? Valid login character set ?

[Julián Muñoz Domínguez <jmunoz softhome net>]

I have got the "fabulous" idea to create some logins using ":", and pam
refuses them, even before to pass them to the corresponding
authentication module.

I need a kind of escape character (non alphanumeric) in the login, for and
application who uses pam.

So I would like to know: what is the valid character set for login ?

I don't find anything specifying it.




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Saludos de Julián
EA4ACL
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