auth_pam.c patch (fwd)

[iMil]

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Hi,

i am working on a mail solution based on sendmail, ldap and saslauthd. To
authenticate users, i choosed to use pam_ldap in conjunction with
saslauthd. My users are identified with they usernames assosiated with
their domain names. To keep the solution simple to the user, they will
login on every services using their email as the username, and i needed to
rewrite the arobase to another character.
This is what this patch does, with a little bit more flexibility. It
applies to auth_pam.c. I used the mech_option to do so, not sure this is
the cleanest way but i didn't want to implement a conf file reading /
parsing for a single option. If you beleive it's better i could do it anyway.
The format for the mech_option is :

<separator>,fmt:<format>

Where separator is the string separating the user part from the domain
part, and format is the format, printf-style, you want your final login to
have, for example :

/usr/local/sbin/saslauthd -a pam -O @,fmt:%s_%s

will rewrite user at domain.tld to user_domain.tld. As you can imagine, the
1st %s refers to user and the 2d to domain.

You'll find the patch at :
http://imil.net/stuff/auth_pam+user_rewrite.diff

It applies to version 2.1.21 (from FreeBSD ports), hope you'll like it

regards

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iMil <imil at home.imil.net>                                                 _
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