1729 lines
38 KiB
C
1729 lines
38 KiB
C
/*
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* (c) 1993, 1994 Erik Bos
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*/
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#include <time.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/file.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <utime.h>
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#include <ctype.h>
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#include "dos_fs.h"
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#include "windows.h"
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#include "msdos.h"
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#include "registers.h"
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#include "ldt.h"
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#include "task.h"
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#include "options.h"
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#include "miscemu.h"
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#include "stddebug.h"
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/* #define DEBUG_INT */
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#include "debug.h"
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/* Define the drive parameter block, as used by int21/1F
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* and int21/32. This table can be accessed through the
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* global 'dpb' pointer, which points into the local dos
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* heap.
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*/
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struct DPB
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{
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BYTE drive_num; /* 0=A, etc. */
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BYTE unit_num; /* Drive's unit number (?) */
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WORD sector_size; /* Sector size in bytes */
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BYTE high_sector; /* Highest sector in a cluster */
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BYTE shift; /* Shift count (?) */
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WORD reserved; /* Number of reserved sectors at start */
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BYTE num_FAT; /* Number of FATs */
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WORD dir_entries; /* Number of root dir entries */
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WORD first_data; /* First data sector */
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WORD high_cluster; /* Highest cluster number */
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WORD sectors_in_FAT; /* Number of sectors per FAT */
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WORD start_dir; /* Starting sector of first dir */
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DWORD driver_head; /* Address of device driver header (?) */
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BYTE media_ID; /* Media ID */
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BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
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DWORD next; /* Pointer to next DPB in list */
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WORD free_search; /* Free cluster search start */
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WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
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};
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WORD ExtendedError, CodePage = 437;
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BYTE ErrorClass, Action, ErrorLocus;
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struct DPB *dpb;
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DWORD dpbsegptr;
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struct DosHeap {
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BYTE InDosFlag;
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BYTE mediaID;
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BYTE biosdate[8];
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struct DPB dpb;
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};
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static struct DosHeap *heap;
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static WORD DosHeapHandle;
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WORD sharing_retries = 3; /* number of retries at sharing violation */
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WORD sharing_pause = 1; /* pause between retries */
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extern char TempDirectory[];
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static int Error(int e, int class, int el)
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{
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ErrorClass = class;
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Action = SA_Ask4Retry;
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ErrorLocus = el;
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ExtendedError = e;
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return e;
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}
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void errno_to_doserr(void)
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{
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switch (errno) {
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case EAGAIN:
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Error (ShareViolation, EC_Temporary, EL_Unknown);
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break;
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case EBADF:
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Error (InvalidHandle, EC_AppError, EL_Unknown);
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break;
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case ENOSPC:
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Error (DiskFull, EC_MediaError, EL_Disk);
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break;
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case EACCES:
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case EPERM:
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case EROFS:
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Error (WriteProtected, EC_AccessDenied, EL_Unknown);
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break;
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case EBUSY:
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Error (LockViolation, EC_AccessDenied, EL_Unknown);
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break;
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case ENOENT:
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Error (FileNotFound, EC_NotFound, EL_Unknown);
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break;
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case EISDIR:
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Error (CanNotMakeDir, EC_AccessDenied, EL_Unknown);
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break;
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case ENFILE:
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case EMFILE:
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Error (NoMoreFiles, EC_MediaError, EL_Unknown);
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break;
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case EEXIST:
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Error (FileExists, EC_Exists, EL_Disk);
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break;
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default:
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dprintf_int(stddeb, "int21: unknown errno %d!\n", errno);
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Error (GeneralFailure, EC_SystemFailure, EL_Unknown);
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break;
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}
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}
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BYTE *GetCurrentDTA(void)
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{
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TDB *pTask = (TDB *)GlobalLock( GetCurrentTask() );
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return (BYTE *)PTR_SEG_TO_LIN( pTask->dta );
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}
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void ChopOffWhiteSpace(char *string)
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{
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int length;
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for (length = strlen(string) ; length ; length--)
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if (string[length] == ' ')
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string[length] = '\0';
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}
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static void CreateBPB(int drive, BYTE *data)
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{
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if (drive > 1) {
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setword(data, 512);
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data[2] = 2;
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setword(&data[3], 0);
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data[5] = 2;
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setword(&data[6], 240);
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setword(&data[8], 64000);
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data[0x0a] = 0xf8;
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setword(&data[0x0b], 40);
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setword(&data[0x0d], 56);
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setword(&data[0x0f], 2);
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setword(&data[0x11], 0);
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setword(&data[0x1f], 800);
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data[0x21] = 5;
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setword(&data[0x22], 1);
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} else { /* 1.44mb */
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setword(data, 512);
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data[2] = 2;
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setword(&data[3], 0);
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data[5] = 2;
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setword(&data[6], 240);
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setword(&data[8], 2880);
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data[0x0a] = 0xf8;
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setword(&data[0x0b], 6);
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setword(&data[0x0d], 18);
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setword(&data[0x0f], 2);
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setword(&data[0x11], 0);
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setword(&data[0x1f], 80);
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data[0x21] = 7;
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setword(&data[0x22], 2);
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}
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}
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static void GetFreeDiskSpace(struct sigcontext_struct *context)
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{
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int drive;
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long size,available;
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if (DL == 0)
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drive = DOS_GetDefaultDrive();
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else
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drive = DL - 1;
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if (!DOS_ValidDrive(drive)) {
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Error(InvalidDrive, EC_MediaError , EL_Disk);
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AX = 0xffff;
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return;
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}
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if (!DOS_GetFreeSpace(drive, &size, &available)) {
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Error(GeneralFailure, EC_MediaError , EL_Disk);
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AX = 0xffff;
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return;
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}
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AX = 4;
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CX = 512;
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BX = (available / (CX * AX));
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DX = (size / (CX * AX));
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Error (0,0,0);
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}
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static void GetDriveAllocInfo(struct sigcontext_struct *context)
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{
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long size, available;
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if (!DOS_ValidDrive(DL)) {
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AX = 4;
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CX = 512;
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DX = 0;
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Error (InvalidDrive, EC_MediaError, EL_Disk);
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return;
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}
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if (!DOS_GetFreeSpace(DL, &size, &available)) {
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Error(GeneralFailure, EC_MediaError , EL_Disk);
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AX = 0xffff;
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return;
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}
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EAX = 4;
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ECX = 512;
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EDX = (size / (CX * AX));
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heap->mediaID = 0xf0;
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DS = DosHeapHandle;
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BX = (int)&heap->mediaID - (int)heap;
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Error (0,0,0);
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}
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static void GetDefDriveAllocInfo(struct sigcontext_struct *context)
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{
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DX = DOS_GetDefaultDrive();
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GetDriveAllocInfo(context);
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}
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static void GetDrivePB(struct sigcontext_struct *context, int drive)
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{
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if(!DOS_ValidDrive(drive))
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{
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Error (InvalidDrive, EC_MediaError, EL_Disk);
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AX = 0x00ff;
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}
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else
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{
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dprintf_int(stddeb, "int21: GetDrivePB not fully implemented.\n");
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/* FIXME: I have no idea what a lot of this information should
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* say or whether it even really matters since we're not allowing
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* direct block access. However, some programs seem to depend on
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* getting at least _something_ back from here. The 'next' pointer
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* does worry me, though. Should we have a complete table of
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* separate DPBs per drive? Probably, but I'm lazy. :-) -CH
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*/
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dpb->drive_num = dpb->unit_num = drive; /* The same? */
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dpb->sector_size = 512;
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dpb->high_sector = 1;
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dpb->shift = 0;
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dpb->reserved = 0;
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dpb->num_FAT = 1;
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dpb->dir_entries = 2;
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dpb->first_data = 2;
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dpb->high_cluster = 1023;
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dpb->sectors_in_FAT = 1;
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dpb->start_dir = 1;
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dpb->driver_head = 0;
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dpb->media_ID = (drive > 1) ? 0xF8 : 0xF0;
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dpb->access_flag = 0;
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dpb->next = 0;
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dpb->free_search = 0;
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dpb->free_clusters = 0xFFFF; /* unknown */
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AL = 0x00;
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DS = SELECTOROF(dpbsegptr);
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BX = OFFSETOF(dpbsegptr);
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}
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}
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static void ReadFile(struct sigcontext_struct *context)
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{
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char *ptr;
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int size;
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/* can't read from stdout / stderr */
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if ((BX == 1) || (BX == 2)) {
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Error (InvalidHandle, EL_Unknown, EC_Unknown);
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AX = InvalidHandle;
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SetCflag;
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return;
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}
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ptr = PTR_SEG_OFF_TO_LIN (DS,DX);
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if (BX == 0) {
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*ptr = EOF;
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Error (0,0,0);
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AX = 1;
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ResetCflag;
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return;
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} else {
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size = read(BX, ptr, CX);
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if (size == -1) {
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errno_to_doserr();
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AL = ExtendedError;
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SetCflag;
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return;
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}
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Error (0,0,0);
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AX = size;
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ResetCflag;
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}
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}
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static void WriteFile(struct sigcontext_struct *context)
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{
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char *ptr;
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int x,size;
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ptr = PTR_SEG_OFF_TO_LIN (DS,DX);
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if (BX == 0) {
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Error (InvalidHandle, EC_Unknown, EL_Unknown);
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EAX = InvalidHandle;
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SetCflag;
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return;
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}
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if (BX < 3) {
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for (x = 0;x != CX;x++) {
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dprintf_int(stddeb, "%c", *ptr++);
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}
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fflush(stddeb);
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Error (0,0,0);
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AL = CX;
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ResetCflag;
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} else {
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size = write(BX, ptr , CX);
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if (size == 0) {
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Error (WriteFault, EC_Unknown, EL_Unknown);
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AL = ExtendedError;
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return;
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}
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if (size == -1) {
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errno_to_doserr();
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AL = ExtendedError;
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SetCflag;
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return;
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}
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Error (0,0,0);
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AX = size;
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ResetCflag;
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}
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}
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static void SeekFile(struct sigcontext_struct *context)
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{
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off_t status, fileoffset;
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switch (AL) {
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case 1: fileoffset = SEEK_CUR;
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break;
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case 2: fileoffset = SEEK_END;
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break;
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default:
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case 0: fileoffset = SEEK_SET;
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break;
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}
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status = lseek(BX, (CX << 16) + DX, fileoffset);
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if (status == -1) {
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errno_to_doserr();
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AL = ExtendedError; SetCflag;
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return;
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}
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Error (0,0,0);
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AX = (status & 0xffff);
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DX = ((status >> 16) & 0xffff);
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ResetCflag;
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}
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static void ioctlGetDeviceInfo(struct sigcontext_struct *context)
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{
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switch (BX) {
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case 0:
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case 1:
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case 2:
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DX = 0x80d0 + (1 << BX);
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ResetCflag;
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break;
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default:
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{
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struct stat sbuf;
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if (fstat(BX, &sbuf) < 0)
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{
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IntBarf(0x21, context);
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DX = 0x50;
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SetCflag;
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return;
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}
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/* This isn't the right answer, but should be close enough. */
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DX = 0x0943;
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}
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}
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ResetCflag;
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}
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static void ioctlGenericBlkDevReq(struct sigcontext_struct *context)
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{
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BYTE *dataptr = PTR_SEG_OFF_TO_LIN(DS, DX);
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int drive;
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if (BL == 0)
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drive = DOS_GetDefaultDrive();
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else
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drive = BL - 1;
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if (!DOS_ValidDrive(drive)) {
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AX = 0x02;
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SetCflag;
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return;
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}
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if (CH != 0x08) {
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IntBarf(0x21, context);
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return;
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}
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switch (CL) {
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case 0x60: /* get device parameters */
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/* used by w4wgrp's winfile */
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memset(dataptr, 0, 0x26);
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dataptr[0] = 0x04;
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dataptr[6] = 0; /* media type */
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if (drive > 1)
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{
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dataptr[1] = 0x05; /* fixed disk */
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setword(&dataptr[2], 0x01); /* non removable */
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setword(&dataptr[4], 0x300); /* # of cylinders */
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}
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else
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{
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dataptr[1] = 0x07; /* block dev, floppy */
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setword(&dataptr[2], 0x02); /* removable */
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setword(&dataptr[4], 80); /* # of cylinders */
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}
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CreateBPB(drive, &dataptr[7]);
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ResetCflag;
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return;
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default:
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IntBarf(0x21, context);
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}
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}
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static void GetSystemDate(struct sigcontext_struct *context)
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{
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struct tm *now;
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time_t ltime;
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ltime = time(NULL);
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now = localtime(<ime);
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CX = now->tm_year + 1900;
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DX = ((now->tm_mon + 1) << 8) | now->tm_mday;
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AX = now->tm_wday;
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}
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static void GetSystemTime(struct sigcontext_struct *context)
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{
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struct tm *now;
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struct timeval tv;
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gettimeofday(&tv,NULL); /* Note use of gettimeofday(), instead of time() */
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now = localtime(&tv.tv_sec);
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CX = (now->tm_hour<<8) | now->tm_min;
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DX = (now->tm_sec<<8) | tv.tv_usec/10000;
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/* Note hundredths of seconds */
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}
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static void GetExtendedErrorInfo(struct sigcontext_struct *context)
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{
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AL = ExtendedError;
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BX = (ErrorClass << 8) | Action;
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CH = ErrorLocus << 8;
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}
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static void CreateFile(struct sigcontext_struct *context)
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{
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int handle;
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if ((handle = open(DOS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(DS,DX)),
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O_CREAT | O_TRUNC | O_RDWR )) == -1) {
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errno_to_doserr();
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AL = ExtendedError;
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SetCflag;
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return;
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}
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Error (0,0,0);
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EAX = (EAX & 0xffff0000) | handle;
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ResetCflag;
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}
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void OpenExistingFile(struct sigcontext_struct *context)
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{
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int handle;
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int mode;
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int lock;
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switch (AX & 0x0007)
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{
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case 0:
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mode = O_RDONLY;
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break;
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case 1:
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mode = O_WRONLY;
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break;
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default:
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mode = O_RDWR;
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break;
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}
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if ((handle = open(DOS_GetUnixFileName(PTR_SEG_OFF_TO_LIN(DS,DX)),
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mode)) == -1)
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{
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if( Options.allowReadOnly )
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handle = open( DOS_GetUnixFileName(PTR_SEG_OFF_TO_LIN(DS,DX)),
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O_RDONLY );
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if( handle == -1 )
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{
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errno_to_doserr();
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AL = ExtendedError;
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SetCflag;
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return;
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}
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}
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switch (AX & 0x0070)
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{
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case 0x00: /* compatability mode */
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case 0x40: /* DENYNONE */
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lock = -1;
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break;
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case 0x30: /* DENYREAD */
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dprintf_int(stddeb,
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"OpenExistingFile (%s): DENYREAD changed to DENYALL\n",
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(char *)PTR_SEG_OFF_TO_LIN(DS,DX));
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case 0x10: /* DENYALL */
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lock = LOCK_EX;
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break;
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case 0x20: /* DENYWRITE */
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lock = LOCK_SH;
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break;
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default:
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lock = -1;
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}
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|
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if (lock != -1)
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|
{
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|
|
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int result,retries=sharing_retries;
|
|
{
|
|
result = flock(handle, lock | LOCK_NB);
|
|
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();
|
|
EAX = (EAX & 0xffffff00) | ExtendedError;
|
|
close(handle);
|
|
SetCflag;
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
Error (0,0,0);
|
|
EAX = (EAX & 0xffff0000) | handle;
|
|
ResetCflag;
|
|
}
|
|
|
|
static void CloseFile(struct sigcontext_struct *context)
|
|
{
|
|
if (close(BX) == -1) {
|
|
errno_to_doserr();
|
|
AL = ExtendedError;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
Error (0,0,0);
|
|
AL = NoError;
|
|
ResetCflag;
|
|
}
|
|
|
|
static void RenameFile(struct sigcontext_struct *context)
|
|
{
|
|
char *newname, *oldname;
|
|
|
|
dprintf_int(stddeb,"int21: renaming %s to %s\n",
|
|
(char *)PTR_SEG_OFF_TO_LIN(DS,DX), (char *)PTR_SEG_OFF_TO_LIN(ES,DI) );
|
|
|
|
oldname = DOS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(DS,DX) );
|
|
newname = DOS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(ES,DI) );
|
|
|
|
rename( oldname, newname);
|
|
ResetCflag;
|
|
}
|
|
|
|
|
|
static void MakeDir(struct sigcontext_struct *context)
|
|
{
|
|
char *dirname;
|
|
|
|
dprintf_int(stddeb,"int21: makedir %s\n", (char *)PTR_SEG_OFF_TO_LIN(DS,DX) );
|
|
|
|
if ((dirname = DOS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(DS,DX) ))== NULL) {
|
|
AL = CanNotMakeDir;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
|
|
if (mkdir(dirname,0) == -1) {
|
|
AL = CanNotMakeDir;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
ResetCflag;
|
|
}
|
|
|
|
static void ChangeDir(struct sigcontext_struct *context)
|
|
{
|
|
int drive;
|
|
char *dirname = PTR_SEG_OFF_TO_LIN(DS,DX);
|
|
drive = DOS_GetDefaultDrive();
|
|
dprintf_int(stddeb,"int21: changedir %s\n", dirname);
|
|
if (dirname != NULL && dirname[1] == ':') {
|
|
drive = toupper(dirname[0]) - 'A';
|
|
dirname += 2;
|
|
}
|
|
if (!DOS_ChangeDir(drive, dirname))
|
|
{
|
|
SetCflag;
|
|
AX=0x03;
|
|
}
|
|
}
|
|
|
|
static void RemoveDir(struct sigcontext_struct *context)
|
|
{
|
|
char *dirname;
|
|
|
|
dprintf_int(stddeb,"int21: removedir %s\n", (char *)PTR_SEG_OFF_TO_LIN(DS,DX) );
|
|
|
|
if ((dirname = DOS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(DS,DX) ))== NULL) {
|
|
AL = CanNotMakeDir;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
|
|
/*
|
|
if (strcmp(unixname,DosDrives[drive].CurrentDirectory)) {
|
|
AL = CanNotRemoveCwd;
|
|
SetCflag;
|
|
}
|
|
*/
|
|
if (rmdir(dirname) == -1) {
|
|
AL = CanNotMakeDir;
|
|
SetCflag;
|
|
}
|
|
ResetCflag;
|
|
}
|
|
|
|
static void ExecProgram(struct sigcontext_struct *context)
|
|
{
|
|
execl("wine", DOS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(DS,DX)) );
|
|
}
|
|
|
|
static void FindNext(struct sigcontext_struct *context)
|
|
{
|
|
struct dosdirent *dp;
|
|
struct tm *t;
|
|
BYTE *dta = GetCurrentDTA();
|
|
|
|
memcpy(&dp, dta+0x11, sizeof(dp));
|
|
|
|
do {
|
|
if ((dp = DOS_readdir(dp)) == NULL) {
|
|
Error(NoMoreFiles, EC_MediaError , EL_Disk);
|
|
AL = NoMoreFiles;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
} /* while (*(dta + 0x0c) != dp->attribute);*/
|
|
while ( ( dp->search_attribute & dp->attribute) != dp->attribute);
|
|
|
|
*(dta + 0x15) = dp->attribute;
|
|
setword(&dta[0x0d], dp->entnum);
|
|
|
|
t = localtime(&(dp->filetime));
|
|
setword(&dta[0x16], (t->tm_hour << 11) + (t->tm_min << 5) +
|
|
(t->tm_sec / 2)); /* time */
|
|
setword(&dta[0x18], ((t->tm_year - 80) << 9) + (t->tm_mon << 5) +
|
|
(t->tm_mday)); /* date */
|
|
setdword(&dta[0x1a], dp->filesize);
|
|
strncpy(dta + 0x1e, dp->filename, 13);
|
|
|
|
AL = 0;
|
|
ResetCflag;
|
|
|
|
dprintf_int(stddeb, "int21: FindNext -- (%s) index=%d size=%ld\n", dp->filename, dp->entnum, dp->filesize);
|
|
return;
|
|
}
|
|
|
|
static void FindFirst(struct sigcontext_struct *context)
|
|
{
|
|
BYTE drive, *path = PTR_SEG_OFF_TO_LIN(DS, DX);
|
|
struct dosdirent *dp;
|
|
|
|
BYTE *dta = GetCurrentDTA();
|
|
|
|
dprintf_int(stddeb, "int21: FindFirst path = %s\n", path);
|
|
|
|
if ((*path)&&(path[1] == ':')) {
|
|
drive = (islower(*path) ? toupper(*path) : *path) - 'A';
|
|
|
|
if (!DOS_ValidDrive(drive)) {
|
|
Error(InvalidDrive, EC_MediaError , EL_Disk);
|
|
AL = 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);
|
|
|
|
AL = 0;
|
|
ResetCflag;
|
|
return;
|
|
}
|
|
|
|
if ((dp = DOS_opendir(path)) == NULL) {
|
|
Error(PathNotFound, EC_MediaError, EL_Disk);
|
|
AL = FileNotFound;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
|
|
dp->search_attribute = ECX & (FA_LABEL | FA_DIREC);
|
|
memcpy(dta + 0x11, &dp, sizeof(dp));
|
|
FindNext(context);
|
|
}
|
|
|
|
static void GetFileDateTime(struct sigcontext_struct *context)
|
|
{
|
|
struct stat filestat;
|
|
struct tm *now;
|
|
|
|
fstat( BX, &filestat );
|
|
now = localtime (&filestat.st_mtime);
|
|
|
|
CX = ((now->tm_hour * 0x2000) + (now->tm_min * 0x20) + now->tm_sec/2);
|
|
DX = ((now->tm_year * 0x200) + (now->tm_mon * 0x20) + now->tm_mday);
|
|
|
|
ResetCflag;
|
|
}
|
|
|
|
static void SetFileDateTime(struct sigcontext_struct *context)
|
|
{
|
|
char *filename;
|
|
struct utimbuf filetime;
|
|
|
|
/* FIXME: Argument isn't the name of the file in DS:DX,
|
|
but the file handle in BX */
|
|
filename = DOS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(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());
|
|
|
|
dprintf_int(stddeb,"CreateTempFile %s\n",temp);
|
|
|
|
handle = open(DOS_GetUnixFileName(temp), O_CREAT | O_TRUNC | O_RDWR);
|
|
|
|
if (handle == -1) {
|
|
AL = WriteProtected;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
|
|
strcpy(PTR_SEG_OFF_TO_LIN(DS,DX), temp);
|
|
|
|
AX = handle;
|
|
ResetCflag;
|
|
}
|
|
|
|
static void CreateNewFile(struct sigcontext_struct *context)
|
|
{
|
|
int handle;
|
|
|
|
if ((handle = open(DOS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(DS,DX) ), O_CREAT | O_EXCL | O_RDWR)) == -1) {
|
|
AL = WriteProtected;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
|
|
AX = handle;
|
|
ResetCflag;
|
|
}
|
|
|
|
static void GetCurrentDirectory(struct sigcontext_struct *context)
|
|
{
|
|
int drive;
|
|
|
|
if (DL == 0)
|
|
drive = DOS_GetDefaultDrive();
|
|
else
|
|
drive = DL - 1;
|
|
|
|
if (!DOS_ValidDrive(drive)) {
|
|
AL = InvalidDrive;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
|
|
strcpy(PTR_SEG_OFF_TO_LIN(DS,SI), DOS_GetCurrentDir(drive) );
|
|
ResetCflag;
|
|
}
|
|
|
|
static void GetDiskSerialNumber(struct sigcontext_struct *context)
|
|
{
|
|
int drive;
|
|
BYTE *dataptr = PTR_SEG_OFF_TO_LIN(DS, DX);
|
|
DWORD serialnumber;
|
|
|
|
if (BL == 0)
|
|
drive = DOS_GetDefaultDrive();
|
|
else
|
|
drive = BL - 1;
|
|
|
|
if (!DOS_ValidDrive(drive)) {
|
|
AL =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);
|
|
|
|
AL = 0;
|
|
ResetCflag;
|
|
}
|
|
|
|
static void SetDiskSerialNumber(struct sigcontext_struct *context)
|
|
{
|
|
int drive;
|
|
BYTE *dataptr = PTR_SEG_OFF_TO_LIN(DS, DX);
|
|
DWORD serialnumber;
|
|
|
|
if (BL == 0)
|
|
drive = DOS_GetDefaultDrive();
|
|
else
|
|
drive = BL - 1;
|
|
|
|
if (!DOS_ValidDrive(drive)) {
|
|
AL = InvalidDrive;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
|
|
serialnumber = dataptr[1] + (dataptr[2] << 8) + (dataptr[3] << 16) +
|
|
(dataptr[4] << 24);
|
|
|
|
DOS_SetSerialNumber(drive, serialnumber);
|
|
AL = 1L;
|
|
ResetCflag;
|
|
}
|
|
|
|
static void DumpFCB(BYTE *fcb)
|
|
{
|
|
int x, y;
|
|
|
|
fcb -= 7;
|
|
|
|
for (y = 0; y !=2 ; y++) {
|
|
for (x = 0; x!=15;x++)
|
|
dprintf_int(stddeb, "%02x ", *fcb++);
|
|
dprintf_int(stddeb,"\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 = PTR_SEG_OFF_TO_LIN(DS, DX);
|
|
struct fcb *standard_fcb;
|
|
struct fcb *output_fcb;
|
|
int drive;
|
|
char path[12];
|
|
|
|
BYTE *dta = GetCurrentDTA();
|
|
|
|
DumpFCB( fcb );
|
|
|
|
if ((*fcb) == 0xff)
|
|
{
|
|
standard_fcb = (struct fcb *)(fcb + 7);
|
|
output_fcb = (struct fcb *)(dta + 7);
|
|
*dta = 0xff;
|
|
}
|
|
else
|
|
{
|
|
standard_fcb = (struct fcb *)fcb;
|
|
output_fcb = (struct fcb *)dta;
|
|
}
|
|
|
|
if (standard_fcb->drive)
|
|
{
|
|
drive = standard_fcb->drive - 1;
|
|
if (!DOS_ValidDrive(drive))
|
|
{
|
|
Error (InvalidDrive, EC_MediaError, EL_Disk);
|
|
AL = 0xff;
|
|
return;
|
|
}
|
|
}
|
|
else
|
|
drive = DOS_GetDefaultDrive();
|
|
|
|
output_fcb->drive = drive;
|
|
|
|
if (*(fcb) == 0xff)
|
|
{
|
|
if (*(fcb+6) & FA_LABEL) /* return volume label */
|
|
{
|
|
*(dta+6) = FA_LABEL;
|
|
memset(&output_fcb->name, ' ', 11);
|
|
if (DOS_GetVolumeLabel(drive) != NULL)
|
|
{
|
|
strncpy(output_fcb->name, DOS_GetVolumeLabel(drive), 11);
|
|
AL = 0x00;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
strncpy(output_fcb->name, standard_fcb->name, 11);
|
|
if (*fcb == 0xff)
|
|
*(dta+6) = ( *(fcb+6) & (!FA_DIREC));
|
|
|
|
sprintf(path,"%c:*.*",drive+'A');
|
|
if ((output_fcb->directory = DOS_opendir(path))==NULL)
|
|
{
|
|
Error (PathNotFound, EC_MediaError, EL_Disk);
|
|
AL = 0xff;
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
static void DeleteFileFCB(struct sigcontext_struct *context)
|
|
{
|
|
BYTE *fcb = PTR_SEG_OFF_TO_LIN(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);
|
|
AL = 0xffL;
|
|
return;
|
|
}
|
|
|
|
strcpy(temp, DOS_GetCurrentDir(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);
|
|
AL = 0;
|
|
}
|
|
|
|
static void RenameFileFCB(struct sigcontext_struct *context)
|
|
{
|
|
BYTE *fcb = PTR_SEG_OFF_TO_LIN(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);
|
|
AL = 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);
|
|
dprintf_int(stddeb, "int21: renamefile %s -> %s\n",
|
|
oldname, newname);
|
|
}
|
|
DOS_closedir(dp);
|
|
AL = 0;
|
|
}
|
|
|
|
|
|
|
|
static void fLock (struct sigcontext_struct * context)
|
|
{
|
|
struct flock f;
|
|
int result,retries=sharing_retries;
|
|
|
|
f.l_start = MAKELONG(DX,CX);
|
|
f.l_len = MAKELONG(DI,SI);
|
|
f.l_whence = 0;
|
|
f.l_pid = 0;
|
|
|
|
switch ( AX & 0xff )
|
|
{
|
|
case 0x00: /* LOCK */
|
|
f.l_type = F_WRLCK;
|
|
break;
|
|
|
|
case 0x01: /* UNLOCK */
|
|
f.l_type = F_UNLCK;
|
|
break;
|
|
|
|
default:
|
|
EAX = (EAX & 0xffff0000) | 0x0001;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
|
|
{
|
|
result = fcntl(BX,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)
|
|
{
|
|
errno_to_doserr();
|
|
EAX = (EAX & 0xffffff00) | ExtendedError;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
|
|
Error (0,0,0);
|
|
ResetCflag;
|
|
}
|
|
|
|
|
|
static void GetFileAttribute (struct sigcontext_struct * context)
|
|
{
|
|
char *filename = PTR_SEG_OFF_TO_LIN (DS,DX);
|
|
struct stat s;
|
|
int res,cx;
|
|
|
|
res = stat(DOS_GetUnixFileName(filename), &s);
|
|
if (res==-1)
|
|
{
|
|
errno_to_doserr();
|
|
EAX = (EAX & 0xffffff00) | ExtendedError;
|
|
SetCflag;
|
|
return;
|
|
}
|
|
|
|
cx = 0;
|
|
if (S_ISDIR(s.st_mode))
|
|
cx|=0x10;
|
|
if ((S_IWRITE & s.st_mode) != S_IWRITE)
|
|
cx|=0x01;
|
|
|
|
ECX = (ECX & 0xffff0000) | cx;
|
|
ResetCflag;
|
|
Error (0,0,0);
|
|
}
|
|
|
|
|
|
|
|
/************************************************************************/
|
|
|
|
int do_int21(struct sigcontext_struct * context)
|
|
{
|
|
int drive;
|
|
|
|
dprintf_int(stddeb,"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);
|
|
|
|
if (AH == 0x59)
|
|
{
|
|
GetExtendedErrorInfo(context);
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
Error (0,0,0);
|
|
switch(AH)
|
|
{
|
|
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 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 */
|
|
IntBarf(0x21, 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 0x6b: /* NULL FUNCTION */
|
|
IntBarf(0x21, context);
|
|
EAX &= 0xff00;
|
|
break;
|
|
|
|
case 0x5c: /* "FLOCK" - RECORD LOCKING */
|
|
fLock(context);
|
|
break;
|
|
|
|
case 0x0d: /* DISK BUFFER FLUSH */
|
|
ResetCflag; /* dos 6+ only */
|
|
break;
|
|
|
|
case 0x0e: /* SELECT DEFAULT DRIVE */
|
|
if (!DOS_ValidDrive(DL)) {
|
|
Error (InvalidDrive, EC_MediaError, EL_Disk);
|
|
break;
|
|
} else {
|
|
DOS_SetDefaultDrive(DL);
|
|
AX = MAX_DOS_DRIVES;
|
|
Error(0,0,0);
|
|
}
|
|
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 */
|
|
AL = DOS_GetDefaultDrive();
|
|
Error (0,0,0);
|
|
break;
|
|
|
|
case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
|
|
{
|
|
TDB *pTask = (TDB *)GlobalLock( GetCurrentTask() );
|
|
pTask->dta = MAKELONG( DX, DS );
|
|
}
|
|
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, DOS_GetDefaultDrive());
|
|
break;
|
|
|
|
case 0x25: /* SET INTERRUPT VECTOR */
|
|
/* Ignore any attempt to set a segment vector */
|
|
dprintf_int(stddeb,
|
|
"int21: set interrupt vector %2x (%04x:%04x)\n",
|
|
AL, 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 */
|
|
{
|
|
TDB *pTask = (TDB *)GlobalLock( GetCurrentTask() );
|
|
ES = SELECTOROF( pTask->dta );
|
|
BX = OFFSETOF( pTask->dta );
|
|
}
|
|
break;
|
|
|
|
case 0x30: /* GET DOS VERSION */
|
|
AX = DOSVERSION;
|
|
BX = 0x0012; /* 0x123456 is Wine's serial # */
|
|
CX = 0x3456;
|
|
break;
|
|
|
|
case 0x31: /* TERMINATE AND STAY RESIDENT */
|
|
IntBarf(0x21, context);
|
|
break;
|
|
|
|
case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
|
|
GetDrivePB(context, (DL == 0) ? (DOS_GetDefaultDrive()) : (DL-1));
|
|
break;
|
|
|
|
case 0x33: /* MULTIPLEXED */
|
|
switch (AL) {
|
|
case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
|
|
if (!(AL))
|
|
EDX &= 0xff00L;
|
|
break;
|
|
|
|
case 0x01: /* SET EXTENDED BREAK STATE */
|
|
break;
|
|
|
|
case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
|
|
DL = 0;
|
|
break;
|
|
|
|
case 0x05: /* GET BOOT DRIVE */
|
|
DL = 2;
|
|
/* c: is Wine's bootdrive */
|
|
break;
|
|
|
|
case 0x06: /* GET TRUE VERSION NUMBER */
|
|
EBX = DOSVERSION;
|
|
EDX = 0x00;
|
|
break;
|
|
|
|
default:
|
|
IntBarf(0x21, context);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x34: /* GET ADDRESS OF INDOS FLAG */
|
|
ES = DosHeapHandle;
|
|
BX = (int)&heap->InDosFlag - (int)heap;
|
|
break;
|
|
|
|
case 0x35: /* GET INTERRUPT VECTOR */
|
|
/* Return a NULL segment selector - this will bomb,
|
|
if anyone ever tries to use it */
|
|
dprintf_int(stddeb, "int21: get interrupt vector %2x\n",
|
|
AX & 0xff);
|
|
ES = 0;
|
|
BX = 0;
|
|
break;
|
|
|
|
case 0x36: /* GET FREE DISK SPACE */
|
|
GetFreeDiskSpace(context);
|
|
break;
|
|
|
|
case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
|
|
AX = 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 */
|
|
if (unlink( DOS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(DS,DX)) ) == -1) {
|
|
errno_to_doserr();
|
|
AL = ExtendedError;
|
|
SetCflag;
|
|
break;
|
|
}
|
|
Error(0,0,0);
|
|
ResetCflag;
|
|
break;
|
|
|
|
case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
|
|
SeekFile(context);
|
|
break;
|
|
|
|
case 0x43: /* FILE ATTRIBUTES */
|
|
switch (AL)
|
|
{
|
|
case 0x00:
|
|
GetFileAttribute(context);
|
|
break;
|
|
case 0x01:
|
|
ResetCflag;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x44: /* IOCTL */
|
|
switch (AL)
|
|
{
|
|
case 0x00:
|
|
ioctlGetDeviceInfo(context);
|
|
break;
|
|
|
|
case 0x08: /* Check if drive is removable. */
|
|
drive = BL ? (BL - 1) : DOS_GetDefaultDrive();
|
|
if(!DOS_ValidDrive(drive))
|
|
{
|
|
SetCflag;
|
|
AX = 0x000F; /* Bad drive number */
|
|
}
|
|
else
|
|
{
|
|
if(drive > 1)
|
|
EAX = (EAX & 0xFFFF0000) | 0x0001; /* not removable */
|
|
else
|
|
EAX = (EAX & 0xFFFF0000); /* removable */
|
|
ResetCflag;
|
|
}
|
|
break;
|
|
|
|
case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
|
|
drive = BL ? (BL - 1) : DOS_GetDefaultDrive();
|
|
if(!DOS_ValidDrive(drive))
|
|
{
|
|
SetCflag;
|
|
AX = 0x000F; /* Bad drive number */
|
|
}
|
|
else
|
|
{
|
|
EDX = (EDX & 0xffff0000) | (1<<9) | (1<<12) | (1<<15);
|
|
ResetCflag;
|
|
}
|
|
break;
|
|
|
|
case 0x0b: /* SET SHARING RETRY COUNT */
|
|
if (!CX)
|
|
{
|
|
EAX = (EAX & 0xffff0000) | 0x0001;
|
|
SetCflag;
|
|
break;
|
|
}
|
|
sharing_pause = CX;
|
|
if (!DX)
|
|
sharing_retries = DX;
|
|
ResetCflag;
|
|
break;
|
|
|
|
case 0x0d:
|
|
ioctlGenericBlkDevReq(context);
|
|
break;
|
|
|
|
case 0x0F: /* Set logical drive mapping */
|
|
/* FIXME: Not implemented at the moment, always returns error
|
|
*/
|
|
EAX = (EAX & 0xFFFF0000) | 0x0001; /* invalid function */
|
|
SetCflag;
|
|
break;
|
|
|
|
default:
|
|
IntBarf(0x21, context);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
|
|
case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
|
|
AX = dup(BX);
|
|
ResetCflag;
|
|
break;
|
|
|
|
case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
|
|
GetCurrentDirectory(context);
|
|
AX = 0x0100;
|
|
/* intlist: many Microsoft products for Windows rely on this */
|
|
break;
|
|
|
|
case 0x48: /* ALLOCATE MEMORY */
|
|
case 0x49: /* FREE MEMORY */
|
|
case 0x4a: /* RESIZE MEMORY BLOCK */
|
|
IntBarf(0x21, context);
|
|
break;
|
|
|
|
case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
|
|
ExecProgram(context);
|
|
break;
|
|
|
|
case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
|
|
TASK_KillCurrentTask( AL );
|
|
break;
|
|
|
|
case 0x4d: /* GET RETURN CODE */
|
|
AL = NoError; /* normal exit */
|
|
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 */
|
|
ES = 0x0;
|
|
BX = 0x0;
|
|
IntBarf(0x21, context);
|
|
break;
|
|
|
|
case 0x56: /* "RENAME" - RENAME FILE */
|
|
RenameFile(context);
|
|
break;
|
|
|
|
case 0x57: /* FILE DATE AND TIME */
|
|
switch (AL)
|
|
{
|
|
case 0x00:
|
|
GetFileDateTime(context);
|
|
break;
|
|
case 0x01:
|
|
SetFileDateTime(context);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
|
|
switch (AL)
|
|
{
|
|
case 0x00:
|
|
AL = 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 0x5d: /* NETWORK */
|
|
case 0x5e:
|
|
/* network software not installed */
|
|
AL = NoNetwork;
|
|
SetCflag;
|
|
break;
|
|
|
|
case 0x5f: /* NETWORK */
|
|
switch (AL)
|
|
{
|
|
case 0x07: /* ENABLE DRIVE */
|
|
if (!DOS_EnableDrive(DL))
|
|
{
|
|
Error(InvalidDrive, EC_MediaError , EL_Disk);
|
|
AL = InvalidDrive;
|
|
SetCflag;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
ResetCflag;
|
|
break;
|
|
}
|
|
case 0x08: /* DISABLE DRIVE */
|
|
if (!DOS_DisableDrive(DL))
|
|
{
|
|
Error(InvalidDrive, EC_MediaError , EL_Disk);
|
|
AL = InvalidDrive;
|
|
SetCflag;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
ResetCflag;
|
|
break;
|
|
}
|
|
default:
|
|
/* network software not installed */
|
|
AL = NoNetwork;
|
|
SetCflag;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
|
|
strncpy(PTR_SEG_OFF_TO_LIN(ES,DI), PTR_SEG_OFF_TO_LIN(DS,SI), strlen(PTR_SEG_OFF_TO_LIN(DS,SI)) & 0x7f);
|
|
ResetCflag;
|
|
break;
|
|
|
|
case 0x61: /* UNUSED */
|
|
case 0x62: /* GET CURRENT PSP ADDRESS */
|
|
case 0x63: /* UNUSED */
|
|
case 0x64: /* OS/2 DOS BOX */
|
|
case 0x65: /* GET EXTENDED COUNTRY INFORMATION */
|
|
IntBarf(0x21, context);
|
|
break;
|
|
|
|
case 0x66: /* GLOBAL CODE PAGE TABLE */
|
|
switch (AL) {
|
|
case 0x01:
|
|
BX = CodePage;
|
|
DX = 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 (AL)
|
|
{
|
|
case 0x00:
|
|
GetDiskSerialNumber(context);
|
|
break;
|
|
case 0x01:
|
|
SetDiskSerialNumber(context);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x6a: /* COMMIT FILE */
|
|
ResetCflag;
|
|
break;
|
|
|
|
case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
|
|
break;
|
|
|
|
default:
|
|
IntBarf(0x21, context);
|
|
return 1;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* DOS3Call
|
|
*/
|
|
void DOS3Call( struct sigcontext_struct context )
|
|
{
|
|
do_int21( &context );
|
|
}
|
|
|
|
void INT21_Init(void)
|
|
{
|
|
if ((DosHeapHandle = GlobalAlloc(GMEM_FIXED,sizeof(struct DosHeap))) == 0)
|
|
{
|
|
fprintf( stderr, "INT21_Init: Out of memory\n");
|
|
exit(1);
|
|
}
|
|
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");
|
|
}
|