diff options
Diffstat (limited to 'src/send.c')
| -rw-r--r-- | src/send.c | 13 |
1 files changed, 8 insertions, 5 deletions
@@ -42,8 +42,9 @@ static inline void add_pktinfo(struct msghdr *msg, const fastd_peer_address_t *l msg->msg_controllen += cmsg->cmsg_len; - struct in_pktinfo *pktinfo = (struct in_pktinfo*)CMSG_DATA(cmsg); - pktinfo->ipi_spec_dst = local_addr->in.sin_addr; + struct in_pktinfo pktinfo = {}; + pktinfo.ipi_spec_dst = local_addr->in.sin_addr; + memcpy(CMSG_DATA(cmsg), &pktinfo, sizeof(pktinfo)); return; } #endif @@ -55,11 +56,13 @@ static inline void add_pktinfo(struct msghdr *msg, const fastd_peer_address_t *l msg->msg_controllen += cmsg->cmsg_len; - struct in6_pktinfo *pktinfo = (struct in6_pktinfo*)CMSG_DATA(cmsg); - pktinfo->ipi6_addr = local_addr->in6.sin6_addr; + struct in6_pktinfo pktinfo = {}; + pktinfo.ipi6_addr = local_addr->in6.sin6_addr; if (IN6_IS_ADDR_LINKLOCAL(&local_addr->in6.sin6_addr)) - pktinfo->ipi6_ifindex = local_addr->in6.sin6_scope_id; + pktinfo.ipi6_ifindex = local_addr->in6.sin6_scope_id; + + memcpy(CMSG_DATA(cmsg), &pktinfo, sizeof(pktinfo)); } } |