ares_free_hostent(3) [centos man page]

ARES_FREE_HOSTENT(3)					     Library Functions Manual					      ARES_FREE_HOSTENT(3)

NAME

       ares_free_hostent - Free host structure allocated by ares functions

SYNOPSIS

       #include <ares.h>

       void ares_free_hostent(struct hostent *host)

DESCRIPTION

       The ares_free_hostent function frees a struct hostent allocated by one of the functions ares_parse_a_reply(3), ares_parse_aaaa_reply(3), or
       ares_parse_ptr_reply(3).

NOTES

       It is not necessary (and is not correct) to free the  host  structure  passed  to  the  callback  functions  for  ares_gethostbyname(3)	or
       ares_gethostbyaddr(3). c-ares will automatically free such host structures when the callback returns.

SEE ALSO

       ares_parse_a_reply(3), ares_parse_aaaa_reply(3), ares_parse_ptr_reply(3), ares_parse_ns_reply(3)

AUTHOR

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

								   23 July 1998 					      ARES_FREE_HOSTENT(3)

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.

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)