ARES_PARSE_A_REPLY(3) Introduction to Library Functions
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) 25 July 1998 ARES_PARSE_A_REPLY(3)
