daxi20/smartdns
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update

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This commit is contained in:
Nick Peng
2018-05-14 00:44:54 +08:00
parent 83d0d5cf6f
commit 07a114666f
3 changed files with 231 additions and 25 deletions
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15
dns_server.c
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@@ -46,7 +46,7 @@ static void tv_sub(struct timeval *out, struct timeval *in)
void _dns_server_period_run()
{
return;
unsigned char packet_data[DNS_INPACKET_SIZE];
unsigned char data[DNS_INPACKET_SIZE];
@@ -64,7 +64,7 @@ void _dns_server_period_run()
socklen_t to_len = sizeof(to);
dns_packet_init(packet, DNS_INPACKET_SIZE, &head);
dns_add_domain(packet, "www.baidu.com", 1, 1);
dns_add_domain(packet, "www.huawei.com", 1, 1);
len = dns_encode(data, DNS_INPACKET_SIZE, packet);
memset(&to, 0, sizeof(to));
@@ -75,8 +75,6 @@ void _dns_server_period_run()
if (len < 0) {
printf("send failed.");
}
printf("send %d\n", len);
}
static int _dns_server_process(struct timeval *now)
@@ -97,6 +95,7 @@ static int _dns_server_process(struct timeval *now)
len = dns_decode(packet, DNS_INPACKET_SIZE, inpacket, len);
if (len) {
printf("decode failed.\n");
return 0;
goto errout;
}
@@ -116,6 +115,11 @@ static int _dns_server_process(struct timeval *now)
dns_get_A(rrs, name, 128, &ttl, addr);
printf("%s %d : %d.%d.%d.%d\n", name, ttl, addr[0], addr[1], addr[2], addr[3]);
} break;
case DNS_T_CNAME: {
char cname[128];
dns_get_CNAME(rrs, name, 128, &ttl, cname, 128);
printf("%s %d : %s\n", name, ttl, cname);
} break;
default:
break;
}
@@ -133,6 +137,7 @@ static int _dns_server_process(struct timeval *now)
}
}
printf("\n");
return 0;
errout:
return -1;
@@ -157,7 +162,7 @@ int dns_server_run(void)
last = now;
}
num = epoll_wait(server.epoll_fd, events, DNS_MAX_EVENTS, 100);
num = epoll_wait(server.epoll_fd, events, DNS_MAX_EVENTS, 1000);
if (num < 0) {
gettimeofday(&now, 0);
usleep(100000);