-
Notifications
You must be signed in to change notification settings - Fork 125
/
dns.c
81 lines (65 loc) · 2.05 KB
/
dns.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
/*
Copyright © 2011 MLstate
This file is part of OPA.
OPA is free software: you can redistribute it and/or modify it under the
terms of the GNU Affero General Public License, version 3, as published by
the Free Software Foundation.
OPA is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
more details.
You should have received a copy of the GNU Affero General Public License
along with OPA. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <caml/mlvalues.h>
#include <caml/memory.h>
#include <caml/alloc.h>
#include <caml/fail.h>
#include "../../libbase/mlstate_platform.h"
#ifdef MLSTATE_WINDOWS
#include <Windows.h>
#include <Windns.h>
CAMLprim value get_mx_dns(value v_domain)
{
CAMLparam1(v_domain);
CAMLlocal2(v_res, v_tuple);
PDNS_RECORD pDns = NULL;
if (DnsQuery_A(String_val(v_domain),
DNS_TYPE_MX,
DNS_QUERY_STANDARD,
NULL,
&pDns,
NULL) == NOERROR)
{
PDNS_RECORD cur = pDns;
int count = 0;
int i = 0;
for (cur = pDns; cur != NULL; cur = cur->pNext)
if (cur->wType == DNS_TYPE_MX) count++;
v_res = caml_alloc(count, 0);
for (cur = pDns; cur != NULL; cur = cur->pNext)
if (cur->wType == DNS_TYPE_MX)
{
value str = caml_copy_string(cur->Data.Mx.pNameExchange);
v_tuple = caml_alloc_small(2, 0);
printf("dns: %s\n", cur->Data.Mx.pNameExchange);
Field(v_tuple, 0) = str;
Field(v_tuple, 1) = Val_int(cur->Data.Mx.wPreference);
Store_field(v_res, i++, v_tuple);
}
DnsRecordListFree(pDns, DnsFreeRecordList);
CAMLreturn(v_res);
}
caml_failwith("No MX record found");
CAMLreturn(Val_unit);
}
#else
value error_cygwin(char* mess){
printf("Iocp : error_unix_or_cywin :%s",mess);
exit(1);
return Val_unit;
}
CAMLprim value get_mx_dns(value v_domain){ return error_cygwin("Dns : get_mx_dns"); }
#endif