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ARES_PARSE_A_REPLY(3) Library Functions Manual ARES_PARSE_A_REPLY(3)

NAME

ares_parse_a_reply - Parse a reply to a DNS query of type A

SYNOPSIS

#include <ares.h>
int ares_parse_a_reply(const unsigned char *abuf, int alen,
	struct hostent **host,
struct ares_addrttl *addrttls, int *naddrttls);

DESCRIPTION

The ares_parse_a_reply function parses the response to a query of type A into a struct hostent and/or an array of struct ares_addrttls. The parameters abuf and 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 host, if host is nonnull. It is the caller's responsibility to free the resulting host structure using ares_free_hostent(3) when it is no longer needed.
If addrttls and naddrttls are both nonnull, then up to *naddrttls struct ares_addrttl records are stored in the array pointed to by addrttls, and then *naddrttls is set to the number of records so stored. Note that the memory for these records is supplied by the caller.

RETURN VALUES

ares_parse_a_reply can return any of the following values:
ARES_SUCCESS
The response was successfully parsed.
ARES_EBADRESP
The response was malformatted.
ARES_ENODATA
The response did not contain an answer to the query.
ARES_ENOMEM
Memory was exhausted.

SEE ALSO

ares_gethostbyname(3), ares_free_hostent(3)

AUTHOR

Greg Hudson, MIT Information Systems
 
Copyright 1998 by the Massachusetts Institute of Technology.
25 July 1998