diff options
author | Phil Sutter <phil@nwl.cc> | 2018-03-01 15:00:31 +0100 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-03-02 11:46:56 +0100 |
commit | 4342fcbd40534158107ebe6a10e5f7886b3e8ced (patch) | |
tree | 432b5c894fe67f720e61d3e14edfca3447a4b172 /src | |
parent | 5043a1e4847c0149dabaf0b529a14a43b957e5e4 (diff) |
netlink: Complain if setting O_NONBLOCK fails
Assuming that code is not aware that reads from netlink socket may
block, treat inability to set O_NONBLOCK flag as fatal initialization
error aborting program execution.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src')
-rw-r--r-- | src/netlink.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/netlink.c b/src/netlink.c index c7adf8b4..06b1f57a 100644 --- a/src/netlink.c +++ b/src/netlink.c @@ -59,7 +59,8 @@ struct mnl_socket *netlink_open_sock(void) if (nf_sock == NULL) netlink_init_error(); - fcntl(mnl_socket_get_fd(nf_sock), F_SETFL, O_NONBLOCK); + if (fcntl(mnl_socket_get_fd(nf_sock), F_SETFL, O_NONBLOCK)) + netlink_init_error(); return nf_sock; } |