crypt module documentation extended

[fserb]

BPO	997668
Nosy	@loewis
Files	cryptdoc.patch: patch to extend crypt module documentation

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2004-07-26.12:07:12.000>
created_at = <Date 2004-07-25.19:34:54.000>
labels = ['docs']
title = 'crypt module documentation extended'
updated_at = <Date 2004-07-26.12:07:12.000>
user = 'https://bugs.python.org/fserb'

bugs.python.org fields:

activity = <Date 2004-07-26.12:07:12.000>
actor = 'loewis'
assignee = 'none'
closed = True
closed_date = None
closer = None
components = ['Documentation']
creation = <Date 2004-07-25.19:34:54.000>
creator = 'fserb'
dependencies = []
files = ['6115']
hgrepos = []
issue_num = 997668
keywords = ['patch']
message_count = 2.0
messages = ['46461', '46462']
nosy_count = 2.0
nosy_names = ['loewis', 'fserb']
pr_nums = []
priority = 'normal'
resolution = 'accepted'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue997668'
versions = []

[fserb]

I thought there was some information missing on the
crypt module documentation.

I've changed two things basically.

First, I made it clear that every extension (or general
behavior) of the crypt(3) implementation on the running
system will also be valid on the crypt module.

Second, since some extensions (as the GNU extension on
Linux) allows different values on the salt parameter,
the whole crypted password should be used as salt when
checking for a password. With this, I've corrected the
example code to use the full cryptedpasswd instead of
cryptedpasswd[:2]

I would've changed the whole example to a simpler one.
But left it to another patch.

Since this is my first python patch, hope I've not made
anything stupid.

[loewis]

Logged In: YES
user_id=21627

Thanks for the patch, applied as libcrypt.tex 1.17 and
1.16.36.1.