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Postgres FD Implementation
Commit ed9ca687 authored by Tom Lane's avatar Tom Lane
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Convert inet-related functions to new fmgr style. I have also taken it 

on myself to do something about the non-self-consistency of the inet
comparison functions.  The results are probably still semantically wrong
(inet and cidr should have different comparison semantics, I think)
but at least the boolean operators now agree with each other and with
the sort order of indexes on inet/cidr.
parent 61aca818
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Showing with 292 additions and 281 deletions
src/backend/utils/adt/mac.c
View file @ ed9ca687
/*
* PostgreSQL type definitions for MAC addresses.
*
* $Header: /cvsroot/pgsql/src/backend/utils/adt/mac.c,v 1.16 2000/07/06 05:48:11 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/mac.c,v 1.17 2000/08/03 23:07:46 tgl Exp $
*/
#include "postgres.h"
#include "utils/builtins.h"
#include "utils/inet.h"
/*
* macaddr is a pass-by-reference datatype.
* XXX this table of manufacturers is long out of date, and should never
* have been wired into the code in the first place.
*/
#define PG_GETARG_MACADDR_P(n) ((macaddr *) PG_GETARG_POINTER(n))
#define PG_RETURN_MACADDR_P(x) return PointerGetDatum(x)
typedef struct manufacturer
{
......@@ -145,18 +143,18 @@ static manufacturer manufacturers[] = {
*/
#define hibits(addr) \
((unsigned long)((addr->a<<16)|(addr->b<<8)|(addr->c)))
((unsigned long)(((addr)->a<<16)|((addr)->b<<8)|((addr)->c)))
#define lobits(addr) \
((unsigned long)((addr->d<<16)|(addr->e<<8)|(addr->f)))
((unsigned long)(((addr)->d<<16)|((addr)->e<<8)|((addr)->f)))
/*
* MAC address reader. Accepts several common notations.
*/
macaddr *
macaddr_in(char *str)
Datum
macaddr_in(PG_FUNCTION_ARGS)
{
char *str = PG_GETARG_CSTRING(0);
int a,
b,
c,
......@@ -201,21 +199,18 @@ macaddr_in(char *str)
result->e = e;
result->f = f;
return (result);
PG_RETURN_MACADDR_P(result);
}
/*
* MAC address output function. Fixed format.
*/
char *
macaddr_out(macaddr *addr)
Datum
macaddr_out(PG_FUNCTION_ARGS)
{
macaddr *addr = PG_GETARG_MACADDR_P(0);
char *result;
if (addr == NULL)
return (NULL);
result = (char *) palloc(32);
if ((hibits(addr) > 0) || (lobits(addr) > 0))
......@@ -225,84 +220,95 @@ macaddr_out(macaddr *addr)
}
else
{
result[0] = 0; /* special case for missing address */
result[0] = '\0'; /* special case for missing address */
}
return (result);
PG_RETURN_CSTRING(result);
}
/*
* Boolean tests.
* Comparison function for sorting:
*/
bool
macaddr_lt(macaddr *a1, macaddr *a2)
static int32
macaddr_cmp_internal(macaddr *a1, macaddr *a2)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
return ((hibits(a1) < hibits(a2)) ||
((hibits(a1) == hibits(a2)) && lobits(a1) < lobits(a2)));
if (hibits(a1) < hibits(a2))
return -1;
else if (hibits(a1) > hibits(a2))
return 1;
else if (lobits(a1) < lobits(a2))
return -1;
else if (lobits(a1) > lobits(a2))
return 1;
else
return 0;
}
bool
macaddr_le(macaddr *a1, macaddr *a2)
Datum
macaddr_cmp(PG_FUNCTION_ARGS)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
return ((hibits(a1) < hibits(a2)) ||
((hibits(a1) == hibits(a2)) && lobits(a1) <= lobits(a2)));
macaddr *a1 = PG_GETARG_MACADDR_P(0);
macaddr *a2 = PG_GETARG_MACADDR_P(1);
PG_RETURN_INT32(macaddr_cmp_internal(a1, a2));
}
bool
macaddr_eq(macaddr *a1, macaddr *a2)
/*
* Boolean comparisons.
*/
Datum
macaddr_lt(PG_FUNCTION_ARGS)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
return ((hibits(a1) == hibits(a2)) && (lobits(a1) == lobits(a2)));
macaddr *a1 = PG_GETARG_MACADDR_P(0);
macaddr *a2 = PG_GETARG_MACADDR_P(1);
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) < 0);
}
bool
macaddr_ge(macaddr *a1, macaddr *a2)
Datum
macaddr_le(PG_FUNCTION_ARGS)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
return ((hibits(a1) > hibits(a2)) ||
((hibits(a1) == hibits(a2)) && lobits(a1) >= lobits(a2)));
macaddr *a1 = PG_GETARG_MACADDR_P(0);
macaddr *a2 = PG_GETARG_MACADDR_P(1);
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) <= 0);
}
bool
macaddr_gt(macaddr *a1, macaddr *a2)
Datum
macaddr_eq(PG_FUNCTION_ARGS)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
return ((hibits(a1) > hibits(a2)) ||
((hibits(a1) == hibits(a2)) && lobits(a1) > lobits(a2)));
macaddr *a1 = PG_GETARG_MACADDR_P(0);
macaddr *a2 = PG_GETARG_MACADDR_P(1);
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) == 0);
}
bool
macaddr_ne(macaddr *a1, macaddr *a2)
Datum
macaddr_ge(PG_FUNCTION_ARGS)
{
if (!PointerIsValid(a1) || !PointerIsValid(a2))
return FALSE;
return ((hibits(a1) != hibits(a2)) || (lobits(a1) != lobits(a2)));
macaddr *a1 = PG_GETARG_MACADDR_P(0);
macaddr *a2 = PG_GETARG_MACADDR_P(1);
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) >= 0);
}
/*
* Comparison function for sorting:
*/
Datum
macaddr_gt(PG_FUNCTION_ARGS)
{
macaddr *a1 = PG_GETARG_MACADDR_P(0);
macaddr *a2 = PG_GETARG_MACADDR_P(1);
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) > 0);
}
int4
macaddr_cmp(macaddr *a1, macaddr *a2)
Datum
macaddr_ne(PG_FUNCTION_ARGS)
{
if (hibits(a1) < hibits(a2))
return -1;
else if (hibits(a1) > hibits(a2))
return 1;
else if (lobits(a1) < lobits(a2))
return -1;
else if (lobits(a1) > lobits(a2))
return 1;
else
return 0;
macaddr *a1 = PG_GETARG_MACADDR_P(0);
macaddr *a2 = PG_GETARG_MACADDR_P(1);
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) != 0);
}
/*
......
src/backend/utils/adt/network.c
View file @ ed9ca687
This diff is collapsed.
src/include/catalog/pg_proc.h
View file @ ed9ca687
......@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pg_proc.h,v 1.156 2000/08/03 16:34:31 tgl Exp $
* $Id: pg_proc.h,v 1.157 2000/08/03 23:07:46 tgl Exp $
*
* NOTES
* The script catalog/genbki.sh reads this file and generates .bki
......@@ -2174,68 +2174,68 @@ DATA(insert OID = 1688 ( varbitsubstr PGUID 11 f t t t 2 f 1562 "1562 1562" 10
DESCR("bitwise field");
/* for mac type support */
DATA(insert OID = 436 ( macaddr_in PGUID 11 f t t t 1 f 829 "0" 100 0 0 100 macaddr_in - ));
DATA(insert OID = 436 ( macaddr_in PGUID 12 f t t t 1 f 829 "0" 100 0 0 100 macaddr_in - ));
DESCR("(internal)");
DATA(insert OID = 437 ( macaddr_out PGUID 11 f t t t 1 f 23 "0" 100 0 0 100 macaddr_out - ));
DATA(insert OID = 437 ( macaddr_out PGUID 12 f t t t 1 f 23 "0" 100 0 0 100 macaddr_out - ));
DESCR("(internal)");
DATA(insert OID = 830 ( macaddr_eq PGUID 11 f t t t 2 f 16 "829 829" 100 0 0 100 macaddr_eq - ));
DATA(insert OID = 830 ( macaddr_eq PGUID 12 f t t t 2 f 16 "829 829" 100 0 0 100 macaddr_eq - ));
DESCR("equal");
DATA(insert OID = 831 ( macaddr_lt PGUID 11 f t t t 2 f 16 "829 829" 100 0 0 100 macaddr_lt - ));
DATA(insert OID = 831 ( macaddr_lt PGUID 12 f t t t 2 f 16 "829 829" 100 0 0 100 macaddr_lt - ));
DESCR("less-than");
DATA(insert OID = 832 ( macaddr_le PGUID 11 f t t t 2 f 16 "829 829" 100 0 0 100 macaddr_le - ));
DATA(insert OID = 832 ( macaddr_le PGUID 12 f t t t 2 f 16 "829 829" 100 0 0 100 macaddr_le - ));
DESCR("less-than-or-equal");
DATA(insert OID = 833 ( macaddr_gt PGUID 11 f t t t 2 f 16 "829 829" 100 0 0 100 macaddr_gt - ));
DATA(insert OID = 833 ( macaddr_gt PGUID 12 f t t t 2 f 16 "829 829" 100 0 0 100 macaddr_gt - ));
DESCR("greater-than");
DATA(insert OID = 834 ( macaddr_ge PGUID 11 f t t t 2 f 16 "829 829" 100 0 0 100 macaddr_ge - ));
DATA(insert OID = 834 ( macaddr_ge PGUID 12 f t t t 2 f 16 "829 829" 100 0 0 100 macaddr_ge - ));
DESCR("greater-than-or-equal");
DATA(insert OID = 835 ( macaddr_ne PGUID 11 f t t t 2 f 16 "829 829" 100 0 0 100 macaddr_ne - ));
DATA(insert OID = 835 ( macaddr_ne PGUID 12 f t t t 2 f 16 "829 829" 100 0 0 100 macaddr_ne - ));
DESCR("not equal");
DATA(insert OID = 836 ( macaddr_cmp PGUID 11 f t t t 2 f 23 "829 829" 100 0 0 100 macaddr_cmp - ));
DATA(insert OID = 836 ( macaddr_cmp PGUID 12 f t t t 2 f 23 "829 829" 100 0 0 100 macaddr_cmp - ));
DESCR("less-equal-greater");
DATA(insert OID = 837 ( macaddr_manuf PGUID 12 f t t t 1 f 25 "829" 100 0 0 100 macaddr_manuf - ));
DESCR("MAC manufacturer");
/* for inet type support */
DATA(insert OID = 910 ( inet_in PGUID 11 f t t t 1 f 869 "0" 100 0 0 100 inet_in - ));
DATA(insert OID = 910 ( inet_in PGUID 12 f t t t 1 f 869 "0" 100 0 0 100 inet_in - ));
DESCR("(internal)");
DATA(insert OID = 911 ( inet_out PGUID 11 f t t t 1 f 23 "0" 100 0 0 100 inet_out - ));
DATA(insert OID = 911 ( inet_out PGUID 12 f t t t 1 f 23 "0" 100 0 0 100 inet_out - ));
DESCR("(internal)");
/* for cidr type support */
DATA(insert OID = 1267 ( cidr_in PGUID 11 f t t t 1 f 650 "0" 100 0 0 100 cidr_in - ));
DATA(insert OID = 1267 ( cidr_in PGUID 12 f t t t 1 f 650 "0" 100 0 0 100 cidr_in - ));
DESCR("(internal)");
DATA(insert OID = 1427 ( cidr_out PGUID 11 f t t t 1 f 23 "0" 100 0 0 100 cidr_out - ));
DATA(insert OID = 1427 ( cidr_out PGUID 12 f t t t 1 f 23 "0" 100 0 0 100 cidr_out - ));
DESCR("(internal)");
/* these are used for both inet and cidr */
DATA(insert OID = 920 ( network_eq PGUID 11 f t t t 2 f 16 "869 869" 100 0 0 100 network_eq - ));
DATA(insert OID = 920 ( network_eq PGUID 12 f t t t 2 f 16 "869 869" 100 0 0 100 network_eq - ));
DESCR("equal");
DATA(insert OID = 921 ( network_lt PGUID 11 f t t t 2 f 16 "869 869" 100 0 0 100 network_lt - ));
DATA(insert OID = 921 ( network_lt PGUID 12 f t t t 2 f 16 "869 869" 100 0 0 100 network_lt - ));
DESCR("less-than");
DATA(insert OID = 922 ( network_le PGUID 11 f t t t 2 f 16 "869 869" 100 0 0 100 network_le - ));
DATA(insert OID = 922 ( network_le PGUID 12 f t t t 2 f 16 "869 869" 100 0 0 100 network_le - ));
DESCR("less-than-or-equal");
DATA(insert OID = 923 ( network_gt PGUID 11 f t t t 2 f 16 "869 869" 100 0 0 100 network_gt - ));
DATA(insert OID = 923 ( network_gt PGUID 12 f t t t 2 f 16 "869 869" 100 0 0 100 network_gt - ));
DESCR("greater-than");
DATA(insert OID = 924 ( network_ge PGUID 11 f t t t 2 f 16 "869 869" 100 0 0 100 network_ge - ));
DATA(insert OID = 924 ( network_ge PGUID 12 f t t t 2 f 16 "869 869" 100 0 0 100 network_ge - ));
DESCR("greater-than-or-equal");
DATA(insert OID = 925 ( network_ne PGUID 11 f t t t 2 f 16 "869 869" 100 0 0 100 network_ne - ));
DATA(insert OID = 925 ( network_ne PGUID 12 f t t t 2 f 16 "869 869" 100 0 0 100 network_ne - ));
DESCR("not equal");
DATA(insert OID = 926 ( network_cmp PGUID 11 f t t t 2 f 23 "869 869" 100 0 0 100 network_cmp - ));
DATA(insert OID = 926 ( network_cmp PGUID 12 f t t t 2 f 23 "869 869" 100 0 0 100 network_cmp - ));
DESCR("less-equal-greater");
DATA(insert OID = 927 ( network_sub PGUID 11 f t t t 2 f 16 "869 869" 100 0 0 100 network_sub - ));
DATA(insert OID = 927 ( network_sub PGUID 12 f t t t 2 f 16 "869 869" 100 0 0 100 network_sub - ));
DESCR("is-subnet");
DATA(insert OID = 928 ( network_subeq PGUID 11 f t t t 2 f 16 "869 869" 100 0 0 100 network_subeq - ));
DATA(insert OID = 928 ( network_subeq PGUID 12 f t t t 2 f 16 "869 869" 100 0 0 100 network_subeq - ));
DESCR("is-subnet-or-equal");
DATA(insert OID = 929 ( network_sup PGUID 11 f t t t 2 f 16 "869 869" 100 0 0 100 network_sup - ));
DATA(insert OID = 929 ( network_sup PGUID 12 f t t t 2 f 16 "869 869" 100 0 0 100 network_sup - ));
DESCR("is-supernet");
DATA(insert OID = 930 ( network_supeq PGUID 11 f t t t 2 f 16 "869 869" 100 0 0 100 network_supeq - ));
DATA(insert OID = 930 ( network_supeq PGUID 12 f t t t 2 f 16 "869 869" 100 0 0 100 network_supeq - ));
DESCR("is-supernet-or-equal");
/* inet/cidr versions */
DATA(insert OID = 696 ( netmask PGUID 12 f t t t 1 f 25 "869" 100 0 0 100 network_netmask - ));
DESCR("netmask of address");
DATA(insert OID = 697 ( masklen PGUID 11 f t t t 1 f 23 "869" 100 0 0 100 network_masklen - ));
DATA(insert OID = 697 ( masklen PGUID 12 f t t t 1 f 23 "869" 100 0 0 100 network_masklen - ));
DESCR("netmask length");
DATA(insert OID = 698 ( broadcast PGUID 12 f t t t 1 f 25 "869" 100 0 0 100 network_broadcast - ));
DESCR("broadcast address");
......
src/include/utils/builtins.h
View file @ ed9ca687
......@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: builtins.h,v 1.129 2000/08/03 16:34:50 tgl Exp $
* $Id: builtins.h,v 1.130 2000/08/03 23:07:51 tgl Exp $
*
*-------------------------------------------------------------------------
*/
......@@ -16,7 +16,6 @@
#include "nodes/relation.h" /* for amcostestimate parameters */
#include "storage/itemptr.h"
#include "utils/inet.h"
#include "utils/numeric.h"
/*
......@@ -436,7 +435,6 @@ extern Datum textlike(PG_FUNCTION_ARGS);
extern Datum textnlike(PG_FUNCTION_ARGS);
/* oracle_compat.c */
extern Datum lower(PG_FUNCTION_ARGS);
extern Datum upper(PG_FUNCTION_ARGS);
extern Datum initcap(PG_FUNCTION_ARGS);
......@@ -450,48 +448,48 @@ extern Datum ichar(PG_FUNCTION_ARGS);
extern Datum repeat(PG_FUNCTION_ARGS);
extern Datum ascii(PG_FUNCTION_ARGS);
/* acl.c */
/* inet_net_ntop.c */
extern char *inet_net_ntop(int af, const void *src, int bits, char *dst, size_t size);
extern char *inet_cidr_ntop(int af, const void *src, int bits, char *dst, size_t size);
extern char *inet_net_ntop(int af, const void *src, int bits,
char *dst, size_t size);
extern char *inet_cidr_ntop(int af, const void *src, int bits,
char *dst, size_t size);
/* inet_net_pton.c */
extern int inet_net_pton(int af, const char *src, void *dst, size_t size);
extern int inet_net_pton(int af, const char *src,
void *dst, size_t size);
/* network.c */
extern inet *inet_in(char *str);
extern char *inet_out(inet *addr);
extern inet *cidr_in(char *str);
extern char *cidr_out(inet *addr);
extern bool network_lt(inet *a1, inet *a2);
extern bool network_le(inet *a1, inet *a2);
extern bool network_eq(inet *a1, inet *a2);
extern bool network_ge(inet *a1, inet *a2);
extern bool network_gt(inet *a1, inet *a2);
extern bool network_ne(inet *a1, inet *a2);
extern bool network_sub(inet *a1, inet *a2);
extern bool network_subeq(inet *a1, inet *a2);
extern bool network_sup(inet *a1, inet *a2);
extern bool network_supeq(inet *a1, inet *a2);
extern int4 network_cmp(inet *a1, inet *a2);
extern Datum inet_in(PG_FUNCTION_ARGS);
extern Datum inet_out(PG_FUNCTION_ARGS);
extern Datum cidr_in(PG_FUNCTION_ARGS);
extern Datum cidr_out(PG_FUNCTION_ARGS);
extern Datum network_cmp(PG_FUNCTION_ARGS);
extern Datum network_lt(PG_FUNCTION_ARGS);
extern Datum network_le(PG_FUNCTION_ARGS);
extern Datum network_eq(PG_FUNCTION_ARGS);
extern Datum network_ge(PG_FUNCTION_ARGS);
extern Datum network_gt(PG_FUNCTION_ARGS);
extern Datum network_ne(PG_FUNCTION_ARGS);
extern Datum network_sub(PG_FUNCTION_ARGS);
extern Datum network_subeq(PG_FUNCTION_ARGS);
extern Datum network_sup(PG_FUNCTION_ARGS);
extern Datum network_supeq(PG_FUNCTION_ARGS);
extern Datum network_network(PG_FUNCTION_ARGS);
extern Datum network_netmask(PG_FUNCTION_ARGS);
extern int4 network_masklen(inet *addr);
extern Datum network_masklen(PG_FUNCTION_ARGS);
extern Datum network_broadcast(PG_FUNCTION_ARGS);
extern Datum network_host(PG_FUNCTION_ARGS);
/* mac.c */
extern macaddr *macaddr_in(char *str);
extern char *macaddr_out(macaddr *addr);
extern bool macaddr_lt(macaddr *a1, macaddr *a2);
extern bool macaddr_le(macaddr *a1, macaddr *a2);
extern bool macaddr_eq(macaddr *a1, macaddr *a2);
extern bool macaddr_ge(macaddr *a1, macaddr *a2);
extern bool macaddr_gt(macaddr *a1, macaddr *a2);
extern bool macaddr_ne(macaddr *a1, macaddr *a2);
extern int4 macaddr_cmp(macaddr *a1, macaddr *a2);
extern Datum macaddr_in(PG_FUNCTION_ARGS);
extern Datum macaddr_out(PG_FUNCTION_ARGS);
extern Datum macaddr_cmp(PG_FUNCTION_ARGS);
extern Datum macaddr_lt(PG_FUNCTION_ARGS);
extern Datum macaddr_le(PG_FUNCTION_ARGS);
extern Datum macaddr_eq(PG_FUNCTION_ARGS);
extern Datum macaddr_ge(PG_FUNCTION_ARGS);
extern Datum macaddr_gt(PG_FUNCTION_ARGS);
extern Datum macaddr_ne(PG_FUNCTION_ARGS);
extern Datum macaddr_manuf(PG_FUNCTION_ARGS);
/* numeric.c */
......
src/include/utils/inet.h
View file @ ed9ca687
......@@ -7,17 +7,17 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: inet.h,v 1.7 2000/07/06 05:48:31 tgl Exp $
* $Id: inet.h,v 1.8 2000/08/03 23:07:51 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef MAC_H
#define MAC_H
#ifndef INET_H
#define INET_H
/*
* This is the internal storage format for IP addresses:
* This is the internal storage format for IP addresses
* (both INET and CIDR datatypes):
*/
typedef struct
{
unsigned char family;
......@@ -30,8 +30,17 @@ typedef struct
} addr;
} inet_struct;
/*
* Both INET and CIDR addresses are represented within Postgres as varlena
* objects, ie, there is a varlena header (basically a length word) in front
* of the struct type depicted above.
*
* Although these types are variable-length, the maximum length
* is pretty short, so we make no provision for TOASTing them.
*/
typedef struct varlena inet;
/*
* This is the internal storage format for MAC addresses:
*/
......@@ -45,4 +54,18 @@ typedef struct macaddr
unsigned char f;
} macaddr;
#endif /* MAC_H */
/*
* fmgr interface macros
*/
#define DatumGetInetP(X) ((inet *) DatumGetPointer(X))
#define InetPGetDatum(X) PointerGetDatum(X)
#define PG_GETARG_INET_P(n) DatumGetInetP(PG_GETARG_DATUM(n))
#define PG_RETURN_INET_P(x) return InetPGetDatum(x)
/* macaddr is a fixed-length pass-by-reference datatype */
#define DatumGetMacaddrP(X) ((macaddr *) DatumGetPointer(X))
#define MacaddrPGetDatum(X) PointerGetDatum(X)
#define PG_GETARG_MACADDR_P(n) DatumGetMacaddrP(PG_GETARG_DATUM(n))
#define PG_RETURN_MACADDR_P(x) return MacaddrPGetDatum(x)
#endif /* INET_H */
src/test/regress/expected/inet.out
View file @ ed9ca687
......@@ -128,7 +128,7 @@ SELECT '' AS ten, i, c,
| 192.168.1.226/24 | 192.168.1/24 | f | t | t | t | f | f | f | t | f | t
| 192.168.1.226 | 192.168.1/24 | f | f | f | t | t | t | t | t | f | f
| 10.1.2.3/8 | 10/8 | f | t | t | t | f | f | f | t | f | t
| 10.1.2.3/8 | 10.0.0.0/32 | f | f | f | t | t | t | f | f | t | t
| 10.1.2.3/8 | 10.0.0.0/32 | t | t | f | f | f | t | f | f | t | t
| 10.1.2.3 | 10.1.2.3/32 | f | t | t | t | f | f | f | t | f | t
| 10.1.2.3/24 | 10.1.2/24 | f | t | t | t | f | f | f | t | f | t
| 10.1.2.3/16 | 10.1/16 | f | t | t | t | f | f | f | t | f | t
......
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