diff options
Diffstat (limited to 'src/libnfnetlink.c')
| -rw-r--r-- | src/libnfnetlink.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/src/libnfnetlink.c b/src/libnfnetlink.c index 3db21e0..667e5ef 100644 --- a/src/libnfnetlink.c +++ b/src/libnfnetlink.c @@ -55,12 +55,23 @@ /** * \mainpage * - * libnfnetlink is the bottom-level communication between the kernel and - * userspace + * Deprecated + * --- + * New applications should use + * [libmnl](https://netfilter.org/projects/libmnl/doxygen/html/). + * + * [libnetfilter_queue] + * (https://netfilter.org/projects/libnetfilter_queue/doxygen/html/) + * now provides a set of helpers for libmnl, in addition to those it provides + * for libnfnetlink (which are now deprecated). */ /** - * \defgroup libnfnetlink Functions in libnfnetlink.c + * \defgroup libnfnetlink Functions in libnfnetlink.c [DEPRECATED] + * This documentation is provided for the benefit of maintainers of legacy code. + * + * New applications should use + * [libmnl](https://netfilter.org/projects/libmnl/doxygen/html/). * @{ */ @@ -199,7 +210,8 @@ struct nfnl_handle *nfnl_open(void) nfnlh->peer.nl_family = AF_NETLINK; addr_len = sizeof(nfnlh->local); - getsockname(nfnlh->fd, (struct sockaddr *)&nfnlh->local, &addr_len); + if (getsockname(nfnlh->fd, (struct sockaddr *)&nfnlh->local, &addr_len)) + goto err_close; if (addr_len != sizeof(nfnlh->local)) { errno = EINVAL; goto err_close; @@ -220,7 +232,8 @@ struct nfnl_handle *nfnl_open(void) /* use getsockname to get the netlink pid that the kernel assigned us */ addr_len = sizeof(nfnlh->local); - getsockname(nfnlh->fd, (struct sockaddr *)&nfnlh->local, &addr_len); + if (getsockname(nfnlh->fd, (struct sockaddr *)&nfnlh->local, &addr_len)) + goto err_close; if (addr_len != sizeof(nfnlh->local)) { errno = EINVAL; goto err_close; |