Comparing a List Against One Value

Question

1.00/5 (2 votes)

See more:

I am getting a list of IP associated with the current URL. I want to compare this list to a single IP address. I can compare one IP to another. However; how does one compare a list of IP's against one IP? Thank you.

C++

if (Newlength > 0) 
  { 
  sHost.resize(Newlength); 
  WideCharToMultiByte (CP_ACP, WC_COMPOSITECHECK, wsHost.c_str(), wsHost.length(), &sHost[0], Newlength, NULL, NULL);
  } 
  HOSTENT *pHostEnt2 = gethostbyname(sHost.c_str()); 
  if (!pHostEnt2) 
	{ 
	printf("\n   Unknown Website IP"); 
	} 
	else 
	{ 
	for 
	(char **addr = pHostEnt2->h_addr_list; *addr != NULL; ++addr) 
        { 
	printf("\n   Website IP: %s  \n", inet_ntoa(* (struct in_addr *) *addr)); 
	} 
	} 
	}

Posted 10-Nov-11 14:35pm

Member 7766180

Add a Solution

Comments

Sergey Alexandrovich Kryukov 10-Nov-11 21:52pm

How much longer? You asked so many questions and should understand by now that you always need to explain where is your problem. Also, why not formatting the code so it would look clearly structured?
--SA

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Chuck O'Toole · Answer 1 · 2011-11-10T16:31:00

As SA said, you really haven't shown a "problem". The code you posted only shows printing out some stuff, not comparing or what you want to compare to.

Hey, I have an idea. If you already have a loop to print out all the addresses, why not try a loop to compare each to what you are looking for instead of printing them.

There is no "compare this to a list of things" command or function, you have to write this yourself.

Or, you could research (using Google) some "Find" or "Lookup" functions available out there on the net. Of course, you'd have to arrange your list the way any function you identify would want it.

We'd really love to help but if you won't give clear problem statement or post relevant code to the problem you stated or give evidence that you either tried something yourself or researched it yourself, you're not likely to get any help.

I wouldn't be so strident in this message if it wasn't the 20th or 30th time you've done this.