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Diffstat (limited to 'lib/lwres/man/lwres_getrrsetbyname.3')
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diff --git a/lib/lwres/man/lwres_getrrsetbyname.3 b/lib/lwres/man/lwres_getrrsetbyname.3 new file mode 100644 index 0000000..8419fff --- /dev/null +++ b/lib/lwres/man/lwres_getrrsetbyname.3 @@ -0,0 +1,164 @@ +.\" Copyright (C) 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC") +.\" Copyright (C) 2000, 2001 Internet Software Consortium. +.\" +.\" Permission to use, copy, modify, and distribute this software for any +.\" purpose with or without fee is hereby granted, provided that the above +.\" copyright notice and this permission notice appear in all copies. +.\" +.\" THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH +.\" REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +.\" AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, +.\" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM +.\" LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE +.\" OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR +.\" PERFORMANCE OF THIS SOFTWARE. +.\" +.\" $Id: lwres_getrrsetbyname.3,v 1.25 2007/01/30 00:24:59 marka Exp $ +.\" +.hy 0 +.ad l +.\" Title: lwres_getrrsetbyname +.\" Author: +.\" Generator: DocBook XSL Stylesheets v1.71.1 <http://docbook.sf.net/> +.\" Date: Oct 18, 2000 +.\" Manual: BIND9 +.\" Source: BIND9 +.\" +.TH "LWRES_GETRRSETBYNAME" "3" "Oct 18, 2000" "BIND9" "BIND9" +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.SH "NAME" +lwres_getrrsetbyname, lwres_freerrset \- retrieve DNS records +.SH "SYNOPSIS" +.nf +#include <lwres/netdb.h> +.fi +.HP 25 +.BI "int lwres_getrrsetbyname(const\ char\ *" "hostname" ", unsigned\ int\ " "rdclass" ", unsigned\ int\ " "rdtype" ", unsigned\ int\ " "flags" ", struct\ rrsetinfo\ **" "res" ");" +.HP 21 +.BI "void lwres_freerrset(struct\ rrsetinfo\ *" "rrset" ");" +.PP +The following structures are used: +.PP +.RS 4 +.nf +struct rdatainfo { + unsigned int rdi_length; /* length of data */ + unsigned char *rdi_data; /* record data */ +}; +.fi +.RE +.sp +.PP +.RS 4 +.nf +struct rrsetinfo { + unsigned int rri_flags; /* RRSET_VALIDATED... */ + unsigned int rri_rdclass; /* class number */ + unsigned int rri_rdtype; /* RR type number */ + unsigned int rri_ttl; /* time to live */ + unsigned int rri_nrdatas; /* size of rdatas array */ + unsigned int rri_nsigs; /* size of sigs array */ + char *rri_name; /* canonical name */ + struct rdatainfo *rri_rdatas; /* individual records */ + struct rdatainfo *rri_sigs; /* individual signatures */ +}; +.fi +.RE +.sp +.SH "DESCRIPTION" +.PP +\fBlwres_getrrsetbyname()\fR +gets a set of resource records associated with a +\fIhostname\fR, +\fIclass\fR, and +\fItype\fR. +\fIhostname\fR +is a pointer a to null\-terminated string. The +\fIflags\fR +field is currently unused and must be zero. +.PP +After a successful call to +\fBlwres_getrrsetbyname()\fR, +\fI*res\fR +is a pointer to an +\fBrrsetinfo\fR +structure, containing a list of one or more +\fBrdatainfo\fR +structures containing resource records and potentially another list of +\fBrdatainfo\fR +structures containing SIG resource records associated with those records. The members +\fBrri_rdclass\fR +and +\fBrri_rdtype\fR +are copied from the parameters. +\fBrri_ttl\fR +and +\fBrri_name\fR +are properties of the obtained rrset. The resource records contained in +\fBrri_rdatas\fR +and +\fBrri_sigs\fR +are in uncompressed DNS wire format. Properties of the rdataset are represented in the +\fBrri_flags\fR +bitfield. If the RRSET_VALIDATED bit is set, the data has been DNSSEC validated and the signatures verified. +.PP +All of the information returned by +\fBlwres_getrrsetbyname()\fR +is dynamically allocated: the +\fBrrsetinfo\fR +and +\fBrdatainfo\fR +structures, and the canonical host name strings pointed to by the +\fBrrsetinfo\fRstructure. Memory allocated for the dynamically allocated structures created by a successful call to +\fBlwres_getrrsetbyname()\fR +is released by +\fBlwres_freerrset()\fR. +\fIrrset\fR +is a pointer to a +\fBstruct rrset\fR +created by a call to +\fBlwres_getrrsetbyname()\fR. +.PP +.SH "RETURN VALUES" +.PP +\fBlwres_getrrsetbyname()\fR +returns zero on success, and one of the following error codes if an error occurred: +.PP +\fBERRSET_NONAME\fR +.RS 4 +the name does not exist +.RE +.PP +\fBERRSET_NODATA\fR +.RS 4 +the name exists, but does not have data of the desired type +.RE +.PP +\fBERRSET_NOMEMORY\fR +.RS 4 +memory could not be allocated +.RE +.PP +\fBERRSET_INVAL\fR +.RS 4 +a parameter is invalid +.RE +.PP +\fBERRSET_FAIL\fR +.RS 4 +other failure +.RE +.PP +.RS 4 +.RE +.SH "SEE ALSO" +.PP +\fBlwres\fR(3). +.SH "COPYRIGHT" +Copyright \(co 2004, 2005, 2007 Internet Systems Consortium, Inc. ("ISC") +.br +Copyright \(co 2000, 2001 Internet Software Consortium. +.br |