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- Jakub Hrozek added ares_parse_srv_reply() for SRV parsing

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Daniel Stenberg
2009-09-04 21:56:14 +00:00
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.\"
.\" Copyright 1998 by the Massachusetts Institute of Technology.
.\"
.\" Permission to use, copy, modify, and distribute this
.\" software and its documentation for any purpose and without
.\" fee is hereby granted, provided that the above copyright
.\" notice appear in all copies and that both that copyright
.\" notice and this permission notice appear in supporting
.\" documentation, and that the name of M.I.T. not be used in
.\" advertising or publicity pertaining to distribution of the
.\" software without specific, written prior permission.
.\" M.I.T. makes no representations about the suitability of
.\" this software for any purpose. It is provided "as is"
.\" without express or implied warranty.
.\"
.TH ARES_PARSE_SRV_REPLY 3 "4 August 2009"
.SH NAME
ares_parse_srv_reply \- Parse a reply to a DNS query of type SRV into a
struct srv_reply
.SH SYNOPSIS
.nf
.B #include <ares.h>
.PP
.B int ares_parse_srv_reply(const unsigned char* \fIabuf\fP, int \fIalen\fP,
.B struct srv_reply** \fIsrv_out\fP, int *\fInsrvreply\fP);
.fi
.SH DESCRIPTION
The
.B ares_parse_srv_reply
function parses the response to a query of type SRV into a
.I struct srv_reply
The parameters
.I abuf
and
.I alen
give the contents of the response. The result is stored in allocated
memory and a pointer to it stored into the variable pointed to by
.IR srv_out .
The number of responses is stored into the variable pointed to by
.IR nsrvreply .
It is the caller's responsibility to free the resulting
.IR srv_out
structure when it is no longer needed.
.PP
The structure
.I srv_reply
contains the following fields:
.sp
.in +4n
.nf
struct srv_reply {
u_int16_t weight;
u_int16_t priority;
u_int16_t port;
char *host;
};
.fi
.in
.PP
.SH RETURN VALUES
.B ares_parse_srv_reply
can return any of the following values:
.TP 15
.B ARES_SUCCESS
The response was successfully parsed.
.TP 15
.B ARES_EBADRESP
The response was malformatted.
.TP 15
.B ARES_ENODATA
The response did not contain an answer to the query.
.TP 15
.B ARES_ENOMEM
Memory was exhausted.
.SH SEE ALSO
.BR ares_query (3)
.SH AUTHOR
Written by Jakub Hrozek <jhrozek@redhat.com>, on behalf of Red Hat, Inc http://www.redhat.com