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88 lines
3.1 KiB
C
88 lines
3.1 KiB
C
/*
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* This file is part of the weatherdaemon project.
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* Copyright 2021 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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*/
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#include <assert.h>
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#include <stdio.h>
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#include <string.h>
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#include <strings.h>
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#include <math.h>
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#include <usefull_macros.h>
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#include "cmdlnopts.h"
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#include "term.h"
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/*
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* here are global parameters initialisation
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*/
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int help;
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// default values for Gdefault & help
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#define DEFAULT_PORT "12345"
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#define DEFAULT_PID "/tmp/weatherdaemon.pid"
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// DEFAULTS
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// default global parameters
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static glob_pars G = {
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.device = NULL,
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.port = DEFAULT_PORT,
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.logfile = NULL,
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.verb = 0,
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.tty_speed = 9600,
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.emul = 0,
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.pidfile = DEFAULT_PID
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};
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/*
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* Define command line options by filling structure:
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* name has_arg flag val type argptr help
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*/
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sl_option_t cmdlnopts[] = {
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// common options
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{"help", NO_ARGS, NULL, 'h', arg_int, APTR(&help), _("show this help")},
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{"device", NEED_ARG, NULL, 'd', arg_string, APTR(&G.device), _("serial device name (default: none)")},
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{"port", NEED_ARG, NULL, 'p', arg_string, APTR(&G.port), _("network port to connect (default: " DEFAULT_PORT ")")},
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{"logfile", NEED_ARG, NULL, 'l', arg_string, APTR(&G.logfile), _("save logs to file (default: none)")},
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{"verb", NO_ARGS, NULL, 'v', arg_none, APTR(&G.verb), _("logfile verbocity level (each -v increase it)")},
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{"baudrate",NEED_ARG, NULL, 'b', arg_int, APTR(&G.tty_speed), _("serial terminal baudrate (default: 9600)")},
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{"emulation",NO_ARGS, NULL, 'e', arg_int, APTR(&G.emul), _("emulate serial device")},
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{"pidfile", NEED_ARG, NULL, 'P', arg_string, APTR(&G.pidfile), _("pidfile name (default: " DEFAULT_PID ")")},
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end_option
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};
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/**
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* Parse command line options and return dynamically allocated structure
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* to global parameters
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* @param argc - copy of argc from main
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* @param argv - copy of argv from main
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* @return allocated structure with global parameters
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*/
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glob_pars *parse_args(int argc, char **argv){
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int i;
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// format of help: "Usage: progname [args]\n"
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sl_helpstring("Usage: %s [args]\n\n\tWhere args are:\n");
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// parse arguments
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sl_parseargs(&argc, &argv, cmdlnopts);
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if(help) sl_showhelp(-1, cmdlnopts);
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if(argc > 0){
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red("Unused parameters:\n");
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for (i = 0; i < argc; i++)
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printf("%s\n", argv[i]);
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}
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return &G;
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}
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