Le lundi 09 mars 2015 à 08:24:38, Michael Kerrisk (man-pages) a écrit :
> Hello Stéphane,
>
> On 03/08/2015 01:03 PM, Stéphane Aulery wrote:
> > Hi Michael,
> >
> > I made another patch with all your remarks.
>
> Did you send it already. (No hurry--it's just that I wonder if I missed it.)
I was waiting your answers to the question bellow before.
> >>> +.B RES_BLAST
> >>> +When resolvers want to even out the load on their nameservers, following
> >>> +them.
> >>
> >> I do not understand that last sentence. Could you clarify please.
> >
> > I must admit that it's not clear to me either. I think this means that
> > server alias are swapped between each request. I have wrong? The word
> > "blast" leaves me skeptical.
> >
> > What I found in code source:
> >
> >>From resolv.h:
> >
> > #define RES_BLAST 0x00020000 /* blast all recursive servers */
> >
> > Form res_send.c
> >
> > /*
> > * Some resolvers want to even out the load on their nameservers.
> > * Note that RES_BLAST overrides RES_ROTATE.
> > */
> > if (__builtin_expect ((statp->options & RES_ROTATE) != 0, 0) &&
> > (statp->options & RES_BLAST) == 0) {
> > struct sockaddr_in6 *ina;
> > unsigned int map;
> >
> > n = 0;
> > while (n < MAXNS && EXT(statp).nsmap[n] == MAXNS)
> > n++;
> > if (n < MAXNS) {
> > ina = EXT(statp).nsaddrs[n];
> > map = EXT(statp).nsmap[n];
> > for (;;) {
> > ns = n + 1;
> > while (ns < MAXNS
> > && EXT(statp).nsmap[ns] == MAXNS)
> > ns++;
> > if (ns == MAXNS)
> > break;
> > EXT(statp).nsaddrs[n] = EXT(statp).nsaddrs[ns];
> > EXT(statp).nsmap[n] = EXT(statp).nsmap[ns];
> > n = ns;
> > }
> > EXT(statp).nsaddrs[n] = ina;
> > EXT(statp).nsmap[n] = map;
> > }
> > }
>
> Okay -- I leave it to your discretion to choose what to do here.
No please, I need your help.
--
Stéphane Aulery
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