vwrite
if (atomicio(vwrite, nfd, obuf, 3) != 3)
cnt = atomicio(vwrite, proxyfd, buf, 3);
cnt = atomicio(vwrite, proxyfd, buf, wlen);
cnt = atomicio(vwrite, proxyfd, buf, wlen);
cnt = atomicio(vwrite, proxyfd, buf, r);
if ((ssize_t)(cnt = atomicio(vwrite, proxyfd, buf, r)) != r)
if ((cnt = atomicio(vwrite, proxyfd, __UNCONST("\r\n"), 2)) != 2)