1626 lines
47 KiB
C
1626 lines
47 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 "drive.h"
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#include "file.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 "xmalloc.h"
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#include "stddebug.h"
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#include "debug.h"
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#if defined(__svr4__) || defined(_SCO_DS)
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/* SVR4 DOESNT do locking the same way must implement properly */
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#define LOCK_EX 0
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#define LOCK_SH 1
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#define LOCK_NB 8
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#endif
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#define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
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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 CodePage = 437;
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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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BYTE *GetCurrentDTA(void)
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{
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TDB *pTask = (TDB *)GlobalLock16( 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 int INT21_GetFreeDiskSpace(struct sigcontext_struct *context)
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{
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DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
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char root[] = "A:\\";
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*root += DOS_GET_DRIVE( DL_reg(context) );
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if (!GetDiskFreeSpace32A( root, &cluster_sectors, §or_bytes,
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&free_clusters, &total_clusters )) return 0;
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AX_reg(context) = cluster_sectors;
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BX_reg(context) = free_clusters;
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CX_reg(context) = sector_bytes;
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DX_reg(context) = total_clusters;
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return 1;
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}
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static int INT21_GetDriveAllocInfo(struct sigcontext_struct *context)
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{
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if (!INT21_GetFreeDiskSpace( context )) return 0;
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heap->mediaID = 0xf0;
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DS_reg(context) = DosHeapHandle;
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BX_reg(context) = (int)&heap->mediaID - (int)heap;
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return 1;
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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(!DRIVE_IsValid(drive))
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{
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DOS_ERROR( ER_InvalidDrive, EC_MediaError, SA_Abort, EL_Disk );
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AX_reg(context) = 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 = drive < 2 ? 0 : 6; /* 6 for HD, 0 for floppy */
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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 = 64000;
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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_reg(context) = 0x00;
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DS_reg(context) = SELECTOROF(dpbsegptr);
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BX_reg(context) = OFFSETOF(dpbsegptr);
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}
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}
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static void ioctlGetDeviceInfo(struct sigcontext_struct *context)
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{
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dprintf_int (stddeb, "int21: ioctl (%d, GetDeviceInfo)\n", BX_reg(context));
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DX_reg(context) = 0x0942;
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/* bits 0-5 are current drive
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* bit 6 - file has NOT been written..FIXME: correct?
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* bit 8 - generate int24 if no diskspace on write/ read past end of file
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* bit 11 - media not removable
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*/
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RESET_CFLAG(context);
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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_reg(context), DX_reg(context));
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int drive = DOS_GET_DRIVE( BL_reg(context) );
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if (!DRIVE_IsValid(drive))
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{
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DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
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AX_reg(context) = DOS_ExtendedError;
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SET_CFLAG(context);
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return;
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}
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if (CH_reg(context) != 0x08)
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{
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INT_BARF( context, 0x21 );
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return;
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}
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switch (CL_reg(context)) {
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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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RESET_CFLAG(context);
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return;
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default:
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INT_BARF( context, 0x21 );
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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_reg(context) = now->tm_year + 1900;
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DX_reg(context) = ((now->tm_mon + 1) << 8) | now->tm_mday;
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AX_reg(context) = now->tm_wday;
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}
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static void INT21_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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time_t seconds;
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gettimeofday(&tv,NULL); /* Note use of gettimeofday(), instead of time() */
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seconds = tv.tv_sec;
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now = localtime(&seconds);
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CX_reg(context) = (now->tm_hour<<8) | now->tm_min;
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DX_reg(context) = (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 CreateFile(struct sigcontext_struct *context)
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{
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AX_reg(context) = _lcreat( PTR_SEG_OFF_TO_LIN( DS_reg(context),
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DX_reg(context) ), CX_reg(context) );
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if (AX_reg(context) == (WORD)HFILE_ERROR)
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{
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AX_reg(context) = DOS_ExtendedError;
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SET_CFLAG(context);
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}
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}
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void OpenExistingFile(struct sigcontext_struct *context)
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{
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AX_reg(context) = _lopen( PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context)),
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AL_reg(context) );
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if (AX_reg(context) == (WORD)HFILE_ERROR)
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{
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AX_reg(context) = DOS_ExtendedError;
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SET_CFLAG(context);
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}
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#if 0
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int handle;
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int mode;
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int lock;
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dprintf_int (stddeb, "int21: open (%s, %d) = %d\n",
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DOS_GetUnixFileName(PTR_SEG_OFF_TO_LIN(DS_reg(context),
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DX_reg(context))), mode, handle);
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switch (AX_reg(context) & 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_reg(context),DX_reg(context)));
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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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if (lock != -1)
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{
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int result,retries=sharing_retries;
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{
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#if defined(__svr4__) || defined(_SCO_DS)
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printf("Should call flock and needs porting to lockf\n");
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result = 0;
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retries = 0;
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#else
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result = flock(handle, lock | LOCK_NB);
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#endif
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if ( retries && (!result) )
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{
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int i;
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for(i=0;i<32768*((int)sharing_pause);i++)
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result++; /* stop the optimizer */
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for(i=0;i<32768*((int)sharing_pause);i++)
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result--;
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}
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}
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while( (!result) && (!(retries--)) );
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if(result)
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{
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errno_to_doserr();
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AX_reg(context) = ExtendedError;
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close(handle);
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SET_CFLAG(context);
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return;
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}
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}
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Error (0,0,0);
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AX_reg(context) = handle;
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RESET_CFLAG(context);
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#endif
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}
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static void CloseFile(struct sigcontext_struct *context)
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{
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if ((AX_reg(context) = _lclose( BX_reg(context) )) != 0)
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{
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AX_reg(context) = DOS_ExtendedError;
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SET_CFLAG(context);
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}
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}
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void ExtendedOpenCreateFile(struct sigcontext_struct *context)
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{
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BYTE action=DL_reg(context);
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dprintf_int(stddeb, "int21: extended open/create: file= %s \n",
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DOSFS_GetUnixFileName(PTR_SEG_OFF_TO_LIN(DS_reg(context),SI_reg(context)),FALSE));
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/* Shuffle arguments to call OpenExistingFile */
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AL_reg(context) = BL_reg(context);
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DX_reg(context) = SI_reg(context);
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/* BX,CX and DX should be preserved */
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OpenExistingFile(context);
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if ((EFL_reg(context) & 0x0001)==0)
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{ /* It exists */
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dprintf_int(stddeb, "int21: extended open/create %s exists \n",
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DOSFS_GetUnixFileName(PTR_SEG_OFF_TO_LIN(DS_reg(context),SI_reg(context)),TRUE));
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/* Now decide what do do */
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if ((action & 0x07)== 0)
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{
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BX_reg(context) = AX_reg(context);
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CloseFile(context);
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AX_reg(context) = 0x0050;/*File exists*/
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CX_reg(context) = 0;
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SET_CFLAG(context);
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dprintf_int(stddeb, "int21: extended open/create: failed because file exixts \n");
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return;
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}
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if ((action & 0x07)== 2) {
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/* Truncate it, but first check if opend for write */
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if ((BL_reg(context) & 0x0007)== 0) {
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BX_reg(context) = AX_reg(context);
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CloseFile(context);
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dprintf_int(stddeb, "int21: extended open/create: failed, trunc on ro file");
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AX_reg(context) = 0x000C;/*Access code invalid*/
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CX_reg(context) = 0;
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SET_CFLAG(context);
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return;
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}
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/* Shuffle arguments to call CloseFile */
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dprintf_int(stddeb, "int21: extended open/create: Closing before truncate\n");
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BX_reg(context) = AX_reg(context);
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/* BX and DX should be preserved */
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CloseFile(context);
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if (EFL_reg(context) & 0x0001) {
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dprintf_int(stddeb, "int21: extended open/create: close before trunc failed");
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AX_reg(context) = 0x0019;/*Seek Error*/
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CX_reg(context) = 0;
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SET_CFLAG(context);
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}
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/* Shuffle arguments to call CreateFile */
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dprintf_int(stddeb, "int21: extended open/create: Truncating\n");
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AL_reg(context) = BL_reg(context);
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/* CX is still the same */
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DX_reg(context) = SI_reg(context);
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CreateFile(context);
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if (EFL_reg(context) & 0x0001) { /*no file open, flags set */
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dprintf_int(stddeb, "int21: extended open/create: truncfailed");
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return;
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}
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CX_reg(context) = 3;
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return;
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}
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CX_reg(context) = 1;
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return;
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}
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else /* file does not exist */
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{
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RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
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dprintf_int(stddeb, "int21: extended open/create %s dosen't exists \n",
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DOSFS_GetUnixFileName(PTR_SEG_OFF_TO_LIN(DS_reg(context),SI_reg(context)),FALSE));
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if ((action & 0xF0)== 0) {
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CX_reg(context) = 0;
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SET_CFLAG(context);
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dprintf_int(stddeb, "int21: extended open/create: failed, file dosen't exist\n");
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return;
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}
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/* Shuffle arguments to call CreateFile */
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dprintf_int(stddeb, "int21: extended open/create: Creating\n");
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AL_reg(context) = BL_reg(context);
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/* CX should still be the same */
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DX_reg(context) = SI_reg(context);
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CreateFile(context);
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if (EFL_reg(context) & 0x0001) { /*no file open, flags set */
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dprintf_int(stddeb, "int21: extended open/create: create failed\n");
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return;
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}
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CX_reg(context) = 2;
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return;
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}
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}
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static int INT21_RenameFile(struct sigcontext_struct *context)
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{
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const char *newname, *oldname;
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char *buffer;
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/* FIXME: should not rename over an existing file */
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dprintf_int(stddeb,"int21: renaming %s to %s\n",
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(char *)PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context)),
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(char *)PTR_SEG_OFF_TO_LIN(ES_reg(context),DI_reg(context)));
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oldname = DOSFS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(DS_reg(context),
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DX_reg(context)), TRUE );
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if (!oldname) return 0;
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buffer = xstrdup( oldname );
|
|
newname = DOSFS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(ES_reg(context),
|
|
DI_reg(context)), FALSE );
|
|
if (!newname)
|
|
{
|
|
free( buffer );
|
|
return 0;
|
|
}
|
|
|
|
if (rename( buffer, newname) == -1)
|
|
{
|
|
FILE_SetDosError();
|
|
free( buffer );
|
|
return 0;
|
|
}
|
|
free( buffer );
|
|
return 1;
|
|
}
|
|
|
|
|
|
static void INT21_ChangeDir(struct sigcontext_struct *context)
|
|
{
|
|
int drive;
|
|
char *dirname = PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context));
|
|
|
|
dprintf_int(stddeb,"int21: changedir %s\n", dirname);
|
|
if (dirname[0] && (dirname[1] == ':'))
|
|
{
|
|
drive = toupper(dirname[0]) - 'A';
|
|
dirname += 2;
|
|
}
|
|
else drive = DRIVE_GetCurrentDrive();
|
|
if (!DRIVE_Chdir( drive, dirname ))
|
|
{
|
|
AX_reg(context) = DOS_ExtendedError;
|
|
SET_CFLAG(context);
|
|
}
|
|
}
|
|
|
|
|
|
static int INT21_FindFirst(struct sigcontext_struct *context)
|
|
{
|
|
const char *path, *unixPath, *mask;
|
|
char *p;
|
|
FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA();
|
|
|
|
path = (const char *)PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
|
|
dta->unixPath = NULL;
|
|
if (!(unixPath = DOSFS_GetUnixFileName( path, FALSE )))
|
|
{
|
|
AX_reg(context) = DOS_ExtendedError;
|
|
SET_CFLAG(context);
|
|
return 0;
|
|
}
|
|
dta->unixPath = xstrdup( unixPath );
|
|
p = strrchr( dta->unixPath, '/' );
|
|
*p = '\0';
|
|
if (!(mask = DOSFS_ToDosFCBFormat( p + 1 )))
|
|
{
|
|
free( dta->unixPath );
|
|
dta->unixPath = NULL;
|
|
DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
|
|
AX_reg(context) = ER_FileNotFound;
|
|
SET_CFLAG(context);
|
|
return 0;
|
|
}
|
|
memcpy( dta->mask, mask, sizeof(dta->mask) );
|
|
dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
|
|
: DRIVE_GetCurrentDrive();
|
|
dta->count = 0;
|
|
dta->search_attr = CL_reg(context);
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int INT21_FindNext(struct sigcontext_struct *context)
|
|
{
|
|
FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA();
|
|
DOS_DIRENT entry;
|
|
int count;
|
|
|
|
if (!dta->unixPath) return 0;
|
|
if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, dta->drive,
|
|
dta->search_attr, dta->count, &entry )))
|
|
{
|
|
free( dta->unixPath );
|
|
dta->unixPath = NULL;
|
|
return 0;
|
|
}
|
|
if ((int)dta->count + count > 0xffff)
|
|
{
|
|
fprintf( stderr, "Too many directory entries in %s\n", dta->unixPath );
|
|
free( dta->unixPath );
|
|
dta->unixPath = NULL;
|
|
return 0;
|
|
}
|
|
dta->count += count;
|
|
dta->fileattr = entry.attr;
|
|
dta->filetime = entry.time;
|
|
dta->filedate = entry.date;
|
|
dta->filesize = entry.size;
|
|
strcpy( dta->filename, DOSFS_ToDosDTAFormat( entry.name ) );
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int INT21_CreateTempFile(struct sigcontext_struct *context)
|
|
{
|
|
static int counter = 0;
|
|
char *name = PTR_SEG_OFF_TO_LIN( DS_reg(context), DX_reg(context) );
|
|
char *p = name + strlen(name);
|
|
|
|
for (;;)
|
|
{
|
|
sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
|
|
counter = (counter + 1) % 1000;
|
|
|
|
if ((AX_reg(context) = _lcreat_uniq( name, 0 )) != (WORD)HFILE_ERROR)
|
|
{
|
|
dprintf_int( stddeb, "INT21_CreateTempFile: created %s\n", name );
|
|
return 1;
|
|
}
|
|
if (DOS_ExtendedError != ER_FileExists) return 0;
|
|
}
|
|
}
|
|
|
|
|
|
static int INT21_GetCurrentDirectory(struct sigcontext_struct *context)
|
|
{
|
|
int drive = DOS_GET_DRIVE( DL_reg(context) );
|
|
char *ptr = (char *)PTR_SEG_OFF_TO_LIN( DS_reg(context), SI_reg(context) );
|
|
|
|
if (!DRIVE_IsValid(drive))
|
|
{
|
|
DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
|
|
return 0;
|
|
}
|
|
|
|
lstrcpyn32A( ptr, DRIVE_GetDosCwd(drive), 64 );
|
|
if (!ptr[0]) strcpy( ptr, "\\" );
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int INT21_GetDiskSerialNumber(struct sigcontext_struct *context)
|
|
{
|
|
BYTE *dataptr = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
|
|
int drive = DOS_GET_DRIVE( BL_reg(context) );
|
|
|
|
if (!DRIVE_IsValid(drive))
|
|
{
|
|
DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
|
|
return 0;
|
|
}
|
|
|
|
*(WORD *)dataptr = 0;
|
|
*(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
|
|
memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
|
|
strncpy(dataptr + 0x11, "FAT16 ", 8);
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int INT21_SetDiskSerialNumber(struct sigcontext_struct *context)
|
|
{
|
|
BYTE *dataptr = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
|
|
int drive = DOS_GET_DRIVE( BL_reg(context) );
|
|
|
|
if (!DRIVE_IsValid(drive))
|
|
{
|
|
DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
|
|
return 0;
|
|
}
|
|
|
|
DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
|
|
return 1;
|
|
}
|
|
|
|
|
|
/* microsoft's programmers should be shot for using CP/M style int21
|
|
calls in Windows for Workgroup's winfile.exe */
|
|
|
|
static int INT21_FindFirstFCB( struct sigcontext_struct *context )
|
|
{
|
|
BYTE *fcb = (BYTE *)PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
|
|
FINDFILE_FCB *pFCB;
|
|
BYTE attr;
|
|
char buffer[] = "A:.";
|
|
const char *unixPath;
|
|
|
|
if (*fcb == 0xff)
|
|
{
|
|
attr = fcb[6];
|
|
pFCB = (FINDFILE_FCB *)(fcb + 7);
|
|
}
|
|
else
|
|
{
|
|
attr = 0;
|
|
pFCB = (FINDFILE_FCB *)fcb;
|
|
}
|
|
|
|
buffer[0] += DOS_GET_DRIVE( pFCB->drive );
|
|
pFCB->unixPath = NULL;
|
|
if (!(unixPath = DOSFS_GetUnixFileName( buffer, TRUE ))) return 0;
|
|
pFCB->unixPath = xstrdup( unixPath );
|
|
pFCB->count = 0;
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int INT21_FindNextFCB( struct sigcontext_struct *context )
|
|
{
|
|
BYTE *fcb = (BYTE *)PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
|
|
FINDFILE_FCB *pFCB;
|
|
DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA();
|
|
DOS_DIRENT entry;
|
|
BYTE attr;
|
|
int count;
|
|
|
|
if (*fcb == 0xff)
|
|
{
|
|
attr = fcb[6];
|
|
pFCB = (FINDFILE_FCB *)(fcb + 7);
|
|
}
|
|
else
|
|
{
|
|
attr = 0;
|
|
pFCB = (FINDFILE_FCB *)fcb;
|
|
}
|
|
|
|
if (!pFCB->unixPath) return 0;
|
|
if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename,
|
|
DOS_GET_DRIVE( pFCB->drive ), attr,
|
|
pFCB->count, &entry )))
|
|
{
|
|
free( pFCB->unixPath );
|
|
pFCB->unixPath = NULL;
|
|
return 0;
|
|
}
|
|
pFCB->count += count;
|
|
|
|
memcpy( pResult->filename, entry.name, sizeof(pResult->filename) );
|
|
pResult->fileattr = entry.attr;
|
|
memset( pResult->reserved, 0, sizeof(pResult->reserved) );
|
|
pResult->filetime = entry.time;
|
|
pResult->filedate = entry.date;
|
|
pResult->cluster = 0; /* what else? */
|
|
pResult->filesize = entry.size;
|
|
return 1;
|
|
}
|
|
|
|
|
|
static void DeleteFileFCB(struct sigcontext_struct *context)
|
|
{
|
|
fprintf( stderr, "DeleteFileFCB: not implemented yet\n" );
|
|
#if 0
|
|
BYTE *fcb = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
|
|
struct dosdirent *dp;
|
|
char temp[256], *ptr;
|
|
int drive = DOS_GET_DRIVE( *fcb );
|
|
|
|
DumpFCB( fcb );
|
|
|
|
temp[0] = '\\';
|
|
strcpy(temp+1, DRIVE_GetDosCwd(drive));
|
|
strcat(temp, "\\");
|
|
strncat(temp, fcb + 1, 8);
|
|
ChopOffWhiteSpace(temp);
|
|
strncat(temp, fcb + 9, 3);
|
|
ChopOffWhiteSpace(temp);
|
|
|
|
if ((dp = DOS_opendir(temp)) == NULL) {
|
|
Error(InvalidDrive, EC_MediaError , EL_Disk);
|
|
AX_reg(context) = 0xff;
|
|
return;
|
|
}
|
|
|
|
temp[0] = '\\';
|
|
strcpy(temp+1, DRIVE_GetDosCwd(drive) );
|
|
strcat(temp, "\\");
|
|
|
|
ptr = temp + strlen(temp);
|
|
|
|
while (DOS_readdir(dp) != NULL)
|
|
{
|
|
strcpy(ptr, dp->filename);
|
|
dprintf_int(stddeb, "int21: delete file %s\n", temp);
|
|
/* unlink(DOS_GetUnixFileName(temp)); */
|
|
}
|
|
DOS_closedir(dp);
|
|
AX_reg(context) = 0;
|
|
#endif
|
|
}
|
|
|
|
static void RenameFileFCB(struct sigcontext_struct *context)
|
|
{
|
|
fprintf( stderr, "RenameFileFCB: not implemented yet\n" );
|
|
#if 0
|
|
BYTE *fcb = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
|
|
struct dosdirent *dp;
|
|
char temp[256], oldname[256], newname[256], *oldnameptr, *newnameptr;
|
|
int drive = DOS_GET_DRIVE( *fcb );
|
|
|
|
DumpFCB( fcb );
|
|
|
|
temp[0] = '\\';
|
|
strcpy(temp+1, DRIVE_GetDosCwd(drive) );
|
|
strcat(temp, "\\");
|
|
strncat(temp, fcb + 1, 8);
|
|
ChopOffWhiteSpace(temp);
|
|
strncat(temp, fcb + 9, 3);
|
|
ChopOffWhiteSpace(temp);
|
|
|
|
if ((dp = DOS_opendir(temp)) == NULL) {
|
|
Error(InvalidDrive, EC_MediaError , EL_Disk);
|
|
AX_reg(context) = 0xff;
|
|
return;
|
|
}
|
|
|
|
oldname[0] = '\\';
|
|
strcpy(oldname+1, DRIVE_GetDosCwd(drive) );
|
|
strcat(oldname, "\\");
|
|
strcpy( newname, oldname );
|
|
oldnameptr = oldname + strlen(oldname);
|
|
newnameptr = newname + strlen(newname);
|
|
|
|
while (DOS_readdir(dp) != NULL)
|
|
{
|
|
strcpy(oldnameptr, dp->filename);
|
|
strcpy(newnameptr, fcb + 1);
|
|
dprintf_int(stddeb, "int21: renamefile %s -> %s\n",
|
|
oldname, newname);
|
|
}
|
|
DOS_closedir(dp);
|
|
AX_reg(context) = 0;
|
|
#endif
|
|
}
|
|
|
|
|
|
|
|
static void fLock (struct sigcontext_struct * context)
|
|
{
|
|
#if 0
|
|
struct flock f;
|
|
int result,retries=sharing_retries;
|
|
|
|
f.l_start = MAKELONG(DX_reg(context),CX_reg(context));
|
|
f.l_len = MAKELONG(DI_reg(context),SI_reg(context));
|
|
f.l_whence = 0;
|
|
f.l_pid = 0;
|
|
|
|
switch ( AX_reg(context) & 0xff )
|
|
{
|
|
case 0x00: /* LOCK */
|
|
f.l_type = F_WRLCK;
|
|
break;
|
|
|
|
case 0x01: /* UNLOCK */
|
|
f.l_type = F_UNLCK;
|
|
break;
|
|
|
|
default:
|
|
AX_reg(context) = 0x0001;
|
|
SET_CFLAG(context);
|
|
return;
|
|
}
|
|
|
|
{
|
|
result = fcntl(BX_reg(context),F_SETLK,&f);
|
|
if ( retries && (!result) )
|
|
{
|
|
int i;
|
|
for(i=0;i<32768*((int)sharing_pause);i++)
|
|
result++; /* stop the optimizer */
|
|
for(i=0;i<32768*((int)sharing_pause);i++)
|
|
result--;
|
|
}
|
|
}
|
|
while( (!result) && (!(retries--)) );
|
|
|
|
if(result)
|
|
{
|
|
FILE_SetDosError();
|
|
AX_reg(context) = DOS_ExtendedError;
|
|
SET_CFLAG(context);
|
|
return;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
static int INT21_GetFileAttribute (struct sigcontext_struct * context)
|
|
{
|
|
const char *unixName;
|
|
|
|
unixName = DOSFS_GetUnixFileName( PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context)), TRUE );
|
|
if (!unixName) return 0;
|
|
if (!FILE_Stat( unixName, &CL_reg(context), NULL, NULL, NULL )) return 0;
|
|
CH_reg(context) = 0;
|
|
dprintf_int( stddeb, "INT21_GetFileAttributes(%s) = 0x%x\n",
|
|
unixName, CX_reg(context) );
|
|
return 1;
|
|
}
|
|
|
|
|
|
extern void LOCAL_PrintHeap (WORD ds);
|
|
|
|
/***********************************************************************
|
|
* DOS3Call (KERNEL.102)
|
|
*/
|
|
void DOS3Call( struct sigcontext_struct context )
|
|
{
|
|
dprintf_int( stddeb, "int21: AX=%04x BX=%04x CX=%04x DX=%04x "
|
|
"SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
|
|
AX_reg(&context), BX_reg(&context), CX_reg(&context),
|
|
DX_reg(&context), SI_reg(&context), DI_reg(&context),
|
|
DS_reg(&context), ES_reg(&context), EFL_reg(&context));
|
|
|
|
if (AH_reg(&context) == 0x59) /* Get extended error info */
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
BH_reg(&context) = DOS_ErrorClass;
|
|
BL_reg(&context) = DOS_ErrorAction;
|
|
CH_reg(&context) = DOS_ErrorLocus;
|
|
return;
|
|
}
|
|
|
|
DOS_ERROR( 0, 0, 0, 0 );
|
|
RESET_CFLAG(&context); /* Not sure if this is a good idea */
|
|
|
|
switch(AH_reg(&context))
|
|
{
|
|
case 0x00: /* TERMINATE PROGRAM */
|
|
TASK_KillCurrentTask( 0 );
|
|
break;
|
|
|
|
case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
|
|
case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
|
|
case 0x03: /* READ CHARACTER FROM STDAUX */
|
|
case 0x04: /* WRITE CHARACTER TO STDAUX */
|
|
case 0x05: /* WRITE CHARACTER TO PRINTER */
|
|
case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
|
|
case 0x07: /* DIRECT CHARACTER INPUT, WITHOUT ECHO */
|
|
case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
|
|
case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
|
|
case 0x0a: /* BUFFERED INPUT */
|
|
case 0x0b: /* GET STDIN STATUS */
|
|
case 0x0c: /* FLUSH BUFFER AND READ STANDARD INPUT */
|
|
case 0x0f: /* OPEN FILE USING FCB */
|
|
case 0x10: /* CLOSE FILE USING FCB */
|
|
case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
|
|
case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
|
|
case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
|
|
case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
|
|
case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
|
|
case 0x23: /* GET FILE SIZE FOR FCB */
|
|
case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
|
|
case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
|
|
case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
|
|
case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
|
|
case 0x29: /* PARSE FILENAME INTO FCB */
|
|
case 0x2e: /* SET VERIFY FLAG */
|
|
case 0x37: /* "SWITCHAR" - GET SWITCH CHARACTER
|
|
"SWITCHAR" - SET SWITCH CHARACTER
|
|
"AVAILDEV" - SPECIFY \DEV\ PREFIX USE */
|
|
case 0x54: /* GET VERIFY FLAG */
|
|
INT_BARF( &context, 0x21 );
|
|
break;
|
|
|
|
case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
|
|
case 0x1d:
|
|
case 0x1e:
|
|
case 0x20:
|
|
case 0x6b: /* NULL FUNCTION */
|
|
AL_reg(&context) = 0;
|
|
break;
|
|
|
|
case 0x5c: /* "FLOCK" - RECORD LOCKING */
|
|
fLock(&context);
|
|
break;
|
|
|
|
case 0x0d: /* DISK BUFFER FLUSH */
|
|
RESET_CFLAG(&context); /* dos 6+ only */
|
|
break;
|
|
|
|
case 0x0e: /* SELECT DEFAULT DRIVE */
|
|
DRIVE_SetCurrentDrive( DL_reg(&context) );
|
|
AL_reg(&context) = MAX_DOS_DRIVES;
|
|
break;
|
|
|
|
case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
|
|
if (!INT21_FindFirstFCB(&context))
|
|
{
|
|
AL_reg(&context) = 0xff;
|
|
break;
|
|
}
|
|
/* else fall through */
|
|
|
|
case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
|
|
AL_reg(&context) = INT21_FindNextFCB(&context) ? 0x00 : 0xff;
|
|
break;
|
|
|
|
case 0x13: /* DELETE FILE USING FCB */
|
|
DeleteFileFCB(&context);
|
|
break;
|
|
|
|
case 0x17: /* RENAME FILE USING FCB */
|
|
RenameFileFCB(&context);
|
|
break;
|
|
|
|
case 0x19: /* GET CURRENT DEFAULT DRIVE */
|
|
AL_reg(&context) = DRIVE_GetCurrentDrive();
|
|
break;
|
|
|
|
case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
|
|
{
|
|
TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
|
|
pTask->dta = PTR_SEG_OFF_TO_SEGPTR(DS_reg(&context),DX_reg(&context));
|
|
dprintf_int(stddeb, "int21: Set DTA: %08lx\n", pTask->dta);
|
|
}
|
|
break;
|
|
|
|
case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
|
|
DL_reg(&context) = 0;
|
|
if (!INT21_GetDriveAllocInfo(&context)) AX_reg(&context) = 0xffff;
|
|
break;
|
|
|
|
case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
|
|
if (!INT21_GetDriveAllocInfo(&context)) AX_reg(&context) = 0xffff;
|
|
break;
|
|
|
|
case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
|
|
GetDrivePB(&context, DRIVE_GetCurrentDrive());
|
|
break;
|
|
|
|
case 0x25: /* SET INTERRUPT VECTOR */
|
|
INT_SetHandler( AL_reg(&context),
|
|
PTR_SEG_OFF_TO_SEGPTR( DS_reg(&context), DX_reg(&context)));
|
|
break;
|
|
|
|
case 0x2a: /* GET SYSTEM DATE */
|
|
GetSystemDate(&context);
|
|
break;
|
|
|
|
case 0x2b: /* SET SYSTEM DATE */
|
|
fprintf( stdnimp, "SetSystemDate(%02d/%02d/%04d): not allowed\n",
|
|
DL_reg(&context), DH_reg(&context), CX_reg(&context) );
|
|
AL_reg(&context) = 0; /* Let's pretend we succeeded */
|
|
break;
|
|
|
|
case 0x2c: /* GET SYSTEM TIME */
|
|
INT21_GetSystemTime(&context);
|
|
break;
|
|
|
|
case 0x2d: /* SET SYSTEM TIME */
|
|
fprintf( stdnimp, "SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
|
|
CH_reg(&context), CL_reg(&context),
|
|
DH_reg(&context), DL_reg(&context) );
|
|
AL_reg(&context) = 0; /* Let's pretend we succeeded */
|
|
break;
|
|
|
|
case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
|
|
{
|
|
TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
|
|
ES_reg(&context) = SELECTOROF( pTask->dta );
|
|
BX_reg(&context) = OFFSETOF( pTask->dta );
|
|
}
|
|
break;
|
|
|
|
case 0x30: /* GET DOS VERSION */
|
|
AX_reg(&context) = DOSVERSION;
|
|
BX_reg(&context) = 0x0012; /* 0x123456 is Wine's serial # */
|
|
CX_reg(&context) = 0x3456;
|
|
break;
|
|
|
|
case 0x31: /* TERMINATE AND STAY RESIDENT */
|
|
INT_BARF( &context, 0x21 );
|
|
break;
|
|
|
|
case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
|
|
GetDrivePB(&context, DOS_GET_DRIVE( DL_reg(&context) ) );
|
|
break;
|
|
|
|
case 0x33: /* MULTIPLEXED */
|
|
switch (AL_reg(&context))
|
|
{
|
|
case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
|
|
DL_reg(&context) = 0;
|
|
break;
|
|
|
|
case 0x01: /* SET EXTENDED BREAK STATE */
|
|
break;
|
|
|
|
case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
|
|
DL_reg(&context) = 0;
|
|
break;
|
|
|
|
case 0x05: /* GET BOOT DRIVE */
|
|
DL_reg(&context) = 2;
|
|
/* c: is Wine's bootdrive */
|
|
break;
|
|
|
|
case 0x06: /* GET TRUE VERSION NUMBER */
|
|
BX_reg(&context) = DOSVERSION;
|
|
DX_reg(&context) = 0x00;
|
|
break;
|
|
|
|
default:
|
|
INT_BARF( &context, 0x21 );
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x34: /* GET ADDRESS OF INDOS FLAG */
|
|
ES_reg(&context) = DosHeapHandle;
|
|
BX_reg(&context) = (int)&heap->InDosFlag - (int)heap;
|
|
break;
|
|
|
|
case 0x35: /* GET INTERRUPT VECTOR */
|
|
{
|
|
SEGPTR addr = INT_GetHandler( AL_reg(&context) );
|
|
ES_reg(&context) = SELECTOROF(addr);
|
|
BX_reg(&context) = OFFSETOF(addr);
|
|
}
|
|
break;
|
|
|
|
case 0x36: /* GET FREE DISK SPACE */
|
|
if (!INT21_GetFreeDiskSpace(&context)) AX_reg(&context) = 0xffff;
|
|
break;
|
|
|
|
case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
|
|
AX_reg(&context) = 0x02; /* no country support available */
|
|
SET_CFLAG(&context);
|
|
break;
|
|
|
|
case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
|
|
if (!CreateDirectory32A( PTR_SEG_OFF_TO_LIN( DS_reg(&context),
|
|
DX_reg(&context) ), NULL))
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
|
|
if (!FILE_RemoveDir( PTR_SEG_OFF_TO_LIN( DS_reg(&context),
|
|
DX_reg(&context) )))
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
|
|
INT21_ChangeDir(&context);
|
|
break;
|
|
|
|
case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
|
|
AX_reg(&context) = _lcreat( PTR_SEG_OFF_TO_LIN( DS_reg(&context),
|
|
DX_reg(&context) ), CX_reg(&context) );
|
|
if (AX_reg(&context) == (WORD)HFILE_ERROR)
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
|
|
OpenExistingFile(&context);
|
|
break;
|
|
|
|
case 0x3e: /* "CLOSE" - CLOSE FILE */
|
|
if ((AX_reg(&context) = _lclose( BX_reg(&context) )) != 0)
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
|
|
{
|
|
LONG result = _hread( BX_reg(&context),
|
|
PTR_SEG_OFF_TO_SEGPTR( DS_reg(&context),
|
|
DX_reg(&context) ),
|
|
CX_reg(&context) );
|
|
if (result == -1)
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
else AX_reg(&context) = (WORD)result;
|
|
}
|
|
break;
|
|
|
|
case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
|
|
{
|
|
LONG result = _hwrite( BX_reg(&context),
|
|
PTR_SEG_OFF_TO_LIN( DS_reg(&context),
|
|
DX_reg(&context) ),
|
|
CX_reg(&context) );
|
|
if (result == -1)
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
else AX_reg(&context) = (WORD)result;
|
|
}
|
|
break;
|
|
|
|
case 0x41: /* "UNLINK" - DELETE FILE */
|
|
if (!FILE_Unlink( PTR_SEG_OFF_TO_LIN( DS_reg(&context),
|
|
DX_reg(&context) )))
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
|
|
{
|
|
LONG status = _llseek( BX_reg(&context),
|
|
MAKELONG(DX_reg(&context),CX_reg(&context)),
|
|
AL_reg(&context) );
|
|
if (status == HFILE_ERROR)
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
break;
|
|
}
|
|
AX_reg(&context) = LOWORD(status);
|
|
DX_reg(&context) = HIWORD(status);
|
|
}
|
|
break;
|
|
|
|
case 0x43: /* FILE ATTRIBUTES */
|
|
switch (AL_reg(&context))
|
|
{
|
|
case 0x00:
|
|
if (!INT21_GetFileAttribute(&context))
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
case 0x01:
|
|
RESET_CFLAG(&context);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x44: /* IOCTL */
|
|
switch (AL_reg(&context))
|
|
{
|
|
case 0x00:
|
|
ioctlGetDeviceInfo(&context);
|
|
break;
|
|
|
|
case 0x01:
|
|
break;
|
|
|
|
case 0x08: /* Check if drive is removable. */
|
|
switch(GetDriveType( DOS_GET_DRIVE( BL_reg(&context) )))
|
|
{
|
|
case DRIVE_CANNOTDETERMINE:
|
|
DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
|
|
AX_reg(&context) = ER_InvalidDrive;
|
|
SET_CFLAG(&context);
|
|
break;
|
|
case DRIVE_REMOVABLE:
|
|
AX_reg(&context) = 0; /* removable */
|
|
break;
|
|
default:
|
|
AX_reg(&context) = 1; /* not removable */
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
|
|
switch(GetDriveType( DOS_GET_DRIVE( BL_reg(&context) )))
|
|
{
|
|
case DRIVE_CANNOTDETERMINE:
|
|
DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
|
|
AX_reg(&context) = ER_InvalidDrive;
|
|
SET_CFLAG(&context);
|
|
break;
|
|
case DRIVE_REMOTE:
|
|
DX_reg(&context) = (1<<9) | (1<<12); /* remote */
|
|
break;
|
|
default:
|
|
DX_reg(&context) = 0; /* FIXME: use driver attr here */
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x0a: /* check if handle (BX) is remote */
|
|
/* returns DX, bit 15 set if remote, bit 14 set if date/time
|
|
* not set on close
|
|
*/
|
|
DX_reg(&context) = 0;
|
|
break;
|
|
|
|
case 0x0b: /* SET SHARING RETRY COUNT */
|
|
if (!CX_reg(&context))
|
|
{
|
|
AX_reg(&context) = 1;
|
|
SET_CFLAG(&context);
|
|
break;
|
|
}
|
|
sharing_pause = CX_reg(&context);
|
|
if (!DX_reg(&context))
|
|
sharing_retries = DX_reg(&context);
|
|
RESET_CFLAG(&context);
|
|
break;
|
|
|
|
case 0x0d:
|
|
ioctlGenericBlkDevReq(&context);
|
|
break;
|
|
|
|
case 0x0F: /* Set logical drive mapping */
|
|
/* FIXME: Not implemented at the moment, always returns error
|
|
*/
|
|
INT_BARF( &context, 0x21 );
|
|
AX_reg(&context) = 0x0001; /* invalid function */
|
|
SET_CFLAG(&context);
|
|
break;
|
|
|
|
default:
|
|
INT_BARF( &context, 0x21 );
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
|
|
if ((AX_reg(&context) = FILE_Dup(BX_reg(&context))) == (WORD)HFILE_ERROR)
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
|
|
if (FILE_Dup2( BX_reg(&context), CX_reg(&context) ) == HFILE_ERROR)
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
|
|
if (!INT21_GetCurrentDirectory(&context))
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
else AX_reg(&context) = 0x0100;
|
|
/* intlist: many Microsoft products for Windows rely on this */
|
|
break;
|
|
|
|
case 0x48: /* ALLOCATE MEMORY */
|
|
case 0x49: /* FREE MEMORY */
|
|
case 0x4a: /* RESIZE MEMORY BLOCK */
|
|
INT_BARF( &context, 0x21 );
|
|
break;
|
|
|
|
case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
|
|
AX_reg(&context) = WinExec( PTR_SEG_OFF_TO_LIN( DS_reg(&context),
|
|
DX_reg(&context) ),
|
|
SW_NORMAL );
|
|
if (AX_reg(&context) < 32) SET_CFLAG(&context);
|
|
break;
|
|
|
|
case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
|
|
TASK_KillCurrentTask( AL_reg(&context) );
|
|
break;
|
|
|
|
case 0x4d: /* GET RETURN CODE */
|
|
AX_reg(&context) = 0; /* normal exit */
|
|
break;
|
|
|
|
case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
|
|
if (!INT21_FindFirst(&context)) break;
|
|
/* fall through */
|
|
|
|
case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
|
|
if (!INT21_FindNext(&context))
|
|
{
|
|
DOS_ERROR( ER_NoMoreFiles, EC_MediaError, SA_Abort, EL_Disk );
|
|
AX_reg(&context) = ER_NoMoreFiles;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x51: /* GET PSP ADDRESS */
|
|
case 0x62: /* GET PSP ADDRESS */
|
|
/* FIXME: should we return the original DOS PSP upon */
|
|
/* Windows startup ? */
|
|
BX_reg(&context) = GetCurrentPDB();
|
|
break;
|
|
|
|
case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
|
|
ES_reg(&context) = 0x0;
|
|
BX_reg(&context) = 0x0;
|
|
INT_BARF( &context, 0x21 );
|
|
break;
|
|
|
|
case 0x56: /* "RENAME" - RENAME FILE */
|
|
if (!INT21_RenameFile(&context))
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x57: /* FILE DATE AND TIME */
|
|
switch (AL_reg(&context))
|
|
{
|
|
case 0x00: /* Get */
|
|
if (!FILE_GetDateTime( BX_reg(&context), &DX_reg(&context),
|
|
&CX_reg(&context), TRUE ))
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x01: /* Set */
|
|
if (!FILE_SetDateTime( BX_reg(&context), DX_reg(&context),
|
|
CX_reg(&context) ))
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
|
|
switch (AL_reg(&context))
|
|
{
|
|
case 0x00:
|
|
AX_reg(&context) = 1;
|
|
break;
|
|
case 0x02:
|
|
AX_reg(&context) = 0;
|
|
break;
|
|
case 0x01:
|
|
case 0x03:
|
|
break;
|
|
}
|
|
RESET_CFLAG(&context);
|
|
break;
|
|
|
|
case 0x5a: /* CREATE TEMPORARY FILE */
|
|
if (!INT21_CreateTempFile(&context))
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x5b: /* CREATE NEW FILE */
|
|
if ((AX_reg(&context) = _lcreat_uniq( PTR_SEG_OFF_TO_LIN(DS_reg(&context),DX_reg(&context)), 0 )) == (WORD)HFILE_ERROR)
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x5d: /* NETWORK */
|
|
case 0x5e:
|
|
/* network software not installed */
|
|
DOS_ERROR( ER_NoNetwork, EC_NotFound, SA_Abort, EL_Network );
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
break;
|
|
|
|
case 0x5f: /* NETWORK */
|
|
switch (AL_reg(&context))
|
|
{
|
|
case 0x07: /* ENABLE DRIVE */
|
|
if (!DRIVE_Enable( DL_reg(&context) ))
|
|
{
|
|
DOS_ERROR( ER_InvalidDrive, EC_MediaError, SA_Abort, EL_Disk );
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x08: /* DISABLE DRIVE */
|
|
if (!DRIVE_Disable( DL_reg(&context) ))
|
|
{
|
|
DOS_ERROR( ER_InvalidDrive, EC_MediaError, SA_Abort, EL_Disk );
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
/* network software not installed */
|
|
DOS_ERROR( ER_NoNetwork, EC_NotFound, SA_Abort, EL_Network );
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
|
|
{
|
|
const char *truename = DOSFS_GetDosTrueName( PTR_SEG_OFF_TO_LIN(DS_reg(&context),SI_reg(&context) ), FALSE );
|
|
if (!truename)
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
else
|
|
{
|
|
lstrcpyn32A( PTR_SEG_OFF_TO_LIN( ES_reg(&context),
|
|
DI_reg(&context) ),
|
|
truename, 128 );
|
|
AX_reg(&context) = 0;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 0x61: /* UNUSED */
|
|
case 0x63: /* UNUSED */
|
|
case 0x64: /* OS/2 DOS BOX */
|
|
case 0x65: /* GET EXTENDED COUNTRY INFORMATION */
|
|
INT_BARF( &context, 0x21 );
|
|
SET_CFLAG(&context);
|
|
break;
|
|
|
|
case 0x66: /* GLOBAL CODE PAGE TABLE */
|
|
switch (AL_reg(&context))
|
|
{
|
|
case 0x01:
|
|
DX_reg(&context) = BX_reg(&context) = CodePage;
|
|
RESET_CFLAG(&context);
|
|
break;
|
|
case 0x02:
|
|
CodePage = BX_reg(&context);
|
|
RESET_CFLAG(&context);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x67: /* SET HANDLE COUNT */
|
|
SetHandleCount( BX_reg(&context) );
|
|
if (DOS_ExtendedError)
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x68: /* "FFLUSH" - COMMIT FILE */
|
|
case 0x6a: /* COMMIT FILE */
|
|
if (!FlushFileBuffers( BX_reg(&context) ))
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
break;
|
|
|
|
case 0x69: /* DISK SERIAL NUMBER */
|
|
switch (AL_reg(&context))
|
|
{
|
|
case 0x00:
|
|
if (!INT21_GetDiskSerialNumber(&context))
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
else AX_reg(&context) = 0;
|
|
break;
|
|
case 0x01:
|
|
if (!INT21_SetDiskSerialNumber(&context))
|
|
{
|
|
AX_reg(&context) = DOS_ExtendedError;
|
|
SET_CFLAG(&context);
|
|
}
|
|
else AX_reg(&context) = 1;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x6C: /* Extended Open/Create*/
|
|
ExtendedOpenCreateFile(&context);
|
|
break;
|
|
|
|
case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
|
|
case 0x71: /* MS-DOS 7 (Chicago) - LONG FILENAME FUNCTIONS */
|
|
case 0x72: /* MS-DOS 7 (Windows95) - ??? */
|
|
case 0x73: /* MS-DOS 7 (Windows95) - DRIVE LOCKING ??? */
|
|
dprintf_int(stddeb,"int21: windows95 function AX %04x\n",
|
|
AX_reg(&context));
|
|
dprintf_int(stddeb, " returning unimplemented\n");
|
|
SET_CFLAG(&context);
|
|
AL_reg(&context) = 0;
|
|
break;
|
|
|
|
case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
|
|
case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
|
|
break;
|
|
|
|
default:
|
|
INT_BARF( &context, 0x21 );
|
|
break;
|
|
}
|
|
dprintf_int( stddeb, "ret21: AX=%04x BX=%04x CX=%04x DX=%04x "
|
|
"SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
|
|
AX_reg(&context), BX_reg(&context), CX_reg(&context),
|
|
DX_reg(&context), SI_reg(&context), DI_reg(&context),
|
|
DS_reg(&context), ES_reg(&context), EFL_reg(&context));
|
|
}
|
|
|
|
|
|
BOOL INT21_Init(void)
|
|
{
|
|
if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
|
|
{
|
|
fprintf( stderr, "INT21_Init: Out of memory\n");
|
|
return FALSE;
|
|
}
|
|
heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
|
|
|
|
dpb = &heap->dpb;
|
|
dpbsegptr = PTR_SEG_OFF_TO_SEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
|
|
heap->InDosFlag = 0;
|
|
strcpy(heap->biosdate, "01/01/80");
|
|
return TRUE;
|
|
}
|