static int uv__udp_maybe_deferred_bind(uv_udp_t* handle, int domain) {
struct sockaddr_storage taddr;
socklen_t addrlen;
assert(domain == AF_INET || domain == AF_INET6);
if (handle->fd != -1)
return 0;
switch (domain) {
case AF_INET:
{
struct sockaddr_in* addr = (void*)&taddr;
memset(addr, 0, sizeof *addr);
addr->sin_family = AF_INET;
addr->sin_addr.s_addr = INADDR_ANY;
addrlen = sizeof *addr;
break;
}
case AF_INET6:
{
struct sockaddr_in6* addr = (void*)&taddr;
memset(addr, 0, sizeof *addr);
addr->sin6_family = AF_INET6;
addr->sin6_addr = in6addr_any;
addrlen = sizeof *addr;
break;
}
default:
assert(0 && "unsupported address family");
abort();
}
return uv__udp_bind(handle, domain, (struct sockaddr*)&taddr, addrlen, 0);
}
static int uv__udp_maybe_deferred_bind(uv_udp_t* handle,
int domain,
unsigned int flags) {
unsigned char taddr[sizeof(struct sockaddr_in6)];
socklen_t addrlen;
if (handle->io_watcher.fd != -1)
return 0;
switch (domain) {
case AF_INET:
{
struct sockaddr_in* addr = (void*)&taddr;
memset(addr, 0, sizeof *addr);
addr->sin_family = AF_INET;
addr->sin_addr.s_addr = INADDR_ANY;
addrlen = sizeof *addr;
break;
}
case AF_INET6:
{
struct sockaddr_in6* addr = (void*)&taddr;
memset(addr, 0, sizeof *addr);
addr->sin6_family = AF_INET6;
addr->sin6_addr = in6addr_any;
addrlen = sizeof *addr;
break;
}
default:
assert(0 && "unsupported address family");
abort();
}
return uv__udp_bind(handle, (const struct sockaddr*) &taddr, addrlen, flags);
}
int uv_udp_bind(uv_udp_t* handle,
struct sockaddr_in addr,
unsigned int flags) {
if (handle->type != UV_UDP || addr.sin_family != AF_INET)
return UV_EINVAL;
else
return uv__udp_bind(handle, addr, flags);
}
int uv_udp_bind(uv_udp_t* handle, struct sockaddr_in addr,
unsigned int flags) {
if (handle->type != UV_UDP || addr.sin_family != AF_INET) {
uv__set_artificial_error(handle->loop, UV_EFAULT);
return -1;
}
return uv__udp_bind(handle, addr, flags);
}
int uv_udp_bind6(uv_udp_t* handle,
const struct sockaddr_in6* addr,
unsigned int flags) {
if (handle->type == UV_UDP && addr->sin6_family == AF_INET6) {
return uv__udp_bind(handle,
(const struct sockaddr*) addr,
sizeof(*addr),
flags);
}
return UV_EINVAL;
}
int uv_udp_bind6(uv_udp_t* handle, struct sockaddr_in6 addr, unsigned flags) {
if (handle->type != UV_UDP || addr.sin6_family != AF_INET6) {
uv__set_sys_error(handle->loop, EFAULT);
return -1;
}
return uv__udp_bind(handle,
AF_INET6,
(struct sockaddr*)&addr,
sizeof addr,
flags);
}
int uv_udp_bind(uv_udp_t* handle,
const struct sockaddr* addr,
unsigned int flags) {
unsigned int addrlen;
if (handle->type != UV_UDP)
return UV_EINVAL;
if (addr->sa_family == AF_INET)
addrlen = sizeof(struct sockaddr_in);
else if (addr->sa_family == AF_INET6)
addrlen = sizeof(struct sockaddr_in6);
else
return UV_EINVAL;
return uv__udp_bind(handle, addr, addrlen, flags);
}