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35d4c57051
ares_addr6ttl in order to prevent name space pollution, along with necessary changes to code base and man pages.This change does not break ABI, there is no need to recompile existing applications. But existing applications using these structs with the old name will need source code adjustments when recompiled using c-ares 1.6.1.
80 lines
2.3 KiB
Groff
80 lines
2.3 KiB
Groff
.\" $Id$
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.\"
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.\" Copyright 1998 by the Massachusetts Institute of Technology.
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.\"
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.\" Permission to use, copy, modify, and distribute this
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.\" software and its documentation for any purpose and without
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.\" fee is hereby granted, provided that the above copyright
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.\" notice appear in all copies and that both that copyright
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.\" notice and this permission notice appear in supporting
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.\" documentation, and that the name of M.I.T. not be used in
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.\" advertising or publicity pertaining to distribution of the
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.\" software without specific, written prior permission.
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.\" M.I.T. makes no representations about the suitability of
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.\" this software for any purpose. It is provided "as is"
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.\" without express or implied warranty.
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.\"
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.TH ARES_PARSE_A_REPLY 3 "25 July 1998"
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.SH NAME
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ares_parse_a_reply \- Parse a reply to a DNS query of type A
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.SH SYNOPSIS
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.nf
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.B #include <ares.h>
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.PP
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.B int ares_parse_a_reply(const unsigned char *\fIabuf\fP, int \fIalen\fP,
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.B struct hostent **\fIhost\fP,
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.B struct ares_addrttl *\fIaddrttls\fB, int *\fInaddrttls\fB);
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.fi
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.SH DESCRIPTION
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The
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.B ares_parse_a_reply
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function parses the response to a query of type A into a
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.BR "struct hostent"
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and/or an array of
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.BR "struct ares_addrttls" .
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The parameters
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.I abuf
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and
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.I alen
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give the contents of the response. The result is stored in allocated
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memory and a pointer to it stored into the variable pointed to by
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.IR host ,
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if host is nonnull.
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It is the caller's responsibility to free the resulting host structure
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using
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.BR ares_free_hostent (3)
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when it is no longer needed.
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.PP
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If
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.IR addrttls
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and
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.IR naddrttls
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are both nonnull,
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then up to *naddrttls
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.BR "struct ares_addrttl"
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records are stored in the array pointed to by addrttls,
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and then *naddrttls is set to the number of records so stored.
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Note that the memory for these records is supplied by the caller.
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.SH RETURN VALUES
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.B ares_parse_a_reply
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can return any of the following values:
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.TP 15
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.B ARES_SUCCESS
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The response was successfully parsed.
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.TP 15
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.B ARES_EBADRESP
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The response was malformatted.
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.TP 15
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.B ARES_ENODATA
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The response did not contain an answer to the query.
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.TP 15
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.B ARES_ENOMEM
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Memory was exhausted.
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.SH SEE ALSO
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.BR ares_gethostbyname (3),
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.BR ares_free_hostent (3)
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.SH AUTHOR
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Greg Hudson, MIT Information Systems
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.br
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Copyright 1998 by the Massachusetts Institute of Technology.
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