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From: Ed Schouten <ed@FreeBSD.org>
Date: Fri, 22 Aug 2008 21:27:37 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
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Subject: cvs commit: src/sys/kern tty.c
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ed          2008-08-22 21:27:37 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             tty.c 
  Log:
  SVN rev 182023 on 2008-08-22 21:27:37Z by ed
  
  Fix two small bugs in tcsetattr().
  
  - According to POSIX, tcsetattr() must not fail when any of the bits in
    the structure are unsupported, but it must leave the unsupported flags
    alone.
  
  - The CIGNORE flag (set by TCSASOFT, extension) was not cleared from
    c_cflag, which means using it would cause it to be applied during its
    entire lifespan. Eventually make sure we clear the flag.
  
  I don't really like CIGNORE, but I think we must keep it alive right
  now. With our new TTY layer, we don't actually need this mechanism,
  because if you leave c_cflag, c_ispeed and c_ospeed alone, we won't make
  a call into the device driver anyway.
  
  Reported by:    naddy
  Tested by:      naddy
  
  Revision  Changes    Path
  1.284     +6 -7      src/sys/kern/tty.c