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From: A Large Angry SCM <gitzilla@gmail.com>
To: Junio C Hamano <junkio@cox.net>
Cc: Nicolas Pitre <nico@cam.org>,
	git@vger.kernel.org, Linus Torvalds <torvalds@osdl.org>
Subject: Re: Mozilla .git tree
Date: Fri, 01 Sep 2006 10:45:30 -0700	[thread overview]
Message-ID: <44F871BA.3070303@gmail.com> (raw)
In-Reply-To: <7vzmdmh2lu.fsf@assigned-by-dhcp.cox.net>

Junio C Hamano wrote:
> Nicolas Pitre <nico@cam.org> writes:
> 
>> And the zlib header contains a CRC which we're about to use for 
>> validating the data when doing delta data reuse in order to prevent pack 
>> corruption propagation like the one recently posted on the list.  
> 
> Ah, never thought of using the CRC directly.  I was thinking
> about inflating into void and see if it succeeds, which as you
> say is perhaps quite expensive.

Unfortunately, the zlib CRC is of the _uncompressed_ data [1], so
inflating the stream is still necessary to check for corruption.

[1] RFC 1950, "ZLIB Compressed Data Format Specification", May 1996.
Pages 4-6.

  parent reply	other threads:[~2006-09-01 17:45 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <9e4733910608290943g6aa79855q62b98caf4f19510@mail.gmail.com>
     [not found] ` <20060829165811.GB21729@spearce.org>
     [not found]   ` <9e4733910608291037k2d9fb791v18abc19bdddf5e89@mail.gmail.com>
     [not found]     ` <20060829175819.GE21729@spearce.org>
     [not found]       ` <9e4733910608291155g782953bbv5df1b74878f4fcf1@mail.gmail.com>
     [not found]         ` <20060829190548.GK21729@spearce.org>
     [not found]           ` <9e4733910608291252q130fc723r945e6ab906ca6969@mail.gmail.com>
     [not found]             ` <20060829232007.GC22935@spearce.org>
     [not found]               ` <9e4733910608291807q9b896e4sdbfaa9e49de58c2b@mail.gmail.com>
2006-08-30  1:51                 ` Mozilla .git tree Shawn Pearce
2006-08-30  2:25                   ` Shawn Pearce
2006-08-30  2:58                   ` Jon Smirl
2006-08-30  3:10                     ` Shawn Pearce
2006-08-30  3:27                       ` Jon Smirl
2006-08-30  5:53                       ` Nicolas Pitre
2006-08-30 11:42                         ` Junio C Hamano
2006-09-01  7:42                           ` Junio C Hamano
2006-09-02  1:19                             ` Shawn Pearce
2006-09-02  4:01                               ` Junio C Hamano
2006-09-02  4:39                                 ` Shawn Pearce
2006-09-02 11:06                                   ` Junio C Hamano
2006-09-02 14:20                                     ` Jon Smirl
2006-09-02 17:39                                       ` Shawn Pearce
2006-09-02 18:56                                         ` Linus Torvalds
2006-09-02 20:53                                           ` Junio C Hamano
2006-09-02 17:44                                     ` Shawn Pearce
2006-09-02  2:04                             ` Shawn Pearce
2006-09-02 11:02                               ` Junio C Hamano
2006-09-02 17:51                                 ` Shawn Pearce
2006-09-02 20:55                                   ` Junio C Hamano
2006-09-03  3:54                                     ` Shawn Pearce
2006-09-01 17:45                           ` A Large Angry SCM [this message]
2006-09-01 18:35                             ` Linus Torvalds
2006-09-01 19:56                               ` Junio C Hamano
2006-09-01 23:14                               ` [PATCH] pack-objects: re-validate data we copy from elsewhere Junio C Hamano
2006-09-02  0:23                                 ` Linus Torvalds
2006-09-02  1:39                                   ` VGER BF report? Johannes Schindelin
2006-09-02  5:58                                     ` Sam Ravnborg
2006-09-02  1:52                                   ` [PATCH] pack-objects: re-validate data we copy from elsewhere Junio C Hamano
2006-09-02  3:52                                   ` Junio C Hamano
2006-09-02  4:52                                     ` Shawn Pearce
2006-09-02  9:42                                       ` Junio C Hamano
2006-09-02 17:43                                         ` Linus Torvalds
2006-09-02 10:09                                       ` Junio C Hamano
2006-09-02 17:54                                         ` Shawn Pearce
2006-09-03 21:00                                           ` Junio C Hamano
2006-09-04  4:10                                             ` Shawn Pearce
2006-09-04  5:50                                               ` Junio C Hamano
2006-09-04  6:44                                                 ` Shawn Pearce
2006-09-04  7:39                                                   ` Junio C Hamano
2006-09-03  0:27                                         ` Linus Torvalds
2006-09-03  0:32                                           ` Junio C Hamano
2006-09-05  8:12                                           ` Junio C Hamano
2006-09-02 18:43                                     ` Linus Torvalds
2006-09-02 20:56                                       ` Junio C Hamano
2006-09-03 21:48                                       ` Junio C Hamano
2006-09-03 22:00                                         ` Linus Torvalds
2006-09-03 22:16                                           ` Linus Torvalds
2006-09-03 22:34                                           ` Junio C Hamano
2006-09-04  4:06                                             ` Junio C Hamano
2006-09-04 15:19                                               ` Linus Torvalds

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