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Merged revisions 76017 via svnmerge from

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svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r76017 | gregory.p.smith | 2009-11-01 10:42:17 -0800 (Sun, 01 Nov 2009) | 18 lines

  Merged revisions 76000,76016 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

  ........
    r76000 | gregory.p.smith | 2009-10-31 14:26:08 -0700 (Sat, 31 Oct 2009) | 7 lines

    Fixes issue7208 - getpass would still allow the password to be echoed on
    Solaris due to not flushing the input buffer.

    This change also incorporates some additional getpass implementation
    suggestions for security based on an analysis of getpass.c linked to from the
    issue.
  ........
    r76016 | gregory.p.smith | 2009-11-01 10:33:55 -0800 (Sun, 01 Nov 2009) | 2 lines

    news entry for r76000
  ........
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This commit is contained in:
Gregory P. Smith 2009-11-01 18:48:31 +00:00
parent 344ec44be1
commit fc1c75d93f
2 changed files with 14 additions and 3 deletions
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11
Lib/getpass.py
View file

@ -62,12 +62,16 @@ def unix_getpass(prompt='Password: ', stream=None):
try:
old = termios.tcgetattr(fd) # a copy to save
new = old[:]
new[3] &= ~termios.ECHO # 3 == 'lflags'
new[3] &= ~(termios.ECHO|termios.ISIG) # 3 == 'lflags'
tcsetattr_flags = termios.TCSAFLUSH
if hasattr(termios, 'TCSASOFT'):
tcsetattr_flags |= termios.TCSASOFT
try:
termios.tcsetattr(fd, termios.TCSADRAIN, new)
termios.tcsetattr(fd, tcsetattr_flags, new)
passwd = _raw_input(prompt, stream, input=input)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old)
termios.tcsetattr(fd, tcsetattr_flags, old)
stream.flush() # issue7208
except termios.error as e:
if passwd is not None:
# _raw_input succeeded. The final tcsetattr failed. Reraise
@ -124,6 +128,7 @@ def _raw_input(prompt="", stream=None, input=None):
if prompt:
stream.write(prompt)
stream.flush()
# NOTE: The Python C API calls flockfile() (and unlock) during readline.
line = input.readline()
if not line:
raise EOFError