[root@01 tmp]# wget api.mch.weixin.qq.com --2016-06-18 14:51:03-- http://api.mch.weixin.qq.com/ Resolving api.mch.weixin.qq.com...
[root@01 tmp]# wget -4 api.mch.weixin.qq.com --2016-06-18 17:03:52-- http://api.mch.weixin.qq.com/ Resolving api.mch.weixin.qq.com... 123.151.71.149, 123.151.79.109 Connecting to api.mch.weixin.qq.com|123.151.71.149|:80... connected.
#include <stdio.h>
#include <string.h>
#include <netdb.h>
#include <iostream>
#include <sys/types.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
using namespace std;
int main() {
struct addrinfo hints,*answer,*curr,*p;
int error;
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_INET6;//AF_UNSPEC; // use AF_INET6 to force IPv6
hints.ai_socktype = SOCK_STREAM;//SOCK_DGRAM; // SOCK_STREAM
if ((error = getaddrinfo("api.mch.weixin.qq.com", NULL, &hints, &answer)) != 0) {
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(error));
return 1;
} else cout <<"Success with a URL\n";
char ipstr[16];
for (curr = answer; curr != NULL; curr = curr->ai_next) {
inet_ntop(AF_INET,&(((struct sockaddr_in *)(curr->ai_addr))->sin_addr),ipstr, 16);
printf("%s\n", ipstr);
}
freeaddrinfo(answer);
return 0;
}
dig @ns-tel1.qq.com weixin.qq.com AAAA weixin.qq.com. 43200 IN SOA ns-tel1.qq.com. webmaster.qq.com. 1293502040 300 600 86400 300
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