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@@ -1094,7 +1094,9 @@ tor_socketpair(int family, int type, int protocol, int fd[2])
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/* On Windows, WSAEWOULDBLOCK is not always correct: when you see it,
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* you need to ask the socket for its actual errno. Also, you need to
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- * get your errors from WSAGetLastError, not errno.
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+ * get your errors from WSAGetLastError, not errno. (If you supply a
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+ * socket of -1, we check WSAGetLastError, but don't correct
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+ * WSAEWOULDBLOCKs.)
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*/
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#ifdef MS_WINDOWS
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int tor_socket_errno(int sock)
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