http://www.perlmonks.org?node_id=848014
murugaperumal has asked for the wisdom of the Perl Monks concerning the following question:

I have written the server program using the select to handle multiple clients. That is run successfully. I have written the client program also to connect the server. That also run successfully.

But if connect the client to the server using telnet it is connected successfully. But if I give the input length as 5 character including newline, in the server side it displayed the length as 6 character. Then if I print some value that value also replaced. I am not able to get the correct value.

How can I solve this problem. Why it is add more character to the given input. Why it is remove some character in the STDOUT.

20100707 Janitored by Corion: Added formatting, code tags, as per Writeup Formatting Tips

  • Comment on Problem while sending input to the serever using telnet

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Re: Problem while sending input to the serever using telnet
by cdarke (Prior) on Jul 05, 2010 at 07:42 UTC
    Is Microsoft Windows involved? Windows implementations will add a "\r" if you are sending text. This can be avoided by using binmode on the file handle.

    That is assuming you are using a filehandle. I have to guess here, because you don't show any code.
Re: Problem while sending input to the serever using telnet
by ikegami (Pope) on Jul 05, 2010 at 07:43 UTC

    [ Please don't use <pre>, especially not for your entire post. Use <p> at the start of every paragraph and wrap computer text (code, data, etc) in <c>...</c>. ]

    What 5 characters, 6 characters and 5 characters are those?