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* utils: fix wrong use of errno in example filesPablo Neira Ayuso2008-12-101-4/+7
| | | | | | | | | | | | This patch removes the use of strerr(errno) when the returned valued is != -1. This fixes random segfaults in my x86_64 machines. According to the documentation, errno should not be used unless the returned value is -1. This patch also includes some missing nfct_close() calls in the examples. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* groups: add attribute group APIPablo Neira Ayuso2008-10-301-0/+53
This new API allows you to set and get some logical set of attributes. This is not intended to replace the existing per-attribute get/set API but to provide more efficient way to get/set certain attributes. This change includes an example file (conntrack_grp_create.c) of the use of the attribute group API. See ATTR_GRP_* for more information on the existing groups. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>