Weird behavior of crypt

[Alexandre Garnier <zigarn@gmail.com>]

Hello.
I'm trying to do SHA-512 password encryption, but the result is really
weird on Cygwin:

# On Cygwin(either 32 or 64) 2.4.1-1, latest updates with crypt 1.1-1,
libcrypt0 1.1-1, libcrypt-devel 1.1-1
$ crypt '$6$7dl4B0fKUimdnR$' test_value
$6wOs/zKP2jDM

$ python -c 'import crypt; print crypt.crypt("test_value",
"$6$7dl4B0fKUimdnR$")' # Python 2.7.10
$6wOs/zKP2jDM

$ perl -e 'print crypt("test_value", "\$6\$7dl4B0fKUimdnR\$")."\n"' #
Perl v5.22.1
$6wOs/zKP2jDM

Am I missing something?

On other system, I get a more expected result:

# On Ubuntu 15.04
$ mkpasswd --method=SHA-512 test_value 7dl4B0fKUimdnR
$6$7dl4B0fKUimdnR$f6gCu.3IfrxhsnJKFnusDH.UudC.lLOSB1G3D1bIboWxlixzBy2xO/3rCKHmzfwekCTvmQd11bPdcsJOaLkCJ.

$ python -c 'import crypt; print crypt.crypt("test_value",
"$6$7dl4B0fKUimdnR$")' # Python 2.7.10
$6$7dl4B0fKUimdnR$f6gCu.3IfrxhsnJKFnusDH.UudC.lLOSB1G3D1bIboWxlixzBy2xO/3rCKHmzfwekCTvmQd11bPdcsJOaLkCJ.

$ perl -e 'print crypt("test_value", "\$6\$7dl4B0fKUimdnR\$")."\n"' #
Perl v5.20.2
$6$7dl4B0fKUimdnR$f6gCu.3IfrxhsnJKFnusDH.UudC.lLOSB1G3D1bIboWxlixzBy2xO/3rCKHmzfwekCTvmQd11bPdcsJOaLkCJ.


# On RHEL 6.6
$ python -c 'import crypt; print crypt.crypt("test_value",
"$6$7dl4B0fKUimdnR$")' # Python 2.6.6
$6$7dl4B0fKUimdnR$f6gCu.3IfrxhsnJKFnusDH.UudC.lLOSB1G3D1bIboWxlixzBy2xO/3rCKHmzfwekCTvmQd11bPdcsJOaLkCJ.

$ perl -e 'print crypt("test_value", "\$6\$7dl4B0fKUimdnR\$")."\n"' #
Perl v5.10.1
$6$7dl4B0fKUimdnR$f6gCu.3IfrxhsnJKFnusDH.UudC.lLOSB1G3D1bIboWxlixzBy2xO/3rCKHmzfwekCTvmQd11bPdcsJOaLkCJ.

-- 
Alex

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