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@ -3,7 +3,7 @@ |
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* is for IP V4 CIDR notation, but prepared for V6: just |
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* add the necessary bits where the comments indicate. |
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* |
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* $Id: network.c,v 1.19 2000/03/07 23:01:43 momjian Exp $ |
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* $Id: network.c,v 1.20 2000/03/08 01:44:37 momjian Exp $ |
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* Jon Postel RIP 16 Oct 1998 |
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*/ |
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@ -18,7 +18,7 @@ |
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#include "postgres.h" |
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#include "utils/builtins.h" |
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static int v4bitncmp(unsigned int a1, unsigned int a2, int bits1, int bits2); |
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static int v4bitncmp(unsigned int a1, unsigned int a2, int bits); |
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/*
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* Access macros. Add IPV6 support. |
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@ -137,7 +137,7 @@ network_lt(inet *a1, inet *a2) |
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return FALSE; |
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if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET)) |
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{ |
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int order = v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a1), ip_bits(a2)); |
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int order = v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a2)); |
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return ((order < 0) || ((order == 0) && (ip_bits(a1) < ip_bits(a2)))); |
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} |
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@ -166,7 +166,7 @@ network_eq(inet *a1, inet *a2) |
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if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET)) |
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{ |
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return ((ip_bits(a1) == ip_bits(a2)) |
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&& (v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a1), ip_bits(a2)) == 0)); |
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&& (v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a1)) == 0)); |
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} |
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else |
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{ |
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@ -192,7 +192,7 @@ network_gt(inet *a1, inet *a2) |
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return FALSE; |
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if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET)) |
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{ |
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int order = v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a1), ip_bits(a2)); |
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int order = v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a2)); |
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return ((order > 0) || ((order == 0) && (ip_bits(a1) > ip_bits(a2)))); |
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} |
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@ -222,7 +222,7 @@ network_sub(inet *a1, inet *a2) |
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if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET)) |
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{ |
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return ((ip_bits(a1) > ip_bits(a2)) |
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&& (v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a1), ip_bits(a2)) == 0)); |
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&& (v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a2)) == 0)); |
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} |
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else |
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{ |
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@ -242,7 +242,7 @@ network_subeq(inet *a1, inet *a2) |
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if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET)) |
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{ |
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return ((ip_bits(a1) >= ip_bits(a2)) |
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&& (v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a1), ip_bits(a2)) == 0)); |
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&& (v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a2)) == 0)); |
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} |
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else |
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{ |
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@ -262,7 +262,7 @@ network_sup(inet *a1, inet *a2) |
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if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET)) |
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{ |
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return ((ip_bits(a1) < ip_bits(a2)) |
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&& (v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a1), ip_bits(a2)) == 0)); |
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&& (v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a1)) == 0)); |
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} |
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else |
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{ |
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@ -282,7 +282,7 @@ network_supeq(inet *a1, inet *a2) |
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if ((ip_family(a1) == AF_INET) && (ip_family(a2) == AF_INET)) |
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{ |
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return ((ip_bits(a1) <= ip_bits(a2)) |
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&& (v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a1), ip_bits(a2)) == 0)); |
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&& (v4bitncmp(ip_v4addr(a1), ip_v4addr(a2), ip_bits(a1)) == 0)); |
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} |
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else |
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{ |
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@ -476,16 +476,13 @@ network_netmask(inet *ip) |
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*/ |
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static int |
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v4bitncmp(unsigned int a1, unsigned int a2, int bits1, int bits2) |
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v4bitncmp(unsigned int a1, unsigned int a2, int bits) |
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{ |
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unsigned long mask = 0; |
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int i, bits; |
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bits=(bits1 < bits2) ? bits1 : bits2; |
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int i; |
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for (i = 0; i < bits; i++) |
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mask = (mask >> 1) | 0x80000000; |
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a1 = ntohl(a1); |
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a2 = ntohl(a2); |
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if ((a1 & mask) < (a2 & mask)) |
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