NAME
ares_parse_mx_reply - Parse a reply to a DNS query of type MX
SYNOPSIS
#include <ares.h>
int
ares_parse_mx_reply(const unsigned char* abuf, int
alen,
struct ares_mx_reply** mx_out);
DESCRIPTION
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;
};
RETURN VALUES
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. |
AVAILABILITY
This function was first introduced in c-ares version 1.7.2.