strrchr( dta->unixPath, '/' ); |
| *p = '\0'; |
| |
| MultiByteToWideChar(CP_OEMCP, 0, p + 1, -1, pathW, MAX_PATH); |
| |
| /* Note: terminating NULL in dta->mask overwrites dta->search_attr |
| * (doesn't matter as it is set below anyway) |
| */ |
| if (!DOSFS_ToDosFCBFormat( pathW, maskW )) |
| { |
| HeapFree( GetProcessHeap(), 0, dta->unixPath ); |
| dta->unixPath = NULL; |
| SetLastError( ERROR_FILE_NOT_FOUND ); |
| SET_AX( context, ERROR_FILE_NOT_FOUND ); |
| SET_CFLAG(context); |
| return 0; |
| } |
| WideCharToMultiByte(CP_OEMCP, 0, maskW, 12, dta->mask, sizeof(dta->mask), NULL, NULL); |
| 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; |
| |
| SET_AX( context, _lcreat16_uniq( name, 0 ) ); |
| if (AX_reg(context) != HFILE_ERROR16) |
| { |
| TRACE("created %s\n", name ); |
| return TRUE; |
| } |
| if (GetLastError() != ERROR_FILE_EXISTS) return FALSE; |
| } |
| } |
| |
| |
| 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 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; |
| SET_CH( context, 1 ); /* Valid */ |
| SET_CL( context, 1 ); /* NETbios number??? */ |
| TRACE("returning %s\n", debugstr_an (dst, 16)); |
| return FALSE; |
| } |
| } |
| |
| default: |
| SetLastError( ER_NoNetwork ); |
| return TRUE; |
| } |
| } |
| |
| |
| /*********************************************************************** |
| * INT_Int21Handler |
| */ |
| void WINAPI INT_Int21Handler( CONTEXT86 *context ) |
| { |
| BOOL bSetDOSExtendedError = FALSE; |
| |
| switch(AH_reg(context)) |
| { |
| 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)) |
| { |
| SET_AL( context, 0xff ); |
| break; |
| } |
| /* else fall through */ |
| |
| case 0x12: /* FIND NEXT MATCHING FILE USING FCB */ |
| SET_AL( context, INT21_FindNextFCB(context) ? 0x00 : 0xff ); |
| break; |
| |
| case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */ |
| SET_DL( context, 0 ); |
| if (!INT21_GetDriveAllocInfo(context)) SET_AX( context, 0xffff ); |
| break; |
| |
| case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */ |
| if (!INT21_GetDriveAllocInfo(context)) SET_AX( context, 0xffff ); |
| break; |
| |
| case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */ |
| GetDrivePB(context, DRIVE_GetCurrentDrive()); |
| break; |
| |
| case 0x29: /* PARSE FILENAME INTO FCB */ |
| INT21_ParseFileNameIntoFCB(context); |
| 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 0x36: /* GET FREE DISK SPACE */ |
| TRACE("GET FREE DISK SPACE FOR DRIVE %s\n", |
| INT21_DriveName( DL_reg(context))); |
| if (!INT21_GetFreeDiskSpace(context)) SET_AX( context, 0xffff ); |
| break; |
| |
| case 0x44: /* IOCTL */ |
| switch (AL_reg(context)) |
| { |
| case 0x0d: |
| TRACE("IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n", |
| INT21_DriveName( BL_reg(context))); |
| bSetDOSExtendedError = ioctlGenericBlkDevReq(context); |
| 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); |
| SET_AX( context, 0x000F ); /* invalid drive */ |
| } |
| break; |
| } |
| } |
| 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 ); |
| SET_AX( context, ERROR_NO_MORE_FILES ); |
| SET_CFLAG(context); |
| } |
| else SET_AX( context, 0 ); /* OK */ |
| break; |
| |
| case 0x5a: /* CREATE TEMPORARY FILE */ |
| TRACE("CREATE TEMPORARY FILE\n"); |
| bSetDOSExtendedError = !INT21_CreateTempFile(context); |
| 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 SET_AX( context, 0 ); |
| } |
| 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 SET_AX( 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 SET_AX( context, 1 ); |
| break; |
| } |
| break; |
| |
| case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */ |
| switch(AL_reg(context)) |
| { |
| 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 */ |
| SET_AX( 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))); |
| if (AX_reg(context) == 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); |
| SET_AX( context, 0 ); |
| if (!GetVolumeInformationA( driveroot, NULL, 0, NULL, &filename_len, |
| &flags, buffer, 8 )) |
| { |
| INT_BARF( context, 0x21 ); |
| SET_CFLAG(context); |
| break; |
| } |
| SET_BX( context, flags | 0x4000 ); /* support for LFN functions */ |
| SET_CX( context, filename_len ); |
| SET_DX( 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 SET_AX( 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 SET_AX( context, 0 ); |
| break; |
| default: |
| FIXME("Unimplemented long file name function:\n"); |
| INT_BARF( context, 0x21 ); |
| SET_CFLAG(context); |
| SET_AL( context, 0 ); |
| break; |
| } |
| break; |
| |
| default: |
| FIXME("Unimplemented long file name function:\n"); |
| INT_BARF( context, 0x21 ); |
| SET_CFLAG(context); |
| SET_AL( context, 0 ); |
| break; |
| } |
| 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); |
| SET_AL( 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, §or_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 */ |
| SET_AX( context, 0 ); |
| } |
| else |
| { |
| SET_AX( 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); |
| SET_AL( context, 0 ); |
| break; |
| } |
| |
| break; |
| |
| default: |
| INT_BARF( context, 0x21 ); |
| break; |
| |
| } /* END OF SWITCH */ |
| |
| if( bSetDOSExtendedError ) /* set general error condition */ |
| { |
| SET_AX( context, GetLastError() ); |
| SET_CFLAG(context); |
| } |
| } |
