Simple Port scanner - Printable Version

Code:
#include <stdio.h>

#include <sys/socket.h> //socket header

#include <arpa/inet.h> 



int main(int argc, char **argv)

{

    struct sockaddr_in sock; 

    int fsock, portAW, portAK;

    

    if(argc != 4){

        printf("Usage : <Ip Address> <Port Awal> <Batas Port> \n");

        return 0;

    }



    //convert argv to int

    portAW = atoi(argv[2]);

    portAK = atoi(argv[3]);



    printf("[+]Ip Address : %s\n",argv[1]);        

    while(portAW != portAK)

    {    

        //create socket

        fsock=socket(AF_INET, SOCK_STREAM, 0);



        //struct di lib <arpa/inet.h>

        sock.sin_family =AF_INET;

        sock.sin_addr.s_addr = inet_addr(argv[1]);    

        sock.sin_port = htons(portAW);

        

        if(connect(fsock, (struct sockaddr *)&sock, sizeof(sock)) >= 0)

            printf("[+]Port Kebuka: %d\n",portAW);            



    portAW++;    

    }



    return 0;

}