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Fix #34, send pings only every 5 seconds
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@ -232,6 +232,8 @@ tunnel_dns(int tun_fd, int dns_fd)
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return -1;
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write_tun(tun_fd, out, outlen);
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/* Server may have more data to send me, ask for it */
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if (!is_sending())
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send_ping(dns_fd);
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@ -249,7 +251,7 @@ tunnel(int tun_fd, int dns_fd)
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rv = 0;
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while (running) {
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tv.tv_sec = 1;
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tv.tv_sec = 5;
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tv.tv_usec = 0;
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FD_ZERO(&fds);
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