Winapi GetAddrInfo无法解析ipv6.google.com（但nslookup可以）

我可以尝试使用来解决：

返回的套接字错误代码为

11001

（不知道这样的主机）

注意：不推荐使用的旧功能不支持IPv6。它已被替换为

奇怪的是，我可以使用

nslookup

，它可以很好地找到地址：

问题

SendRequest(), len 33
    HEADER:
        opcode = QUERY, id = 4, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        ipv6.google.com, type = A, class = IN

SendRequest(), len 33
    HEADER:
        opcode = QUERY, id = 5, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        ipv6.google.com, type = AAAA, class = IN

权威答案

Got answer (106 bytes):
    HEADER:
        opcode = QUERY, id = 4, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 1,  authority records = 1,  additional = 0

    QUESTIONS:
        ipv6.google.com, type = A, class = IN
    ANSWERS:
    ->  ipv6.google.com
        type = CNAME, class = IN, dlen = 9
        canonical name = ipv6.l.google.com
        ttl = 21743 (6 hours 2 mins 23 secs)
    AUTHORITY RECORDS:
    ->  l.google.com
        type = SOA, class = IN, dlen = 38
        ttl = 30 (30 secs)
        primary name server = ns4.google.com
        responsible mail addr = dns-admin.google.com
        serial  = 1486713
        refresh = 900 (15 mins)
        retry   = 900 (15 mins)
        expire  = 1800 (30 mins)
        default TTL = 60 (1 min)

Got answer (82 bytes):
    HEADER:
        opcode = QUERY, id = 5, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 2,  authority records = 0,  additional = 0

    QUESTIONS:
        ipv6.google.com, type = AAAA, class = IN
    ANSWERS:
    ->  ipv6.google.com
        type = CNAME, class = IN, dlen = 9
        canonical name = ipv6.l.google.com
        ttl = 21743 (6 hours 2 mins 23 secs)
    ->  ipv6.l.google.com
        type = AAAA, class = IN, dlen = 16
        AAAA IPv6 address = 2607:f8b0:4009:801::1012
        ttl = 270 (4 mins 30 secs)

------------
Name:    ipv6.l.google.com
Address:  2607:f8b0:4009:801::1012
Aliases:  ipv6.google.com

非权威性问题

SendRequest(), len 33
    HEADER:
        opcode = QUERY, id = 4, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        ipv6.google.com, type = A, class = IN

SendRequest(), len 33
    HEADER:
        opcode = QUERY, id = 5, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        ipv6.google.com, type = AAAA, class = IN

非权威性回答

Got answer (106 bytes):
    HEADER:
        opcode = QUERY, id = 4, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 1,  authority records = 1,  additional = 0

    QUESTIONS:
        ipv6.google.com, type = A, class = IN
    ANSWERS:
    ->  ipv6.google.com
        type = CNAME, class = IN, dlen = 9
        canonical name = ipv6.l.google.com
        ttl = 21743 (6 hours 2 mins 23 secs)
    AUTHORITY RECORDS:
    ->  l.google.com
        type = SOA, class = IN, dlen = 38
        ttl = 30 (30 secs)
        primary name server = ns4.google.com
        responsible mail addr = dns-admin.google.com
        serial  = 1486713
        refresh = 900 (15 mins)
        retry   = 900 (15 mins)
        expire  = 1800 (30 mins)
        default TTL = 60 (1 min)

Got answer (82 bytes):
    HEADER:
        opcode = QUERY, id = 5, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 2,  authority records = 0,  additional = 0

    QUESTIONS:
        ipv6.google.com, type = AAAA, class = IN
    ANSWERS:
    ->  ipv6.google.com
        type = CNAME, class = IN, dlen = 9
        canonical name = ipv6.l.google.com
        ttl = 21743 (6 hours 2 mins 23 secs)
    ->  ipv6.l.google.com
        type = AAAA, class = IN, dlen = 16
        AAAA IPv6 address = 2607:f8b0:4009:801::1012
        ttl = 270 (4 mins 30 secs)

------------
Name:    ipv6.l.google.com
Address:  2607:f8b0:4009:801::1012
Aliases:  ipv6.google.com

---

当无法解析地址时，是什么导致

nslookup

能够解析地址？我可以用

GetAddrInfo

做些什么不同的事情，这样它就可以工作了？

尝试在

pHints

中传递

AF\u INET6

参数来处理IPV6地址。这似乎对我有用：

struct addrinfo *result = NULL;
struct addrinfo hints;

ZeroMemory( &hints, sizeof(hints) );
hints.ai_family = AF_INET6;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = IPPROTO_UDP;

dwRetval = getaddrinfo("ipv6.google.com", NULL, &hints, &result);
// check your dwRetval here ...

---

我也有类似的问题，不是代码问题，而是操作系统问题。以下命令表示windows正确解析了IPv6地址，而不是给出WSANO_数据错误：

Netsh接口teredo设置状态enterpriseclient

资料来源：

---

允许我解析

ipv6.google.com

，但是

stackoverflow.com

无法解析。我仍然需要解决

nslookup

如何管理它的问题。我找到了

nslookup

如何完成它的任务。它运行

A

查询，然后分别执行

AAAA

查找。因此，我必须调用

getaddrinfo

两次，一次用于IPv6，另一次用于IPv4。请尝试将

hits.ai_family

设置为

AF_unsec

以允许

getaddrinfo（）

同时查询IPv4和IPv6信息。@RemyLebeau将family设置为AF_unsec没有帮助。我想也许家庭应该有一点标志（

AF_INET6或AF_INET

）；但它不是位标志。不，它不是位掩码。明确指出：“对于ai_系列，AF_unsec的值表示调用者将接受任何协议系列。此值可用于返回pNodeName参数所指向主机名的IPv4和IPv6地址。在Windows Server 2003和Windows XP上，仅当本地计算机上安装了IPv6时，才会返回IPv6地址。”