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Updated: Wednesday, July 27, 2022
 
 

ares_parse_ptr_reply (3)

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

ARES_PARSE_PTR_REPLY(3)    Library Functions Manual    ARES_PARSE_PTR_REPLY(3)



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.


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


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

SEE ALSO
       ares_gethostbyaddr(3), ares_free_hostent(3)

AUTHOR
       Greg Hudson, MIT Information Systems
       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_PTR_REPLY(3)