[Bug 1225327] Re: sftp in 12.04 has tty attributes setting problem

[wzis]

Based on Dtucker's debugging and tests, it seems to me when libedit is used, openssh is unable to control the tty settings based on its own needs, so with that in mind, and also the fact sftp on other UNIX or RHEL 5.x has no such problem and no other critical issue caused by not using libedit, the openssh should be packaged without using libedit.
Wondering why in the first place, the libedit is included in the configure.

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https://bugs.launchpad.net/bugs/1225327

Title:
  sftp in 12.04 has tty attributes setting problem

Status in Portable OpenSSH:
  Confirmed
Status in “libedit” package in Ubuntu:
  New
Status in “openssh” package in Ubuntu Linaro Evaluation Build:
  New

Bug description:
  In Ubuntu 12.04 LTS, when doing following:
  1. stty -echo
  2. sftp user at server
  3. key in pass as required.
  4. cd /tmp
  5. bye
  6. stty -a

  By right, the contents entered in step 4-6 shouldn't be visible, but they do on 12.04.
  Found the same issue on RHEL 6.x. But sftp on Solaris/AIX/HP-UX and RHEL 5.x do not have this issue.

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