topic Re: HP-UX 11.11 Talking to telnet from a C Program in Operating System - Linux

HP-UX 11.11 Talking to telnet from a C Program

David Johns — Wed, 15 Feb 2006 12:23:22 GMT

Hello:

We are trying to talk to telnet from a C program without much luck. Does anyone have any tips on why it isn't working? Simply opening a socket on the telnet port and writing works, but the read hangs. This is during the authentication process. On machines without authentication the program works nicely.

Thanks,
-Dave

P.S. Help!

Re: HP-UX 11.11 Talking to telnet from a C Program

paolo barila — Wed, 15 Feb 2006 12:33:56 GMT

strange thing,
telnet is interactive,
I don't get your point.
If you wanna copy files you should go
with ftp or better scp...
try to explain better please

Re: HP-UX 11.11 Talking to telnet from a C Program

Michael Goltsman — Thu, 16 Feb 2006 01:59:07 GMT

Have you tried Perl instead of C? Perl has the NET::Telnet module for interaction with telnet service.

You can find modules for SSH too.

Re: HP-UX 11.11 Talking to telnet from a C Program

Muthukumar_5 — Thu, 16 Feb 2006 02:49:57 GMT

what you are trying to use with c program to telnet? It is better use perl modules of NET::Telnet always for automation or any testing purpose.

--
Muthu

Re: HP-UX 11.11 Talking to telnet from a C Program

Muthukumar_5 — Thu, 16 Feb 2006 02:50:43 GMT

Use this perl module.

http://search.cpan.org/~jrogers/Net-Telnet-3.03/lib/Net/Telnet.pm

--
Muthu

Re: HP-UX 11.11 Talking to telnet from a C Program

Arunvijai_4 — Thu, 16 Feb 2006 03:01:14 GMT

Hi Dave,

Try running the program under tusc utility and see where it hangs (on what system call). It could be some read/write buffer issues.

-Arun