ares_parse_mx_reply - Man Page

#include <ares.h>

int ares_parse_mx_reply(const unsigned char* abuf, int alen,
                       struct ares_mx_reply** mx_out);

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

The structure ares_mx_reply contains the following fields:

struct ares_mx_reply {
    struct ares_mx_reply *next;
    char *host;
    unsigned short priority;
};

ares_parse_mx_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.

This function was first introduced in c-ares version 1.7.2.

ares_query(3) ares_free_data(3)

ares_free_data(3).