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Log DNS failures in mOS

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To aid disagnosing cases like https://forum.cesanta.com/index.php?p=/discussion/397/retries-connecting-to-aws-broker

PUBLISHED_FROM=98680b594dbed42234fc53050c9df292feb32f35
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Deomid Ryabkov authored and Cesanta Bot committed 2017-04-11 15:51:27 +00:00
1 parent 7f259f2a79
commit a07fb2be51
1 file changed
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mongoose.c
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@@ -11001,6 +11001,11 @@ static void mg_resolve_async_eh(struct mg_connection *nc, int ev,
case MG_EV_CLOSE: case MG_EV_CLOSE:
/* If we got here with request still not done, fire an error callback. */ /* If we got here with request still not done, fire an error callback. */
if (req != NULL) { if (req != NULL) {
char addr[32];
mg_sock_addr_to_str(&nc->sa, addr, sizeof(addr), MG_SOCK_STRINGIFY_IP);
#ifdef MG_LOG_DNS_FAILURES
LOG(LL_ERROR, ("Failed to resolve '%s', server %s", req->name, addr));
#endif
req->callback(NULL, req->data, req->err); req->callback(NULL, req->data, req->err);
nc->user_data = NULL; nc->user_data = NULL;
MG_FREE(req); MG_FREE(req);