struct iovec io;
#ifdef IP_PKTINFO
struct cmsghdr *cmsg;
- uint8_t cmsg_data[CMSG_SPACE(sizeof(struct in_pktinfo))];
+ size_t cmsg_data[( CMSG_SPACE(sizeof(struct in_pktinfo)) / sizeof(size_t)) + 1];
+#elif defined(IP_SENDSRCADDR)
+ struct cmsghdr *cmsg;
+ size_t cmsg_data[( CMSG_SPACE(sizeof(struct in_addr)) / sizeof(size_t)) + 1];
#endif
assert(fd >= 0);
msg.msg_control = cmsg_data;
msg.msg_controllen = sizeof(cmsg_data);
}
-#else
-#ifdef __GNUC__
-#warning "FIXME: We need some code to set the outgoing interface/local address here if IP_PKTINFO is not available"
-#endif
+#elif defined(IP_SENDSRCADDR)
+ if (src_address) {
+ struct in_addr *addr;
+
+ memset(cmsg_data, 0, sizeof(cmsg_data));
+ cmsg = (struct cmsghdr*) cmsg_data;
+ cmsg->cmsg_len = CMSG_LEN(sizeof(struct in_addr));
+ cmsg->cmsg_level = IPPROTO_IP;
+ cmsg->cmsg_type = IP_SENDSRCADDR;
+
+ addr = (struct in_addr *)CMSG_DATA(cmsg);
+ addr->s_addr = src_address->address;
+
+ msg.msg_control = cmsg_data;
+ msg.msg_controllen = sizeof(cmsg_data);
+ }
+#elif defined(IP_MULTICAST_IF)
+ {
+ struct in_addr any = { INADDR_ANY };
+ if (setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF, src_address ? (const void*) &src_address->address : (const void*) &any, sizeof(struct in_addr)) < 0) {
+ avahi_log_warn("IP_MULTICAST_IF failed: %s", strerror(errno));
+ return -1;
+ }
+ }
+#elif defined(__GNUC__)
+#warning "FIXME: We need some code to set the outgoing interface/local address here if IP_PKTINFO/IP_MULTICAST_IF is not available"
#endif
-
+
return sendmsg_loop(fd, &msg, 0);
}
struct msghdr msg;
struct iovec io;
struct cmsghdr *cmsg;
- uint8_t cmsg_data[CMSG_SPACE(sizeof(struct in6_pktinfo))];
+ size_t cmsg_data[(CMSG_SPACE(sizeof(struct in6_pktinfo))/sizeof(size_t)) + 1];
assert(fd >= 0);
assert(p);
AvahiDnsPacket *p= NULL;
struct msghdr msg;
struct iovec io;
- uint8_t aux[1024];
+ size_t aux[1024 / sizeof(size_t)]; /* for alignment on ia64 ! */
ssize_t l;
struct cmsghdr *cmsg;
int found_addr = 0;
#ifdef IP_RECVDSTADDR
case IP_RECVDSTADDR:
- if (ret_dest_address)
- memcpy(&ret_dest_address->address, CMSG_DATA (cmsg), 4);
+ if (ret_dst_address)
+ memcpy(&ret_dst_address->address, CMSG_DATA (cmsg), 4);
found_addr = 1;
break;
AvahiDnsPacket *p = NULL;
struct msghdr msg;
struct iovec io;
- uint8_t aux[64];
+ size_t aux[1024 / sizeof(size_t)];
ssize_t l;
int ms;
struct cmsghdr *cmsg;