YAIP/src/main.c

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

#include "database.h"
#include "proxy.h"
#include "config.h"

#define PACKAGE_NAME "WICTP"
#define DEFAULT_DATABASE "data.sqlite"
#define DEFAULT_CONFIG "config.json"
#define DEFAULT_PORT 8080

unsigned int validatePortNumber(unsigned int portNumber){
	// Given that we are dealing with unsined ints, we don't need to worry about
	// checking for values less than 0
	if ( portNumber > 65535 ){
		printf( "Port %i is invalid, using default of %i", portNumber, DEFAULT_PORT );
		return DEFAULT_PORT;
	}
	return portNumber;
}

void printHelp(){
        printf("Usage: %s [options]\n", PACKAGE_NAME);
        printf( "Options are:\n" );
        printf( "\t --database DATABASE   A sqlite3 database file (Defatult: %s)\n", DEFAULT_DATABASE );
        printf( "\t --config CONFIG       A config file (Default: %s)\n", DEFAULT_CONFIG );
        printf( "\t --port PORT           The listening port (Default: %i)\n", DEFAULT_PORT );
        printf( "\t --help                Display version information.\n");
}

int main(int argc, char**argv){
	char *database = DEFAULT_DATABASE;
	char *config = DEFAULT_CONFIG;
	unsigned int port = DEFAULT_PORT;
	
	Config *defaultconfig = configDefaults();


	for ( unsigned int i = 1; i < argc; i++ ){
		if ( strcmp( argv[i], "--database" ) == 0 ){
			if ( i + 1 < argc ){
				database = argv[++i];
			} else {
				printf("--database requires a positional argument\n");
			}
		} else if ( strcmp( argv[i], "--config" ) == 0 ){
			if ( i + 1 < argc ){
				config = argv[++i];
			} else {
				printf("--config requires a positional argument\n");
			}
		} else if ( strcmp( argv[i], "--port" ) == 0 ){
			if ( i + 1 < argc ){
				port = validatePortNumber( atoi(argv[++i]) );
			} else {
				printf("--port requires a positional argument\n");
			}
		} else if ( strcmp( argv[i], "--help" ) == 0 ){
			printHelp();
			return 0;
		} else {
			printf("Unknown option %s\n", argv[i]);
		}
	}

	if ( !db_file_exists(database) ){
		printf("Creating DB");
		db_create(database);
	}

	proxy_startListener(port);

	return 0;
}