From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31505 invoked by alias); 6 May 2004 14:50:42 -0000 Mailing-List: contact ecos-discuss-help@ecos.sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: ecos-discuss-owner@ecos.sourceware.org Received: (qmail 31498 invoked from network); 6 May 2004 14:50:41 -0000 Received: from unknown (HELO proxy.baslerweb.com) (145.253.187.130) by sources.redhat.com with SMTP; 6 May 2004 14:50:41 -0000 Received: from comm1.baslerweb.com ([172.16.13.2]) by proxy.baslerweb.com (Post.Office MTA v3.5.3 release 223 ID# 0-0U10L2S100V35) with ESMTP id com for ; Thu, 6 May 2004 16:50:29 +0200 Received: from [172.16.13.253] (localhost [172.16.13.253]) by comm1.baslerweb.com with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2657.72) id JHN37HNV; Thu, 6 May 2004 16:50:40 +0200 From: Thomas Koeller Organization: Basler AG To: ecos-discuss@ecos.sourceware.org Date: Thu, 06 May 2004 14:50:00 -0000 User-Agent: KMail/1.6.1 References: <20040506065556.51970.qmail@web40913.mail.yahoo.com> <409A4DB8.4010404@rawbw.com> In-Reply-To: <409A4DB8.4010404@rawbw.com> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200405061652.49353.thomas.koeller@baslerweb.com> Subject: Re: [ECOS] zlib_uncompress usage(more info) X-SW-Source: 2004-05/txt/msg00087.txt.bz2 Zlib needs _huge_ buffers in RAM. A description of how to estimate the amount of ram required can be found in packages/services/compress/zlib/current/include/zconf.h. tk John Newlin wrote: > Most likely you need to skip around the gzip header (or strip the header > prior to programming the image into flash) > > If you have the zlib code, look in gzio.c for the function check_header > as an example > > -john > > bhanuprakash kandimalla wrote: > >Just want to put some more info to my previous mail. > > > >Hello Ecos World: > >Did any one use the zlib uncompress function. This > >funtion has the following structure:uncompress(dest, > >dest_len, source, source_len). Is there anylimit on > >the souce_len to use. I have a compressed image stored > >in boot flash and want to uncompress onto RAM. The > >source file is of 177768 bytes. Some how when I use > >this function, it always returns Z_MEM_ERROR. (I used > >the Cygwin tool to create the compressed image > >(gzip)). > > > >>>This Z_MEM_ERROR is returning from inflate_blocks() > > > >function. What does this mean... > > > >Can someone suggest me where I am doing wrong. I > >appreciate any help. > >Thanks in advance > > > > > > > > > >__________________________________ > >Do you Yahoo!? > >Win a $20,000 Career Makeover at Yahoo! HotJobs > >http://hotjobs.sweepstakes.yahoo.com/careermakeover -- -------------------------------------------------- Thomas Koeller, Software Development Basler Vision Technologies thomas dot koeller at baslerweb dot com http://www.baslerweb.com ============================== -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss