When trying to adjust receive buffer size, the second call to
setsockopt() was not error-checked.
Signed-off-by: Phil Sutter <phil@xxxxxx>
---
src/mnl.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/src/mnl.c b/src/mnl.c
index 2be8ca14e50da..0d9b7ffc85c76 100644
--- a/src/mnl.c
+++ b/src/mnl.c
@@ -1425,8 +1425,11 @@ int mnl_nft_event_listener(struct mnl_socket *nf_sock, unsigned int debug_mask,
*/
ret = setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &bufsiz,
sizeof(socklen_t));
- nft_print(octx, "# Cannot set up netlink socket buffer size to %u bytes, falling back to %u bytes\n",
- NFTABLES_NLEVENT_BUFSIZ, bufsiz);
+ if (ret < 0)
+ nft_print(octx, "# Cannot increase netlink socket buffer size, expect message loss\n");
+ else
+ nft_print(octx, "# Cannot set up netlink socket buffer size to %u bytes, falling back to %u bytes\n",
+ NFTABLES_NLEVENT_BUFSIZ, bufsiz);
}
while (1) {
--
2.19.0
