mirror of
https://github.com/eddyem/BTA_utils.git
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77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
/*
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* This file is part of the btaprinthdr project.
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* Copyright 2022 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 <limits.h>
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#include "cmdlnopts.h"
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/*
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* here are global parameters initialisation
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*/
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static int help;
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static glob_pars G;
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// DEFAULTS
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// default global parameters
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glob_pars const Gdefault = {
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.refresh = 0.5,
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.pidfile = "/tmp/bta_print_header.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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myoption cmdlnopts[] = {
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{"help", NO_ARGS, NULL, 'h', arg_none, APTR(&help), N_("show this help")},
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{"out", NEED_ARG, NULL, 'o', arg_string, APTR(&G.outfile), N_("output file name")},
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{"refresh", NEED_ARG, NULL, 'r', arg_double, APTR(&G.refresh), N_("refresh rate (0.1-30s; default: 0.5)")},
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{"pidfile", NEED_ARG, NULL, 'p', arg_string, APTR(&G.pidfile), N_("PID file name")},
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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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void *ptr;
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ptr = memcpy(&G, &Gdefault, sizeof(G)); assert(ptr);
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// parse arguments
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parseargs(&argc, &argv, cmdlnopts);
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if(help) showhelp(-1, cmdlnopts);
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if(argc > 0){
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G.outfile = strdup(argv[0]);
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if(argc > 1){
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WARNX("%d unused parameters:\n", argc - 1);
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for(int i = 1; i < argc; ++i)
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printf("\t%4d: %s\n", i, argv[i]);
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}
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}
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return &G;
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}
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