| /* |
| * (c) 1993, 1994 Erik Bos |
| */ |
| |
| #include <time.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <sys/file.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <sys/time.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| #include <utime.h> |
| #include <ctype.h> |
| #include "dos_fs.h" |
| #include "drive.h" |
| #include "file.h" |
| #include "windows.h" |
| #include "msdos.h" |
| #include "registers.h" |
| #include "ldt.h" |
| #include "task.h" |
| #include "options.h" |
| #include "miscemu.h" |
| #include "xmalloc.h" |
| #include "stddebug.h" |
| #include "debug.h" |
| #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) */ |
| }; |
| |
| WORD CodePage = 437; |
| struct DPB *dpb; |
| DWORD dpbsegptr; |
| |
| struct DosHeap { |
| BYTE InDosFlag; |
| BYTE mediaID; |
| BYTE biosdate[8]; |
| struct DPB dpb; |
| }; |
| static struct DosHeap *heap; |
| static WORD DosHeapHandle; |
| |
| WORD sharing_retries = 3; /* number of retries at sharing violation */ |
| WORD sharing_pause = 1; /* pause between retries */ |
| |
| extern char TempDirectory[]; |
| |
| BYTE *GetCurrentDTA(void) |
| { |
| TDB *pTask = (TDB *)GlobalLock( GetCurrentTask() ); |
| return (BYTE *)PTR_SEG_TO_LIN( pTask->dta ); |
| } |
| |
| |
| void ChopOffWhiteSpace(char *string) |
| { |
| int length; |
| |
| for (length = strlen(string) ; length ; length--) |
| if (string[length] == ' ') |
| string[length] = '\0'; |
| } |
| |
| static void CreateBPB(int drive, BYTE *data) |
| { |
| 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); |
| 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); |
| setword(&data[0x1f], 80); |
| data[0x21] = 7; |
| setword(&data[0x22], 2); |
| } |
| } |
| |
| static int INT21_GetFreeDiskSpace(struct sigcontext_struct *context) |
| { |
| DWORD size, available; |
| int drive = DOS_GET_DRIVE( DL_reg(context) ); |
| |
| if (!DRIVE_GetFreeSpace(drive, &size, &available)) return 0; |
| |
| CX_reg(context) = 512; /* bytes per sector */ |
| size /= 512; |
| available /= 512; |
| AX_reg(context) = 1; /* sectors per cluster */ |
| while (AX_reg(context) * 65530 < size) AX_reg(context) *= 2; |
| BX_reg(context) = available / AX_reg(context); /* free clusters */ |
| DX_reg(context) = size / AX_reg(context); /* total clusters */ |
| return 1; |
| } |
| |
| static int INT21_GetDriveAllocInfo(struct sigcontext_struct *context) |
| { |
| if (!INT21_GetFreeDiskSpace( context )) return 0; |
| heap->mediaID = 0xf0; |
| DS_reg(context) = DosHeapHandle; |
| BX_reg(context) = (int)&heap->mediaID - (int)heap; |
| return 1; |
| } |
| |
| static void GetDrivePB(struct sigcontext_struct *context, int drive) |
| { |
| if(!DRIVE_IsValid(drive)) |
| { |
| DOS_ERROR( ER_InvalidDrive, EC_MediaError, SA_Abort, EL_Disk ); |
| AX_reg(context) = 0x00ff; |
| } |
| else |
| { |
| dprintf_int(stddeb, "int21: GetDrivePB not fully implemented.\n"); |
| |
| /* 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 |
| */ |
| dpb->drive_num = dpb->unit_num = drive; /* The same? */ |
| dpb->sector_size = 512; |
| dpb->high_sector = 1; |
| dpb->shift = drive < 2 ? 0 : 6; /* 6 for HD, 0 for floppy */ |
| dpb->reserved = 0; |
| dpb->num_FAT = 1; |
| dpb->dir_entries = 2; |
| dpb->first_data = 2; |
| dpb->high_cluster = 64000; |
| dpb->sectors_in_FAT = 1; |
| dpb->start_dir = 1; |
| dpb->driver_head = 0; |
| dpb->media_ID = (drive > 1) ? 0xF8 : 0xF0; |
| dpb->access_flag = 0; |
| dpb->next = 0; |
| dpb->free_search = 0; |
| dpb->free_clusters = 0xFFFF; /* unknown */ |
| |
| AL_reg(context) = 0x00; |
| DS_reg(context) = SELECTOROF(dpbsegptr); |
| BX_reg(context) = OFFSETOF(dpbsegptr); |
| } |
| } |
| |
| |
| static void ioctlGetDeviceInfo(struct sigcontext_struct *context) |
| { |
| dprintf_int (stddeb, "int21: ioctl (%d, GetDeviceInfo)\n", BX_reg(context)); |
| |
| DX_reg(context) = 0x0942; |
| /* 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 |
| */ |
| RESET_CFLAG(context); |
| } |
| |
| static void ioctlGenericBlkDevReq(struct sigcontext_struct *context) |
| { |
| BYTE *dataptr = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context)); |
| int drive = DOS_GET_DRIVE( BL_reg(context) ); |
| |
| if (!DRIVE_IsValid(drive)) |
| { |
| DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk ); |
| AX_reg(context) = DOS_ExtendedError; |
| SET_CFLAG(context); |
| return; |
| } |
| |
| if (CH_reg(context) != 0x08) |
| { |
| INT_BARF( context, 0x21 ); |
| return; |
| } |
| switch (CL_reg(context)) { |
| case 0x60: /* get device parameters */ |
| /* used by w4wgrp's winfile */ |
| memset(dataptr, 0, 0x26); |
| 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]); |
| RESET_CFLAG(context); |
| return; |
| default: |
| INT_BARF( context, 0x21 ); |
| } |
| } |
| |
| static void GetSystemDate(struct sigcontext_struct *context) |
| { |
| struct tm *now; |
| time_t ltime; |
| |
| ltime = time(NULL); |
| now = localtime(<ime); |
| |
| CX_reg(context) = now->tm_year + 1900; |
| DX_reg(context) = ((now->tm_mon + 1) << 8) | now->tm_mday; |
| AX_reg(context) = now->tm_wday; |
| } |
| |
| static void INT21_GetSystemTime(struct sigcontext_struct *context) |
| { |
| struct tm *now; |
| struct timeval tv; |
| time_t seconds; |
| |
| gettimeofday(&tv,NULL); /* Note use of gettimeofday(), instead of time() */ |
| seconds = tv.tv_sec; |
| now = localtime(&seconds); |
| |
| CX_reg(context) = (now->tm_hour<<8) | now->tm_min; |
| DX_reg(context) = (now->tm_sec<<8) | tv.tv_usec/10000; |
| /* Note hundredths of seconds */ |
| } |
| |
| static void CreateFile(struct sigcontext_struct *context) |
| { |
| AX_reg(context) = _lcreat( PTR_SEG_OFF_TO_LIN( DS_reg(context), |
| DX_reg(context) ), CX_reg(context) ); |
| if (AX_reg(context) == (WORD)HFILE_ERROR) |
| { |
| AX_reg(context) = DOS_ExtendedError; |
| SET_CFLAG(context); |
| } |
| } |
| |
| |
| void OpenExistingFile(struct sigcontext_struct *context) |
| { |
| AX_reg(context) = _lopen( PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context)), |
| AL_reg(context) ); |
| if (AX_reg(context) == (WORD)HFILE_ERROR) |
| { |
| AX_reg(context) = DOS_ExtendedError; |
| SET_CFLAG(context); |
| } |
| #if 0 |
| int handle; |
| int mode; |
| int lock; |
| |
| dprintf_int (stddeb, "int21: open (%s, %d) = %d\n", |
| DOS_GetUnixFileName(PTR_SEG_OFF_TO_LIN(DS_reg(context), |
| DX_reg(context))), mode, handle); |
| |
| switch (AX_reg(context) & 0x0070) |
| { |
| case 0x00: /* compatability mode */ |
| case 0x40: /* DENYNONE */ |
| lock = -1; |
| break; |
| |
| case 0x30: /* DENYREAD */ |
| dprintf_int(stddeb, |
| "OpenExistingFile (%s): DENYREAD changed to DENYALL\n", |
| (char *)PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context))); |
| case 0x10: /* DENYALL */ |
| lock = LOCK_EX; |
| break; |
| |
| case 0x20: /* DENYWRITE */ |
| lock = LOCK_SH; |
| break; |
| |
| default: |
| lock = -1; |
| } |
| |
| if (lock != -1) |
| { |
| |
| int result,retries=sharing_retries; |
| { |
| #if defined(__svr4__) || defined(_SCO_DS) |
| printf("Should call flock and needs porting to lockf\n"); |
| result = 0; |
| retries = 0; |
| #else |
| result = flock(handle, lock | LOCK_NB); |
| #endif |
| if ( retries && (!result) ) |
| { |
| int i; |
| for(i=0;i<32768*((int)sharing_pause);i++) |
| result++; /* stop the optimizer */ |
| for(i=0;i<32768*((int)sharing_pause);i++) |
| result--; |
| } |
| } |
| while( (!result) && (!(retries--)) ); |
| |
| if(result) |
| { |
| errno_to_doserr(); |
| AX_reg(context) = ExtendedError; |
| close(handle); |
| SET_CFLAG(context); |
| return; |
| } |
| |
| } |
| |
| Error (0,0,0); |
| AX_reg(context) = handle; |
| RESET_CFLAG(context); |
| #endif |
| } |
| |
| static void CloseFile(struct sigcontext_struct *context) |
| { |
| if ((AX_reg(context) = _lclose( BX_reg(context) )) != 0) |
| { |
| AX_reg(context) = DOS_ExtendedError; |
| SET_CFLAG(context); |
| } |
| } |
| |
| void ExtendedOpenCreateFile(struct sigcontext_struct *context) |
| { |
| BYTE action=DL_reg(context); |
| dprintf_int(stddeb, "int21: extended open/create: file= %s \n", |
| DOSFS_GetUnixFileName(PTR_SEG_OFF_TO_LIN(DS_reg(context),SI_reg(context)),FALSE)); |
| /* 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 ((EFL_reg(context) & 0x0001)==0) |
| { /* It exists */ |
| dprintf_int(stddeb, "int21: extended open/create %s exists \n", |
| DOSFS_GetUnixFileName(PTR_SEG_OFF_TO_LIN(DS_reg(context),SI_reg(context)),TRUE)); |
| /* Now decide what do do */ |
| if ((action & 0x07)== 0) |
| { |
| BX_reg(context) = AX_reg(context); |
| CloseFile(context); |
| AX_reg(context) = 0x0050;/*File exists*/ |
| CX_reg(context) = 0; |
| SET_CFLAG(context); |
| dprintf_int(stddeb, "int21: extended open/create: failed because file exixts \n"); |
| return; |
| } |
| if ((action & 0x07)== 2) { |
| /* Truncate it, but first check if opend for write */ |
| if ((BL_reg(context) & 0x0007)== 0) { |
| BX_reg(context) = AX_reg(context); |
| CloseFile(context); |
| dprintf_int(stddeb, "int21: extended open/create: failed, trunc on ro file"); |
| AX_reg(context) = 0x000C;/*Access code invalid*/ |
| CX_reg(context) = 0; |
| SET_CFLAG(context); |
| return; |
| } |
| /* Shuffle arguments to call CloseFile */ |
| dprintf_int(stddeb, "int21: extended open/create: Closing before truncate\n"); |
| BX_reg(context) = AX_reg(context); |
| /* BX and DX should be preserved */ |
| CloseFile(context); |
| if (EFL_reg(context) & 0x0001) { |
| dprintf_int(stddeb, "int21: extended open/create: close before trunc failed"); |
| AX_reg(context) = 0x0019;/*Seek Error*/ |
| CX_reg(context) = 0; |
| SET_CFLAG(context); |
| } |
| /* Shuffle arguments to call CreateFile */ |
| dprintf_int(stddeb, "int21: extended open/create: Truncating\n"); |
| AL_reg(context) = BL_reg(context); |
| /* CX is still the same */ |
| DX_reg(context) = SI_reg(context); |
| CreateFile(context); |
| if (EFL_reg(context) & 0x0001) { /*no file open, flags set */ |
| dprintf_int(stddeb, "int21: extended open/create: truncfailed"); |
| return; |
| } |
| CX_reg(context) = 3; |
| return; |
| } |
| CX_reg(context) = 1; |
| return; |
| } |
| else /* file does not exist */ |
| { |
| RESET_CFLAG(context); /* was set by OpenExistingFile(context) */ |
| dprintf_int(stddeb, "int21: extended open/create %s dosen't exists \n", |
| DOSFS_GetUnixFileName(PTR_SEG_OFF_TO_LIN(DS_reg(context),SI_reg(context)),FALSE)); |
| if ((action & 0xF0)== 0) { |
| CX_reg(context) = 0; |
| SET_CFLAG(context); |
| dprintf_int(stddeb, "int21: extended open/create: failed, file dosen't exist\n"); |
| return; |
| } |
| /* Shuffle arguments to call CreateFile */ |
| dprintf_int(stddeb, "int21: extended open/create: Creating\n"); |
| AL_reg(context) = BL_reg(context); |
| /* CX should still be the same */ |
| DX_reg(context) = SI_reg(context); |
| CreateFile(context); |
| if (EFL_reg(context) & 0x0001) { /*no file open, flags set */ |
| dprintf_int(stddeb, "int21: extended open/create: create failed\n"); |
| return; |
| } |
| CX_reg(context) = 2; |
| return; |
| } |
| } |
| |
| |
| static int INT21_RenameFile(struct sigcontext_struct *context) |
| { |
| const char *newname, *oldname; |
| char *buffer; |
| |
| /* FIXME: should not rename over an existing file */ |
| dprintf_int(stddeb,"int21: renaming %s to %s\n", |
| (char *)PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context)), |
| (char *)PTR_SEG_OFF_TO_LIN(ES_reg(context),DI_reg(context))); |
| |
| oldname = DOSFS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(DS_reg(context), |
| DX_reg(context)), TRUE ); |
| if (!oldname) return 0; |
| buffer = xstrdup( oldname ); |
| newname = DOSFS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(ES_reg(context), |
| DI_reg(context)), FALSE ); |
| if (!newname) |
| { |
| free( buffer ); |
| return 0; |
| } |
| |
| if (rename( buffer, newname) == -1) |
| { |
| FILE_SetDosError(); |
| free( buffer ); |
| return 0; |
| } |
| free( buffer ); |
| return 1; |
| } |
| |
| |
| static void INT21_ChangeDir(struct sigcontext_struct *context) |
| { |
| int drive; |
| char *dirname = PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context)); |
| |
| dprintf_int(stddeb,"int21: changedir %s\n", dirname); |
| if (dirname[0] && (dirname[1] == ':')) |
| { |
| drive = toupper(dirname[0]) - 'A'; |
| dirname += 2; |
| } |
| else drive = DRIVE_GetCurrentDrive(); |
| if (!DRIVE_Chdir( drive, dirname )) |
| { |
| AX_reg(context) = DOS_ExtendedError; |
| SET_CFLAG(context); |
| } |
| } |
| |
| |
| static int INT21_FindFirst(struct sigcontext_struct *context) |
| { |
| const char *path, *unixPath, *mask; |
| char *p; |
| FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(); |
| |
| path = (const char *)PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context)); |
| dta->unixPath = NULL; |
| if (!(unixPath = DOSFS_GetUnixFileName( path, FALSE ))) |
| { |
| AX_reg(context) = DOS_ExtendedError; |
| SET_CFLAG(context); |
| return 0; |
| } |
| dta->unixPath = xstrdup( unixPath ); |
| p = strrchr( dta->unixPath, '/' ); |
| *p = '\0'; |
| if (!(mask = DOSFS_ToDosFCBFormat( p + 1 ))) |
| { |
| free( dta->unixPath ); |
| dta->unixPath = NULL; |
| DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk ); |
| AX_reg(context) = ER_FileNotFound; |
| SET_CFLAG(context); |
| return 0; |
| } |
| memcpy( dta->mask, mask, sizeof(dta->mask) ); |
| 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(struct sigcontext_struct *context) |
| { |
| FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(); |
| DOS_DIRENT entry; |
| int count; |
| |
| if (!dta->unixPath) return 0; |
| if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, dta->drive, |
| dta->search_attr, dta->count, &entry ))) |
| { |
| free( dta->unixPath ); |
| dta->unixPath = NULL; |
| return 0; |
| } |
| if ((int)dta->count + count > 0xffff) |
| { |
| fprintf( stderr, "Too many directory entries in %s\n", dta->unixPath ); |
| free( dta->unixPath ); |
| dta->unixPath = NULL; |
| return 0; |
| } |
| dta->count += count; |
| dta->fileattr = entry.attr; |
| dta->filetime = entry.time; |
| dta->filedate = entry.date; |
| dta->filesize = entry.size; |
| strcpy( dta->filename, DOSFS_ToDosDTAFormat( entry.name ) ); |
| return 1; |
| } |
| |
| |
| static int INT21_CreateTempFile(struct sigcontext_struct *context) |
| { |
| static int counter = 0; |
| char *name = PTR_SEG_OFF_TO_LIN( DS_reg(context), DX_reg(context) ); |
| char *p = name + strlen(name); |
| |
| for (;;) |
| { |
| sprintf( p, "wine%04x.%03d", (int)getpid(), counter ); |
| counter = (counter + 1) % 1000; |
| |
| if ((AX_reg(context) = _lcreat_uniq( name, 0 )) != (WORD)HFILE_ERROR) |
| { |
| dprintf_int( stddeb, "INT21_CreateTempFile: created %s\n", name ); |
| return 1; |
| } |
| if (DOS_ExtendedError != ER_FileExists) return 0; |
| } |
| } |
| |
| |
| static int INT21_GetCurrentDirectory(struct sigcontext_struct *context) |
| { |
| int drive = DOS_GET_DRIVE( DL_reg(context) ); |
| char *ptr = (char *)PTR_SEG_OFF_TO_LIN( DS_reg(context), SI_reg(context) ); |
| |
| if (!DRIVE_IsValid(drive)) |
| { |
| DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk ); |
| return 0; |
| } |
| |
| lstrcpyn( ptr, DRIVE_GetDosCwd(drive), 64 ); |
| if (!ptr[0]) strcpy( ptr, "\\" ); |
| return 1; |
| } |
| |
| |
| static int INT21_GetDiskSerialNumber(struct sigcontext_struct *context) |
| { |
| BYTE *dataptr = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context)); |
| int drive = DOS_GET_DRIVE( BL_reg(context) ); |
| |
| if (!DRIVE_IsValid(drive)) |
| { |
| DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk ); |
| 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(struct sigcontext_struct *context) |
| { |
| BYTE *dataptr = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context)); |
| int drive = DOS_GET_DRIVE( BL_reg(context) ); |
| |
| if (!DRIVE_IsValid(drive)) |
| { |
| DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk ); |
| 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( struct sigcontext_struct *context ) |
| { |
| BYTE *fcb = (BYTE *)PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context)); |
| FINDFILE_FCB *pFCB; |
| BYTE attr; |
| char buffer[] = "A:."; |
| const char *unixPath; |
| |
| if (*fcb == 0xff) |
| { |
| attr = fcb[6]; |
| pFCB = (FINDFILE_FCB *)(fcb + 7); |
| } |
| else |
| { |
| attr = 0; |
| pFCB = (FINDFILE_FCB *)fcb; |
| } |
| |
| buffer[0] += DOS_GET_DRIVE( pFCB->drive ); |
| pFCB->unixPath = NULL; |
| if (!(unixPath = DOSFS_GetUnixFileName( buffer, TRUE ))) return 0; |
| pFCB->unixPath = xstrdup( unixPath ); |
| pFCB->count = 0; |
| return 1; |
| } |
| |
| |
| static int INT21_FindNextFCB( struct sigcontext_struct *context ) |
| { |
| BYTE *fcb = (BYTE *)PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context)); |
| FINDFILE_FCB *pFCB; |
| DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(); |
| DOS_DIRENT entry; |
| BYTE attr; |
| int count; |
| |
| if (*fcb == 0xff) |
| { |
| 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, |
| DOS_GET_DRIVE( pFCB->drive ), attr, |
| pFCB->count, &entry ))) |
| { |
| free( pFCB->unixPath ); |
| pFCB->unixPath = NULL; |
| return 0; |
| } |
| pFCB->count += count; |
| |
| memcpy( pResult->filename, entry.name, sizeof(pResult->filename) ); |
| pResult->fileattr = entry.attr; |
| memset( pResult->reserved, 0, sizeof(pResult->reserved) ); |
| pResult->filetime = entry.time; |
| pResult->filedate = entry.date; |
| pResult->cluster = 0; /* what else? */ |
| pResult->filesize = entry.size; |
| return 1; |
| } |
| |
| |
| static void DeleteFileFCB(struct sigcontext_struct *context) |
| { |
| fprintf( stderr, "DeleteFileFCB: not implemented yet\n" ); |
| #if 0 |
| BYTE *fcb = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context)); |
| struct dosdirent *dp; |
| char temp[256], *ptr; |
| int drive = DOS_GET_DRIVE( *fcb ); |
| |
| DumpFCB( fcb ); |
| |
| temp[0] = '\\'; |
| strcpy(temp+1, DRIVE_GetDosCwd(drive)); |
| strcat(temp, "\\"); |
| strncat(temp, fcb + 1, 8); |
| ChopOffWhiteSpace(temp); |
| strncat(temp, fcb + 9, 3); |
| ChopOffWhiteSpace(temp); |
| |
| if ((dp = DOS_opendir(temp)) == NULL) { |
| Error(InvalidDrive, EC_MediaError , EL_Disk); |
| AX_reg(context) = 0xff; |
| return; |
| } |
| |
| temp[0] = '\\'; |
| strcpy(temp+1, DRIVE_GetDosCwd(drive) ); |
| strcat(temp, "\\"); |
| |
| ptr = temp + strlen(temp); |
| |
| while (DOS_readdir(dp) != NULL) |
| { |
| strcpy(ptr, dp->filename); |
| dprintf_int(stddeb, "int21: delete file %s\n", temp); |
| /* unlink(DOS_GetUnixFileName(temp)); */ |
| } |
| DOS_closedir(dp); |
| AX_reg(context) = 0; |
| #endif |
| } |
| |
| static void RenameFileFCB(struct sigcontext_struct *context) |
| { |
| fprintf( stderr, "RenameFileFCB: not implemented yet\n" ); |
| #if 0 |
| BYTE *fcb = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context)); |
| struct dosdirent *dp; |
| char temp[256], oldname[256], newname[256], *oldnameptr, *newnameptr; |
| int drive = DOS_GET_DRIVE( *fcb ); |
| |
| DumpFCB( fcb ); |
| |
| temp[0] = '\\'; |
| strcpy(temp+1, DRIVE_GetDosCwd(drive) ); |
| strcat(temp, "\\"); |
| strncat(temp, fcb + 1, 8); |
| ChopOffWhiteSpace(temp); |
| strncat(temp, fcb + 9, 3); |
| ChopOffWhiteSpace(temp); |
| |
| if ((dp = DOS_opendir(temp)) == NULL) { |
| Error(InvalidDrive, EC_MediaError , EL_Disk); |
| AX_reg(context) = 0xff; |
| return; |
| } |
| |
| oldname[0] = '\\'; |
| strcpy(oldname+1, DRIVE_GetDosCwd(drive) ); |
| strcat(oldname, "\\"); |
| strcpy( newname, oldname ); |
| oldnameptr = oldname + strlen(oldname); |
| newnameptr = newname + strlen(newname); |
| |
| while (DOS_readdir(dp) != NULL) |
| { |
| strcpy(oldnameptr, dp->filename); |
| strcpy(newnameptr, fcb + 1); |
| dprintf_int(stddeb, "int21: renamefile %s -> %s\n", |
| oldname, newname); |
| } |
| DOS_closedir(dp); |
| AX_reg(context) = 0; |
| #endif |
| } |
| |
| |
| |
| static void fLock (struct sigcontext_struct * context) |
| { |
| #if 0 |
| struct flock f; |
| int result,retries=sharing_retries; |
| |
| f.l_start = MAKELONG(DX_reg(context),CX_reg(context)); |
| f.l_len = MAKELONG(DI_reg(context),SI_reg(context)); |
| f.l_whence = 0; |
| f.l_pid = 0; |
| |
| switch ( AX_reg(context) & 0xff ) |
| { |
| case 0x00: /* LOCK */ |
| f.l_type = F_WRLCK; |
| break; |
| |
| case 0x01: /* UNLOCK */ |
| f.l_type = F_UNLCK; |
| break; |
| |
| default: |
| AX_reg(context) = 0x0001; |
| SET_CFLAG(context); |
| return; |
| } |
| |
| { |
| result = fcntl(BX_reg(context),F_SETLK,&f); |
| if ( retries && (!result) ) |
| { |
| int i; |
| for(i=0;i<32768*((int)sharing_pause);i++) |
| result++; /* stop the optimizer */ |
| for(i=0;i<32768*((int)sharing_pause);i++) |
| result--; |
| } |
| } |
| while( (!result) && (!(retries--)) ); |
| |
| if(result) |
| { |
| FILE_SetDosError(); |
| AX_reg(context) = DOS_ExtendedError; |
| SET_CFLAG(context); |
| return; |
| } |
| #endif |
| } |
| |
| |
| static int INT21_GetFileAttribute (struct sigcontext_struct * context) |
| { |
| const char *unixName; |
| |
| unixName = DOSFS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context)), TRUE ); |
| if (!unixName) return 0; |
| if (!FILE_Stat( unixName, &CL_reg(context), NULL, NULL, NULL )) return 0; |
| CH_reg(context) = 0; |
| dprintf_int( stddeb, "INT21_GetFileAttributes(%s) = 0x%x\n", |
| unixName, CX_reg(context) ); |
| return 1; |
| } |
| |
| |
| extern void LOCAL_PrintHeap (WORD ds); |
| |
| /*********************************************************************** |
| * DOS3Call (KERNEL.102) |
| */ |
| void DOS3Call( struct sigcontext_struct context ) |
| { |
| dprintf_int( stddeb, "int21: 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), |
| DS_reg(&context), ES_reg(&context), EFL_reg(&context)); |
| |
| if (AH_reg(&context) == 0x59) /* Get extended error info */ |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| BH_reg(&context) = DOS_ErrorClass; |
| BL_reg(&context) = DOS_ErrorAction; |
| CH_reg(&context) = DOS_ErrorLocus; |
| return; |
| } |
| |
| DOS_ERROR( 0, 0, 0, 0 ); |
| RESET_CFLAG(&context); /* Not sure if this is a good idea */ |
| |
| switch(AH_reg(&context)) |
| { |
| case 0x00: /* TERMINATE PROGRAM */ |
| TASK_KillCurrentTask( 0 ); |
| break; |
| |
| case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */ |
| case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */ |
| case 0x03: /* READ CHARACTER FROM STDAUX */ |
| case 0x04: /* WRITE CHARACTER TO STDAUX */ |
| case 0x05: /* WRITE CHARACTER TO PRINTER */ |
| case 0x06: /* DIRECT CONSOLE IN/OUTPUT */ |
| case 0x07: /* DIRECT CHARACTER INPUT, WITHOUT ECHO */ |
| case 0x08: /* CHARACTER INPUT WITHOUT ECHO */ |
| case 0x09: /* WRITE STRING TO STANDARD OUTPUT */ |
| case 0x0a: /* BUFFERED INPUT */ |
| case 0x0b: /* GET STDIN STATUS */ |
| case 0x0c: /* FLUSH BUFFER AND READ STANDARD INPUT */ |
| 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 */ |
| case 0x29: /* PARSE FILENAME INTO FCB */ |
| case 0x2e: /* SET VERIFY FLAG */ |
| case 0x37: /* "SWITCHAR" - GET SWITCH CHARACTER |
| "SWITCHAR" - SET SWITCH CHARACTER |
| "AVAILDEV" - SPECIFY \DEV\ PREFIX USE */ |
| case 0x54: /* GET VERIFY FLAG */ |
| INT_BARF( &context, 0x21 ); |
| 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 */ |
| RESET_CFLAG(&context); /* dos 6+ only */ |
| break; |
| |
| case 0x0e: /* SELECT DEFAULT DRIVE */ |
| DRIVE_SetCurrentDrive( DL_reg(&context) ); |
| AL_reg(&context) = MAX_DOS_DRIVES; |
| break; |
| |
| case 0x11: /* FIND FIRST MATCHING FILE USING FCB */ |
| 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 = (TDB *)GlobalLock( GetCurrentTask() ); |
| pTask->dta = MAKELONG( DX_reg(&context), DS_reg(&context) ); |
| dprintf_int(stddeb, "int21: 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_SetHandler( AL_reg(&context), |
| MAKELONG( DX_reg(&context), DS_reg(&context) ) ); |
| break; |
| |
| case 0x2a: /* GET SYSTEM DATE */ |
| GetSystemDate(&context); |
| break; |
| |
| case 0x2b: /* SET SYSTEM DATE */ |
| fprintf( stdnimp, "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 */ |
| fprintf( stdnimp, "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 */ |
| { |
| TDB *pTask = (TDB *)GlobalLock( GetCurrentTask() ); |
| ES_reg(&context) = SELECTOROF( pTask->dta ); |
| BX_reg(&context) = OFFSETOF( pTask->dta ); |
| } |
| break; |
| |
| case 0x30: /* GET DOS VERSION */ |
| AX_reg(&context) = DOSVERSION; |
| BX_reg(&context) = 0x0012; /* 0x123456 is Wine's serial # */ |
| CX_reg(&context) = 0x3456; |
| break; |
| |
| case 0x31: /* TERMINATE AND STAY RESIDENT */ |
| INT_BARF( &context, 0x21 ); |
| break; |
| |
| case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */ |
| GetDrivePB(&context, DOS_GET_DRIVE( DL_reg(&context) ) ); |
| break; |
| |
| case 0x33: /* MULTIPLEXED */ |
| switch (AL_reg(&context)) |
| { |
| case 0x00: /* GET CURRENT EXTENDED BREAK STATE */ |
| DL_reg(&context) = 0; |
| break; |
| |
| case 0x01: /* SET EXTENDED BREAK STATE */ |
| break; |
| |
| case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/ |
| DL_reg(&context) = 0; |
| break; |
| |
| case 0x05: /* GET BOOT DRIVE */ |
| DL_reg(&context) = 2; |
| /* c: is Wine's bootdrive */ |
| break; |
| |
| case 0x06: /* GET TRUE VERSION NUMBER */ |
| BX_reg(&context) = DOSVERSION; |
| DX_reg(&context) = 0x00; |
| break; |
| |
| default: |
| INT_BARF( &context, 0x21 ); |
| break; |
| } |
| break; |
| |
| case 0x34: /* GET ADDRESS OF INDOS FLAG */ |
| ES_reg(&context) = DosHeapHandle; |
| BX_reg(&context) = (int)&heap->InDosFlag - (int)heap; |
| break; |
| |
| case 0x35: /* GET INTERRUPT VECTOR */ |
| { |
| SEGPTR addr = INT_GetHandler( AL_reg(&context) ); |
| ES_reg(&context) = SELECTOROF(addr); |
| BX_reg(&context) = OFFSETOF(addr); |
| } |
| break; |
| |
| case 0x36: /* GET FREE DISK SPACE */ |
| if (!INT21_GetFreeDiskSpace(&context)) AX_reg(&context) = 0xffff; |
| break; |
| |
| case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */ |
| AX_reg(&context) = 0x02; /* no country support available */ |
| SET_CFLAG(&context); |
| break; |
| |
| case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */ |
| if (!FILE_MakeDir( PTR_SEG_OFF_TO_LIN( DS_reg(&context), |
| DX_reg(&context) ))) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */ |
| if (!FILE_RemoveDir( PTR_SEG_OFF_TO_LIN( DS_reg(&context), |
| DX_reg(&context) ))) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */ |
| INT21_ChangeDir(&context); |
| break; |
| |
| case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */ |
| AX_reg(&context) = _lcreat( PTR_SEG_OFF_TO_LIN( DS_reg(&context), |
| DX_reg(&context) ), CX_reg(&context) ); |
| if (AX_reg(&context) == (WORD)HFILE_ERROR) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x3d: /* "OPEN" - OPEN EXISTING FILE */ |
| OpenExistingFile(&context); |
| break; |
| |
| case 0x3e: /* "CLOSE" - CLOSE FILE */ |
| if ((AX_reg(&context) = _lclose( BX_reg(&context) )) != 0) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */ |
| { |
| LONG result = _hread( BX_reg(&context), |
| (SEGPTR)MAKELONG( DX_reg(&context), |
| DS_reg(&context) ), |
| CX_reg(&context) ); |
| if (result == -1) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| else AX_reg(&context) = (WORD)result; |
| } |
| break; |
| |
| case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */ |
| { |
| LONG result = _hwrite( BX_reg(&context), |
| PTR_SEG_OFF_TO_LIN( DS_reg(&context), |
| DX_reg(&context) ), |
| CX_reg(&context) ); |
| if (result == -1) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| else AX_reg(&context) = (WORD)result; |
| } |
| break; |
| |
| case 0x41: /* "UNLINK" - DELETE FILE */ |
| if (!FILE_Unlink( PTR_SEG_OFF_TO_LIN( DS_reg(&context), |
| DX_reg(&context) ))) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */ |
| { |
| LONG status = _llseek( BX_reg(&context), |
| MAKELONG(DX_reg(&context),CX_reg(&context)), |
| AL_reg(&context) ); |
| if (status == HFILE_ERROR) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| break; |
| } |
| AX_reg(&context) = LOWORD(status); |
| DX_reg(&context) = HIWORD(status); |
| } |
| break; |
| |
| case 0x43: /* FILE ATTRIBUTES */ |
| switch (AL_reg(&context)) |
| { |
| case 0x00: |
| if (!INT21_GetFileAttribute(&context)) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| case 0x01: |
| RESET_CFLAG(&context); |
| break; |
| } |
| break; |
| |
| case 0x44: /* IOCTL */ |
| switch (AL_reg(&context)) |
| { |
| case 0x00: |
| ioctlGetDeviceInfo(&context); |
| break; |
| |
| case 0x01: |
| break; |
| |
| case 0x08: /* Check if drive is removable. */ |
| switch(GetDriveType( DOS_GET_DRIVE( BL_reg(&context) ))) |
| { |
| case DRIVE_CANNOTDETERMINE: |
| DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk ); |
| AX_reg(&context) = ER_InvalidDrive; |
| 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 */ |
| switch(GetDriveType( DOS_GET_DRIVE( BL_reg(&context) ))) |
| { |
| case DRIVE_CANNOTDETERMINE: |
| DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk ); |
| AX_reg(&context) = ER_InvalidDrive; |
| 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 */ |
| /* 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 */ |
| if (!CX_reg(&context)) |
| { |
| AX_reg(&context) = 1; |
| SET_CFLAG(&context); |
| break; |
| } |
| sharing_pause = CX_reg(&context); |
| if (!DX_reg(&context)) |
| sharing_retries = DX_reg(&context); |
| RESET_CFLAG(&context); |
| break; |
| |
| case 0x0d: |
| ioctlGenericBlkDevReq(&context); |
| break; |
| |
| case 0x0F: /* Set logical drive mapping */ |
| /* FIXME: Not implemented at the moment, always returns error |
| */ |
| INT_BARF( &context, 0x21 ); |
| AX_reg(&context) = 0x0001; /* invalid function */ |
| SET_CFLAG(&context); |
| break; |
| |
| default: |
| INT_BARF( &context, 0x21 ); |
| break; |
| } |
| break; |
| |
| case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */ |
| if ((AX_reg(&context) = FILE_Dup(BX_reg(&context))) == (WORD)HFILE_ERROR) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */ |
| if (FILE_Dup2( BX_reg(&context), CX_reg(&context) ) == HFILE_ERROR) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x47: /* "CWD" - GET CURRENT DIRECTORY */ |
| if (!INT21_GetCurrentDirectory(&context)) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| else AX_reg(&context) = 0x0100; |
| /* intlist: many Microsoft products for Windows rely on this */ |
| break; |
| |
| case 0x48: /* ALLOCATE MEMORY */ |
| case 0x49: /* FREE MEMORY */ |
| case 0x4a: /* RESIZE MEMORY BLOCK */ |
| INT_BARF( &context, 0x21 ); |
| break; |
| |
| case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */ |
| WinExec( PTR_SEG_OFF_TO_LIN( DS_reg(&context), DX_reg(&context) ), |
| SW_NORMAL ); |
| break; |
| |
| case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */ |
| TASK_KillCurrentTask( AL_reg(&context) ); |
| break; |
| |
| case 0x4d: /* GET RETURN CODE */ |
| AX_reg(&context) = 0; /* normal exit */ |
| break; |
| |
| case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */ |
| if (!INT21_FindFirst(&context)) break; |
| /* fall through */ |
| |
| case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */ |
| if (!INT21_FindNext(&context)) |
| { |
| DOS_ERROR( ER_NoMoreFiles, EC_MediaError, SA_Abort, EL_Disk ); |
| AX_reg(&context) = ER_NoMoreFiles; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x51: /* GET PSP ADDRESS */ |
| case 0x62: /* GET PSP ADDRESS */ |
| /* FIXME: should we return the original DOS PSP upon */ |
| /* Windows startup ? */ |
| BX_reg(&context) = GetCurrentPDB(); |
| break; |
| |
| case 0x52: /* "SYSVARS" - GET LIST OF LISTS */ |
| ES_reg(&context) = 0x0; |
| BX_reg(&context) = 0x0; |
| INT_BARF( &context, 0x21 ); |
| break; |
| |
| case 0x56: /* "RENAME" - RENAME FILE */ |
| if (!INT21_RenameFile(&context)) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x57: /* FILE DATE AND TIME */ |
| switch (AL_reg(&context)) |
| { |
| case 0x00: /* Get */ |
| if (!FILE_GetDateTime( BX_reg(&context), &DX_reg(&context), |
| &CX_reg(&context), TRUE )) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x01: /* Set */ |
| if (!FILE_SetDateTime( BX_reg(&context), DX_reg(&context), |
| CX_reg(&context) )) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| } |
| break; |
| |
| case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */ |
| 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 */ |
| if (!INT21_CreateTempFile(&context)) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x5b: /* CREATE NEW FILE */ |
| if ((AX_reg(&context) = _lcreat_uniq( PTR_SEG_OFF_TO_LIN(DS_reg(&context),DX_reg(&context)), 0 )) == (WORD)HFILE_ERROR) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x5d: /* NETWORK */ |
| case 0x5e: |
| /* network software not installed */ |
| DOS_ERROR( ER_NoNetwork, EC_NotFound, SA_Abort, EL_Network ); |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| break; |
| |
| case 0x5f: /* NETWORK */ |
| switch (AL_reg(&context)) |
| { |
| case 0x07: /* ENABLE DRIVE */ |
| if (!DRIVE_Enable( DL_reg(&context) )) |
| { |
| DOS_ERROR( ER_InvalidDrive, EC_MediaError, SA_Abort, EL_Disk ); |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x08: /* DISABLE DRIVE */ |
| if (!DRIVE_Disable( DL_reg(&context) )) |
| { |
| DOS_ERROR( ER_InvalidDrive, EC_MediaError, SA_Abort, EL_Disk ); |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| default: |
| /* network software not installed */ |
| DOS_ERROR( ER_NoNetwork, EC_NotFound, SA_Abort, EL_Network ); |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| break; |
| } |
| break; |
| |
| case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */ |
| { |
| const char *truename = DOSFS_GetDosTrueName( PTR_SEG_OFF_TO_LIN(DS_reg(&context),SI_reg(&context) ), FALSE ); |
| if (!truename) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| else |
| { |
| lstrcpyn(PTR_SEG_OFF_TO_LIN(ES_reg(&context),DI_reg(&context)), |
| truename, 128 ); |
| AX_reg(&context) = 0; |
| } |
| } |
| break; |
| |
| case 0x61: /* UNUSED */ |
| case 0x63: /* UNUSED */ |
| case 0x64: /* OS/2 DOS BOX */ |
| case 0x65: /* GET EXTENDED COUNTRY INFORMATION */ |
| INT_BARF( &context, 0x21 ); |
| break; |
| |
| case 0x66: /* GLOBAL CODE PAGE TABLE */ |
| switch (AL_reg(&context)) |
| { |
| case 0x01: |
| DX_reg(&context) = BX_reg(&context) = CodePage; |
| RESET_CFLAG(&context); |
| break; |
| case 0x02: |
| CodePage = BX_reg(&context); |
| RESET_CFLAG(&context); |
| break; |
| } |
| break; |
| |
| case 0x67: /* SET HANDLE COUNT */ |
| SetHandleCount( BX_reg(&context) ); |
| if (DOS_ExtendedError) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x68: /* "FFLUSH" - COMMIT FILE */ |
| case 0x6a: /* COMMIT FILE */ |
| if (!FILE_Sync( BX_reg(&context) )) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| break; |
| |
| case 0x69: /* DISK SERIAL NUMBER */ |
| switch (AL_reg(&context)) |
| { |
| case 0x00: |
| if (!INT21_GetDiskSerialNumber(&context)) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| else AX_reg(&context) = 0; |
| break; |
| case 0x01: |
| if (!INT21_SetDiskSerialNumber(&context)) |
| { |
| AX_reg(&context) = DOS_ExtendedError; |
| SET_CFLAG(&context); |
| } |
| else AX_reg(&context) = 1; |
| break; |
| } |
| break; |
| |
| case 0x6C: /* Extended Open/Create*/ |
| ExtendedOpenCreateFile(&context); |
| break; |
| |
| case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/ |
| case 0x71: /* MS-DOS 7 (Chicago) - LONG FILENAME FUNCTIONS */ |
| case 0x72: /* MS-DOS 7 (Windows95) - ??? */ |
| case 0x73: /* MS-DOS 7 (Windows95) - DRIVE LOCKING ??? */ |
| dprintf_int(stddeb,"int21: windows95 function AX %04x\n", |
| AX_reg(&context)); |
| dprintf_int(stddeb, " returning unimplemented\n"); |
| SET_CFLAG(&context); |
| AL_reg(&context) = 0; |
| break; |
| |
| case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */ |
| case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */ |
| break; |
| |
| default: |
| INT_BARF( &context, 0x21 ); |
| break; |
| } |
| dprintf_int( stddeb, "ret21: 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), |
| DS_reg(&context), ES_reg(&context), EFL_reg(&context)); |
| } |
| |
| |
| BOOL INT21_Init(void) |
| { |
| if ((DosHeapHandle = GlobalAlloc(GMEM_FIXED,sizeof(struct DosHeap))) == 0) |
| { |
| fprintf( stderr, "INT21_Init: Out of memory\n"); |
| return FALSE; |
| } |
| heap = (struct DosHeap *) GlobalLock(DosHeapHandle); |
| |
| dpb = &heap->dpb; |
| dpbsegptr = MAKELONG( (int)&heap->dpb - (int)heap, DosHeapHandle ); |
| heap->InDosFlag = 0; |
| strcpy(heap->biosdate, "01/01/80"); |
| return TRUE; |
| } |
