mode.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

/*
 *  ReactOS mode console command
 *
 *  mode.c
 *
 *  Copyright (C) 2002  Robert Dickenson <[e-mail]>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <windows.h>
#include <string.h>
#include <stdio.h>
#include <tchar.h>

#define MAX_PORTNAME_LEN 20
#define MAX_COMPORT_NUM  10
#define MAX_COMPARAM_LEN 20

#define NUM_ELEMENTS(a) (sizeof(a)/sizeof(a[0]))
#define ASSERT(a)

const TCHAR* const usage_strings[] = {
    _T("Device Status:     MODE [device] [/STATUS]"),
    _T("Select code page:  MODE CON[:] CP SELECT=yyy"),
    _T("Code page status:  MODE CON[:] CP [/STATUS]"),
    _T("Display mode:      MODE CON[:] [COLS=c] [LINES=n]"),
    _T("Typematic rate:    MODE CON[:] [RATE=r DELAY=d]"),
    _T("Redirect printing: MODE LPTn[:]=COMm[:]"),
    _T("Serial port:       MODE COMm[:] [BAUD=b] [PARITY=p] [DATA=d] [STOP=s]\n") \
    _T("                            [to=on|off] [xon=on|off] [odsr=on|off]\n") \
    _T("                            [octs=on|off] [dtr=on|off|hs]\n") \
    _T("                            [rts=on|off|hs|tg] [idsr=on|off]"),
};

const TCHAR* const parity_strings[] = {
    _T("None"),   // default
    _T("Odd"),    // only symbol in this set to have a 'd' in it
    _T("Even"),   // ... 'v' in it
    _T("Mark"),   // ... 'm' in it
    _T("Space")   // ... 's' and/or a 'c' in it
};

const TCHAR* const control_strings[] = { _T("OFF"), _T("ON"), _T("HANDSHAKE"), _T("TOGGLE") };

const TCHAR* const stopbit_strings[] = { _T("1"), _T("1.5"), _T("2") };


int Usage()
{
	int i;

    _tprintf(_T("\nConfigures system devices.\n\n"));
    for (i = 0; i < NUM_ELEMENTS(usage_strings); i++) {
        _tprintf(_T("%s\n"), usage_strings[i]);
    }
    _tprintf(_T("\n"));
    return 0;
}

int QueryDevices()
{
    TCHAR buffer[10240];
    int len;
    TCHAR* ptr = buffer;

    *ptr = '\0';
    if (QueryDosDevice(NULL, buffer, NUM_ELEMENTS(buffer))) {
        while (*ptr != '\0') {
            len = _tcslen(ptr);
            if (_tcsstr(ptr, _T("COM"))) {
                _tprintf(_T("    Found serial device - %s\n"), ptr);
            } else if (_tcsstr(ptr, _T("PRN"))) {
                _tprintf(_T("    Found printer device - %s\n"), ptr);
            } else if (_tcsstr(ptr, _T("LPT"))) {
                _tprintf(_T("    Found parallel device - %s\n"), ptr);
            } else {
                _tprintf(_T("    Found other device - %s\n"), ptr);
            }
            ptr += (len+1);
        }
    } else {
        _tprintf(_T("    ERROR: QueryDosDevice(...) failed.\n"));
    }
    return 1;
}

int ShowParallelStatus(int nPortNum)
{
    TCHAR buffer[250];
    TCHAR szPortName[MAX_PORTNAME_LEN];

    _stprintf(szPortName, _T("LPT%d"), nPortNum);
    _tprintf(_T("\nStatus for device LPT%d:\n"), nPortNum);
    _tprintf(_T("-----------------------\n"));
    if (QueryDosDevice(szPortName, buffer, NUM_ELEMENTS(buffer))) {
        TCHAR* ptr = _tcsrchr(buffer, '\\');
        if (ptr != NULL) {
            if (0 == _tcscmp(szPortName, ++ptr)) {
                _tprintf(_T("    Printer output is not being rerouted.\n"));
            } else {
                _tprintf(_T("    Printer output is being rerouted to serial port %s\n"), ptr);
            }
            return 0;
        } else {
            _tprintf(_T("    QueryDosDevice(%s) returned unrecogised form %s.\n"), szPortName, buffer);
        }
    } else {
        _tprintf(_T("    ERROR: QueryDosDevice(%s) failed.\n"), szPortName);
    }
    return 1;
}

int ShowConsoleStatus()
{
    DWORD dwKbdDelay;
    DWORD dwKbdSpeed;
    CONSOLE_SCREEN_BUFFER_INFO ConsoleScreenBufferInfo;
    HANDLE hConsoleOutput = GetStdHandle(STD_OUTPUT_HANDLE);

    _tprintf(_T("\nStatus for device CON:\n"));
    _tprintf(_T("-----------------------\n"));
    if (GetConsoleScreenBufferInfo(hConsoleOutput, &ConsoleScreenBufferInfo)) {
        _tprintf(_T("    Lines:          %d\n"), ConsoleScreenBufferInfo.dwSize.Y);
        _tprintf(_T("    Columns:        %d\n"), ConsoleScreenBufferInfo.dwSize.X);
    }
    if (SystemParametersInfo(SPI_GETKEYBOARDDELAY, 0, &dwKbdDelay, 0)) {
        _tprintf(_T("    Keyboard delay: %ld\n"), dwKbdDelay);
    }
    if (SystemParametersInfo(SPI_GETKEYBOARDSPEED, 0, &dwKbdSpeed, 0)) {
        _tprintf(_T("    Keyboard rate:  %ld\n"), dwKbdSpeed);
    }
    _tprintf(_T("    Code page:      %d\n"), GetConsoleOutputCP());
    return 0;
}

static
BOOL SerialPortQuery(int nPortNum, LPDCB pDCB, LPCOMMTIMEOUTS pCommTimeouts, BOOL bWrite)
{
    BOOL result;
    HANDLE hPort;
    TCHAR szPortName[MAX_PORTNAME_LEN];

    ASSERT(pDCB);
    ASSERT(pCommTimeouts);

    _stprintf(szPortName, _T("COM%d"), nPortNum);
    hPort = CreateFile(szPortName,
                       GENERIC_READ|GENERIC_WRITE,
                       0,     // exclusive
                       NULL,  // sec attr
                       OPEN_EXISTING,
                       0,     // no attributes
                       NULL); // no template

    if (hPort == INVALID_HANDLE_VALUE) {
        _tprintf(_T("Illegal device name - %s\n"), szPortName);
        _tprintf(_T("Last error = 0x%lx\n"), GetLastError());
        return FALSE;
    }
    if (bWrite) {
        result = SetCommState(hPort, pDCB);
    } else {
        result = GetCommState(hPort, pDCB);
    }
    if (!result) {
        _tprintf(_T("Failed to %s the status for device COM%d:\n"), bWrite ? _T("set") : _T("get"), nPortNum);
        CloseHandle(hPort);
        return FALSE;
    }
    if (bWrite) {
        result = SetCommTimeouts(hPort, pCommTimeouts);
    } else {
        result = GetCommTimeouts(hPort, pCommTimeouts);
    }
    if (!result) {
        _tprintf(_T("Failed to %s Timeout status for device COM%d:\n"), bWrite ? _T("set") : _T("get"), nPortNum);
        CloseHandle(hPort);
        return FALSE;

    }
    CloseHandle(hPort);
    return TRUE;
}

int ShowSerialStatus(int nPortNum)
{
    DCB dcb;
    COMMTIMEOUTS CommTimeouts;

    if (!SerialPortQuery(nPortNum, &dcb, &CommTimeouts, FALSE)) {
        return 1;
    }
    if (dcb.Parity > NUM_ELEMENTS(parity_strings)) {
        _tprintf(_T("ERROR: Invalid value for Parity Bits %d:\n"), dcb.Parity);
        dcb.Parity = 0;
    }
    if (dcb.StopBits > NUM_ELEMENTS(stopbit_strings)) {
        _tprintf(_T("ERROR: Invalid value for Stop Bits %d:\n"), dcb.StopBits);
        dcb.StopBits = 0;
    }
    _tprintf(_T("\nStatus for device COM%d:\n"), nPortNum);
    _tprintf(_T("-----------------------\n"));
    _tprintf(_T("    Baud:            %ld\n"), dcb.BaudRate);
    _tprintf(_T("    Parity:          %s\n"), parity_strings[dcb.Parity]);
    _tprintf(_T("    Data Bits:       %d\n"), dcb.ByteSize);
    _tprintf(_T("    Stop Bits:       %s\n"), stopbit_strings[dcb.StopBits]);
    _tprintf(_T("    Timeout:         %s\n"), CommTimeouts.ReadIntervalTimeout ? _T("ON") : _T("OFF"));
    _tprintf(_T("    XON/XOFF:        %s\n"), dcb.fOutX ? _T("ON") : _T("OFF"));
    _tprintf(_T("    CTS handshaking: %s\n"), dcb.fOutxCtsFlow ? _T("ON") : _T("OFF"));
    _tprintf(_T("    DSR handshaking: %s\n"), dcb.fOutxDsrFlow ? _T("ON") : _T("OFF"));
    _tprintf(_T("    DSR sensitivity: %s\n"), dcb.fDsrSensitivity ? _T("ON") : _T("OFF"));
    _tprintf(_T("    DTR circuit:     %s\n"), control_strings[dcb.fDtrControl]);
    _tprintf(_T("    RTS circuit:     %s\n"), control_strings[dcb.fRtsControl]);
    return 0;
}

int SetParallelState(int nPortNum)