net.sockets/dns/conditions.lisp

   1 ;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Indent-tabs-mode: NIL -*-
   2 ;;;
   3 ;;; conditions.lisp --- Resolver conditions.
   4 ;;;
   5 ;;; Copyright (C) 2006-2008, Stelian Ionescu  <sionescu@common-lisp.net>
   6 ;;;
   7 ;;; This code is free software; you can redistribute it and/or
   8 ;;; modify it under the terms of the version 2.1 of
   9 ;;; the GNU Lesser General Public License as published by
  10 ;;; the Free Software Foundation, as clarified by the
  11 ;;; preamble found here:
  12 ;;;     http://opensource.franz.com/preamble.html
  13 ;;;
  14 ;;; This program is distributed in the hope that it will be useful,
  15 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;;; GNU General Public License for more details.
  18 ;;;
  19 ;;; You should have received a copy of the GNU Lesser General
  20 ;;; Public License along with this library; if not, write to the
  21 ;;; Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  22 ;;; Boston, MA 02110-1301, USA
  23
  24 (in-package :net.sockets)
  25
  26 (define-condition resolver-error ()
  27   ((data :initarg :data :reader resolver-error-data))
  28   (:documentation
  29    "Signaled when an error occurs while trying to resolve an address."))
  30
  31 (defmacro define-resolver-error (name format-string &optional documentation)
  32   `(define-condition ,name (resolver-error) ()
  33      (:report (lambda (condition stream)
  34                 (format stream ,format-string (resolver-error-data condition))))
  35      (:documentation ,documentation)))
  36
  37 (define-resolver-error resolver-again-error
  38   "Temporary failure occurred while resolving: ~S"
  39   "Condition signaled when a temporary failure occurred.")
  40
  41 (define-resolver-error resolver-fail-error
  42   "Non recoverable error occurred while resolving: ~S"
  43   "Condition signaled when a non-recoverable error occurred.")
  44
  45 (define-resolver-error resolver-no-name-error
  46   "Host or service not found: ~S"
  47   "Condition signaled when a host or service was not found.")
  48
  49 (define-resolver-error resolver-unknown-error
  50   "Unknown error while resolving: ~S"
  51   "Condition signaled when an unknown error is signaled while resolving
  52 an address.")