ARES_PARSE_PTR_REPLY(3) Introduction to Library Functions
NAME
ares_parse_ptr_reply - Parse a reply to a DNS query of type PTR into
a hostent
SYNOPSIS
#include <ares.h>
int ares_parse_ptr_reply(const unsigned char *
abuf, int
alen,
const void *
addr, int
addrlen,
int
family, struct hostent **
host);
DESCRIPTION
The
ares_parse_ptr_reply function parses the response to a query of
type PTR into a
struct hostent. The parameters
abuf and
alen give
the contents of the response. The parameters
addr,
addrlen, and
family specify which address was queried for; they are not used to
verify the response, merely used to fill in the address of the
struct hostent. The resulting
struct hostent is stored in allocated memory
and a pointer to it stored into the variable pointed to by
host. It
is the caller's responsibility to free the resulting host structure
using
ares_free_hostent(3) when it is no longer needed.
RETURN VALUES
ares_parse_ptr_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_gethostbyaddr(3),
ares_free_hostent(3) 25 July 1998 ARES_PARSE_PTR_REPLY(3)
