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Use recv on windows and read for the others
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@ -361,7 +361,13 @@ read_tun(int tun_fd, char *buf, size_t len)
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/* FreeBSD/Darwin/NetBSD has no header */
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int bytes;
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memset(buf, 0, 4);
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#ifdef WINDOWS32
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/* Windows needs recv() since it is local UDP socket */
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bytes = recv(tun_fd, buf + 4, len - 4, 0);
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#else
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/* The other need read() because fd is not a socket */
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bytes = read(tun_fd, buf + 4, len - 4);
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#endif /*WINDOWS32*/
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if (bytes < 0) {
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return bytes;
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} else {
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