Re: [MacPerl] How to get the TCP/IP host name

[Milivoj Ivkovic <mi@alma.ch>]

>>gethostbyname('localhost'); # OK on Win32, not Linux
>
>Works on a Mac, at least in part, assuming you know what to expect from the
>return value.  In a scalar context, returns the IP address as a packed 4
>character string.

Used it in array context on Win32, and it gives the full host name in first element. What does it give in array context on a Mac? (On Linux, it just stupidly gives 'localhost.localdomain')

>I thought this might be used with gethostbyaddr to get the host name as
>well, but I was unable to get that to work in under 5 minutes.

As I understand it, this uses reverse lookup, which is not always configured. So I wouldn't expect it to be reliable.

>>`hostname` # OK on Linux, not Win32
>
>Works in a Mac.
>

Really? Sounds great. On any Mac (with Perl)? Or just on some Macs which have installed some additional Unix tools or such?

>>$ENV{'HOSTNAME'} # OK on Linux, not Win32
>
>Doesn't work on a Mac in the sense of giving you the hostname, but that's
>sort of expected.  It is my understanding that this is not guaranteed to
>work on a *nix system either.

Yes, I was considering this as a last resort only, once everything else has failed.

Thank you for your help.

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