Messages in this thread |  | | | Subject | Re: [OFFTOPIC] Re: [PATCH] Single user linux | | Date | Tue, 24 Apr 2001 18:16:54 +0100 (BST) | | From | Alan Cox <> |
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> 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
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