teraterm/ttpcmn/ttcmn_cominfo.c

/*
 * Copyright (C) 2021- TeraTerm Project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <windows.h>

#include "codeconv.h"
#include "comportinfo.h"

#define DllExport __declspec(dllexport)
#include "ttcmn_cominfo.h"

/**
 *      COM�|�[�g������
 *
 *      @param[out]     ComPortTable[MAXCOMPORT]
 *      @param[in]      ComPortMax              �e�[�u���������g�p��(����MAXCOMPORT)
 *      @param[out]     ComPortDesc[MAXCOMPORT] (4096 in tttypes.h)
 *      @retval �g�p���\��COM�|�[�g�� (0=�g�p���\�|�[�g������)
 *
 *              MAXCOMPORT = 4096 in tttypes.h
 *              �����l���e�[�u��(COM�|�[�g������)�����������\��
 *
 *              ����
 *                      ComPortDesc���P�A�����������������[�N����
 */
int WINAPI DetectComPorts(LPWORD ComPortTable, int ComPortMax, char **ComPortDesc)
{
        int count;
        int i;
        ComPortInfo_t *port_info;
        const ComPortInfo_t *p;

        // ���O�m�����������J������
        for (i = 0; i < ComPortMax; i++) {
                free(ComPortDesc[i]);
                ComPortDesc[i] = NULL;
        }

        port_info = ComPortInfoGet(&count);
        p = port_info;
        for (i = 0; i < count; i++) {
                ComPortTable[i] = p->port_no;
                ComPortDesc[i] = ToCharW(p->friendly_name);
                p++;
                if (i == ComPortMax - 1) {
                        // �e�[�u������������
                        break;
                }
        }

        ComPortInfoFree(port_info, count);

        return count;
}

/**
 *      COM�|�[�g���������������������`�F�b�N����
 *
 *      @param[in]      ComPort         �`�F�b�N�����|�[�g����
 *      @retval -1      error(�������g�p������������)
 *      @retval 0       NOT FOUND;
 *      @retval 1       FOUND
 */
int WINAPI CheckComPort(WORD ComPort)
{
        int count;
        int i;
        ComPortInfo_t *port_info = ComPortInfoGet(&count);
        const ComPortInfo_t *p = port_info;
        int found = 0;
        for (i = 0; i < count; i++) {
                if (ComPort == p->port_no) {
                        found = 1;
                        break;
                }
                p++;
        }

        ComPortInfoFree(port_info, count);

        return found;
}