cli.c

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <string.h>
#include <err.h>


#include "cli.h"

int connectToBackEnd();

int main(int argc, char **argv)
{
	int cmdID = -1;
	char * command;
	int i , s, useSymlink = 0;

	command = argv[0];
	for(i = 0; i < MAX_COMMANDS; ++i) {
		if (strncmp(command, commandNames[i], strlen(commandNames[i])) == 0)
		{
			cmdID = i;
			useSymlink = 1;
		}	
	}

	if(cmdID == -1) {
		command = argv[1];
		for(i = 0; i < MAX_COMMANDS; ++i) {
			if (strncmp(command, commandNames[i], strlen(commandNames[i])) == 0)
			{
				cmdID = i;
			}	
		}
	}

	if(cmdID == -1){
		printf("Could not match input with a command. Please try again...\n");
		return -1;
	}

	printf("Parsed Command : %s\n", commandNames[cmdID]);

	if((s = connectToBackEnd()) == -1) {
		err(-1, "connectToBackEnd");
	}



	printf("connection to backend Successful\n");

	
	if(useSymlink) {
		//TODO Call correct command function pointer with (argv[1] ... argc[argc])
	}else {
		//TODO Call correct command function pointer with (argv[2] ... argv[argc])
	}

    close(s);

    return 0;
}

int connectToBackEnd() {
    int s, t, len;
    struct sockaddr_un remote;
    char str[100];

    if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
        perror("socket");
        exit(1);
    }

    printf("Trying to connect...\n");

    remote.sun_family = AF_UNIX;
    strcpy(remote.sun_path, SOCK_PATH);
    len = strlen(remote.sun_path) + sizeof(remote.sun_family);
    if (connect(s, (struct sockaddr *)&remote, sizeof(remote))  == -1) {
        perror("connect");
        exit(1);
    } else {
		printf("Connected.\n");
    	return s;
    }
}