ares_free_hostent(3) [debian 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_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  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  addrt-
       tls, 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.

								   25 July 1998 					     ARES_PARSE_A_REPLY(3)