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resolver.3: Add basic notes on 'op' argument of res_nmkquery() and res_mkquery() 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2017-06-15 10:43:05 +02:00
parent 6c97eb40aa
commit ab67ced080
1 changed files with 15 additions and 4 deletions
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19
man3/resolver.3
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@ -191,10 +191,21 @@ and
functions construct a query message in \fIbuf\fP
of length \fIbuflen\fP for the domain name \fIdname\fP.
The query type
\fIop\fP is usually
.BR QUERY ,
but can be any of the types defined in
\fI<arpa/nameser.h>\fP.
\fIop\fP is one of the following (typically
.BR QUERY ):
.TP
.B QUERY
Standard query.
.TP
.B IQUERY
Inverse query.
This option was removed in glibc 2.26,
.\" commit e4e794841e3140875f2aa86b90e2ada3d61e1244
since it has not been supported by DNS servers for a very long time.
.TP
.B NS_NOTIFY_OP
Notify secondary of SOA (Start of Authority) change.
.PP
\fInewrr\fP is currently unused.
The