svn commit: r315653 - in head: lib/libstand sys/boot/common sys/boot/i386/libi386
Slawa Olhovchenkov
slw at zxy.spb.ru
Tue Mar 21 12:35:56 UTC 2017
On Mon, Mar 20, 2017 at 10:20:17PM +0000, Toomas Soome wrote:
> Author: tsoome
> Date: Mon Mar 20 22:20:17 2017
> New Revision: 315653
> URL: https://svnweb.freebsd.org/changeset/base/315653
>
> Log:
> loader: verify the value from dhcp.interface-mtu and use snprintf to set mtu
>
> Since the uset can set dhcp.interface-mtu, we need to try to validate the
> value. So we verify if the conversion to int is successful and we will not
> allow to set value greater than max IPv4 packet size.
>
> + tmp > USHRT_MAX) {
> + printf("%s: bad value: \"%s\", "
> + "ignoring\n",
> + "dhcp.interface-mtu", val);
===
USHRT_MAX Maximum value for an object of type unsigned short int
65535 (216-1) or greater*
* the actual value depends on the particular system and library
implementation, but shall reflect the limits of these types in the
target platform.
===
I mean IF_MAXMTU more correct.
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