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)

AUTHOR

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

                                                  25 July 1998                           ARES_PARSE_PTR_REPLY(3)