Kurt Roeckx a écrit : > reopen 438179 > thanks > > On Thu, Aug 16, 2007 at 08:24:51PM +0200, Aurelien Jarno wrote: >> This is a feature, not a bug. getaddrinfo() sorts results according to >> RFC3484. You can configure the way they are sorted using /etc/gai.conf. > > None of the rules in rfc3484 say anything about this. In fact, the last > rule says: > Rule 10: Otherwise, leave the order unchanged. > If DA preceded DB in the original list, prefer DA. Otherwise prefer > DB.
Rule 9 comes before: Rule 9: Use longest matching prefix. When DA and DB belong to the same address family (both are IPv6 or both are IPv4): If CommonPrefixLen(DA, Source(DA)) > CommonPrefixLen(DB, Source(DB)), then prefer DA. Similarly, if CommonPrefixLen(DA, Source(DA)) < CommonPrefixLen(DB, Source(DB)), then prefer DB. That's why you see small variation among the returned address. > Also, I don't see an option to prevent it from sorting the list. Because this thing is not configurable. This is not required by the RFC and this is a bad idea as you start using IPv6. >> If you don't want results to be sorted, don't use getaddrinfo(). > > Do you have a suggestion for an other interface that works with > different address types other than getipnodebyname()? > No I don't. Anyway if you don't want to sort to the returned addresses, you only want to do that for IPv4, and thus need two different interfaces. -- .''`. Aurelien Jarno | GPG: 1024D/F1BCDB73 : :' : Debian developer | Electrical Engineer `. `' [EMAIL PROTECTED] | [EMAIL PROTECTED] `- people.debian.org/~aurel32 | www.aurel32.net -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
