From 88438459f3df16a834c96135db140f58742b07c2 Mon Sep 17 00:00:00 2001
From: hmurata <hmurata>
Date: Sat, 18 Feb 2006 01:06:40 +0000
Subject: [PATCH] (smtp-debug): New user option. (smtp-read-response): Treat a
 line break code loosely.  If smtp-debug is non-nil, show an
 invalid response.

---
 ChangeLog |    6 ++++++
 smtp.el   |   46 +++++++++++++++++++++++++++++-----------------
 2 files changed, 35 insertions(+), 17 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 34cbe2e..4265f55 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2006-02-18  Hiroya Murata  <lapis-lazuli@pop06.odn.ne.jp>
+
+	* smtp.el (smtp-debug): New user option.
+	(smtp-read-response): Treat a line break code loosely.  If
+	smtp-debug is non-nil, show an invalid response.
+
 2005-12-25  Katsumi Yamaoka  <yamaoka@jpl.org>
 
 	* eword-decode.el: Change the way to decode successive
diff --git a/smtp.el b/smtp.el
index 0fcf274..2b54c64 100644
--- a/smtp.el
+++ b/smtp.el
@@ -148,6 +148,11 @@ For instance, the value \"Sending (%k)...\" shows like
 		(const :tag "Don't show progress message" nil))
   :group 'smtp)
 
+(defcustom smtp-debug nil
+  "*If non-nil, smtp debug info printout into messages."
+  :type 'boolean
+  :group 'smtp)
+
 (defvar sasl-mechanisms)
 
 ;;;###autoload
@@ -455,7 +460,7 @@ BUFFER may be a buffer or a buffer name which contains mail message."
 	  (let ((smtp-use-sasl nil)
 		(smtp-use-starttls-ignore-error t))
 	    (funcall smtp-submit-package-function package)))
-      (setq servers (cdr servers)))))
+	(setq servers (cdr servers)))))
 
 ;;; @ hook methods for `smtp-submit-package'
 ;;;
@@ -653,26 +658,33 @@ BUFFER may be a buffer or a buffer name which contains mail message."
 	response)
     (while response-continue
       (goto-char smtp-read-point)
-      (while (not (search-forward smtp-end-of-line nil t))
+      (while (not (re-search-forward "\r?\n" nil t))
 	(unless (smtp-connection-opened connection)
 	  (signal 'smtp-error "Connection closed"))
 	(accept-process-output (smtp-connection-process-internal connection))
 	(goto-char smtp-read-point))
-      (if decoder
-	  (let ((string (buffer-substring smtp-read-point (- (point) 2))))
-	    (delete-region smtp-read-point (point))
-	    (insert (funcall decoder string) smtp-end-of-line)))
-      (setq response
-	    (nconc response
-		   (list (buffer-substring
-			  (+ 4 smtp-read-point)
-			  (- (point) 2)))))
-      (goto-char
-       (prog1 smtp-read-point
-	 (setq smtp-read-point (point))))
-      (if (looking-at "[1-5][0-9][0-9] ")
-	  (setq response (cons (read (point-marker)) response)
-		response-continue nil)))
+      (let ((bol smtp-read-point)
+	    (eol (match-beginning 0))
+	    (reply-code nil))
+	(when decoder
+	  (let ((string (buffer-substring bol eol)))
+	    (delete-region bol (point))
+	    (insert (funcall decoder string))
+	    (setq eol (point))
+	    (insert smtp-end-of-line)))
+	(setq smtp-read-point (point))
+	(goto-char bol)
+	(if (not (looking-at "[1-5][0-9][0-9]\\([ -]\\)"))
+	    (when smtp-debug
+	      (message "Invalid response: %s" (buffer-substring bol eol)))
+	  (when (string= (match-string 1) " ")
+	    (setq reply-code (read (point-marker))))
+	  (setq response
+		(nconc response
+		       (list (buffer-substring (match-end 0) eol))))
+	  (when reply-code
+	    (setq response (cons reply-code response)
+		  response-continue nil)))))
     response))
 
 (defun smtp-send-command (connection command)
-- 
1.7.10.4