Rs232::Rs232(char *portname, int mode, char *bound) {
    int _bound;
    char *bound_start;

    if ((port1 = open(portname, mode | O_NOCTTY | O_NONBLOCK)) == - 1 ) {
#ifdef RS232_CONSOLE
	perror("Ошибка открытия порта")
#endif
	;
    }
    else {
        _bound=B19200;
	if (bound) {
	    if (bound[ 0 ]=='B') bound_start=bound+ 1 ;
	    else bound_start=bound;
	    if (!strcmp(bound_start, "0")) _bound=B0;
	    if (!strcmp(bound_start, "50")) _bound=B50;
	    if (!strcmp(bound_start, "75")) _bound=B75;
	    if (!strcmp(bound_start, "110")) _bound=B110;
	    if (!strcmp(bound_start, "134")) _bound=B134;
	    if (!strcmp(bound_start, "150")) _bound=B150;
	    if (!strcmp(bound_start, "200")) _bound=B200;
	    if (!strcmp(bound_start, "300")) _bound=B300;
	    if (!strcmp(bound_start, "600")) _bound=B600;
	    if (!strcmp(bound_start, "1200")) _bound=B1200;
	    if (!strcmp(bound_start, "1800")) _bound=B1800;
	    if (!strcmp(bound_start, "2400")) _bound=B2400;
	    if (!strcmp(bound_start, "4800")) _bound=B4800;
	    if (!strcmp(bound_start, "9600")) _bound=B9600;
	    if (!strcmp(bound_start, "19200")) _bound=B19200;
	    if (!strcmp(bound_start, "38400")) _bound=B38400;
	    if (!strcmp(bound_start, "57600")) _bound=B57600;
	    if (!strcmp(bound_start, "115200")) _bound=B115200;
	    if (!strcmp(bound_start, "230400")) _bound=B230400;
	}
    
	struct termios oldtio, newtio;

            tcgetattr(port1, &oldtio);
	newtio.c_cflag=_bound | CRTSCTS | CS8 | CLOCAL | CREAD;
	newtio.c_iflag=IGNPAR;
	newtio.c_oflag= 0 ;
	newtio.c_lflag= 0 ;//ICANON;
	newtio.c_cc[VMIN]= 0 ;
	newtio.c_cc[VTIME]= 1 ;
	tcflush(port1, TCIFLUSH);
	tcsetattr(port1, TCSANOW, &newtio);
    }
}

bool Rs232::ready() {
    if (port1==- 1 ) return false;
	      else return true;
}

int Rs232::readb(unsigned char *b, int n) {
    return read(port1, b, n);
}

int Rs232::writeb(unsigned char *b, int n) {
    return write(port1, b, n);
}

#include <stdio.h>

Rs232::~Rs232() {
FILE *f=fopen("a111", "w");
fclose(f);

    if (port1 != - 1 ) {
f=fopen("a222", "w");
fclose(f);
	close(port1);
f=fopen("a333", "w");
fclose(f);
    }
f=fopen("a444", "w");
fclose(f);
}