Forum OpenACS Development: Re: NaviServer on Windows: [ns_info address] returns IP v6 address

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5: Re: NaviServer on Windows: [ns_info address] returns IP v6 address (response to 4)
Posted by Frank Bergmann on 04/11/17 07:18 PM
Gustaf,

Nice argument, but sorry, the behavior of ns_info address is
a) incorrect according to the man page,
b) incorrect according to the last AOLserver and
c) incorrect for our use-case.

We can't get much closer to the definition of a bug. And we don't have a single customer who'd enter a IPv6 IP-Address manually in a browser.

I've had to invest another 3 hours to create a robust and multi-platform parser for ifconfig and ipconfig, because I can't wait for you to finish this stuff.

About fixing this command: Let the man page guide you: "Primary IP address of this machine" is a pretty intuitive concept that works in 95% or all cases. Otherwise you've got a pretty useless command in your API...

Cheers,
Frank

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6: Re: NaviServer on Windows: [ns_info address] returns IP v6 address (response to 5)
Posted by Gustaf Neumann on 04/11/17 07:50 PM
Compile the server without IPv6 support and the "bug" is corrected.
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7: Re: NaviServer on Windows: [ns_info address] returns IP v6 address (response to 6)
Posted by Frank Bergmann on 04/11/17 08:51 PM
This would still not fix the issue on Linux, where [ns_info address] returns 127.0.0.1.
Why don't you revert to the code in AOLserver?

Cheers,
Frank

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8: Re: NaviServer on Windows: [ns_info address] returns IP v6 address (response to 7)
Posted by Gustaf Neumann on 04/11/17 09:15 PM
please explain, why you believe the result is incorrect for your Linux box. You mentioned that the hostname of your Linux box is "project-open-v50-dev" and ping project-open-v50-dev pings to 127.0.0.1. So, the result is perfectly correct.
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9: Re: NaviServer on Windows: [ns_info address] returns IP v6 address (response to 8)
Posted by Frank Bergmann on 04/11/17 09:44 PM
Hi!

I got the "bug" - my bug. I assumed that ns_info address on AOLserver 4.5.1 Linux as intuitively required. But it doesn't. I've just installed AOLserver 4.5.1 and checked.

So both system implement ns_info address in the same way, and reverting wouldn't fix my issue.

Conclusion: You could change the implementation in NaviServer in order to prefer the IPv4 address over the IPv6 address. But otherwise everything is like it was.

=> We'll work with our own implementation of extracting the IP from ifconfig/ipconfig tool output.

Cheers!
Frank

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10: Re: NaviServer on Windows: [ns_info address] returns IP v6 address (response to 9)
Posted by Gustaf Neumann on 04/17/17 03:42 PM
The easiest way to find all IP-addresses of the the actual hostname is probably:
ns_addrbyhost -all [ns_info hostname]