_cleanup_(dns_packet_unrefp) DnsPacket *p = NULL;
union {
struct cmsghdr header; /* For alignment */
- uint8_t buffer[CMSG_SPACE(MAX(sizeof(struct in_pktinfo), sizeof(struct in6_pktinfo)))
+ uint8_t buffer[CMSG_SPACE(CONST_MAX(sizeof(struct in_pktinfo), sizeof(struct in6_pktinfo)))
+ CMSG_SPACE(int) /* ttl/hoplimit */
+ EXTRA_CMSG_SPACE /* kernel appears to require extra buffer space */];
} control;