main (int Parm_Count, char *Parms[])
{
long BAUD, DATABITS, STOPBITS, PARITYON, PARITY;
char devicename[80];
char debug_flag[80];
int fd, tty, slipin, slipout, res, i, error;
int received = 0, port_num,tmp_pcount;
uint8_t c;
FILE *np;
int mode, val;
//place for old and new port settings for serial port
struct termios oldtio, newtio;
int start_flag;
got_connection = 0;
reply_mode = LAST_CONNECTION;
mode = ASCII;
BAUD = B115200;
DATABITS = CS8;
STOPBITS = 0;
//STOPBITS = CSTOPB;
PARITYON = 0;
PARITY = 0;
//PARITYON = PARENB;
//PARITY = PARODD;
if (Parm_Count < 3 || Parm_Count > 6)
print_usage ();
strcpy (buf, Parms[1]);
i = sscanf (buf, "%s", devicename);
if (i != 1)
print_usage ();
//open the device(com port) to be non-blocking (read will return immediately)
fd = open (devicename, O_RDWR | O_NOCTTY | O_NONBLOCK);
if (fd < 0) {
perror (devicename);
exit (-1);
}
strcpy (buf, Parms[2]);
i = sscanf (buf, "%d", &port_num);
if (i != 1)
print_usage ();
debug = 0;
tmp_pcount=3;
//if (Parm_Count > 3) {
while(tmp_pcount<Parm_Count)
{
strcpy (buf, Parms[tmp_pcount]);
i = sscanf (buf, "%s", debug_flag);
if (i != 1)
print_usage ();
if (strcmp (debug_flag, "-d") == 0)
debug = 1;
else if (strcmp (debug_flag, "-s") == 0)
debug = 2;
else if (strcmp (debug_flag, "-a") == 0)
{
reply_mode=STATIC_CLIENT;
tmp_pcount++;
if(tmp_pcount>=Parm_Count) print_usage();
strcpy (reply_address, Parms[tmp_pcount]);
}
else
print_usage ();
tmp_pcount++;
}
if(debug!=2) printf ("opened: %s\n", devicename);
tcgetattr (fd, &oldtio); // save current port settings
// set new port settings for canonical input processing
newtio.c_cflag =
BAUD | DATABITS | STOPBITS | PARITYON | PARITY | CLOCAL | CREAD;
newtio.c_iflag = IGNPAR;
newtio.c_oflag = 0;
newtio.c_lflag = 0; //ICANON;
newtio.c_cc[VMIN] = 1;
newtio.c_cc[VTIME] = 0;
tcflush (fd, TCIFLUSH);
tcsetattr (fd, TCSANOW, &newtio);
server_open (port_num);
start_flag = 0;
while (1) {
server_non_blocking_rx (fd);
res = read (fd, &c, 1);
if (res > 0) {
if (c == START)
mode = SLIP;
if (mode == ASCII)
if(debug!=2) printf ("%c", c);
if (mode == SLIP) {
slip_rx (fd);
mode = ASCII;
}
} else usleep(10000);
}
} //end of main
int main (int argc, char *argv[])
{
char devicename[80];
int fd, res;
uint8_t c;
struct termios oldtio, newtio;
int start_flag;
got_connection = 0;
mode_t mode = ascii;
long BAUD = B115200;
long DATABITS = CS8;
long STOPBITS = 0; // STOPBITS = CSTOPB;
long PARITYON = 0; // PARITYON = PARENB;
long PARITY = 0; // PARITY = PARODD;
unsigned int portNum = 4000;
sprintf(devicename, "/dev/ttyUSB0");
int opt;
while ((opt = getopt (argc, argv, "hdc:p:")) != -1) {
switch (opt) {
case 'h':
print_usage();
break;
case 'd':
debug = 1;
break;
case 'c':
strcpy(&devicename[0],optarg);
break;
case 'p':
portNum = atoi(optarg);
break;
case ':':
fprintf(stderr, "Option -%c requires an operand\n", optopt);
break;
case '?':
fprintf (stderr, "Unknown option `-%c'.\n", optopt);
return 1;
}
}
// open the device to be non-blocking (read will return immediately)
fd = open (devicename, O_RDWR | O_NOCTTY | O_NONBLOCK);
if (fd < 0) {
perror (devicename);
exit (-1);
}
if(debug) {
printf ("opened: %s\n", devicename);
}
// save current port setting
tcgetattr (fd, &oldtio);
// set new port settings for canonical input processing
newtio.c_cflag = BAUD | DATABITS | STOPBITS | PARITYON | PARITY | CLOCAL | CREAD;
newtio.c_iflag = IGNPAR;
newtio.c_oflag = 0;
newtio.c_lflag = 0; //ICANON;
newtio.c_cc[VMIN] = 1;
newtio.c_cc[VTIME] = 0;
tcflush (fd, TCIFLUSH);
tcsetattr (fd, TCSANOW, &newtio);
server_open(portNum);
start_flag = 0;
while (1) {
server_non_blocking_rx(fd);
res = read (fd, &c, 1);
if (res > 0) {
if (c == START) {
mode = slip;
}
if (mode == slip) {
slip_rx (fd);
mode = ascii;
}
if (mode == ascii) {
if(debug) printf ("%c", c);
}
} else {
usleep(10000);
}
}
}
