(setq dns-servers (nreverse dns-servers))))
(when (executable-find "nslookup")
(with-temp-buffer
- (call-process "nslookup" nil t nil "localhost")
+ (call-process "nslookup" nil t nil "-retry=0" "-timeout=2" "localhost")
(goto-char (point-min))
(when (re-search-forward
"^Address:[ \t]*\\([0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+\\|[[:xdigit:]:]*\\)" nil t)
(dns-get-txt-answer (dns-get 'answers result))
(dns-get 'data answer))))))))))
+;;;###autoload
(defun dns-query (name &optional type full reverse)
"Query a DNS server for NAME of TYPE.
If FULL, return the entire record returned.
If REVERSE, look up an IP address."
- (let ((result nil))
- (dns-query-asynchronous
- name
- (lambda (response)
- (setq result (list response)))
- type full reverse)
- ;; Loop until we get the callback.
- (while (not result)
- (sleep-for 0.01))
+ (let* ((result nil)
+ (query-started
+ (dns-query-asynchronous
+ name
+ (lambda (response)
+ (setq result (list response)))
+ type full reverse)))
+ (if query-started
+ ;; Loop until we get the callback.
+ (while (not result)
+ (sleep-for 0.01)))
(car result)))
(provide 'dns)