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/* ttylog - serial port logger
Copyright (C) 1999-2002 Tibor Koleszar
Copyright (C) 2008-2012 Robert James Clay
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <sys/stat.h>
#include <termios.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
#define VERSION "0.2.0"
#define BAUDN 9
char flush = 0;
char *BAUD_T[] =
{"300", "1200", "2400", "4800", "9600", "19200", "38400", "57600", "115200"};
int BAUD_B[] =
{B300, B1200, B2400, B4800, B9600, B19200, B38400, B57600, B115200};
int
main (int argc, char *argv[])
{
FILE *logfile;
fd_set rfds;
int retval, i, j, baud = -1;
int fd;
char line[1024], modem_device[512];
struct termios oldtio, newtio;
modem_device[0] = 0;
if (argc < 2)
{
printf ("%s: no params. try %s -h\n", argv[0], argv[0]);
exit (0);
}
for (i = 1; i < argc; i++)
{
if (!strcmp (argv[i], "-h") || !strcmp (argv[i], "--help"))
{
printf ("ttylog version %s. Programmed by Tibor Koleszar <oldw@debian.org>\n", VERSION);
printf ("Usage: \n -h, --help This help\n -v, --version Version number\n");
printf (" -b, --baud Baud rate\n -d, --device Serial device (eg. /dev/ttyS1)\n -f, --flush Flush output\n");
exit (0);
}
if (!strcmp (argv[i], "-v") || !strcmp (argv[i], "--version"))
{
printf ("ttylog version %s.\n", VERSION);
exit (0);
}
if (!strcmp (argv[i], "-f") || !strcmp (argv[i], "--flush"))
{
flush = 1;
}
if (!strcmp (argv[i], "-b") || !strcmp (argv[i], "--baud"))
{
if (argv[i + 1] != NULL)
{
for (j = 0; j < BAUDN; j++)
if (!strcmp (argv[i + 1], BAUD_T[j]))
baud = j;
}
if (baud == -1)
{
printf ("%s: invalid baud rate %s\n", argv[0], argv[i + 1]);
exit (0);
}
}
if (!strcmp (argv[i], "-d") || !strcmp (argv[i], "--device"))
{
if (argv[i + 1] != NULL)
{
strcpy (modem_device, argv[i + 1]);
}
else
{
}
}
}
if (!strlen(modem_device)) {
printf ("%s: no device is set. Use %s -h for more information.\n", argv[0], argv[0]);
exit (0);
}
logfile = fopen (modem_device, "rb");
if (logfile == NULL)
{
printf ("%s: invalid device %s\n", argv[0], modem_device);
exit (0);
}
fd = fileno (logfile);
tcgetattr (fd, &oldtio); /* save current serial port settings */
bzero (&newtio, sizeof (newtio)); /* clear struct for new port settings */
newtio.c_cflag = BAUD_B[baud] | CRTSCTS | CS8 | CLOCAL | CREAD;
newtio.c_iflag = IGNPAR | IGNCR;
newtio.c_oflag = 0;
newtio.c_lflag = ICANON;
tcflush (fd, TCIFLUSH);
tcsetattr (fd, TCSANOW, &newtio);
/* Clear the device */
FD_ZERO (&rfds);
FD_SET (fd, &rfds);
fgets (line, 1024, logfile);
while (1)
{
FD_ZERO (&rfds);
FD_SET (fd, &rfds);
retval = select (fd + 1, &rfds, NULL, NULL, NULL);
if (retval)
{
fgets (line, 1024, logfile);
printf ("%s\n", line);
if (flush) { fflush(stdout); }
}
}
fclose (logfile);
tcsetattr (fd, TCSANOW, &oldtio);
return 0;
}
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