ARES_PARSE_TXT_REPLY

Section: C Library Functions (3)
Updated: 27 October 2009
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NAME

ares_parse_txt_reply - Parse a reply to a DNS query of type TXT

SYNOPSIS

#include <ares.h>

int ares_parse_txt_reply(const unsigned char* abuf, int alen,
struct ares_txt_reply **txt_out);

DESCRIPTION

The ares_parse_txt_reply function parses the response to a query of type TXT into a linked list (one element per sub-string) of struct ares_txt_reply 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 txt_out. It is the caller's responsibility to free the resulting txt_out structure when it is no longer needed using the function ares_free_data

The structure ares_txt_reply contains the following fields:

struct ares_txt_reply {
  struct ares_txt_reply  *next;
  unsigned int  length;
  unsigned char *txt;
};

RETURN VALUES

ares_parse_txt_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.

AVAILABILITY

This function was first introduced in c-ares version 1.7.0.

AUTHOR

Written by Jakub Hrozek <jhrozek@redhat.com>, on behalf of Red Hat, Inc http://www.redhat.com