ares_parse_mx_reply − Parse a reply to a DNS query of type MX
#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. |
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ARES_EBADRESP |
The response was malformatted. |
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ARES_ENODATA |
The response did not contain an answer to the query. |
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ARES_ENOMEM |
Memory was exhausted. |
This function was first introduced in c-ares version 1.7.2.
ares_query(3) ares_free_data(3)
Written by Jeremy Lal <[email protected]>