netfilter: x_tables: rectify XT_FUNCTION_MAXNAMELEN usage

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There has been quite a confusion in userspace about
XT_FUNCTION_MAXNAMELEN; because struct xt_entry_match used MAX-1,
userspace would have to do an awkward MAX-2 for maximum length
checking (due to '\0'). This patch adds a new define that matches the
definition of XT_TABLE_MAXNAMELEN - being the size of the actual
struct member, not one off.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>

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Jan Engelhardt 2010-04-27 15:34:34 +02:00 • committed by Patrick McHardy

parent af740b2c8f

commit 4b2cbd42be

1 changed files with 6 additions and 8 deletions

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include/linux/netfilter/x_tables.h

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