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bug#17127: `call-process' circumvents password concealment w/ `read-pass

From: Nathan Trapuzzano
Subject: bug#17127: `call-process' circumvents password concealment w/ `read-passwd'
Date: Thu, 27 Mar 2014 22:39:41 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux)

Stefan Monnier <address@hidden> writes:

> This looks fairly contrived.  How did you stumble upon this problem?

Copy/pasting passwords from console password manager to emacs running on
terminal emulator in X.  The built-in copy/paste functionaly for the X
clipboard only works (AFAIK) with graphical emacs, so I use my own
commands to make it work on a terminal.  Here's the one that made me
catch it:

(defun paste-from-X-clipboard ()
  "Insert the X clipboard contents at point."
  (call-process "xclip" nil t nil "-selection" "clipboard" "-o"))

I use that to paste passwords when, e.g., finding remote files via

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