From: utzoo!decvax!cca!gwyn@Brl@sri-unix
Newsgroups: net.unix-wizards
Title: Re:  wish list: file access permission bits
Article-I.D.: sri-unix.4445
Posted: Sat Nov 27 18:13:53 1982
Received: Sun Nov 28 05:14:52 1982

From:     Doug Gwyn <gwyn@Brl>
Date:     27 Nov 82 0:01:46-EST (Sat)
Seems reasonable to me.  Note that USG UNIX now has an "open for append"
mode available, as well as "open with truncation".

Someone recently suggested to me that the following independent
write mode bits would be useful:
1)  Allow creation if not present.
2)  Truncate to 0 length on open.
3)  Append (all writing guaranteed at end).
4)  Exclusive open.