Re: AW: New UFFI version (0.2.10) available

> http://uffi.med-info.com/manual/r1230.htm
> (def-function "gethostname" 
>   ((name :cstring)
>    (len :int))
>   :returning :int)
> 
> Could you please show how to use this function?

Sure, see the examples in examples/getenv.cl and examples/gethostname.cl.

> I believe one must allocate a garbage string so as to be able to call
> convert-from-cstring and with-cstring, as name is a pure :out parameter.

You are right -- the manual is in error. The gethostname.cl shows the
correct call. Your technique of using a cstring should work fine. The
example actually shows the use of allocate-foreign-string /
convert-from-foreign-string / free-foreign-object and passing a (*
:unsigned-char) for the name.

> (let ((unused-storage (make-string 64))) ; 64 on Linux, 256 on Solaris...
>   (with-cstring (name unused-storage)
>     (if (zerop (call-"gethostname" name 64))
>        (convert-from-cstring name))))

Thanks for the question and noting the error in the manual.

Kevin