libiptc: fix retry path in TC_INIT

There is an issue on TC_INIT retry path:
In error case, TC_FREE is called and close sockfd.
The retry does not reopen then always fail.

The proposing patch reopens sockfd in retry patch.

Signed-off-by: Miguel GAIO <miguel.gaio@efixo.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
1 file changed