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Index: avahi-core/socket.c
===================================================================
--- avahi-core/socket.c (revision 1369)
+++ avahi-core/socket.c (revision 1370)
@@ -560,7 +560,14 @@
return sendmsg_loop(fd, &msg, 0);
}
-int avahi_send_dns_packet_ipv6(int fd, AvahiIfIndex interface, AvahiDnsPacket *p, const AvahiIPv6Address *src_address, const AvahiIPv6Address *dst_address, uint16_t dst_port) {
+int avahi_send_dns_packet_ipv6(
+ int fd,
+ AvahiIfIndex interface,
+ AvahiDnsPacket *p,
+ const AvahiIPv6Address *src_address,
+ const AvahiIPv6Address *dst_address,
+ uint16_t dst_port) {
+
struct sockaddr_in6 sa;
struct msghdr msg;
struct iovec io;
@@ -617,7 +624,14 @@
return sendmsg_loop(fd, &msg, 0);
}
-AvahiDnsPacket *avahi_recv_dns_packet_ipv4(int fd, AvahiIPv4Address *ret_src_address, uint16_t *ret_src_port, AvahiIPv4Address *ret_dst_address, AvahiIfIndex *ret_iface, uint8_t *ret_ttl) {
+AvahiDnsPacket *avahi_recv_dns_packet_ipv4(
+ int fd,
+ AvahiIPv4Address *ret_src_address,
+ uint16_t *ret_src_port,
+ AvahiIPv4Address *ret_dst_address,
+ AvahiIfIndex *ret_iface,
+ uint8_t *ret_ttl) {
+
AvahiDnsPacket *p= NULL;
struct msghdr msg;
struct iovec io;
@@ -635,8 +649,10 @@
goto fail;
}
- if (ms <= 0)
+ if (ms < 0) {
+ avahi_log_warn("FIONREAD returned negative value.");
goto fail;
+ }
p = avahi_dns_packet_new(ms + AVAHI_DNS_PACKET_EXTRA_SIZE);
@@ -761,7 +777,14 @@
return NULL;
}
-AvahiDnsPacket *avahi_recv_dns_packet_ipv6(int fd, AvahiIPv6Address *ret_src_address, uint16_t *ret_src_port, AvahiIPv6Address *ret_dst_address, AvahiIfIndex *ret_iface, uint8_t *ret_ttl) {
+AvahiDnsPacket *avahi_recv_dns_packet_ipv6(
+ int fd,
+ AvahiIPv6Address *ret_src_address,
+ uint16_t *ret_src_port,
+ AvahiIPv6Address *ret_dst_address,
+ AvahiIfIndex *ret_iface,
+ uint8_t *ret_ttl) {
+
AvahiDnsPacket *p = NULL;
struct msghdr msg;
struct iovec io;
@@ -779,8 +802,10 @@
goto fail;
}
- if (ms <= 0)
+ if (ms < 0) {
+ avahi_log_warn("FIONREAD returned negative value.");
goto fail;
+ }
p = avahi_dns_packet_new(ms + AVAHI_DNS_PACKET_EXTRA_SIZE);
@@ -860,7 +885,7 @@
assert(found_iface);
assert(found_ttl);
-
+
return p;
fail:
@@ -912,13 +937,19 @@
int avahi_open_unicast_socket_ipv6(void) {
struct sockaddr_in6 local;
- int fd = -1;
+ int fd = -1, yes;
if ((fd = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
avahi_log_warn("socket() failed: %s", strerror(errno));
goto fail;
}
+ yes = 1;
+ if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &yes, sizeof(yes)) < 0) {
+ avahi_log_warn("IPV6_V6ONLY failed: %s", strerror(errno));
+ goto fail;
+ }
+
memset(&local, 0, sizeof(local));
local.sin6_family = AF_INET6;
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