76 lines
2.2 KiB
Groff
76 lines
2.2 KiB
Groff
.\" $Id$
|
|
.\"
|
|
.\" 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_PTR_REPLY 3 "25 July 1998"
|
|
.SH NAME
|
|
ares_parse_ptr_reply \- Parse a reply to a DNS query of type PTR into a hostent
|
|
.SH SYNOPSIS
|
|
.nf
|
|
.B #include <ares.h>
|
|
.PP
|
|
.B int ares_parse_ptr_reply(const unsigned char *\fIabuf\fP, int \fIalen\fP,
|
|
.B const void *\fIaddr\fP, int \fIaddrlen\fP, int \fIfamily\fP,
|
|
.B struct hostent **\fIhost\fP);
|
|
.fi
|
|
.SH DESCRIPTION
|
|
The
|
|
.B ares_parse_ptr_reply
|
|
function parses the response to a query of type PTR into a
|
|
.BR "struct hostent" .
|
|
The parameters
|
|
.I abuf
|
|
and
|
|
.I alen
|
|
give the contents of the response. The parameters
|
|
.IR addr ,
|
|
.IR addrlen ,
|
|
and
|
|
.I family
|
|
specify which address was queried for; they are not used to verify the
|
|
response, merely used to fill in the address of the
|
|
.BR "struct hostent" .
|
|
The resulting
|
|
.B struct hostent
|
|
is stored in allocated memory and a pointer to it stored into the
|
|
variable pointed to by
|
|
.IR host .
|
|
It is the caller's responsibility to free the resulting host structure
|
|
using
|
|
.BR ares_free_hostent (3)
|
|
when it is no longer needed.
|
|
.SH RETURN VALUES
|
|
.B ares_parse_ptr_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_gethostbyaddr (3),
|
|
.BR ares_free_hostent (3)
|
|
.SH AUTHOR
|
|
Greg Hudson, MIT Information Systems
|
|
.br
|
|
Copyright 1998 by the Massachusetts Institute of Technology.
|