linux-kernel - Re: 2.6.18-mm1 -- ieee80211: Info elem: parse failed: info_element->len + 2 > left : info

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Date:	Wed, 27 Sep 2006 13:18:49 -0700
From:	Andrew Morton <akpm@...l.org>
To:	James Ketrenos <jketreno@...ux.intel.com>
Cc:	Miles Lane <miles.lane@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jouni Malinen <jkmaline@...hut.fi>
Subject: Re: 2.6.18-mm1 -- ieee80211: Info elem: parse failed:
 info_element->len + 2 > left : info_element->len+2=28 left=9, id=221.

On Wed, 27 Sep 2006 13:47:18 -0700
James Ketrenos <jketreno@...ux.intel.com> wrote:

> +static int snprint_line(char *buf, size_t count,
> +			const u8 * data, u32 len, u32 ofs)
> +{
> +	int out, i, j, l;
> +	char c;
> +
> +	out = snprintf(buf, count, "%08X", ofs);
> +
> +	for (l = 0, i = 0; i < 2; i++) {
> +		out += snprintf(buf + out, count - out, " ");
> +		for (j = 0; j < 8 && l < len; j++, l++)
> +			out += snprintf(buf + out, count - out, "%02X ",
> +					data[(i * 8 + j)]);
> +		for (; j < 8; j++)
> +			out += snprintf(buf + out, count - out, "   ");
> +	}
> +
> +	out += snprintf(buf + out, count - out, " ");
> +	for (l = 0, i = 0; i < 2; i++) {
> +		out += snprintf(buf + out, count - out, " ");
> +		for (j = 0; j < 8 && l < len; j++, l++) {
> +			c = data[(i * 8 + j)];
> +			if (!isascii(c) || !isprint(c))
> +				c = '.';
> +
> +			out += snprintf(buf + out, count - out, "%c", c);
> +		}
> +
> +		for (; j < 8; j++)
> +			out += snprintf(buf + out, count - out, " ");
> +	}
> +
> +	return out;
> +}

I've occasionally felt that the kernel should have a generic
print-a-hunk-of-memory function (slab.c has two open-coded
implementations already).

What does the output of this one look like?
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