From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@cse.psu.edu, geoff@collyer.net
References: <ac4f1be2e68c1cf16740673b12ef5c8e@collyer.net>
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In-Reply-To: <ac4f1be2e68c1cf16740673b12ef5c8e@collyer.net>
Subject: Re: [9fans] tarfs & 2GB limit
Message-Id: <20060114003028.06A1035076@dexter-peak.quanstro.net>
Date: Fri, 13 Jan 2006 18:30:28 -0600
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Topicbox-Message-UUID: d67bd464-ead0-11e9-9d60-3106f5b1d025

there is no p9p tarfs. i keep a copy of (what i thought was)
an up-to-date plan9 dist here so i can easily grab stuff that hasn't 
been ported.

the 2GB filesize limit of tarfs is due to the long "off" passed 
to doread. i'm working on it.

- erik

geoff@collyer.net writes

| 
| The tar archive format limits archive members to 2⁳⁳ bytes = 8GB.
| There are 11 octal digits for file size.  The current Plan 9 tar will
| complain and refuse to add a file to a tar archive if its size exceeds
| 8GB-1.
| 
| The p9p tarfs is older than the Plan 9 one; in particular, the change
| to cast seek's second argument to vlong is already in the Plan 9
| tarfs, though not all of the other changes are.