misc on the documentation, at functions, confstr

[Marco Maggi <marco dot maggi-ipsu at poste dot it>]

Ciao,

  in the  documentation of  glibc 2.27,  the description  of "confstr()"
says:

   Currently there is just one parameter you can read with @code{confstr}:

and then it lists more than  one parameter; the following parameters are
missing from the glibc documentation, but they are present in the manual
page of the same function:

   _CS_GNU_LIBC_VERSION
   _CS_GNU_LIBPTHREAD_VERSION

I see that these constants are used in the very source tree of glibc.

  The "at"  functions (openat,  linkat, unlinkat, ...)  are undocumented
despite being in the POSIX standard; is there a specific reason?

  What about the executable program  "getconf"?  Is it actually meant to
be fully undocumented?

  Is it fine to complain about the documentation? ;-)

TIA
-- 
Marco Maggi