Re: [PATCH] Fix acct quoting in audit_log_acct_message())
On Wed, 2008-03-05 at 10:04 -0500, John Dennis wrote:
>>> a) byte sequences with the following special characters
encoded as %XX
>>> where XX is hexadecimal value of the encoded byte. Special characters
>>> are: bytes with value <= 0x20 or >= 0x7F, '%', '(',
')', and '='.
>> Perhaps we should reserve more characters for future features - at least
>> '"', '\'' and '\\', maybe everything but
[a-zA-Z0-9_-].
Lets not invent YAES (Yet Another Encoding System). The world already
has enough :-) There is value in sticking with known encodings, many
programmers are instantly familiar with them and there is a raft of
working code to support them. Off the top of my head I can think of:
1) backslash escapes with embedded octals
2) quoted printable
3) base64
4) xml entities
5) url encoding - which is what I proposed and is most efficient
and
readable (well it is equivalent to quoted printable except it uses %
instead of = which we cannot use as it has already a meaning as name
value separator)
--
Tomas Mraz
No matter how far down the wrong road you've gone, turn back.
Turkish proverb