GNU bug report logs - #469
pgg-gpg.el - pgg-gpg-process-region timing problem

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Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Thien-Thi Nguyen <ttn <at> gnuvola.org>
To: "ken manheimer" <ken.manheimer <at> gmail.com>
Cc: wilde <at> sha-bang.de, emacs-pretest-bug <at> gnu.org, ueno <at> unixuser.org,
        emacs-devel <emacs-devel <at> gnu.org>
Subject: Re: pgg-gpg.el - pgg-gpg-process-region timing problem
Date: Mon, 23 Jun 2008 10:43:05 +0200

ChangeLog entry:

	Use process sentinel to monitor gpg subprocess status.

	* pgg-gpg.el (pgg-gpg-process-region): Fix omission bug:
	Use process sentinel to update process status and exit-status.
	Reported by ken manheimer <ken.manheimer <at> gmail.com>.

patch:
*** pgg-gpg.el	6 May 2008 07:57:46 -0000	1.27
--- pgg-gpg.el	23 Jun 2008 08:40:50 -0000
***************
*** 70,111 ****
  	    ,@pgg-gpg-extra-args ,@args))
  	 (output-buffer pgg-output-buffer)
  	 (errors-buffer pgg-errors-buffer)
! 	 (orig-mode (default-file-modes))
! 	 (process-connection-type nil)
! 	 (inhibit-redisplay t)
! 	 process status exit-status
! 	 passphrase-with-newline
! 	 encoded-passphrase-with-new-line)
      (with-current-buffer (get-buffer-create errors-buffer)
        (buffer-disable-undo)
        (erase-buffer))
      (unwind-protect
! 	(progn
  	  (set-default-file-modes 448)
! 	  (let ((coding-system-for-write 'binary))
! 	    (setq process
! 		  (apply #'start-process "*GnuPG*" errors-buffer
! 			 program args)))
! 	  (set-process-sentinel process #'ignore)
  	  (when passphrase
! 	    (setq passphrase-with-newline (concat passphrase "\n"))
! 	    (if pgg-passphrase-coding-system
! 		(progn
! 		  (setq encoded-passphrase-with-new-line
  			(encode-coding-string
! 			 passphrase-with-newline
! 			 (coding-system-change-eol-conversion
! 			  pgg-passphrase-coding-system 'unix)))
! 		  (pgg-clear-string passphrase-with-newline))
! 	      (setq encoded-passphrase-with-new-line passphrase-with-newline
! 		    passphrase-with-newline nil))
! 	    (process-send-string process encoded-passphrase-with-new-line))
  	  (process-send-region process start end)
  	  (process-send-eof process)
! 	  (while (eq 'run (process-status process))
  	    (accept-process-output process 5))
- 	  (setq status (process-status process)
- 		exit-status (process-exit-status process))
  	  (delete-process process)
  	  (with-current-buffer (get-buffer-create output-buffer)
  	    (buffer-disable-undo)
--- 70,104 ----
  	    ,@pgg-gpg-extra-args ,@args))
  	 (output-buffer pgg-output-buffer)
  	 (errors-buffer pgg-errors-buffer)
! 	 (inhibit-redisplay t))
      (with-current-buffer (get-buffer-create errors-buffer)
        (buffer-disable-undo)
        (erase-buffer))
      (unwind-protect
! 	(let* ((coding-system-for-write 'binary)
! 	       (process (let ((orig (default-file-modes)))
  			  (set-default-file-modes 448)
! 			  (prog1 (apply #'start-process "*GnuPG*"
! 					errors-buffer program args)
! 			    (set-default-file-modes orig))))
! 	       (status (process-status process))
! 	       exit-status)
! 	  (set-process-sentinel
! 	   process (lambda (process reason)
! 		     (setq status (process-status process)
! 			   exit-status (process-exit-status process))))
  	  (when passphrase
! 	    (process-send-string
! 	     process (if pgg-passphrase-coding-system
  			 (encode-coding-string
! 			  passphrase
! 			  pgg-passphrase-coding-system)
! 		       passphrase))
! 	    (process-send-string process "\n"))
  	  (process-send-region process start end)
  	  (process-send-eof process)
! 	  (while (eq 'run status)
  	    (accept-process-output process 5))
  	  (delete-process process)
  	  (with-current-buffer (get-buffer-create output-buffer)
  	    (buffer-disable-undo)
***************
*** 120,134 ****
  		(error "%s exited abnormally: '%s'" program exit-status))
  	    (if (= 127 exit-status)
  		(error "%s could not be found" program))))
-       (if passphrase-with-newline
- 	  (pgg-clear-string passphrase-with-newline))
-       (if encoded-passphrase-with-new-line
- 	  (pgg-clear-string encoded-passphrase-with-new-line))
-       (if (and process (eq 'run (process-status process)))
- 	  (interrupt-process process))
        (if (file-exists-p output-file-name)
! 	  (delete-file output-file-name))
!       (set-default-file-modes orig-mode))))
  
  (defun pgg-gpg-possibly-cache-passphrase (passphrase &optional key notruncate)
    (if (and passphrase
--- 113,120 ----
  		(error "%s exited abnormally: '%s'" program exit-status))
  	    (if (= 127 exit-status)
  		(error "%s could not be found" program))))
        (if (file-exists-p output-file-name)
! 	  (delete-file output-file-name)))))
  
  (defun pgg-gpg-possibly-cache-passphrase (passphrase &optional key notruncate)
    (if (and passphrase

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