Ethereal-dev: Re: [Ethereal-dev] 802.11 compute FCS patch

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From: Guy Harris <gharris@xxxxxxxxx>
Date: Wed, 31 Jul 2002 02:01:56 -0700
On Tue, Jul 30, 2002 at 09:47:16PM -0700, Chris Waters wrote:
> Here is a patch for the 802.11 dissector that computes the FCS over the
> received data and compares it against the received FCS. It leverages the WEP
> CRC table.

Checked in (with "unsigned long" changed to "guint32", as the CRC is 32
bits, and "unsigned long" isn't always 32 bits).

> +   unsigned long fcs = crc32(tvb_get_ptr(tvb, 0, hdr_len + len), hdr_len +
> len);

It appears that your mail program "helpfully" split lines, so I had to
manually un-split them in the patch; if patches are sent as
attachements, they're less likely to have their lines "helpfully" split,
or have tabs "helpfully" converted to spaces, by mail software.