diff options
Diffstat (limited to 'stun/stunmessage.c')
| -rw-r--r-- | stun/stunmessage.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/stun/stunmessage.c b/stun/stunmessage.c index 558fe5e..e8184c4 100644 --- a/stun/stunmessage.c +++ b/stun/stunmessage.c @@ -427,14 +427,22 @@ stun_message_append_addr (StunMessage *msg, StunAttribute type, uint16_t alen, port; uint8_t family; + union { + const struct sockaddr *addr; + const struct sockaddr_in *in; + const struct sockaddr_in6 *in6; + } sa; + if ((size_t) addrlen < sizeof (struct sockaddr)) return STUN_MESSAGE_RETURN_INVALID; + sa.addr = addr; + switch (addr->sa_family) { case AF_INET: { - const struct sockaddr_in *ip4 = (const struct sockaddr_in *)addr; + const struct sockaddr_in *ip4 = sa.in; family = 1; port = ip4->sin_port; alen = 4; @@ -444,7 +452,7 @@ stun_message_append_addr (StunMessage *msg, StunAttribute type, case AF_INET6: { - const struct sockaddr_in6 *ip6 = (const struct sockaddr_in6 *)addr; + const struct sockaddr_in6 *ip6 = sa.in6; if ((size_t) addrlen < sizeof (*ip6)) return STUN_MESSAGE_RETURN_INVALID; |