array and user input

[enlinux]

what i am trying to do here is ask user for an ip address to ping then an ending ip address. so if they want to test a c class all they have to do is run the program and type in starting ip then ending ip.

Next step will be saving result to a file. But that will come later.

Can someone tell me how to get this working. Arrays are kicking my you know what. I must have read 10 tutorials on arrays. I get the basics, but after that I am lost.

it compiles with some errors. it does ask for starting and ending ip address. put it will not ping. i remember to use the strcat for the ping. i wrote a program to ping just one ip and it works great. thanks for the help with that one.


code:
.

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

void main()

{

char startip[20];
char endip[20];
char pingtest[100] = "ping ";
int i;


printf("starting ip: ");
scanf("%s", &startip);

printf("ending ip: ");
scanf("%s", &endip);


for (i = &startip; i <= &endip; i++)

strcat(pingtest,i);
system(pingtest);

return 0;

}


.

[confuted]

Discussion of hacking or other illegal activities is not allowed on these boards, and it looks like you're trying to make a port scanner. (It would be smarter to download one anyway)

Anyway, incase you have a legit. reason for this, I would suggest using STL strings instead of char arrays.

[money?]

I don't think that it is a discussion of hacking, it's just a problem on how to get a string ( what's your reall question, enlinux? ).

>I must have read 10 tutorials on arrays
It's a bit hard for me to believe ( >scanf("%s", &startip); )

>for (i = &startip; i <= &endip; i++)
???What's that??????

Also, what do you mean by saying "ping"?

-> Give a better question, on something you already know (that means study better arrays, strings and blah blah.. and then ask ).