/usr/include/spf2/spf_dns_null.h is in libspf2-dev 1.2.10-7build2.
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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  | /* 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of either:
 * 
 *   a) The GNU Lesser General Public License as published by the Free
 *      Software Foundation; either version 2.1, or (at your option) any
 *      later version,
 * 
 *   OR
 * 
 *   b) The two-clause BSD license.
 *
 * These licenses can be found with the distribution in the file LICENSES
 */
#ifndef INC_SPF_DNS_NULL
#define INC_SPF_DNS_NULL
/* For an overview of the DNS layer system, see spf_dns.h */
/* The null DNS layer is really just a minimal DNS layer.  It is
 * useful when you don't want to do any real DNS lookups, or when you
 * want to be able to get debugging information about the requests
 * flowing between DNS layers.
 *
 * Multiple null DNS layers can be created, which can be useful for
 * debugging purposes.
 */
/*
 * These routines take care of creating/destroying/etc. the objects
 * that hold the DNS layer configuration.  spfdcid objects contain
 * malloc'ed data, so they must be destroyed when you are finished
 * with them, or you will leak memory. 
 */
/*
 * if debugging is enabled, information about the DNS queries sent to
 * the lower DNS layer, and the results returned from that layer will
 * be displayed.
 *
 * The "name" will be used when displaying debugging information so
 * that you can tell which location in the stack of DNS layers
 * generated the output.
 */
 
SPF_dns_server_t	*SPF_dns_null_new( SPF_dns_server_t *layer_below,
				const char *name, int debug);
#endif
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