DNSQuery.h

#import <Foundation/Foundation.h>
#include <ifaddrs.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <sys/socket.h>
#include <resolv.h>
#include <errno.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <dns_util.h>

/*
 * Type values for resources and queries
 */
#define T_A                 1           /* host address */
#define T_NS            2               /* authoritative server */
#define T_MD            3               /* mail destination */
#define T_MF            4               /* mail forwarder */
#define T_CNAME         5               /* canonical name */
#define T_SOA           6               /* start of authority zone */
#define T_MB            7               /* mailbox domain name */
#define T_MG            8               /* mail group member */
#define T_MR            9               /* mail rename name */
#define T_NULL          10              /* null resource record */
#define T_WKS           11              /* well known service */
#define T_PTR           12              /* domain name pointer */
#define T_HINFO         13              /* host information */
#define T_MINFO         14              /* mailbox information */
#define T_MX            15              /* mail routing information */
#define T_TXT           16              /* text strings */
#define T_RP            17              /* responsible person */
#define T_AFSDB         18              /* AFS cell database */
#define T_X25           19              /* X_25 calling address */
#define T_ISDN          20              /* ISDN calling address */
#define T_RT            21              /* router */
#define T_NSAP          22              /* NSAP address */
#define T_NSAP_PTR      23              /* reverse NSAP lookup (deprecated) */
#define T_SIG           24              /* security signature */
#define T_KEY           25              /* security key */
#define T_PX            26              /* X.400 mail mapping */
#define T_GPOS          27              /* geographical position (withdrawn) */
#define T_AAAA          28              /* IP6 Address */
#define T_LOC           29              /* Location Information */
/* non standard */
#define T_UINFO         100             /* user (finger) information */
#define T_UID           101             /* user ID */
#define T_GID           102             /* group ID */
#define T_UNSPEC        103             /* Unspecified format (binary data) */
/* Query type values which do not appear in resource records */
#define T_AXFR          252             /* transfer zone of authority */
#define T_MAILB         253             /* transfer mailbox records */
#define T_MAILA         254             /* transfer mail agent records */
#define T_ANY           255             /* wildcard match */

/*
 * Values for class field
 */

#define C_IN            1               /* the arpa internet */
#define C_CHAOS         3               /* for chaos net (MIT) */
#define C_HS            4               /* for Hesiod name server (MIT) (XXX) */
/* Query class values which do not appear in resource records */
#define C_ANY           255             /* wildcard match */


static const int kBufLen = 1500;

@interface DNSQuery : NSObject {
    
    
}

//- (NSString *) replacePostdata:(NSString *)postStr: (NSString *)user: (NSString *)pass;
- (NSString *) localIPAddress;
//takes an ip address and returns the hostname
//if hostname can't be found, returns @""
- (char *) _reverseDns: (const char*) arpaPoint;
- (NSString *) makeDNSLookupString: (NSString *) inString;
- (NSString *) reverseDNS : (NSString *) ipAddress;

@end