Copyright 1998 by the Massachusetts Institute of Technology.
SPDX-License-Identifier: MIT

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

#include <ares.h>

int ares_parse_a_reply(const unsigned char *abuf, int alen,
 struct hostent **host,
 struct ares_addrttl *addrttls, int *naddrttls);

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.

ares_parse_a_reply can return any of the following values:

15 ARES_SUCCESS The response was successfully parsed.

15 ARES_EBADRESP The response was malformatted.

15 ARES_ENODATA The response did not contain an answer to the query.

15 ARES_ENOMEM Memory was exhausted.

ares_gethostbyname (3), ares_free_hostent (3) Greg Hudson, MIT Information Systems

Andrew Selivanov <andrew.selivanov@gmail.com>

Copyright 1998 by the Massachusetts Institute of Technology.