Go to main content

man pages section 3: Library Interfaces and Headers

Exit Print View

Updated: Wednesday, July 27, 2022
 
 

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 alen,
struct hostent **host,
struct ares_addrttl *addrttls, int *naddrttls);

Description

ARES_PARSE_A_REPLY(3)      Library Functions Manual      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 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 vari-
       able  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.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | library/libcares |
       +---------------+------------------+
       |Stability      | Volatile         |
       +---------------+------------------+

SEE ALSO
       ares_gethostbyname(3), ares_free_hostent(3)

AUTHOR
       Greg Hudson, MIT Information Systems
       Andrew Selivanov <andrew.selivanov@gmail.com>
       Copyright 1998 by the Massachusetts Institute of Technology.



NOTES
       Source  code  for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       This     software     was    built    from    source    available    at
       https://github.com/oracle/solaris-userland.   The  original   community
       source    was   downloaded   from    https://c-ares.haxx.se/download/c-
       ares-1.17.2.tar.gz.

       Further information about this software can be found on the open source
       community website at https://c-ares.haxx.se/.



                                 25 July 1998            ARES_PARSE_A_REPLY(3)