Make error messages more useful: add a URI

[Roland Mainz]

----- Original Message -----
> From: "Nico Williams" <nico at cryptonector.com>
> To: "Greg Hudson" <ghudson at mit.edu>
> Cc: krbdev at mit.edu
> Sent: Thursday, October 2, 2014 11:15:08 PM
> Subject: Re: Make error messages more useful: add a URI
> 
> 
> Roland suggests:
> 
> [libdefaults]
> 
>     err_fmt = %E. Please see https://whatever.example/%N
> 
> where %E is whatever the error string would have been and %N is the
> error code number (or symbolic name for it).
> 
> The default would be %E.
> 
> Additional contextual information could be provided with other tokens.
> 
> This would allow sites to use URIs or some other non-URI string if they
> prefer.

BTW: Three nits:
1. Some error messages carry additional information, like an errno message. How can we integrate this ?
2. How can we carry over the value of LC_MESSAGES (or better: The result of LANG/LC_MESSAGES/LC_ALL, e.g. $ printf '%s\n' "${LC_ALL:-${LC_MESSAGES:-${LANG:-"C"}}}" # in a POSIX shell) ?
3. What about intranets with no connection to the outside "world" ?

----

Bye,
Roland

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