| #include <time.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| #include <utime.h> |
| |
| #include "prototypes.h" |
| #include "regfunc.h" |
| #include "windows.h" |
| #include "wine.h" |
| #include "msdos.h" |
| #include "options.h" |
| |
| static char Copyright[] = "copyright Erik Bos, 1993"; |
| |
| WORD ExtendedError, CodePage = 437; |
| BYTE ErrorClass, Action, ErrorLocus; |
| BYTE *dta; |
| |
| extern char TempDirectory[]; |
| |
| static int Error(int e, int class, int el) |
| { |
| ErrorClass = class; |
| Action = SA_Ask4Retry; |
| ErrorLocus = el; |
| ExtendedError = e; |
| |
| return e; |
| } |
| |
| static void Barf(struct sigcontext_struct *context) |
| { |
| fprintf(stderr, "int21: unknown/not implemented parameters:\n"); |
| fprintf(stderr, "int21: AX %04x, BX %04x, CX %04x, DX %04x, " |
| "SI %04x, DI %04x, DS %04x, ES %04x\n", |
| AX, BX, CX, DX, SI, DI, DS, ES); |
| } |
| |
| 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 void GetFreeDiskSpace(struct sigcontext_struct *context) |
| { |
| int drive; |
| long size,available; |
| |
| if (!(EDX & 0xffL)) |
| drive = DOS_GetDefaultDrive(); |
| else |
| drive = (EDX & 0xffL) - 1; |
| |
| if (!DOS_ValidDrive(drive)) { |
| Error(InvalidDrive, EC_MediaError , EL_Disk); |
| EAX |= 0xffffL; |
| return; |
| } |
| |
| if (!DOS_GetFreeSpace(drive, &size, &available)) { |
| Error(GeneralFailure, EC_MediaError , EL_Disk); |
| EAX |= 0xffffL; |
| return; |
| } |
| |
| EAX = (EAX & 0xffff0000L) | 4; |
| ECX = (ECX & 0xffff0000L) | 512; |
| |
| EBX = (EBX & 0xffff0000L) | (available / (CX * AX)); |
| EDX = (EDX & 0xffff0000L) | (size / (CX * AX)); |
| Error (0,0,0); |
| } |
| |
| static void SetDefaultDrive(struct sigcontext_struct *context) |
| { |
| int drive; |
| |
| drive = EDX & 0xffL; |
| |
| if (!DOS_ValidDrive(drive)) { |
| Error (InvalidDrive, EC_MediaError, EL_Disk); |
| return; |
| } else { |
| DOS_SetDefaultDrive(drive); |
| EAX = (EAX &0xffffff00L) | MAX_DOS_DRIVES; |
| Error (0,0,0); |
| } |
| } |
| |
| static void GetDefaultDrive(struct sigcontext_struct *context) |
| { |
| EAX = (EAX & 0xffffff00L) | DOS_GetDefaultDrive(); |
| Error (0,0,0); |
| } |
| |
| static void GetDriveAllocInfo(struct sigcontext_struct *context) |
| { |
| int drive; |
| long size, available; |
| BYTE mediaID; |
| |
| drive = EDX & 0xffL; |
| |
| if (!DOS_ValidDrive(drive)) { |
| EAX = (EAX & 0xffff0000L) | 4; |
| ECX = (ECX & 0xffff0000L) | 512; |
| EDX = (EDX & 0xffff0000L); |
| Error (InvalidDrive, EC_MediaError, EL_Disk); |
| return; |
| } |
| |
| if (!DOS_GetFreeSpace(drive, &size, &available)) { |
| Error(GeneralFailure, EC_MediaError , EL_Disk); |
| EAX |= 0xffffL; |
| return; |
| } |
| |
| EAX = (EAX & 0xffff0000L) | 4; |
| ECX = (ECX & 0xffff0000L) | 512; |
| EDX = (EDX & 0xffff0000L) | (size / (CX * AX)); |
| |
| mediaID = 0xf0; |
| |
| DS = segment(mediaID); |
| EBX = offset(mediaID); |
| Error (0,0,0); |
| } |
| |
| static void GetDefDriveAllocInfo(struct sigcontext_struct *context) |
| { |
| EDX = DOS_GetDefaultDrive(); |
| GetDriveAllocInfo(context); |
| } |
| |
| static void GetDrivePB(struct sigcontext_struct *context) |
| { |
| Error (InvalidDrive, EC_MediaError, EL_Disk); |
| EAX = (EAX & 0xffff0000L) | 0xffL; |
| /* I'm sorry but I only got networked drives :-) */ |
| } |
| |
| static void ReadFile(struct sigcontext_struct *context) |
| { |
| char *ptr; |
| int size; |
| |
| /* can't read from stdout / stderr */ |
| |
| if ((BX == 1) || (BX == 2)) { |
| Error (InvalidHandle, EL_Unknown, EC_Unknown); |
| EAX = (EAX & 0xffff0000L) | InvalidHandle; |
| SetCflag; |
| return; |
| } |
| |
| ptr = pointer (DS,DX); |
| |
| if (BX == 0) { |
| *ptr = EOF; |
| Error (0,0,0); |
| EAX = (EAX & 0xffff0000L) | 1; |
| ResetCflag; |
| return; |
| } else { |
| size = read(BX, ptr, CX); |
| if (size == 0) { |
| Error (ReadFault, EC_Unknown, EL_Unknown); |
| EAX = (EAX & 0xffffff00L) | ExtendedError; |
| return; |
| } |
| |
| if (size == -1) { |
| switch (errno) { |
| case EAGAIN: |
| Error (ShareViolation, EC_Temporary, EL_Unknown); |
| break; |
| case EBADF: |
| Error (InvalidHandle, EC_AppError, EL_Unknown); |
| break; |
| default: |
| Error (GeneralFailure, EC_SystemFailure, EL_Unknown); |
| break; |
| } |
| EAX = (EAX & 0xffffff00L) | ExtendedError; |
| SetCflag; |
| return; |
| } |
| Error (0,0,0); |
| EAX = (EAX & 0xffff0000L) | size; |
| ResetCflag; |
| } |
| } |
| |
| static void WriteFile(struct sigcontext_struct *context) |
| { |
| char *ptr; |
| int x,size; |
| |
| ptr = pointer (DS,DX); |
| |
| if (BX == 0) { |
| Error (InvalidHandle, EC_Unknown, EL_Unknown); |
| EAX = InvalidHandle; |
| SetCflag; |
| return; |
| } |
| |
| if (BX < 3) { |
| for (x = 0;x != CX;x++) { |
| fprintf(stderr, "%c", *ptr++); |
| } |
| fflush(stderr); |
| |
| Error (0,0,0); |
| EAX = (EAX & 0xffffff00L) | CX; |
| ResetCflag; |
| } else { |
| size = write(BX, ptr , CX); |
| if (size == 0) { |
| Error (WriteFault, EC_Unknown, EL_Unknown); |
| EAX = (EAX & 0xffffff00L) | ExtendedError; |
| return; |
| } |
| |
| if (size == -1) { |
| switch (errno) { |
| case EAGAIN: |
| Error (ShareViolation, EC_Temporary, EL_Unknown); |
| break; |
| case EBADF: |
| Error (InvalidHandle, EC_AppError, EL_Unknown); |
| break; |
| case ENOSPC: |
| Error (DiskFull, EC_MediaError, EL_Disk); |
| break; |
| default: |
| Error (GeneralFailure, EC_SystemFailure, EL_Unknown); |
| break; |
| } |
| EAX = (EAX & 0xffffff00L) | ExtendedError; |
| SetCflag; |
| return; |
| } |
| Error (0,0,0); |
| EAX = (EAX & 0xffff0000L) | size; |
| ResetCflag; |
| } |
| } |
| |
| static void UnlinkFile(struct sigcontext_struct *context) |
| { |
| if (unlink( GetUnixFileName( pointer(DS,DX)) ) == -1) { |
| switch (errno) { |
| case EACCES: |
| case EPERM: |
| case EROFS: |
| Error (WriteProtected, EC_AccessDenied, EL_Unknown); |
| break; |
| case EBUSY: |
| Error (LockViolation, EC_AccessDenied, EL_Unknown); |
| break; |
| case EAGAIN: |
| Error (ShareViolation, EC_Temporary, EL_Unknown); |
| break; |
| case ENOENT: |
| Error (FileNotFound, EC_NotFound, EL_Unknown); |
| break; |
| default: |
| Error (GeneralFailure, EC_SystemFailure, EL_Unknown); |
| break; |
| } |
| EAX = (EAX & 0xffffff00L) | ExtendedError; SetCflag; |
| return; |
| } |
| Error (0,0,0); |
| ResetCflag; |
| } |
| |
| static void SeekFile(struct sigcontext_struct *context) |
| { |
| int status, fileoffset; |
| |
| switch (EAX & 0xffL) { |
| case 1: fileoffset = SEEK_CUR; |
| break; |
| case 2: fileoffset = SEEK_END; |
| break; |
| default: |
| case 0: fileoffset = SEEK_SET; |
| break; |
| } |
| status = lseek(BX, (CX * 0x100) + DX, fileoffset); |
| if (status == -1) { |
| switch (errno) { |
| case EBADF: |
| Error (InvalidHandle, EC_AppError, EL_Unknown); |
| break; |
| case EINVAL: |
| Error (DataInvalid, EC_AppError, EL_Unknown); |
| break; |
| default: |
| Error (GeneralFailure, EC_SystemFailure, EL_Unknown); |
| break; |
| } |
| EAX = (EAX & 0xffffff00L) | ExtendedError; SetCflag; |
| return; |
| } |
| Error (0,0,0); |
| ResetCflag; |
| } |
| |
| static void GetFileAttributes(struct sigcontext_struct *context) |
| { |
| EAX &= 0xfffff00L; |
| ResetCflag; |
| } |
| |
| static void SetFileAttributes(struct sigcontext_struct *context) |
| { |
| ResetCflag; |
| } |
| |
| static void ioctlGetDeviceInfo(struct sigcontext_struct *context) |
| { |
| WORD handle = EBX & 0xffff; |
| |
| switch (handle) { |
| case 0: |
| case 1: |
| case 2: |
| EDX = (EDX & 0xffff0000) | 0x80d3; |
| break; |
| |
| default: |
| Barf(context); |
| EDX = (EDX & 0xffff0000) | 0x50; |
| } |
| ResetCflag; |
| } |
| |
| static void ioctlGenericBlkDevReq(struct sigcontext_struct *context) |
| { |
| BYTE *dataptr = pointer(DS, DX); |
| int drive; |
| |
| if (!(EBX & 0xffL)) |
| drive = DOS_GetDefaultDrive(); |
| else |
| drive = (EBX & 0xffL) - 1; |
| |
| if ((ECX & 0xff00L) != 0x0800) { |
| Barf(context); |
| return; |
| } |
| switch (ECX & 0xffL) { |
| case 0x60: /* get device parameters */ |
| /* used by w4wgrp's winfile */ |
| 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]); |
| EAX = (EAX & 0xfffff00L); |
| ResetCflag; |
| return; |
| default: |
| Barf(context); |
| } |
| } |
| |
| static void DupeFileHandle(struct sigcontext_struct *context) |
| { |
| EAX = (EAX & 0xffff0000L) | dup(BX); |
| ResetCflag; |
| } |
| |
| static void GetSystemDate(struct sigcontext_struct *context) |
| { |
| struct tm *now; |
| time_t ltime; |
| |
| ltime = time(NULL); |
| now = localtime(<ime); |
| |
| ECX = (ECX & 0xffff0000L) | (now->tm_year + 1900); |
| EDX = (EDX & 0xffff0000L) | ((now->tm_mon + 1) << 8) | now->tm_mday; |
| EAX = (EAX & 0xffff0000L) | now->tm_wday; |
| } |
| |
| static void GetSystemTime(struct sigcontext_struct *context) |
| { |
| struct tm *now; |
| time_t ltime; |
| |
| ltime = time(NULL); |
| now = localtime(<ime); |
| |
| ECX = (ECX & 0xffffff00L) | (now->tm_hour << 8) | now->tm_min; |
| EDX = (EDX & 0xffffff00L) | now->tm_sec << 8; |
| } |
| |
| static void GetExtendedErrorInfo(struct sigcontext_struct *context) |
| { |
| EAX = (EAX & 0xffffff00L) | ExtendedError; |
| EBX = (EBX & 0xffff0000L) | (0x100 * ErrorClass) | Action; |
| ECX = (ECX & 0xffff00ffL) | (0x100 * ErrorLocus); |
| } |
| |
| static void GetInDosFlag(struct sigcontext_struct *context) |
| { |
| const BYTE InDosFlag = 0; |
| |
| ES = (ES & 0xffff0000L) | segment(InDosFlag); |
| EBX = (EBX & 0xffff0000L) | offset(InDosFlag); |
| } |
| |
| static void CreateFile(struct sigcontext_struct *context) |
| { |
| int handle; |
| |
| if ((handle = open(GetUnixFileName( pointer(DS,DX)), O_CREAT | O_TRUNC)) == -1) { |
| switch (errno) { |
| case EACCES: |
| case EPERM: |
| case EROFS: |
| Error (WriteProtected, EC_AccessDenied, EL_Unknown); |
| break; |
| case EISDIR: |
| Error (CanNotMakeDir, EC_AccessDenied, EL_Unknown); |
| break; |
| case ENFILE: |
| case EMFILE: |
| Error (NoMoreFiles, EC_MediaError, EL_Unknown); |
| case EEXIST: |
| Error (FileExists, EC_Exists, EL_Disk); |
| break; |
| case ENOSPC: |
| Error (DiskFull, EC_MediaError, EL_Disk); |
| break; |
| default: |
| Error (GeneralFailure, EC_SystemFailure, EL_Unknown); |
| break; |
| } |
| EAX = (EAX & 0xffffff00L) | ExtendedError; |
| SetCflag; |
| return; |
| } |
| Error (0,0,0); |
| EBX = (EBX & 0xffff0000L) | handle; |
| EAX = (EAX & 0xffffff00L) | NoError; |
| ResetCflag; |
| } |
| |
| static void OpenExistingFile(struct sigcontext_struct *context) |
| { |
| int handle; |
| |
| fprintf(stderr,"OpenExistingFile (%s)\n", pointer(DS,DX)); |
| |
| if ((handle = open(GetUnixFileName(pointer(DS,DX)), O_RDWR)) == -1) { |
| switch (errno) { |
| case EACCES: |
| case EPERM: |
| case EROFS: |
| Error (WriteProtected, EC_AccessDenied, EL_Unknown); |
| break; |
| case EISDIR: |
| Error (CanNotMakeDir, EC_AccessDenied, EL_Unknown); |
| break; |
| case ENFILE: |
| case EMFILE: |
| Error (NoMoreFiles, EC_MediaError, EL_Unknown); |
| case EEXIST: |
| Error (FileExists, EC_Exists, EL_Disk); |
| break; |
| case ENOSPC: |
| Error (DiskFull, EC_MediaError, EL_Disk); |
| break; |
| case ENOENT: |
| Error (FileNotFound, EC_MediaError, EL_Disk); |
| break; |
| default: |
| Error (GeneralFailure, EC_SystemFailure, EL_Unknown); |
| break; |
| } |
| EAX = (EAX & 0xffffff00L) | ExtendedError; |
| SetCflag; |
| return; |
| } |
| Error (0,0,0); |
| EBX = (EBX & 0xffff0000L) | handle; |
| EAX = (EAX & 0xffffff00L) | NoError; |
| ResetCflag; |
| } |
| |
| static void CloseFile(struct sigcontext_struct *context) |
| { |
| if (close(BX) == -1) { |
| switch (errno) { |
| case EBADF: |
| Error (InvalidHandle, EC_AppError, EL_Unknown); |
| break; |
| default: |
| Error (GeneralFailure, EC_SystemFailure, EL_Unknown); |
| break; |
| } |
| EAX = (EAX & 0xffffff00L) | ExtendedError; |
| SetCflag; |
| return; |
| } |
| Error (0,0,0); |
| EAX = (EAX & 0xffffff00L) | NoError; |
| ResetCflag; |
| } |
| |
| static void RenameFile(struct sigcontext_struct *context) |
| { |
| char *newname, *oldname; |
| |
| fprintf(stderr,"int21: renaming %s to %s\n", |
| pointer(DS,DX), pointer(ES,DI) ); |
| |
| oldname = GetUnixFileName( pointer(DS,DX) ); |
| newname = GetUnixFileName( pointer(ES,DI) ); |
| |
| rename( oldname, newname); |
| ResetCflag; |
| } |
| |
| static void GetTrueFileName(struct sigcontext_struct *context) |
| { |
| fprintf(stderr,"int21: GetTrueFileName of %s\n", pointer(DS,SI) ); |
| |
| strncpy(pointer(ES,DI), pointer(DS,SI), strlen(pointer(DS,SI)) & 0x7f); |
| ResetCflag; |
| } |
| |
| static void MakeDir(struct sigcontext_struct *context) |
| { |
| char *dirname; |
| |
| fprintf(stderr,"int21: makedir %s\n", pointer(DS,DX) ); |
| |
| if ((dirname = GetUnixFileName( pointer(DS,DX) ))== NULL) { |
| EAX = (EAX & 0xffffff00L) | CanNotMakeDir; |
| SetCflag; |
| return; |
| } |
| |
| if (mkdir(dirname,0) == -1) { |
| EAX = (EAX & 0xffffff00L) | CanNotMakeDir; |
| SetCflag; |
| return; |
| } |
| ResetCflag; |
| } |
| |
| static void ChangeDir(struct sigcontext_struct *context) |
| { |
| int drive; |
| char *dirname = pointer(DS,DX); |
| drive = DOS_GetDefaultDrive(); |
| fprintf(stderr,"int21: changedir %s\n", dirname); |
| if (dirname != NULL && dirname[1] == ':') { |
| drive = toupper(dirname[0]) - 'A'; |
| dirname += 2; |
| } |
| DOS_ChangeDir(drive, dirname); |
| } |
| |
| static void RemoveDir(struct sigcontext_struct *context) |
| { |
| char *dirname; |
| |
| fprintf(stderr,"int21: removedir %s\n", pointer(DS,DX) ); |
| |
| if ((dirname = GetUnixFileName( pointer(DS,DX) ))== NULL) { |
| EAX = (EAX & 0xffffff00L) | CanNotMakeDir; |
| SetCflag; |
| return; |
| } |
| |
| /* |
| if (strcmp(unixname,DosDrives[drive].CurrentDirectory)) { |
| EAX = (EAX & 0xffffff00L) | CanNotRemoveCwd; |
| SetCflag; |
| } |
| */ |
| if (rmdir(dirname) == -1) { |
| EAX = (EAX & 0xffffff00L) | CanNotMakeDir; |
| SetCflag; |
| } |
| ResetCflag; |
| } |
| |
| static void AllocateMemory(struct sigcontext_struct *context) |
| { |
| char *ptr; |
| |
| fprintf(stderr,"int21: malloc %d bytes\n", BX * 0x10 ); |
| |
| /* if ((ptr = (void *) memalign((size_t) (BX * 0x10), 0x10)) == NULL) { |
| EAX = (EAX & 0xffffff00L) | OutOfMemory; |
| EBX = (EBX & 0xffffff00L); |
| SetCflag; |
| } |
| fprintf(stderr,"int21: malloc (ptr = %d)\n", ptr ); |
| |
| EAX = (EAX & 0xffff0000L) | segment(ptr); |
| */ |
| Barf(context); |
| SetCflag; |
| } |
| |
| static void FreeMemory(struct sigcontext_struct *context) |
| { |
| fprintf(stderr,"int21: freemem (ptr = %d)\n", ES * 0x10 ); |
| /* |
| free((void *)(ES * 0x10)); |
| */ Barf(context); |
| ResetCflag; |
| } |
| |
| static void ResizeMemoryBlock(struct sigcontext_struct *context) |
| { |
| char *ptr; |
| |
| fprintf(stderr,"int21: realloc (ptr = %d)\n", ES * 0x10 ); |
| |
| /* if ((ptr = (void *) realloc((void *)(ES * 0x10), (size_t) BX * 0x10)) == NULL) { |
| EAX = (EAX & 0xffffff00L) | OutOfMemory; |
| EBX = (EBX & 0xffffff00L); |
| SetCflag; |
| } |
| EBX = (EBX & 0xffff0000L) | segment(ptr); |
| */ Barf(context); |
| SetCflag; |
| } |
| |
| static void ExecProgram(struct sigcontext_struct *context) |
| { |
| execl("wine", GetUnixFileName( pointer(DS,DX)) ); |
| } |
| |
| static void GetReturnCode(struct sigcontext_struct *context) |
| { |
| EAX = (EAX & 0xffffff00L) | NoError; /* normal exit */ |
| } |
| |
| static void FindNext(struct sigcontext_struct *context) |
| { |
| struct dosdirent *dp; |
| |
| dp = (struct dosdirent *)(dta + 0x0d); |
| |
| do { |
| if ((dp = DOS_readdir(dp)) == NULL) { |
| DOS_closedir(dp); |
| Error(NoMoreFiles, EC_MediaError , EL_Disk); |
| EAX = (EAX & 0xffffff00L) | NoMoreFiles; |
| SetCflag; |
| return; |
| } |
| } while (*(dta + 0x0c) != dp->attribute); |
| |
| setword(&dta[0x16], 0x1234); /* time */ |
| setword(&dta[0x18], 0x1234); /* date */ |
| setdword(&dta[0x1a], dp->filesize); |
| strncpy(dta + 0x1e, dp->filename, 13); |
| |
| EAX = (EAX & 0xffffff00L); |
| ResetCflag; |
| return; |
| } |
| |
| static void FindFirst(struct sigcontext_struct *context) |
| { |
| BYTE drive, *path = pointer(DS, DX); |
| struct dosdirent *dp; |
| |
| if (path[1] == ':') { |
| drive = (islower(*path) ? toupper(*path) : *path) - 'A'; |
| |
| if (!DOS_ValidDrive(drive)) { |
| Error(InvalidDrive, EC_MediaError , EL_Disk); |
| EAX = (EAX & 0xffffff00L) | InvalidDrive; |
| SetCflag; |
| return; |
| } |
| } else |
| drive = DOS_GetDefaultDrive(); |
| |
| *dta = drive; |
| memset(dta + 1 , '?', 11); |
| *(dta + 0x0c) = ECX & (FA_LABEL | FA_DIREC); |
| |
| if (ECX & FA_LABEL) { |
| /* return volume label */ |
| |
| if (DOS_GetVolumeLabel(drive) != NULL) |
| strncpy(dta + 0x1e, DOS_GetVolumeLabel(drive), 8); |
| |
| EAX = (EAX & 0xffffff00L); |
| ResetCflag; |
| return; |
| } |
| |
| if ((dp = DOS_opendir(path)) == NULL) { |
| Error(PathNotFound, EC_MediaError, EL_Disk); |
| EAX = (EAX & 0xffffff00L) | FileNotFound; |
| SetCflag; |
| return; |
| } |
| /* strncpy(dta + 1, AsciizToFCB(dp->filemask), 11); */ |
| |
| /* *((BYTE *) ((void*)dta + 0x0d)) = (BYTE *) dp; */ |
| |
| *((struct dosdirent *)(dta + 0x0d)) |
| = |
| *dp; |
| FindNext(context); |
| } |
| |
| static void GetSysVars(struct sigcontext_struct *context) |
| { |
| /* return a null pointer, to encourage anyone who tries to |
| use the pointer */ |
| |
| ES = 0x0; |
| EBX = (EBX & 0xffff0000L); |
| Barf(context); |
| } |
| |
| static void GetFileDateTime(struct sigcontext_struct *context) |
| { |
| char *filename; |
| struct stat filestat; |
| struct tm *now; |
| |
| if ((filename = GetUnixFileName( pointer(DS,DX) ))== NULL) { |
| EAX = (EAX & 0xffffff00L) | FileNotFound; |
| SetCflag; |
| return; |
| } |
| stat(filename, &filestat); |
| |
| now = localtime (&filestat.st_mtime); |
| |
| ECX = (ECX & 0xffff0000L) | ((now->tm_hour * 0x2000) + (now->tm_min * 0x20) + now->tm_sec/2); |
| EDX = (EDX & 0xffff0000L) | ((now->tm_year * 0x200) + (now->tm_mon * 0x20) + now->tm_mday); |
| |
| ResetCflag; |
| } |
| |
| static void SetFileDateTime(struct sigcontext_struct *context) |
| { |
| char *filename; |
| struct utimbuf filetime; |
| |
| filename = GetUnixFileName( pointer(DS,DX) ); |
| |
| filetime.actime = 0L; |
| filetime.modtime = filetime.actime; |
| |
| utime(filename, &filetime); |
| ResetCflag; |
| } |
| |
| static void CreateTempFile(struct sigcontext_struct *context) |
| { |
| char temp[256]; |
| int handle; |
| |
| sprintf(temp,"%s\\win%d.tmp",TempDirectory,(int) getpid()); |
| |
| fprintf(stderr,"CreateTempFile %s\n",temp); |
| |
| handle = open(GetUnixFileName(temp), O_CREAT | O_TRUNC | O_RDWR); |
| |
| if (handle == -1) { |
| EAX = (EAX & 0xffffff00L) | WriteProtected; |
| SetCflag; |
| return; |
| } |
| |
| strcpy(pointer(DS,DX), temp); |
| |
| EAX = (EAX & 0xffff0000L) | handle; |
| ResetCflag; |
| } |
| |
| static void CreateNewFile(struct sigcontext_struct *context) |
| { |
| int handle; |
| |
| if ((handle = open(GetUnixFileName( pointer(DS,DX) ), O_CREAT | O_TRUNC | O_RDWR)) == -1) { |
| EAX = (EAX & 0xffffff00L) | WriteProtected; |
| SetCflag; |
| return; |
| } |
| |
| EAX = (EAX & 0xffff0000L) | handle; |
| ResetCflag; |
| } |
| |
| static void FileLock(struct sigcontext_struct *context) |
| { |
| fprintf(stderr, "int21: flock()\n"); |
| } |
| |
| static void GetExtendedCountryInfo(struct sigcontext_struct *context) |
| { |
| ResetCflag; |
| } |
| |
| static void GetCurrentDirectory(struct sigcontext_struct *context) |
| { |
| int drive; |
| |
| if ((EDX & 0xffL) == 0) |
| drive = DOS_GetDefaultDrive(); |
| else |
| drive = (EDX & 0xffL)-1; |
| |
| if (!DOS_ValidDrive(drive)) { |
| EAX = (EAX & 0xffffff00L) | InvalidDrive; |
| SetCflag; |
| return; |
| } |
| |
| strcpy(pointer(DS,SI), DOS_GetCurrentDir(drive) ); |
| ResetCflag; |
| } |
| |
| static void GetCurrentPSP(struct sigcontext_struct *context) |
| { |
| Barf(context); |
| } |
| |
| static void GetDiskSerialNumber(struct sigcontext_struct *context) |
| { |
| int drive; |
| BYTE *dataptr = pointer(DS, DX); |
| DWORD serialnumber; |
| |
| if ((EBX & 0xffL) == 0) |
| drive = DOS_GetDefaultDrive(); |
| else |
| drive = (EBX & 0xffL) - 1; |
| |
| if (!DOS_ValidDrive(drive)) { |
| EAX = (EAX & 0xffffff00L) |InvalidDrive; |
| SetCflag; |
| return; |
| } |
| |
| DOS_GetSerialNumber(drive, &serialnumber); |
| |
| setword(dataptr, 0); |
| setdword(&dataptr[2], serialnumber); |
| strncpy(dataptr + 6, DOS_GetVolumeLabel(drive), 8); |
| strncpy(dataptr + 0x11, "FAT16 ", 8); |
| |
| EAX = (EAX & 0xffffff00L); |
| ResetCflag; |
| } |
| |
| static void SetDiskSerialNumber(struct sigcontext_struct *context) |
| { |
| int drive; |
| BYTE *dataptr = pointer(DS, DX); |
| DWORD serialnumber; |
| |
| if ((EBX & 0xffL) == 0) |
| drive = DOS_GetDefaultDrive(); |
| else |
| drive = (EBX & 0xffL) - 1; |
| |
| if (!DOS_ValidDrive(drive)) { |
| EAX = (EAX & 0xffffff00L) | InvalidDrive; |
| SetCflag; |
| return; |
| } |
| |
| serialnumber = dataptr[1] + (dataptr[2] << 8) + (dataptr[3] << 16) + |
| (dataptr[4] << 24); |
| |
| DOS_SetSerialNumber(drive, serialnumber); |
| EAX = (EAX & 0xffffff00L) | 1L; |
| ResetCflag; |
| } |
| |
| static void DumpFCB(BYTE *fcb) |
| { |
| int x, y; |
| |
| fcb -= 7; |
| |
| for (y = 0; y !=2 ; y++) { |
| for (x = 0; x!=15;x++) |
| fprintf(stderr, "%02x ", *fcb++); |
| fprintf(stderr,"\n"); |
| } |
| } |
| |
| /* microsoft's programmers should be shot for using CP/M style int21 |
| calls in Windows for Workgroup's winfile.exe */ |
| |
| static void FindFirstFCB(struct sigcontext_struct *context) |
| { |
| BYTE *fcb = pointer(DS, DX); |
| int drive; |
| |
| DumpFCB( fcb ); |
| |
| if (*fcb) |
| drive = *fcb - 1; |
| else |
| drive = DOS_GetDefaultDrive(); |
| |
| if (*(fcb - 7) == 0xff) { |
| if (*(fcb - 1) == FA_DIREC) { |
| /* return volume label */ |
| |
| memset(dta, ' ', 11); |
| if (DOS_GetVolumeLabel(drive) != NULL) |
| strncpy(dta, DOS_GetVolumeLabel(drive), 8); |
| *(dta + 0x0b) = FA_DIREC; |
| |
| EAX = (EAX & 0xffffff00L); |
| return; |
| } |
| } |
| Barf(context); |
| } |
| |
| static void DeleteFileFCB(struct sigcontext_struct *context) |
| { |
| BYTE *fcb = pointer(DS, DX); |
| int drive; |
| struct dosdirent *dp; |
| char temp[256], *ptr; |
| |
| DumpFCB( fcb ); |
| |
| if (*fcb) |
| drive = *fcb - 1; |
| else |
| drive = DOS_GetDefaultDrive(); |
| |
| strcpy(temp, DOS_GetCurrentDir(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); |
| EAX = (EAX & 0xffffff00L) | 0xffL; |
| return; |
| } |
| |
| strcpy(temp, DOS_GetCurrentDir(drive) ); |
| strcat(temp, "\\"); |
| |
| ptr = temp + strlen(temp); |
| |
| while (DOS_readdir(dp) != NULL) |
| { |
| strcpy(ptr, dp->filename); |
| fprintf(stderr, "int21: delete file %s\n", temp); |
| /* unlink(GetUnixFileName(temp)); */ |
| } |
| |
| DOS_closedir(dp); |
| EAX = (EAX & 0xffffff00L); |
| } |
| |
| static void RenameFileFCB(struct sigcontext_struct *context) |
| { |
| BYTE *fcb = pointer(DS, DX); |
| int drive; |
| struct dosdirent *dp; |
| char temp[256], oldname[256], newname[256], *oldnameptr, *newnameptr; |
| |
| DumpFCB( fcb ); |
| |
| if (*fcb) |
| drive = *fcb - 1; |
| else |
| drive = DOS_GetDefaultDrive(); |
| |
| strcpy(temp, DOS_GetCurrentDir(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); |
| EAX = (EAX & 0xffffff00L) | 0xffL; |
| return; |
| } |
| |
| strcpy(oldname, DOS_GetCurrentDir(drive) ); |
| strcat(oldname, "\\"); |
| oldnameptr = oldname + strlen(oldname); |
| |
| strcpy(newname, DOS_GetCurrentDir(drive) ); |
| strcat(newname, "\\"); |
| newnameptr = newname + strlen(newname); |
| |
| while (DOS_readdir(dp) != NULL) |
| { |
| strcpy(oldnameptr, dp->filename); |
| strcpy(newnameptr, fcb + 1); |
| fprintf(stderr, "int21: renamefile %s -> %s\n", oldname, newname); |
| } |
| |
| DOS_closedir(dp); |
| EAX = (EAX & 0xffffff00L); |
| } |
| |
| /************************************************************************/ |
| |
| int do_int21(struct sigcontext_struct * context) |
| { |
| int ah; |
| |
| if (Options.relay_debug) |
| { |
| printf("int21: AX %04x, BX %04x, CX %04x, DX %04x, " |
| "SI %04x, DI %04x, DS %04x, ES %04x\n", |
| AX, BX, CX, DX, SI, DI, DS, ES); |
| } |
| |
| ah = (EAX >> 8) & 0xffL; |
| |
| if (ah == 0x59) |
| { |
| GetExtendedErrorInfo(context); |
| return 1; |
| } |
| else |
| { |
| Error (0,0,0); |
| switch(ah) |
| { |
| case 0x00: /* TERMINATE PROGRAM */ |
| exit(0); |
| |
| 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 0x12: /* FIND NEXT MATCHING 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 */ |
| Barf(context); |
| break; |
| |
| case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */ |
| case 0x1d: |
| case 0x1e: |
| case 0x20: |
| case 0x2b: /* SET SYSTEM DATE */ |
| case 0x2d: /* SET SYSTEM TIME */ |
| case 0x37: /* "SWITCHAR" - GET SWITCH CHARACTER |
| "SWITCHAR" - SET SWITCH CHARACTER |
| "AVAILDEV" - SPECIFY \DEV\ PREFIX USE */ |
| case 0x54: /* GET VERIFY FLAG */ |
| case 0x61: /* UNUSED */ |
| case 0x6b: /* NULL FUNCTION */ |
| Barf(context); |
| EAX &= 0xff00; |
| break; |
| |
| case 0x0d: /* DISK BUFFER FLUSH */ |
| ResetCflag; /* dos 6+ only */ |
| break; |
| |
| case 0x0e: /* SELECT DEFAULT DRIVE */ |
| SetDefaultDrive(context); |
| break; |
| |
| case 0x11: /* FIND FIRST MATCHING FILE USING FCB */ |
| FindFirstFCB(context); |
| 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 */ |
| GetDefaultDrive(context); |
| break; |
| |
| case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */ |
| dta = pointer(DS, DX); |
| break; |
| |
| case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */ |
| GetDefDriveAllocInfo(context); |
| break; |
| |
| case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */ |
| GetDriveAllocInfo(context); |
| break; |
| |
| case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */ |
| GetDrivePB(context); |
| break; |
| |
| case 0x25: /* SET INTERRUPT VECTOR */ |
| /* Ignore any attempt to set a segment vector */ |
| fprintf(stderr, "int21: set interrupt vector %2x (%04x:%04x)\n", AX & 0xff, DS, DX); |
| break; |
| |
| case 0x2a: /* GET SYSTEM DATE */ |
| GetSystemDate(context); |
| break; |
| |
| case 0x2c: /* GET SYSTEM TIME */ |
| GetSystemTime(context); |
| break; |
| |
| case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */ |
| ES = segment(dta); |
| EBX = (EBX & 0xffff0000L) | offset(dta); |
| break; |
| |
| case 0x30: /* GET DOS VERSION */ |
| EAX = (EAX & 0xffff0000L) | DOSVERSION; |
| EBX = (EBX & 0xffff0000L) | 0x0012; /* 0x123456 is Wine's serial # */ |
| ECX = (ECX & 0xffff0000L) | 0x3456; |
| break; |
| |
| case 0x31: /* TERMINATE AND STAY RESIDENT */ |
| Barf(context); |
| break; |
| |
| case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */ |
| GetDrivePB(context); |
| break; |
| |
| case 0x33: /* MULTIPLEXED */ |
| switch (EAX & 0xff) { |
| case 0x00: /* GET CURRENT EXTENDED BREAK STATE */ |
| if (!(EAX & 0xffL)) |
| EDX &= 0xff00L; |
| break; |
| |
| case 0x01: /* SET EXTENDED BREAK STATE */ |
| break; |
| |
| case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/ |
| EDX &= 0xff00L; |
| break; |
| |
| case 0x05: /* GET BOOT DRIVE */ |
| EDX = (EDX & 0xff00L) | 2; |
| /* c: is Wine's bootdrive */ |
| break; |
| |
| case 0x06: /* GET TRUE VERSION NUMBER */ |
| EBX = DOSVERSION; |
| EDX = 0x00; |
| break; |
| |
| default: |
| Barf(context); |
| break; |
| } |
| break; |
| |
| case 0x34: /* GET ADDRESS OF INDOS FLAG */ |
| GetInDosFlag(context); |
| break; |
| |
| case 0x35: /* GET INTERRUPT VECTOR */ |
| /* Return a NULL segment selector - this will bomb, |
| if anyone ever tries to use it */ |
| fprintf(stderr, "int21: get interrupt vector %2x\n", AX & 0xff); |
| ES = 0; |
| EBX = 0; |
| break; |
| |
| case 0x36: /* GET FREE DISK SPACE */ |
| GetFreeDiskSpace(context); |
| break; |
| |
| case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */ |
| EAX &= 0xff00; |
| EAX |= 0x02; /* no country support available */ |
| SetCflag; |
| break; |
| |
| case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */ |
| MakeDir(context); |
| break; |
| |
| case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */ |
| RemoveDir(context); |
| break; |
| |
| case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */ |
| ChangeDir(context); |
| break; |
| |
| case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */ |
| CreateFile(context); |
| break; |
| |
| case 0x3d: /* "OPEN" - OPEN EXISTING FILE */ |
| OpenExistingFile(context); |
| break; |
| |
| case 0x3e: /* "CLOSE" - CLOSE FILE */ |
| CloseFile(context); |
| break; |
| |
| case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */ |
| ReadFile(context); |
| break; |
| |
| case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */ |
| WriteFile(context); |
| break; |
| |
| case 0x41: /* "UNLINK" - DELETE FILE */ |
| UnlinkFile(context); |
| break; |
| |
| case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */ |
| SeekFile(context); |
| break; |
| |
| case 0x43: /* FILE ATTRIBUTES */ |
| switch (EAX & 0xffL) |
| { |
| case 0x00: |
| GetFileAttributes(context); |
| break; |
| case 0x01: |
| SetFileAttributes(context); |
| break; |
| } |
| break; |
| |
| case 0x44: /* IOCTL */ |
| switch (EAX & 0xff) |
| { |
| case 0x00: |
| ioctlGetDeviceInfo(context); |
| break; |
| |
| case 0x0d: |
| ioctlGenericBlkDevReq(context); |
| break; |
| |
| default: |
| Barf(context); |
| break; |
| } |
| break; |
| |
| |
| case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */ |
| case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */ |
| DupeFileHandle(context); |
| break; |
| |
| case 0x47: /* "CWD" - GET CURRENT DIRECTORY */ |
| GetCurrentDirectory(context); |
| EAX = (EAX & 0xffff0000L) | 0x0100; |
| /* intlist: many Microsoft products for Windows rely on this */ |
| break; |
| |
| case 0x48: /* ALLOCATE MEMORY */ |
| AllocateMemory(context); |
| break; |
| |
| case 0x49: /* FREE MEMORY */ |
| FreeMemory(context); |
| break; |
| |
| case 0x4a: /* RESIZE MEMORY BLOCK */ |
| ResizeMemoryBlock(context); |
| break; |
| |
| case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */ |
| ExecProgram(context); |
| break; |
| |
| case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */ |
| exit(EAX & 0xffL); |
| break; |
| |
| case 0x4d: /* GET RETURN CODE */ |
| GetReturnCode(context); |
| break; |
| |
| case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */ |
| FindFirst(context); |
| break; |
| |
| case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */ |
| FindNext(context); |
| break; |
| |
| case 0x52: /* "SYSVARS" - GET LIST OF LISTS */ |
| GetSysVars(context); |
| break; |
| |
| case 0x56: /* "RENAME" - RENAME FILE */ |
| RenameFile(context); |
| break; |
| |
| case 0x57: /* FILE DATE AND TIME */ |
| switch (EAX & 0xffL) |
| { |
| case 0x00: |
| GetFileDateTime(context); |
| break; |
| case 0x01: |
| SetFileDateTime(context); |
| break; |
| } |
| break; |
| |
| case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */ |
| switch (EAX & 0xffL) |
| { |
| case 0x00: |
| EAX = (EAX & 0xffffff00L) | 0x01L; |
| break; |
| case 0x02: |
| EAX &= 0xff00L; |
| break; |
| case 0x01: |
| case 0x03: |
| break; |
| } |
| ResetCflag; |
| break; |
| |
| case 0x5a: /* CREATE TEMPORARY FILE */ |
| CreateTempFile(context); |
| break; |
| |
| case 0x5b: /* CREATE NEW FILE */ |
| CreateNewFile(context); |
| break; |
| |
| case 0x5c: /* "FLOCK" - RECORD LOCKING */ |
| FileLock(context); |
| break; |
| |
| case 0x5d: /* NETWORK */ |
| case 0x5e: |
| /* network software not installed */ |
| EAX = (EAX & 0xfffff00L) | NoNetwork; |
| SetCflag; |
| break; |
| |
| case 0x5f: /* NETWORK */ |
| switch (EAX & 0xffL) |
| { |
| case 0x07: /* ENABLE DRIVE */ |
| if (!DOS_EnableDrive(EDX & 0xffL)) |
| { |
| Error(InvalidDrive, EC_MediaError , EL_Disk); |
| EAX = (EAX & 0xfffff00L) | InvalidDrive; |
| SetCflag; |
| break; |
| } |
| else |
| { |
| ResetCflag; |
| break; |
| } |
| case 0x08: /* DISABLE DRIVE */ |
| if (!DOS_DisableDrive(EDX & 0xffL)) |
| { |
| Error(InvalidDrive, EC_MediaError , EL_Disk); |
| EAX = (EAX & 0xfffff00L) | InvalidDrive; |
| SetCflag; |
| break; |
| } |
| else |
| { |
| ResetCflag; |
| break; |
| } |
| default: |
| /* network software not installed */ |
| EAX = (EAX & 0xfffff00L) | NoNetwork; |
| SetCflag; |
| break; |
| } |
| break; |
| |
| case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */ |
| GetTrueFileName(context); |
| break; |
| |
| case 0x62: /* GET CURRENT PSP ADDRESS */ |
| GetCurrentPSP(context); |
| break; |
| |
| case 0x65: /* GET EXTENDED COUNTRY INFORMATION */ |
| GetExtendedCountryInfo(context); |
| break; |
| |
| case 0x66: /* GLOBAL CODE PAGE TABLE */ |
| switch (EAX & 0xffL) |
| { |
| case 0x01: |
| EBX = CodePage; |
| EDX = BX; |
| ResetCflag; |
| break; |
| case 0x02: |
| CodePage = BX; |
| ResetCflag; |
| break; |
| } |
| break; |
| |
| case 0x67: /* SET HANDLE COUNT */ |
| ResetCflag; |
| break; |
| |
| case 0x68: /* "FFLUSH" - COMMIT FILE */ |
| ResetCflag; |
| break; |
| |
| case 0x69: /* DISK SERIAL NUMBER */ |
| switch (EAX & 0xffL) |
| { |
| case 0x00: |
| GetDiskSerialNumber(context); |
| break; |
| case 0x01: |
| SetDiskSerialNumber(context); |
| break; |
| } |
| break; |
| |
| case 0x6a: /* COMMIT FILE */ |
| ResetCflag; |
| break; |
| |
| |
| default: |
| Barf(context); |
| return 1; |
| } |
| } |
| return 1; |
| } |
| |
| /********************************************************************** |
| * DOS3Call |
| */ |
| void DOS3Call() |
| { |
| do_int21((struct sigcontext_struct *) _CONTEXT); |
| ReturnFromRegisterFunc(); |
| } |