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Copyright (C) 2003-2004 Douglas Thain and the University of Wisconsin
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Copyright (C) 2005- The University of Notre Dame
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This software is distributed under the GNU General Public License.
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See the file COPYING for details.
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#ifndef DOMAIN_NAME_CACHE_H
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#define DOMAIN_NAME_CACHE_H
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#include "domain_name.h"
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/** @file domain_name_cache.h
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Look up domain names and addresses quickly.
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These routines resolve domain names using an internal cache,
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allowing for much faster response time than the plain @ref domain_name.h routines.
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/** Determine the caller's primary domain name.
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This function uses a variety of sources, including uname, the local hosts file,
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and the domain name system, to determine the caller's primary domain name.
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If this function returns an unexpected name, try running with the @ref debug flags
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set to @ref D_DNS to observe exactly who th ename was determined.
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@param name Pointer to buffer where name will be stored.
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@returns One on success, zero on failure.
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int domain_name_cache_guess( char *name );
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/** Determine the caller's local machine name.
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This function uses the built in facility to determine the
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local host name of the machine, without involving DNS.
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If the local name has been configured to look like a domain name,
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only the first segment of the name will be returned.
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@param name Pointer to buffer where name will be stored.
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@returns One on success, zero on failure.
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int domain_name_cache_guess_short( char *name );
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/** Resolve a domain name to an IP address with caching.
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@param name A string containing a domain name like "www.google.com".
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@param addr A string where the IP address will be written.
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@return One on success, zero on failure.
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int domain_name_cache_lookup( const char *name, char *addr );
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/** Resolve an IP address to a domain name with caching.
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@param addr A string containing an IP address like "202.5.129.1"
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@param name A string where the domain name will be written.
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@return One on success, zero on failure.
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int domain_name_cache_lookup_reverse( const char *addr, char *name );
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/** Find the canonical name of a host.
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@param name_or_addr A string containing a domain name or ip address.
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@param cname A string where the canonical domain name will be written.
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@return One on success, zero on failure.
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int domain_name_cache_canonical( const char *name_or_addr, char *cname );
added
removed
dttools/src/domain_name_cache.h
