setsockopt        393 ext/net/net.c          SCM_SYSCALL(r, setsockopt(s->fd, level, option, cvalue, size));
setsockopt        396 ext/net/net.c          SCM_SYSCALL(r, setsockopt(s->fd, level, option, &v, sizeof(int)));
setsockopt        481 ext/net/net.c  	r = setsockopt(INVALID_SOCKET, SOL_SOCKET,