xtables: Fix error messages in commands with rule number

Use E2BIG if rule identified by given number is not found. ENOENT is
used if referenced chain is not found. Without this, a command
specifying a non-existing chain in combination with a rule number like
e.g.: 'iptables-nft -I nonexist 23 -j ACCEPT' returns "Index of
insertion too big." instead of "No chain/target/match by that name."
like legacy iptables does.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

0 files changed, 0 insertions, 0 deletions