Re: updated ipv6 patch for postfix

Subject: Re: updated ipv6 patch for postfix
From: $B5HF#1QL (($B5HF#1QL())
Date: Wed Jan 19 2000 - 09:07:05 CST

• Next message: Bennett Todd: "Re: Enhancement Policy"
• Previous message: Guenther Blatzheim: "Mail in queue with wrong resolved address"
• Next in thread: $B?LC#:H(: "Re: updated ipv6 patch for postfix"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

In article <y7vya9mcoim.wlcondor.isl.rdc.toshiba.co.jp> (at Wed, 19 Jan 2000 20:02:57 +0900), JINMEI Tatuya / $B?LC#:H(B <jinmeiisl.rdc.toshiba.co.jp> says:

> > SIOCGIFCONF is no good for this on Linux. The sockaddr_in6 structure is too
> > big to fit inside struct ifreq.

> Sockaddr_in6 does not fit in ifreq{} in BSDs, either. But it doesn't
> matter for us if we carefully parse the result of the ioctl.

I remember that application increments its pointer manually by
sizeof(struct sockaddr_in6) - sizeof(struct sockaddr) bytes,
but it is not good for Linux because we don't know the actual size of
sockaddr_in6 structure returned from kernel (and would vary if kernel
supports sin6_scope_id) --- please remember, we don't have sa_len
member in sockaddr{}. If you have any idea on this, please tell us.

FYI:
 sin6_scope_id patch (done by me) is now available,
 but I don't know when it goes into the main source tree...
 After that, we could have IPv6 support for SIOCGIFCONF (because old
 kernels won't return sockaddr_in6 and applications would not be
 confused by difference of sizes).

-- 
Hideaki YOSHIFUJI <yoshfujiecei.tohoku.ac.jp>
Web Page: http://www.ecei.tohoku.ac.jp/%7Eyoshfuji/
PGP5i FP: F731 6599 5EB2 BBA7 1515  1323 1806 A96F 5700 6B25 

• Next message: Bennett Todd: "Re: Enhancement Policy"
• Previous message: Guenther Blatzheim: "Mail in queue with wrong resolved address"
• Next in thread: $B?LC#:H(: "Re: updated ipv6 patch for postfix"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b27 : Wed Jan 19 2000 - 12:40:03 CST