Re: [ECOS] zlib_uncompress usage(more info)

[John Newlin <jnewlin at rawbw dot com>]

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
>
>
> 	
> 		
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