RFC 2957 (rfc2957) - Page 2 of 6

The application/whoispp-query Content-Type

RFC 2957         application/whoispp-query Content-Type     October 2000


   provides no native mechanisms for authentication.

   Published specification:  this document

   Person & email address to contact for further information:

                           Leslie L. Daigle
                           

   Intended usage:         common

2.  whoispp-query Syntax

   The following grammar, which uses BNF-like notation as defined in
   [RFC 2234] defines the set of acceptable input to a Whois++ server.
   As such, it describes the expected structure of a whoispp-query media
   type object.

   N.B.:  As outlined in the ABNF definition, rule names and string
   literals are in the US-ASCII character set, and are case-insensitive.

   whois-command   =   ( system-command / terms [":" globalcnstrnts] )
                       nl

   system-command  =   "constraints" / "describe" / "commands" /
                       "polled-by" / "polled-for" / "version" / "list" /
                       "show" [1*sp bytestring] / "help" [1*sp
                       bytestring] / "?" [bytestring]

   terms           =   and-expr *("or" and-expr)

   and-expr        =   not-expr *("and" not-expr)

   not-expr        =   ["not"] (term / ( "(" terms ")" ))

   term            =   ( generalterm / specificterm / combinedterm )
                       localcnstrnts

   generalterm     =   bytestring

   specificterm    =   specificname "=" bytestring

   specificname    =   "handle" / "value" / "template"

   combinedterm    =   attributename "=" bytestring

   globalcnstrnts  =   globalcnstrnt *(";" globalcnstrnt)




Daigle & Faltstrom           Informational