arguments.c

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>

#include <arguments.h>

args_t arguments = {
	.ip_address = NULL,
	.port = 7,
	.protocol = PROTOCOL_ICMP,
	.payload_size = 32,
	.timeoutMS = 4000,
	.count = 4,
	.interval = 1
};

/**
 * parseArguments Parse command-line options and adjust arguments
 * @params <int>    argc : Number of arguments
 * @params <char**> argv : Lists of arguments
 * @flags MayNotReturn
 */
void parseArguments(int argc, char* argv[]){
	int error = 0;

	for(int i = 1; i < argc; i++){
		if(argv[i][0] == '-'){
			switch(argv[i][1]){
				case 'm':
				switch(argv[i][3]){
					case PROTOCOL_TCP:
					arguments.protocol = PROTOCOL_TCP;
					break;
			
					case PROTOCOL_UDP:
					arguments.protocol = PROTOCOL_UDP;
					break;
				}
				break;

				case 'p':
				arguments.port = atol(&argv[i][3]);
				break;

				case 's':
				arguments.payload_size = atol(&argv[i][3]);
				break;

				case 't':
				arguments.timeoutMS = atol(&argv[i][3]);
				break;

				case 'c':
				arguments.count = atol(&argv[i][3]);
				break;

				case 'i':
				arguments.interval = atol(&argv[i][3]);
				break;;

				case 'h':
				print_help();
				exit(EXIT_SUCCESS);
				break;

				default:
				printf("argument::unknown %s\n", argv[i]);
				error = 1;
			}
		} else {
			arguments.ip_address = argv[i];
		}

	}

	if(arguments.ip_address == NULL){
		printf("arguments::mandatory No IP address provided\n");
		print_help();
		exit(EXIT_FAILURE);
	}

	if(error){
		print_help();
		exit(EXIT_FAILURE);
	}
}