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42 lines
1.2 KiB
Diff
42 lines
1.2 KiB
Diff
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From 317eda1a0f2b31be43624cf0fecfc35fdcdc99eb Mon Sep 17 00:00:00 2001
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From: Rinat Ibragimov <ibragimovrinat@mail.ru>
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Date: Sun, 18 Jan 2015 21:15:16 +0300
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Subject: [PATCH] async_network: skip resolution of already resolved addresses
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---
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src/async_network.c | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/src/async_network.c b/src/async_network.c
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index a9b12c6..6f879ad 100644
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--- a/src/async_network.c
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+++ b/src/async_network.c
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@@ -27,6 +27,7 @@
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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+#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#include <event2/event.h>
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@@ -256,6 +257,16 @@ void
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handle_tcp_connect_stage1(struct async_network_task_s *task)
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{
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struct evdns_request *req;
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+ struct sockaddr_in sai;
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+
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+ memset(&sai, 0, sizeof(sai));
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+ if (inet_pton(AF_INET, task->host, &sai.sin_addr) == 1) {
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+ // already a valid IP address
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+ handle_tcp_connect_stage2(DNS_ERR_NONE, DNS_IPv4_A, 1, 300, &sai.sin_addr, task);
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+ return;
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+ }
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+
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+ // queue DNS request
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req = evdns_base_resolve_ipv4(evdns_b, task->host, DNS_QUERY_NO_SEARCH,
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handle_tcp_connect_stage2, task);
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// TODO: what about ipv6?
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--
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2.2.1
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