oracular (3) ares_parse_a_reply.3.gz

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)