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This commit is contained in:
Martin Lund
commit
a14d14d75b
19 changed files with 1604 additions and 0 deletions
344
src/options.c
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344
src/options.c
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/*
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* Go TTY - The Really Simple Terminal Application
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*
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* Copyright (c) 2014 Martin Lund
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <getopt.h>
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#include <termios.h>
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#include "config.h"
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#include "gotty/options.h"
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#include "gotty/print.h"
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struct option_t option =
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{
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"", /* Device name */
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false, /* No autoconnect */
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};
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void print_options_help(char *argv[])
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{
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printf("Usage: %s [<options>] <device>\n", argv[0]);
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printf("\n");
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printf("Options:\n");
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printf(" -b, --baudrate <baudrate> Baud rate (default: 115200)\n");
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printf(" -d, --databits 5|6|7|8 Data bits (default: 8)\n");
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printf(" -f, --flow hard|soft|none Flow control (default: none)\n");
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printf(" -s, --stopbits 1|2 Stop bits (default: 1)\n");
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printf(" -p, --parity even|odd|none Parity (default: none)\n");
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printf(" -n, --no-autoconnect Disable automatic connect\n");
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printf(" -v, --version Display version\n");
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printf(" -h, --help Display help\n");
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printf("\n");
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printf("In session, press ctrl-g + ctrl-q to quit.\n");
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printf("\n");
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}
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void parse_options(int argc, char *argv[])
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{
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int c;
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int baudrate;
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int databits;
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int stopbits;
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if (argc == 1)
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{
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print_options_help(argv);
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exit(0);
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}
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/* Set default termios settings:
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* (115200 baud, 8 data bits, no flow control, 1 stop bit, no parity) */
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bzero(&option.tio, sizeof(option.tio));
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option.tio.c_cflag = B115200 | CS8;
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while (1)
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{
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static struct option long_options[] =
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{
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{"baudrate", required_argument, 0, 'b'},
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{"databits", required_argument, 0, 'd'},
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{"flow", required_argument, 0, 'f'},
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{"stopbits", required_argument, 0, 's'},
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{"parity", required_argument, 0, 'p'},
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{"no-autoconnect", no_argument, 0, 'n'},
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{"version", no_argument, 0, 'v'},
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{"help", no_argument, 0, 'h'},
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{0, 0, 0, 0 }
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};
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/* getopt_long stores the option index here */
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int option_index = 0;
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/* Parse argument using getopt_long */
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c = getopt_long(argc, argv, "b:d:f:s:p:nvh", long_options, &option_index);
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/* Detect the end of the options */
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if (c == -1)
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break;
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switch (c)
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{
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case 0:
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/* If this option sets a flag, do nothing else now */
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if (long_options[option_index].flag != 0)
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break;
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printf("option %s", long_options[option_index].name);
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if (optarg)
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printf(" with arg %s", optarg);
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printf("\n");
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break;
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case 'b':
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baudrate = atoi(optarg);
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switch (baudrate)
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{
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case 0:
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baudrate = B0;
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break;
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case 50:
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baudrate = B50;
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break;
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case 75:
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baudrate = B75;
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break;
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case 110:
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baudrate = B110;
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break;
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case 134:
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baudrate = B134;
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break;
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case 150:
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baudrate = B150;
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break;
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case 300:
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baudrate = B300;
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break;
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case 600:
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baudrate = B600;
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break;
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case 1200:
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baudrate = B1200;
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break;
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case 2400:
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baudrate = B2400;
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break;
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case 4800:
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baudrate = B4800;
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break;
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case 9600:
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baudrate = B9600;
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break;
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case 19200:
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baudrate = B19200;
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break;
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case 38400:
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baudrate = B38400;
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break;
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case 57600:
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baudrate = B57600;
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break;
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case 115200:
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baudrate = B115200;
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break;
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case 230400:
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baudrate = B230400;
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break;
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case 460800:
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baudrate = B460800;
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break;
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case 500000:
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baudrate = B500000;
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break;
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case 576000:
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baudrate = B576000;
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break;
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case 921600:
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baudrate = B921600;
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break;
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case 1000000:
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baudrate = B1000000;
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break;
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case 1152000:
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baudrate = B1152000;
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break;
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case 1500000:
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baudrate = B1500000;
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break;
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case 2000000:
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baudrate = B2000000;
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break;
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case 2500000:
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baudrate = B2500000;
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break;
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case 3000000:
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baudrate = B3000000;
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break;
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case 3500000:
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baudrate = B3500000;
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break;
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case 4000000:
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baudrate = B4000000;
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break;
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default:
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printf("Error: Invalid baud rate.\n");
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exit(EXIT_FAILURE);
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}
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cfsetispeed(&option.tio, baudrate);
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cfsetospeed(&option.tio, baudrate);
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break;
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case 'd':
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databits = atoi(optarg);
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option.tio.c_cflag &= ~CSIZE;
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switch (databits)
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{
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case 5:
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option.tio.c_cflag |= CS5;
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break;
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case 6:
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option.tio.c_cflag |= CS6;
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break;
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case 7:
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option.tio.c_cflag |= CS7;
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break;
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case 8:
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option.tio.c_cflag |= CS8;
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break;
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default:
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printf("Error: Invalid data bits.\n");
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exit(EXIT_FAILURE);
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}
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break;
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case 'f':
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if (strcmp("hard", optarg) == 0)
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{
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option.tio.c_cflag |= CRTSCTS;
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option.tio.c_iflag &= ~(IXON | IXOFF | IXANY);
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}
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else if (strcmp("soft", optarg) == 0)
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{
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option.tio.c_cflag &= ~CRTSCTS;
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option.tio.c_iflag |= IXON | IXOFF;
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}
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else if (strcmp("none", optarg) == 0)
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{
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option.tio.c_cflag &= ~CRTSCTS;
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option.tio.c_iflag &= ~(IXON | IXOFF | IXANY);
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}
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else
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{
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printf("Error: Invalid flow control.\n");
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exit(EXIT_FAILURE);
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}
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break;
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case 's':
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stopbits = atoi(optarg);
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switch (stopbits)
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{
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case 1:
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option.tio.c_cflag &= ~CSTOPB;
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break;
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case 2:
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option.tio.c_cflag |= CSTOPB;
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break;
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default:
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printf("Error: Invalid stop bits.\n");
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exit(EXIT_FAILURE);
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}
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break;
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case 'p':
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if (strcmp("odd", optarg) == 0)
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{
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option.tio.c_cflag |= PARENB;
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option.tio.c_cflag |= PARODD;
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}
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else if (strcmp("even", optarg) == 0)
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{
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option.tio.c_cflag |= PARENB;
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option.tio.c_cflag &= ~PARODD;
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}
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else if (strcmp("none", optarg) == 0)
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option.tio.c_cflag &= ~PARENB;
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else
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{
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printf("Error: Invalid parity.\n");
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exit(EXIT_FAILURE);
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}
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break;
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case 'n':
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option.no_autoconnect = true;
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break;
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case 'v':
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printf("Go TTY v%s\n", VERSION);
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printf("Copyright (c) 2014 Martin Lund\n");
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printf("\n");
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printf("License GPLv2: GNU GPL version 2 or later <http://gnu.org/licenses/gpl-2.0.html>.\n");
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printf("This is free software: you are free to change and redistribute it.\n");
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printf("There is NO WARRANTY, to the extent permitted by law.\n");
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exit(0);
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break;
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case 'h':
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print_options_help(argv);
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exit(0);
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break;
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case '?':
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/* getopt_long already printed an error message */
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exit(1);
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break;
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default:
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exit(1);
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}
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}
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/* Assume first non-option is the tty device name */
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if (optind < argc)
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strcpy(option.device, argv[optind++]);
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if (strlen(option.device) == 0)
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{
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printf("Error: Missing device name.\n");
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exit(EXIT_FAILURE);
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}
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/* Print any remaining command line arguments (unknown options) */
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if (optind < argc)
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{
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printf("%s: unknown arguments: ", argv[0]);
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while (optind < argc)
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printf("%s ", argv[optind++]);
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printf("\n");
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exit(EXIT_FAILURE);
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}
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}
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