diff options
-rw-r--r-- | examples/nfct-mnl-create.c | 6 | ||||
-rw-r--r-- | examples/nfct-mnl-del.c | 6 | ||||
-rw-r--r-- | examples/nfct-mnl-get.c | 6 | ||||
-rw-r--r-- | examples/nfct-mnl-set-label.c | 7 |
4 files changed, 21 insertions, 4 deletions
diff --git a/examples/nfct-mnl-create.c b/examples/nfct-mnl-create.c index 64387a7..7fd224d 100644 --- a/examples/nfct-mnl-create.c +++ b/examples/nfct-mnl-create.c @@ -60,7 +60,11 @@ int main(void) nfct_set_attr_u8(ct, ATTR_TCP_STATE, TCP_CONNTRACK_SYN_SENT); nfct_set_attr_u32(ct, ATTR_TIMEOUT, 100); - nfct_nlmsg_build(nlh, ct); + ret = nfct_nlmsg_build(nlh, ct); + if (ret == -1) { + perror("nfct_nlmsg_build"); + exit(EXIT_FAILURE); + } ret = mnl_socket_sendto(nl, nlh, nlh->nlmsg_len); if (ret == -1) { diff --git a/examples/nfct-mnl-del.c b/examples/nfct-mnl-del.c index 91ad9e4..806d9f8 100644 --- a/examples/nfct-mnl-del.c +++ b/examples/nfct-mnl-del.c @@ -55,7 +55,11 @@ int main(void) nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(20)); nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(10)); - nfct_nlmsg_build(nlh, ct); + ret = nfct_nlmsg_build(nlh, ct); + if (ret == -1) { + perror("nfct_nlmsg_build"); + exit(EXIT_FAILURE); + } ret = mnl_socket_sendto(nl, nlh, nlh->nlmsg_len); if (ret == -1) { diff --git a/examples/nfct-mnl-get.c b/examples/nfct-mnl-get.c index 4858acf..5be3331 100644 --- a/examples/nfct-mnl-get.c +++ b/examples/nfct-mnl-get.c @@ -74,7 +74,11 @@ int main(void) nfct_set_attr_u16(ct, ATTR_PORT_SRC, htons(20)); nfct_set_attr_u16(ct, ATTR_PORT_DST, htons(10)); - nfct_nlmsg_build(nlh, ct); + ret = nfct_nlmsg_build(nlh, ct); + if (ret == -1) { + perror("nfct_nlmsg_build"); + exit(EXIT_FAILURE); + } ret = mnl_socket_sendto(nl, nlh, nlh->nlmsg_len); if (ret == -1) { diff --git a/examples/nfct-mnl-set-label.c b/examples/nfct-mnl-set-label.c index c52b267..50bebb0 100644 --- a/examples/nfct-mnl-set-label.c +++ b/examples/nfct-mnl-set-label.c @@ -19,6 +19,7 @@ static void set_label(struct nf_conntrack *ct, struct callback_args *cbargs) char buf[MNL_SOCKET_BUFFER_SIZE]; struct nlmsghdr *nlh; struct nfgenmsg *nfh; + int ret; if (b) { if (bit < 0) @@ -55,7 +56,11 @@ static void set_label(struct nf_conntrack *ct, struct callback_args *cbargs) nfh->version = NFNETLINK_V0; nfh->res_id = 0; - nfct_nlmsg_build(nlh, ct); + ret = nfct_nlmsg_build(nlh, ct); + if (ret == -1) { + perror("nfct_nlmsg_build"); + exit(EXIT_FAILURE); + } if (mnl_socket_sendto(cbargs->nl, nlh, nlh->nlmsg_len) < 0) perror("mnl_socket_sendto"); |