lkml.org 
[lkml]   [2001]   [Apr]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [OFFTOPIC] Re: [PATCH] Single user linux
Date
From
> And get_mail must have elevated privileges to search for the users mail...
> or sendmail must have already switched user on reciept to put it in the
> users inbox which also requires privleges...

No. Think instead of blindly following existing implementation

socket(AF_UNIX, SOCK_STREAM, 0);
connect("/var/run/mailservice");
write("GIMMEMYMAIL\n");
read("200 CATCH..");
read(all my mail)

The daemon needs no priviledge. The client needs no priviledge. The
PEERCRED authentication on AF_UNIX sockets does the work. I can even pass you
back the file handle of the mailbox if I was using an old style non database
indexed mail spool.

> It's much more efficent to process each mail as it arrives.

You are doing a lot more exec() calls that way. If you get enough mail
to make spool space an issue you want a daemon.

Alan


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:27    [from the cache]
©2003-2011 Jasper Spaans