Copyright 1998 by the Massachusetts Institute of Technology.
SPDX-License-Identifier: MIT

ares_parse_naptr_reply - Parse a reply to a DNS query of type NAPTR

#include <ares.h>

int ares_parse_naptr_reply(const unsigned char* abuf, int alen,
 struct ares_naptr_reply** naptr_out);

The ares_parse_naptr_reply function parses the response to a query of type NAPTR into a linked list of struct ares_naptr_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 naptr_out . It is the caller's responsibility to free the resulting naptr_out structure when it is no longer needed using the function ares_free_data(3).

The structure ares_naptr_reply contains the following fields:

struct ares_naptr_reply {
 struct ares_naptr_reply *next;
 unsigned char *flags;
 unsigned char *service;
 unsigned char *regexp;
 char *replacement;
 unsigned short order;
 unsigned short preference;
};

ares_parse_naptr_reply can return any of the following values:

15 ARES_SUCCESS The response was successfully parsed.

15 ARES_EBADRESP The response was malformatted.

15 ARES_ENODATA The response did not contain an answer to the query.

15 ARES_ENOMEM Memory was exhausted.

This function was first introduced in c-ares version 1.7.6. ares_query (3) ares_free_data (3) Written by Jakub Hrozek <jhrozek@redhat.com>, on behalf of Red Hat, Inc http://www.redhat.com