[CentOS] E-mail advice sought
Gordon Messmer
gordon.messmer at gmail.com
Sun May 1 17:24:30 UTC 2016
On 05/01/2016 05:23 AM, Alice Wonder wrote:
> It's the set I'm after. Or its complement. I don't care. Not whether
> my code should use set A or its complement.
Then you're after RFC 5321 section 4.1.2 and possibly 6531 section 3.3
(but probably not for a few years yet). You should also consider
shadow-utils' chkname.c, where valid local user names are restricted to
"[a-z_][a-z0-9_-]*[$]" of less than USER_NAME_MAX_LENGTH characters
(though not with a regex).
https://tools.ietf.org/html/rfc5321
https://tools.ietf.org/html/rfc6531
http://anonscm.debian.org/cgit/pkg-shadow/shadow.git/tree/libmisc/chkname.c
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