rb_w32_sendto     256 include/ruby/win32.h extern int    WSAAPI rb_w32_sendto(int, const char *, int, int, const struct sockaddr *, int);
rb_w32_sendto     659 include/ruby/win32.h #define sendto(s, b, l, f, t, tl) rb_w32_sendto(s, b, l, f, t, tl)