libspf2 1.2.11
spf_dns_null.h
Go to the documentation of this file.
1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of either:
4 *
5 * a) The GNU Lesser General Public License as published by the Free
6 * Software Foundation; either version 2.1, or (at your option) any
7 * later version,
8 *
9 * OR
10 *
11 * b) The two-clause BSD license.
12 *
13 * These licenses can be found with the distribution in the file LICENSES
14 */
15
16
17
18
19#ifndef INC_SPF_DNS_NULL
20#define INC_SPF_DNS_NULL
21
22/* For an overview of the DNS layer system, see spf_dns.h */
23
24/* The null DNS layer is really just a minimal DNS layer. It is
25 * useful when you don't want to do any real DNS lookups, or when you
26 * want to be able to get debugging information about the requests
27 * flowing between DNS layers.
28 *
29 * Multiple null DNS layers can be created, which can be useful for
30 * debugging purposes.
31 */
32
33
34/*
35 * These routines take care of creating/destroying/etc. the objects
36 * that hold the DNS layer configuration. spfdcid objects contain
37 * malloc'ed data, so they must be destroyed when you are finished
38 * with them, or you will leak memory.
39 */
40
41/*
42 * if debugging is enabled, information about the DNS queries sent to
43 * the lower DNS layer, and the results returned from that layer will
44 * be displayed.
45 *
46 * The "name" will be used when displaying debugging information so
47 * that you can tell which location in the stack of DNS layers
48 * generated the output.
49 */
50
51SPF_dns_server_t *SPF_dns_null_new( SPF_dns_server_t *layer_below,
52 const char *name, int debug);
53
54
55#endif
SPF_dns_server_t * SPF_dns_null_new(SPF_dns_server_t *layer_below, const char *name, int debug)
#define debug