ares_parse_a_reply(3)

ARES_PARSE_A_REPLY(3)  C LIBRARY FUNCTIONS  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
          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 respon-
     sibility  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.

                    Last change: 25 July 1998                   1