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Handle a weird IOCP error for UDP sockets. Fixes #2140

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dmiller
2020-10-07 21:56:28 +00:00
parent ee6bc18844
commit c8450d4d0c
1 changed files with 3 additions and 1 deletions
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4
nsock/src/engine_iocp.c
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@@ -617,7 +617,9 @@ static void call_read_overlapped(struct nevent *nse) {
if (err) {
err = socket_errno();
if (errcode_is_failure(err)) {
eov->err = err;
// WSARecvFrom with overlapped I/O may generate ERROR_PORT_UNREACHABLE on ICMP error.
// We'll translate that so Nsock-using software doesn't have to know about it.
eov->err = (err == ERROR_PORT_UNREACHABLE ? ECONNREFUSED : err);
/* Send the error to the main loop to be picked up by the appropriate handler */
BOOL bRet = PostQueuedCompletionStatus(iinfo->iocp, -1, (ULONG_PTR)nse->iod, (LPOVERLAPPED)eov);
if (!bRet)