/* This function is an egress point, i.e. it returns libuv errors rather than
* system errors.
*/
int uv__udp_send(uv_udp_send_t* req,
uv_udp_t* handle,
const uv_buf_t bufs[],
unsigned int nbufs,
const struct sockaddr* addr,
unsigned int addrlen,
uv_udp_send_cb send_cb) {
const struct sockaddr* bind_addr;
int err;
if (!(handle->flags & UV_HANDLE_BOUND)) {
if (addrlen == sizeof(uv_addr_ip4_any_))
bind_addr = (const struct sockaddr*) &uv_addr_ip4_any_;
else if (addrlen == sizeof(uv_addr_ip6_any_))
bind_addr = (const struct sockaddr*) &uv_addr_ip6_any_;
else
return UV_EINVAL;
err = uv_udp_maybe_bind(handle, bind_addr, addrlen, 0);
if (err)
return uv_translate_sys_error(err);
}
err = uv__send(req, handle, bufs, nbufs, addr, addrlen, send_cb);
if (err)
return uv_translate_sys_error(err);
return 0;
}
int uv__udp_send6(uv_udp_send_t* req,
uv_udp_t* handle,
uv_buf_t bufs[],
int bufcnt,
struct sockaddr_in6 addr,
uv_udp_send_cb send_cb) {
return uv__send(req,
handle,
bufs,
bufcnt,
(struct sockaddr*)&addr,
sizeof addr,
send_cb);
}
int uv__udp_send6(uv_udp_send_t* req, uv_udp_t* handle, uv_buf_t bufs[],
int bufcnt, struct sockaddr_in6 addr, uv_udp_send_cb cb) {
if (!(handle->flags & UV_HANDLE_BOUND) &&
uv_udp_bind6(handle, uv_addr_ip6_any_, 0) < 0) {
return -1;
}
return uv__send(req,
handle,
bufs,
bufcnt,
(struct sockaddr*) &addr,
sizeof addr,
cb);
}