ARES_PARSE_MX_REPLY
Section: C Library Functions (3)
Updated: 4 August 2009
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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
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.
SEE ALSO
ares_query(3)
ares_free_data(3)
AUTHOR
Written by Jeremy Lal <
kapouer@melix.org>