On 03/09/2015 09:44 PM, Stéphane Aulery wrote: > Missing options: RES_INSECURE1, RES_INSECURE2, RES_NOALIASES, USE_INET6, > ROTATE, NOCHECKNAME, RES_KEEPTSIG, BLAST, USEBSTRING, NOIP6DOTINT, USE_EDNS0, > SNGLKUP, SNGLKUPREOP, RES_USE_DNSSEC, NOTLDQUERY, DEFAULT > > Written from the glibc source and resolv.conf.5. Thanks Stéphane! Applied. Cheers, Michael > Debian bug #527136 reported by Jakub Wilk <ubanus@xxxxxxxxxxxx> > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=527136 > Signed-off-by: Stéphane Aulery <saulery@xxxxxxx> > --- > man3/resolver.3 | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++----- > 1 file changed, 91 insertions(+), 8 deletions(-) > > diff --git a/man3/resolver.3 b/man3/resolver.3 > index 19c4192..06704b1 100644 > --- a/man3/resolver.3 > +++ b/man3/resolver.3 > @@ -197,19 +197,20 @@ which is not the default. > Accept authoritative answers only. > .BR res_send () > continues until > -it finds an authoritative answer or returns an error. [Not currently > -implemented]. > +it finds an authoritative answer or returns an error. > +[Not currently implemented]. > .TP > .B RES_USEVC > Use TCP connections for queries rather than UDP datagrams. > .TP > .B RES_PRIMARY > Query primary domain name server only. > +[Not currently implemented]. > .TP > .B RES_IGNTC > Ignore truncation errors. > -Don't retry with TCP. [Not currently > -implemented]. > +Don't retry with TCP. > +[Not currently implemented]. > .TP > .B RES_RECURSE > Set the recursion desired bit in queries. > @@ -238,10 +239,92 @@ domain and in parent domains. > This option is used by > .BR gethostbyname (3). > [Enabled by default]. > -.PP > -This list is not complete. > -You can find some other flags described in > -.BR resolv.conf (5). > +.TP > +.B RES_INSECURE1 > +Accept a response from a wrong server and show it on standard output > +(for debug purpose only). > +.TP > +.B RES_INSECURE2 > +Accept a response which contains a wrong query and show it on standard > +output (for debug purpose only). > +.TP > +.B RES_NOALIASES > +Disable usage of > +.B HOSTALIASES > +environment variable. > +.TP > +.B RES_USE_INET6 > +Try an AAAA query before an A query inside the > +.BR gethostbyname () > +function, and map IPv4 responses in IPv6 "tunneled form" if no AAAA records > +are found but an A record set exists. > +.TP > +.B RES_ROTATE > +Causes round-robin selection of name servers from among those listed. > +This has the effect of spreading the query load among all listed servers, > +rather than having all clients try the first listed server first every > +time. > +.TP > +.B RES_NOCHECKNAME > +Disable the modern BIND checking of incoming hostnames and mail names > +for invalid characters such as underscore (_), non-ASCII, > +or control characters. > +[Not currently implemented]. > +.TP > +.B RES_KEEPTSIG > +Do not strip TSIG records. > +[Not currently implemented]. > +.TP > +.B RES_BLAST > +Send each query simultaneously and recursively to all servers. > +Note this option overrides > +.BR RES_ROTATE . > +.TP > +.BR RES_USEBSTRING " (since glibc 2.3.4)" > +Make reverse IPv6 lookups using the bit-label format described in RFC 2673; > +if this option is not set, then nibble format is used. > +.TP > +.B RES_NOIP6DOTINT > +Use > +.I ip6.arpa > +zone in IPv6 reverse lookup instead of > +.IR ip6.int , > +which is deprecated since glibc 2.3.4. > +[Enabled by default]. > +.TP > +.BR RES_USE_EDNS0 " (since glibc 2.6)" > +Enables support for the DNS extensions (EDNS0) described in RFC 2671. > +.TP > +.BR RES_SNGLKUP " (since glibc 2.10)" > +By default, glibc performs IPv4 and IPv6 lookups in parallel since > +version 2.9. > +Some appliance DNS servers cannot handle these queries properly > +and make the requests time out. > +This option disables the behavior and makes glibc > +perform the IPv6 and IPv4 requests sequentially > +(at the cost of some slowdown of the resolving process). > +.TP > +.B RES_SNGLKUPREOP > +When > +.B RES_SNGLKUP > +option is enabled, opens a new socket for the each request. > +.TP > +.B RES_USE_DNSSEC > +Use DNSSEC with OK bit in OPT record. > +This option implies > +.BR RES_USE_EDNS0 . > +.TP > +.B RES_NOTLDQUERY > +Do not look up unqualified name as a top-level domain (TLD). > +.TP > +.B RES_DEFAULT > +Default option which implies: > +.BR RES_RECURSE , > +.BR RES_DEFNAMES , > +.BR RES_DNSRCH > +and > +.BR RES_NOIP6DOTINT . > + > .SH RETURN VALUE > The > .BR res_init () > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
