Posted on 2010-02-10 16:22
Prayer 閱讀(9193)
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SOCKET
我的udp程序，運行時提示錯誤：
sendto error in udptalk.c!
Address
family not supported by protocol family.
我使用的協議socket(
AF_INET,SOCK_DGRAM,0)
請教錯誤原因。
I think the problem is the third parameter. It must be IPPROTO_UDP which is defined as 17 on solaris. 0 is defined as IPPROTO_IP (dummy for IP).
Hello, I use IPV4. I have found a workaround: Edit C:\Windows\System32\drivers\etc\hosts and add the line "127.0.0.1 localhost" . Regards, Stefan
>-----BEGIN PGP SIGNED MESSAGE-----
>Hash: SHA1
>
>Hi there,
>
>i see the following messages in a servers log (2.1.5 on debian
>that is):
>postfix/smtp[31937]: socket to some.remote.host[]: Address family not
>supported by protocol (port 25)
>
>after that, a TLS session to some.remote.host is established and
>the mail gets delivered. The remote host has one ipv6 and one v4
>record so i guess the error comes from the v6 record since v6 isn't
>available on the server. Its the first server where i've seen such
>a message and it doesn't seem to "break" something, but it's annoying.
>Any idea what causes this and how to disable the message?
>
>
lookup for some.remote.host returns an AAAA record that is tried and
yields the error above. disable IPv6 in your dns server.
if using a remote dns server, install one on the postfix box.
最終的解決方法
增加
sin.sin_family=AF_INET;