| #include <time.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <malloc.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <sys/stat.h> |
| #include <time.h> |
| #include <unistd.h> |
| #include <utime.h> |
| |
| #include "prototypes.h" |
| #include "regfunc.h" |
| #include "windows.h" |
| #include "wine.h" |
| #include "int21.h" |
| |
| static char Copyright[] = "copyright Erik Bos, 1993"; |
| |
| WORD ExtendedError, CodePage = 437; |
| BYTE ErrorClass, Action, ErrorLocus; |
| |
| extern char *TempDirectory; |
| |
| void Error(int e, int class, int el) |
| { |
| ExtendedError = e; |
| ErrorClass = class; |
| Action = SA_Ask4Retry; |
| ErrorLocus = el; |
| } |
| |
| 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) | SectorsPerCluster; |
| ECX = (ECX & 0xffff0000L) | SectorSize; |
| |
| EBX = (EBX & 0xffff0000L) | (available / (CX * AX)); |
| EDX = (EDX & 0xffff0000L) | (size / (CX * AX)); |
| Error (0,0,0); |
| } |
| |
| 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); |
| } |
| } |
| |
| void GetDefaultDrive(struct sigcontext_struct *context) |
| { |
| EAX = (EAX & 0xffffff00L) | DOS_GetDefaultDrive(); |
| Error (0,0,0); |
| } |
| |
| void GetDriveAllocInfo(struct sigcontext_struct *context) |
| { |
| int drive; |
| long size, available; |
| BYTE mediaID; |
| |
| drive = EDX & 0xffL; |
| |
| if (!DOS_ValidDrive(drive)) { |
| EAX = (EAX & 0xffff0000L) | SectorsPerCluster; |
| ECX = (ECX & 0xffff0000L) | SectorSize; |
| 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) | SectorsPerCluster; |
| ECX = (ECX & 0xffff0000L) | SectorSize; |
| EDX = (EDX & 0xffff0000L) | (size / (CX * AX)); |
| |
| mediaID = 0xf0; |
| |
| DS = segment(mediaID); |
| EBX = offset(mediaID); |
| Error (0,0,0); |
| } |
| |
| void GetDefDriveAllocInfo(struct sigcontext_struct *context) |
| { |
| EDX = DOS_GetDefaultDrive(); |
| GetDriveAllocInfo(context); |
| } |
| |
| 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 :-) */ |
| } |
| |
| 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 = (char *) 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; |
| } |
| } |
| |
| void WriteFile(struct sigcontext_struct *context) |
| { |
| char *ptr; |
| int x,size; |
| |
| ptr = (char *) 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; |
| } |
| } |
| |
| void UnlinkFile(struct sigcontext_struct *context) |
| { |
| if (unlink( GetUnixFileName((char *) 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; |
| } |
| |
| void SeekFile(struct sigcontext_struct *context) |
| { |
| int handle, 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; |
| } |
| |
| void GetFileAttributes(struct sigcontext_struct *context) |
| { |
| EAX &= 0xfffff00L; |
| ResetCflag; |
| } |
| |
| void SetFileAttributes(struct sigcontext_struct *context) |
| { |
| ResetCflag; |
| } |
| |
| void DosIOCTL(struct sigcontext_struct *context) |
| { |
| fprintf(stderr,"int21: IOCTL\n"); |
| EAX = (EAX & 0xfffff00L) | UnknownUnit; |
| SetCflag; |
| } |
| |
| void DupeFileHandle(struct sigcontext_struct *context) |
| { |
| EAX = (EAX & 0xffff0000L) | dup(BX); |
| ResetCflag; |
| } |
| |
| 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; |
| } |
| |
| 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; |
| } |
| |
| void GetExtendedErrorInfo(struct sigcontext_struct *context) |
| { |
| EAX = (EAX & 0xffffff00L) | ExtendedError; |
| EBX = (EBX & 0xffff0000L) | (0x100 * ErrorClass) | Action; |
| ECX = (ECX & 0xffff00ffL) | (0x100 * ErrorLocus); |
| } |
| |
| void GetInDosFlag(struct sigcontext_struct *context) |
| { |
| const BYTE InDosFlag = 0; |
| |
| ES = (ES & 0xffff0000L) | segment(InDosFlag); |
| EBX = (EBX & 0xffff0000L) | offset(InDosFlag); |
| } |
| |
| void CreateFile(struct sigcontext_struct *context) |
| { |
| int handle; |
| |
| if ((handle = open(GetUnixFileName((char *) 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; |
| } |
| |
| void OpenExistingFile(struct sigcontext_struct *context) |
| { |
| int handle; |
| |
| fprintf(stderr,"OpenExistingFile (%s)\n",(char *) pointer(DS,DX)); |
| |
| if ((handle = open(GetUnixFileName((char*) 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; |
| } |
| |
| 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; |
| } |
| |
| void RenameFile(struct sigcontext_struct *context) |
| { |
| char *newname, *oldname; |
| |
| fprintf(stderr,"int21: renaming %s to %s\n",(char *) pointer(DS,DX), pointer(ES,DI) ); |
| |
| oldname = GetUnixFileName( (char *) pointer(DS,DX) ); |
| newname = GetUnixFileName( (char *) pointer(ES,DI) ); |
| |
| rename( oldname, newname); |
| ResetCflag; |
| } |
| |
| void GetTrueFileName(struct sigcontext_struct *context) |
| { |
| fprintf(stderr,"int21: GetTrueFileName of %s\n",(char *) pointer(DS,SI)); |
| |
| strncpy((char *) pointer(ES,DI), (char *) pointer(DS,SI), strlen((char *) pointer(DS,SI)) & 0x7f); |
| ResetCflag; |
| } |
| |
| void MakeDir(struct sigcontext_struct *context) |
| { |
| char *dirname; |
| |
| fprintf(stderr,"int21: makedir %s\n",(char *) pointer(DS,DX) ); |
| |
| if ((dirname = GetUnixFileName( (char *) pointer(DS,DX) ))== NULL) { |
| EAX = (EAX & 0xffffff00L) | CanNotMakeDir; |
| SetCflag; |
| return; |
| } |
| |
| if (mkdir(dirname,0) == -1) { |
| EAX = (EAX & 0xffffff00L) | CanNotMakeDir; |
| SetCflag; |
| return; |
| } |
| ResetCflag; |
| } |
| |
| void ChangeDir(struct sigcontext_struct *context) |
| { |
| fprintf(stderr,"int21: changedir %s\n",(char *) pointer(DS,DX) ); |
| |
| DOS_ChangeDir(DOS_GetDefaultDrive(), (char *) pointer (DS,DX)); |
| } |
| |
| void RemoveDir(struct sigcontext_struct *context) |
| { |
| char *dirname; |
| |
| fprintf(stderr,"int21: removedir %s\n",(char *) pointer(DS,DX) ); |
| |
| if ((dirname = GetUnixFileName( (char *) 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; |
| } |
| |
| 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); /* out of memory */ |
| SetCflag; |
| } |
| fprintf(stderr,"int21: malloc (ptr = %d)\n", ptr ); |
| |
| EAX = (EAX & 0xffff0000L) | segment((unsigned long) ptr); |
| ResetCflag; |
| } |
| |
| void FreeMemory(struct sigcontext_struct *context) |
| { |
| fprintf(stderr,"int21: freemem (ptr = %d)\n", ES * 0x10 ); |
| |
| free((void *)(ES * 0x10)); |
| ResetCflag; |
| } |
| |
| 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); /* out of memory */ |
| SetCflag; |
| } |
| EBX = (EBX & 0xffff0000L) | segment((unsigned long) ptr); |
| ResetCflag; |
| } |
| |
| void ExecProgram(struct sigcontext_struct *context) |
| { |
| execl("wine", GetUnixFileName((char *) pointer(DS,DX)) ); |
| } |
| |
| void GetReturnCode(struct sigcontext_struct *context) |
| { |
| EAX = (EAX & 0xffffff00L) | NoError; /* normal exit */ |
| } |
| |
| void FindFirst(struct sigcontext_struct *context) |
| { |
| |
| } |
| |
| void FindNext(struct sigcontext_struct *context) |
| { |
| |
| } |
| |
| void GetSysVars(struct sigcontext_struct *context) |
| { |
| /* return a null pointer, to encourage anyone who tries to |
| use the pointer */ |
| |
| ES = 0x0; |
| EBX = (EBX & 0xffff0000L); |
| } |
| |
| void GetFileDateTime(struct sigcontext_struct *context) |
| { |
| char *filename; |
| struct stat filestat; |
| struct tm *now; |
| |
| if ((filename = GetUnixFileName( (char *) 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; |
| } |
| |
| void SetFileDateTime(struct sigcontext_struct *context) |
| { |
| char *filename; |
| struct utimbuf filetime; |
| |
| filename = GetUnixFileName((char *) pointer(DS,DX)); |
| |
| filetime.actime = 0L; |
| filetime.modtime = filetime.actime; |
| |
| utime(filename, &filetime); |
| ResetCflag; |
| } |
| |
| void CreateTempFile(struct sigcontext_struct *context) |
| { |
| char *filename, temp[256]; |
| int drive, 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((char *) pointer(DS,DX), temp); |
| |
| EAX = (EAX & 0xffff0000L) | handle; |
| ResetCflag; |
| } |
| |
| void CreateNewFile(struct sigcontext_struct *context) |
| { |
| int handle; |
| |
| if ((handle = open(GetUnixFileName((char *) pointer(DS,DX)), O_CREAT | O_TRUNC | O_RDWR)) == -1) { |
| EAX = (EAX & 0xffffff00L) | WriteProtected; |
| SetCflag; |
| return; |
| } |
| |
| EAX = (EAX & 0xffff0000L) | handle; |
| ResetCflag; |
| } |
| |
| void FileLock(struct sigcontext_struct *context) |
| { |
| |
| } |
| |
| void GetExtendedCountryInfo(struct sigcontext_struct *context) |
| { |
| ResetCflag; |
| } |
| |
| 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; |
| } |
| |
| DOS_GetCurrentDir(drive, (char *) pointer(DS,SI) ); |
| ResetCflag; |
| } |
| |
| void GetCurrentPSP(struct sigcontext_struct *context) |
| { |
| |
| } |
| |
| void GetDiskSerialNumber(struct sigcontext_struct *context) |
| { |
| int drive; |
| unsigned long serialnumber; |
| struct diskinfo *ptr; |
| |
| 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); |
| |
| ptr = (struct diskinfo *) pointer(DS,SI); |
| |
| ptr->infolevel = 0; |
| ptr->serialnumber = serialnumber; |
| strcpy(ptr->label,"NO NAME "); |
| strcpy(ptr->fstype,"FAT16 "); |
| |
| EAX = (EAX & 0xffffff00L) | NoError; |
| ResetCflag; |
| } |
| |
| void SetDiskSerialNumber(struct sigcontext_struct *context) |
| { |
| EAX = (EAX & 0xffffff00L) | 1L; |
| ResetCflag; |
| } |
| |
| /************************************************************************/ |
| |
| int do_int21(struct sigcontext_struct * context){ |
| int ah; |
| |
| fprintf(stderr,"int21: doing AX=%04x BX=%04x CX=%04x DX=%04x\n", |
| EAX & 0xffffL,EBX & 0xffffL,ECX & 0xffffL,EDX & 0xffffL); |
| |
| 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 0x0d: /* DISK BUFFER FLUSH */ |
| break; |
| |
| /* no FCB support for CP/M hackers */ |
| |
| case 0x0f: /* OPEN FILE USING FCB */ |
| case 0x10: /* CLOSE FILE USING FCB */ |
| case 0x11: /* FIND FIRST MATCHING FILE USING FCB */ |
| case 0x12: /* FIND NEXT MATCHING FILE USING FCB */ |
| case 0x13: /* DELETE 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 0x17: /* RENAME FILE USING FCB */ |
| case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */ |
| 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 0x27: /* RANDOM BLOCK READ FROM FCB FILE */ |
| case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */ |
| case 0x29: /* PARSE FILENAME INTO FCB */ |
| case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */ |
| |
| case 0x2e: /* SET VERIFY FLAG */ |
| 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 */ |
| EAX &= 0xff00; |
| break; |
| |
| case 0x67: /* SET HANDLE COUNT */ |
| ResetCflag; |
| break; |
| |
| case 0x0e: /* SELECT DEFAULT DRIVE */ |
| SetDefaultDrive(context); |
| break; |
| |
| case 0x19: /* GET CURRENT DEFAULT DRIVE */ |
| GetDefaultDrive(context); |
| 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 */ |
| case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */ |
| GetDrivePB(context); |
| break; |
| |
| case 0x25: /* SET INTERRUPT VECTOR */ |
| /* Ignore any attempt to set a segment vector */ |
| return 1; |
| |
| case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */ |
| break; |
| |
| case 0x2a: /* GET SYSTEM DATE */ |
| GetSystemDate(context); |
| break; |
| |
| case 0x2c: /* GET SYSTEM TIME */ |
| GetSystemTime(context); |
| break; |
| |
| case 0x30: /* GET DOS VERSION */ |
| fprintf(stderr,"int21: GetDosVersion\n"); |
| EAX = DosVersion; /* Hey folks, this is DOS V3.3! */ |
| EBX = 0x0012; /* 0x123456 is Wine's serial # */ |
| ECX = 0x3456; |
| break; |
| |
| case 0x31: /* TERMINATE AND STAY RESIDENT */ |
| 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: |
| 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 */ |
| 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 & 0xff) { |
| case 0x00: |
| GetFileAttributes(context); |
| break; |
| case 0x01: |
| SetFileAttributes(context); |
| break; |
| } |
| break; |
| |
| case 0x44: /* IOCTL */ |
| DosIOCTL(context); |
| 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; |
| /* 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 */ |
| fprintf(stderr,"int21: DosExit\n"); |
| exit(EAX & 0xff); |
| 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 & 0xff) { |
| case 0x00: |
| GetFileDateTime(context); |
| break; |
| case 0x01: |
| SetFileDateTime(context); |
| break; |
| } |
| break; |
| |
| case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */ |
| switch (EAX & 0xff) { |
| case 0x00: |
| EAX = (EAX & 0xffffff00L) | 0x01L; |
| break; |
| case 0x02: |
| EAX &= 0xff00L; |
| break; |
| case 0x01: |
| case 0x03: |
| break; |
| } |
| ResetCflag; |
| break; |
| |
| case 0x59: /* GET EXTENDED ERROR INFO */ |
| GetExtendedErrorInfo(context); |
| 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: |
| EAX = (EAX & 0xfffff00L) | NoNetwork; /* network software not installed */ |
| 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: |
| EAX = (EAX & 0xfffff00L) | NoNetwork; /* network software not installed */ |
| 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 = EBX; |
| ResetCflag; |
| break; |
| case 0x02: |
| CodePage = EBX; |
| ResetCflag; |
| break; |
| } |
| break; |
| |
| case 0x68: /* "FFLUSH" - COMMIT FILE */ |
| ResetCflag; |
| break; |
| |
| case 0x69: /* DISK SERIAL NUMBER */ |
| switch (EAX & 0xff) { |
| case 0x00: |
| GetDiskSerialNumber(context); |
| break; |
| case 0x01: |
| SetDiskSerialNumber(context); |
| break; |
| } |
| break; |
| |
| case 0x6a: /* COMMIT FILE */ |
| ResetCflag; |
| break; |
| |
| default: |
| fprintf(stderr,"Unable to handle int 0x21 %x\n", context->sc_eax); |
| return 1; |
| }; |
| } |
| return 1; |
| } |
| |
| /********************************************************************/ |
| |
| static void |
| GetTimeDate(int time_flag) |
| { |
| struct tm *now; |
| time_t ltime; |
| |
| ltime = time(NULL); |
| now = localtime(<ime); |
| if (time_flag) |
| { |
| _CX = (now->tm_hour << 8) | now->tm_min; |
| _DX = now->tm_sec << 8; |
| } |
| else |
| { |
| _CX = now->tm_year + 1900; |
| _DX = ((now->tm_mon + 1) << 8) | now->tm_mday; |
| _AX &= 0xff00; |
| _AX |= now->tm_wday; |
| } |
| #ifdef DEBUG_DOS |
| printf("GetTimeDate: AX = %04x, CX = %04x, DX = %04x\n", _AX, _CX, _DX); |
| #endif |
| |
| ReturnFromRegisterFunc(); |
| /* Function does not return */ |
| } |
| |
| /********************************************************************** |
| * KERNEL_DOS3Call |
| */ |
| int KERNEL_DOS3Call() |
| { |
| switch ((_AX >> 8) & 0xff) |
| { |
| case 0x30: |
| _AX = 0x0303; |
| ReturnFromRegisterFunc(); |
| /* Function does not return */ |
| |
| case 0x25: |
| case 0x35: |
| return 0; |
| |
| case 0x2a: |
| GetTimeDate(0); |
| /* Function does not return */ |
| |
| case 0x2c: |
| GetTimeDate(1); |
| /* Function does not return */ |
| |
| case 0x4c: |
| exit(_AX & 0xff); |
| |
| default: |
| fprintf(stderr, "DOS: AX %04x, BX %04x, CX %04x, DX %04x\n", |
| _AX, _BX, _CX, _DX); |
| fprintf(stderr, " SP %04x, BP %04x, SI %04x, DI %04x\n", |
| _SP, _BP, _SI, _DI); |
| fprintf(stderr, " DS %04x, ES %04x\n", |
| _DS, _ES); |
| } |
| |
| return 0; |
| } |