Re: contrib/xinetops for 8.1 "patch"

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Stephen R(dot) van den Berg" <srb(at)cuci(dot)nl>, pgsql-patches(at)postgresql(dot)org
Subject: Re: contrib/xinetops for 8.1 "patch"
Date: 2006-02-11 03:32:57
Message-ID: 200602110332.k1B3WvK19679@candle.pha.pa.us
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Patch applied. Thanks.

---------------------------------------------------------------------------

Bruce Momjian wrote:
> Tom Lane wrote:
> > Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > > A larger problem is this:
> >
> > > test=> SELECT '255.255.255.0'::inet - '1.1.1.1'::inet;
> > > ?column?
> > > -----------
> > > -16843265
> > > (1 row)
> >
> > > Should subtraction return int8?
> >
> > Probably, and for that matter the addition operators should take int8;
> > on IPV6 data even that's not really wide enough.
> >
> > > We don't have an unsigned data type. Of course we also have this
> > > excitement:
> >
> > > test=> SELECT '255.255.255.0'::inet + 1000000;
> > > ?column?
> > > ------------
> > > 0.15.65.64
> > > (1 row)
> >
> > > so we underflow and overflow cleanly. Not great, but it works.
> >
> > "Cleanly" isn't the adjective I'd use for that. There should be an
> > overflow error.
>
> OK, changed to int8, and overflow checks added.
>
> --
> Bruce Momjian | http://candle.pha.pa.us
> pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
> + If your life is a hard drive, | 13 Roberts Road
> + Christ can be your backup. | Newtown Square, Pennsylvania 19073

> Index: doc/src/sgml/func.sgml
> ===================================================================
> RCS file: /cvsroot/pgsql/doc/src/sgml/func.sgml,v
> retrieving revision 1.303
> diff -c -c -r1.303 func.sgml
> *** doc/src/sgml/func.sgml 26 Jan 2006 02:35:48 -0000 1.303
> --- doc/src/sgml/func.sgml 10 Feb 2006 04:11:52 -0000
> ***************
> *** 6787,6792 ****
> --- 6787,6822 ----
> <entry>contains or equals</entry>
> <entry><literal>inet '192.168.1/24' &gt;&gt;= inet '192.168.1/24'</literal></entry>
> </row>
> + <row>
> + <entry> <literal>~</literal> </entry>
> + <entry>bitwise NOT</entry>
> + <entry><literal>~ inet '192.168.1.6'</literal></entry>
> + </row>
> + <row>
> + <entry> <literal>&amp;</literal> </entry>
> + <entry>bitwise AND</entry>
> + <entry><literal>inet '192.168.1.6' &amp; inet '0.0.0.255'</literal></entry>
> + </row>
> + <row>
> + <entry> <literal>|</literal> </entry>
> + <entry>bitwise OR</entry>
> + <entry><literal>inet '192.168.1.6' | inet '0.0.0.255'</literal></entry>
> + </row>
> + <row>
> + <entry> <literal>+</literal> </entry>
> + <entry>addition</entry>
> + <entry><literal>inet '192.168.1.6' + 25</literal></entry>
> + </row>
> + <row>
> + <entry> <literal>-</literal> </entry>
> + <entry>subtraction</entry>
> + <entry><literal>inet '192.168.1.43' - 36</literal></entry>
> + </row>
> + <row>
> + <entry> <literal>-</literal> </entry>
> + <entry>subtraction</entry>
> + <entry><literal>inet '192.168.1.43' - inet '192.168.1.19'</literal></entry>
> + </row>
> </tbody>
> </tgroup>
> </table>
> Index: src/backend/utils/adt/network.c
> ===================================================================
> RCS file: /cvsroot/pgsql/src/backend/utils/adt/network.c,v
> retrieving revision 1.63
> diff -c -c -r1.63 network.c
> *** src/backend/utils/adt/network.c 7 Feb 2006 17:04:04 -0000 1.63
> --- src/backend/utils/adt/network.c 10 Feb 2006 04:11:57 -0000
> ***************
> *** 27,32 ****
> --- 27,33 ----
> static int bitncmp(void *l, void *r, int n);
> static bool addressOK(unsigned char *a, int bits, int family);
> static int ip_addrsize(inet *inetptr);
> + static Datum internal_inetpl(inet *ip, int64 iarg);
>
> /*
> * Access macros.
> ***************
> *** 1250,1252 ****
> --- 1251,1458 ----
>
> PG_RETURN_DATUM(DirectFunctionCall1(int4in, CStringGetDatum(local_port)));
> }
> +
> +
> + Datum
> + inetnot(PG_FUNCTION_ARGS)
> + {
> + inet *ip = PG_GETARG_INET_P(0);
> + inet *dst;
> +
> + dst = (inet *) palloc0(VARHDRSZ + sizeof(inet_struct));
> +
> + {
> + int nb = ip_addrsize(ip);
> + unsigned char *pip = ip_addr(ip);
> + unsigned char *pdst = ip_addr(dst);
> +
> + while (nb-- > 0)
> + pdst[nb] = ~pip[nb];
> + }
> + ip_bits(dst) = ip_bits(ip);
> +
> + ip_family(dst) = ip_family(ip);
> + VARATT_SIZEP(dst) = VARHDRSZ +
> + ((char *) ip_addr(dst) - (char *) VARDATA(dst)) +
> + ip_addrsize(dst);
> +
> + PG_RETURN_INET_P(dst);
> + }
> +
> +
> + Datum
> + inetand(PG_FUNCTION_ARGS)
> + {
> + inet *ip = PG_GETARG_INET_P(0);
> + inet *ip2 = PG_GETARG_INET_P(1);
> + inet *dst;
> +
> + dst = (inet *) palloc0(VARHDRSZ + sizeof(inet_struct));
> +
> + if (ip_family(ip) != ip_family(ip2))
> + ereport(ERROR,
> + (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
> + errmsg("mismatch in address family (%d) != (%d)",
> + ip_family(ip), ip_family(ip2))));
> + else
> + {
> + int nb = ip_addrsize(ip);
> + unsigned char *pip = ip_addr(ip);
> + unsigned char *pip2 = ip_addr(ip2);
> + unsigned char *pdst = ip_addr(dst);
> +
> + while (nb-- > 0)
> + pdst[nb] = pip[nb] & pip2[nb];
> + }
> + ip_bits(dst) = Max(ip_bits(ip), ip_bits(ip2));
> +
> + ip_family(dst) = ip_family(ip);
> + VARATT_SIZEP(dst) = VARHDRSZ +
> + ((char *) ip_addr(dst) - (char *) VARDATA(dst)) +
> + ip_addrsize(dst);
> +
> + PG_RETURN_INET_P(dst);
> + }
> +
> +
> + Datum
> + inetor(PG_FUNCTION_ARGS)
> + {
> + inet *ip = PG_GETARG_INET_P(0);
> + inet *ip2 = PG_GETARG_INET_P(1);
> + inet *dst;
> +
> + dst = (inet *) palloc0(VARHDRSZ + sizeof(inet_struct));
> +
> + if (ip_family(ip) != ip_family(ip2))
> + ereport(ERROR,
> + (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
> + errmsg("mismatch in address family (%d) != (%d)",
> + ip_family(ip), ip_family(ip2))));
> + else
> + {
> + int nb = ip_addrsize(ip);
> + unsigned char *pip = ip_addr(ip);
> + unsigned char *pip2 = ip_addr(ip2);
> + unsigned char *pdst = ip_addr(dst);
> +
> + while (nb-- > 0)
> + pdst[nb] = pip[nb] | pip2[nb];
> + }
> + ip_bits(dst) = Max(ip_bits(ip), ip_bits(ip2));
> +
> + ip_family(dst) = ip_family(ip);
> + VARATT_SIZEP(dst) = VARHDRSZ +
> + ((char *) ip_addr(dst) - (char *) VARDATA(dst)) +
> + ip_addrsize(dst);
> +
> + PG_RETURN_INET_P(dst);
> + }
> +
> +
> + static Datum
> + internal_inetpl(inet *ip, int64 plus)
> + {
> + inet *dst;
> +
> + dst = (inet *) palloc0(VARHDRSZ + sizeof(inet_struct));
> +
> + {
> + int nb = ip_addrsize(ip);
> + unsigned char *pip = ip_addr(ip);
> + unsigned char *pdst = ip_addr(dst);
> + int carry = 0;
> +
> + while (nb-- > 0)
> + {
> + pdst[nb] = carry = pip[nb] + plus + carry;
> + plus /= 0x100; /* process next byte */
> + carry /= 0x100; /* remove low byte */
> + /* Overflow on high byte? */
> + if (nb == 0 && (plus != 0 || carry != 0))
> + ereport(ERROR,
> + (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
> + errmsg("result out of range")));
> + }
> + }
> + ip_bits(dst) = ip_bits(ip);
> +
> + ip_family(dst) = ip_family(ip);
> + VARATT_SIZEP(dst) = VARHDRSZ +
> + ((char *) ip_addr(dst) - (char *) VARDATA(dst)) +
> + ip_addrsize(dst);
> +
> + PG_RETURN_INET_P(dst);
> + }
> +
> +
> + Datum
> + inetpl(PG_FUNCTION_ARGS)
> + {
> + inet *ip = PG_GETARG_INET_P(0);
> + int64 plus = PG_GETARG_INT64(1);
> +
> + return internal_inetpl(ip, plus);
> + }
> +
> +
> + Datum
> + inetmi_int8(PG_FUNCTION_ARGS)
> + {
> + inet *ip = PG_GETARG_INET_P(0);
> + int64 plus = PG_GETARG_INT64(1);
> +
> + return internal_inetpl(ip, -plus);
> + }
> +
> +
> + Datum
> + inetmi(PG_FUNCTION_ARGS)
> + {
> + inet *ip = PG_GETARG_INET_P(0);
> + inet *ip2 = PG_GETARG_INET_P(1);
> + int64 res = 0;
> +
> + if (ip_family(ip) != ip_family(ip2))
> + ereport(ERROR,
> + (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
> + errmsg("mismatch in address family (%d) != (%d)",
> + ip_family(ip), ip_family(ip2))));
> + else
> + {
> + int nb = ip_addrsize(ip);
> + int byte = 0;
> + unsigned char *pip = ip_addr(ip);
> + unsigned char *pip2 = ip_addr(ip2);
> +
> + while (nb-- > 0)
> + {
> + /*
> + * Error if overflow on last byte. This test is tricky
> + * because if the subtraction == 128 and res is negative, or
> + * if subtraction == -128 and res is positive, the result
> + * would still fit in int64.
> + */
> + if (byte + 1 == sizeof(int64) &&
> + (pip[nb] - pip2[nb] >= 128 + (res < 0) ||
> + pip[nb] - pip2[nb] <= -128 - (res > 0)))
> + ereport(ERROR,
> + (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
> + errmsg("result out of range")));
> + if (byte >= sizeof(int64))
> + {
> + /* Error if bytes beyond int64 length differ. */
> + if (pip[nb] != pip2[nb])
> + ereport(ERROR,
> + (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
> + errmsg("result out of range")));
> + }
> + else
> + res += (int64)(pip[nb] - pip2[nb]) << (byte * 8);
> +
> + byte++;
> + }
> + }
> +
> + PG_RETURN_INT64(res);
> + }
> Index: src/include/catalog/pg_operator.h
> ===================================================================
> RCS file: /cvsroot/pgsql/src/include/catalog/pg_operator.h,v
> retrieving revision 1.138
> diff -c -c -r1.138 pg_operator.h
> *** src/include/catalog/pg_operator.h 26 Jan 2006 02:35:49 -0000 1.138
> --- src/include/catalog/pg_operator.h 10 Feb 2006 04:11:59 -0000
> ***************
> *** 653,658 ****
> --- 653,667 ----
> DATA(insert OID = 934 ( ">>=" PGNSP PGUID b f 869 869 16 932 0 0 0 0 0 network_supeq - - ));
> #define OID_INET_SUPEQ_OP 934
>
> + DATA(insert OID = 2634 ( "~" PGNSP PGUID l f 0 869 869 0 0 0 0 0 0 inetnot - - ));
> + DATA(insert OID = 2635 ( "&" PGNSP PGUID b f 869 869 869 0 0 0 0 0 0 inetand - - ));
> + DATA(insert OID = 2636 ( "|" PGNSP PGUID b f 869 869 869 0 0 0 0 0 0 inetor - - ));
> + DATA(insert OID = 2637 ( "+" PGNSP PGUID b f 869 20 869 2638 0 0 0 0 0 inetpl - - ));
> + DATA(insert OID = 2638 ( "+" PGNSP PGUID b f 20 869 869 2637 0 0 0 0 0 int8pl_inet - - ));
> + DATA(insert OID = 2639 ( "-" PGNSP PGUID b f 869 20 869 0 0 0 0 0 0 inetmi_int8 - - ));
> + DATA(insert OID = 2640 ( "-" PGNSP PGUID b f 869 869 20 0 0 0 0 0 0 inetmi - - ));
> +
> +
> /* case-insensitive LIKE hacks */
> DATA(insert OID = 1625 ( "~~*" PGNSP PGUID b f 19 25 16 0 1626 0 0 0 0 nameiclike iclikesel iclikejoinsel ));
> #define OID_NAME_ICLIKE_OP 1625
> Index: src/include/catalog/pg_proc.h
> ===================================================================
> RCS file: /cvsroot/pgsql/src/include/catalog/pg_proc.h,v
> retrieving revision 1.394
> diff -c -c -r1.394 pg_proc.h
> *** src/include/catalog/pg_proc.h 9 Feb 2006 14:53:51 -0000 1.394
> --- src/include/catalog/pg_proc.h 10 Feb 2006 04:12:03 -0000
> ***************
> *** 2431,2436 ****
> --- 2431,2451 ----
> DATA(insert OID = 2199 ( inet_server_port PGNSP PGUID 12 f f f f s 0 23 "" _null_ _null_ _null_ inet_server_port - _null_ ));
> DESCR("server's port number for this connection");
>
> + DATA(insert OID = 2627 ( inetnot PGNSP PGUID 12 f f t f i 1 869 "869" _null_ _null_ _null_ inetnot - _null_ ));
> + DESCR("binary NOT");
> + DATA(insert OID = 2628 ( inetand PGNSP PGUID 12 f f t f i 2 869 "869 869" _null_ _null_ _null_ inetand - _null_ ));
> + DESCR("binary AND");
> + DATA(insert OID = 2629 ( inetor PGNSP PGUID 12 f f t f i 2 869 "869 869" _null_ _null_ _null_ inetor - _null_ ));
> + DESCR("binary OR");
> + DATA(insert OID = 2630 ( inetpl PGNSP PGUID 12 f f t f i 2 869 "869 20" _null_ _null_ _null_ inetpl - _null_ ));
> + DESCR("add integer to INET value");
> + DATA(insert OID = 2631 ( int8pl_inet PGNSP PGUID 14 f f t f i 2 869 "20 869" _null_ _null_ _null_ "select $2 + $1" - _null_ ));
> + DESCR("add integer to INET value");
> + DATA(insert OID = 2632 ( inetmi_int8 PGNSP PGUID 12 f f t f i 2 869 "869 20" _null_ _null_ _null_ inetmi_int8 - _null_ ));
> + DESCR("subtract integer from INET value");
> + DATA(insert OID = 2633 ( inetmi PGNSP PGUID 12 f f t f i 2 20 "869 869" _null_ _null_ _null_ inetmi - _null_ ));
> + DESCR("subtract INET values");
> +
> DATA(insert OID = 1686 ( numeric PGNSP PGUID 12 f f t f i 1 1700 "25" _null_ _null_ _null_ text_numeric - _null_ ));
> DESCR("(internal)");
> DATA(insert OID = 1688 ( text PGNSP PGUID 12 f f t f i 1 25 "1700" _null_ _null_ _null_ numeric_text - _null_ ));
> Index: src/include/utils/builtins.h
> ===================================================================
> RCS file: /cvsroot/pgsql/src/include/utils/builtins.h,v
> retrieving revision 1.272
> diff -c -c -r1.272 builtins.h
> *** src/include/utils/builtins.h 26 Jan 2006 02:35:50 -0000 1.272
> --- src/include/utils/builtins.h 10 Feb 2006 04:12:04 -0000
> ***************
> *** 734,739 ****
> --- 734,745 ----
> extern Datum inet_client_port(PG_FUNCTION_ARGS);
> extern Datum inet_server_addr(PG_FUNCTION_ARGS);
> extern Datum inet_server_port(PG_FUNCTION_ARGS);
> + extern Datum inetnot(PG_FUNCTION_ARGS);
> + extern Datum inetand(PG_FUNCTION_ARGS);
> + extern Datum inetor(PG_FUNCTION_ARGS);
> + extern Datum inetpl(PG_FUNCTION_ARGS);
> + extern Datum inetmi_int8(PG_FUNCTION_ARGS);
> + extern Datum inetmi(PG_FUNCTION_ARGS);
>
> /* mac.c */
> extern Datum macaddr_in(PG_FUNCTION_ARGS);
> Index: src/test/regress/expected/inet.out
> ===================================================================
> RCS file: /cvsroot/pgsql/src/test/regress/expected/inet.out,v
> retrieving revision 1.19
> diff -c -c -r1.19 inet.out
> *** src/test/regress/expected/inet.out 8 Oct 2004 01:45:37 -0000 1.19
> --- src/test/regress/expected/inet.out 10 Feb 2006 04:12:05 -0000
> ***************
> *** 240,244 ****
> --- 240,376 ----
> 192.168.1.0/26 | 192.168.1.226
> (6 rows)
>
> + SELECT ~i FROM inet_tbl;
> + ?column?
> + --------------------------------------------
> + 63.87.254.29/24
> + 63.87.254.29
> + 63.87.254.255/24
> + 63.87.254.255/25
> + 63.87.254.0/24
> + 63.87.254.0/25
> + 245.254.253.252/8
> + 245.254.253.252/8
> + 245.254.253.252
> + 245.254.253.252/24
> + 245.254.253.252/16
> + 245.254.253.252/8
> + 244.254.253.252/8
> + 246.254.253.252/8
> + ffef:ffdc:ffff:ffff:ffff:ffff:ffff:ff0e/64
> + ffef:ffdc:ffff:ffff:ffff:ffff:ffff:0
> + ffff:ffff:ffff:ffff:ffff:ffff:fbfc:fdfe/24
> + (17 rows)
> +
> + SELECT i & c FROM inet_tbl;
> + ?column?
> + ----------------
> + 192.168.1.0/24
> + 192.168.1.0
> + 192.168.1.0/24
> + 192.168.1.0/25
> + 192.168.1.0/24
> + 192.168.1.0/25
> + 10.0.0.0/8
> + 10.0.0.0
> + 10.1.2.3
> + 10.1.2.0/24
> + 10.1.0.0/16
> + 10.0.0.0/8
> + 10.0.0.0/8
> + 8.0.0.0/8
> + 10:23::f1
> + 10:23::8000
> + ::0.2.2.0
> + (17 rows)
> +
> + SELECT i | c FROM inet_tbl;
> + ?column?
> + ------------------
> + 192.168.1.226/24
> + 192.168.1.226
> + 192.168.1.0/24
> + 192.168.1.0/25
> + 192.168.1.255/24
> + 192.168.1.255/25
> + 10.1.2.3/8
> + 10.1.2.3
> + 10.1.2.3
> + 10.1.2.3/24
> + 10.1.2.3/16
> + 10.1.2.3/8
> + 11.1.2.3/8
> + 11.1.2.3/8
> + 10:23::f1
> + 10:23::ffff
> + ::ffff:5.3.3.5
> + (17 rows)
> +
> + SELECT i + 500 FROM inet_tbl;
> + ?column?
> + ------------------
> + 192.168.4.214/24
> + 192.168.4.214
> + 192.168.3.244/24
> + 192.168.3.244/25
> + 192.168.4.243/24
> + 192.168.4.243/25
> + 10.1.4.247/8
> + 10.1.4.247/8
> + 10.1.4.247
> + 10.1.4.247/24
> + 10.1.4.247/16
> + 10.1.4.247/8
> + 11.1.4.247/8
> + 9.1.4.247/8
> + 10:23::3e5/64
> + 10:23::1:2f3
> + ::4.3.4.245/24
> + (17 rows)
> +
> + SELECT i - 500 FROM inet_tbl;
> + ?column?
> + --------------------
> + 192.168.255.238/24
> + 192.168.255.238
> + 192.168.255.12/24
> + 192.168.255.12/25
> + 192.168.0.11/24
> + 192.168.0.11/25
> + 10.1.0.15/8
> + 10.1.0.15/8
> + 10.1.0.15
> + 10.1.0.15/24
> + 10.1.0.15/16
> + 10.1.0.15/8
> + 11.1.0.15/8
> + 9.1.0.15/8
> + 10:23::fefd/64
> + 10:23::fe0b
> + ::4.3.0.13/24
> + (17 rows)
> +
> + SELECT i - c FROM inet_tbl;
> + ?column?
> + ------------------
> + 226
> + 226
> + 0
> + 0
> + 255
> + 255
> + 66051
> + 66051
> + 0
> + 3
> + 515
> + 66051
> + 16843267
> + -16711165
> + 0
> + 32767
> + -281470631346435
> + (17 rows)
> +
> SET enable_seqscan TO on;
> DROP INDEX inet_idx1;
> Index: src/test/regress/sql/inet.sql
> ===================================================================
> RCS file: /cvsroot/pgsql/src/test/regress/sql/inet.sql,v
> retrieving revision 1.11
> diff -c -c -r1.11 inet.sql
> *** src/test/regress/sql/inet.sql 8 Oct 2004 01:45:37 -0000 1.11
> --- src/test/regress/sql/inet.sql 10 Feb 2006 04:12:05 -0000
> ***************
> *** 62,67 ****
> --- 62,75 ----
> SET enable_seqscan TO off;
> SELECT * FROM inet_tbl WHERE i<<'192.168.1.0/24'::cidr;
> SELECT * FROM inet_tbl WHERE i<<='192.168.1.0/24'::cidr;
> +
> + SELECT ~i FROM inet_tbl;
> + SELECT i & c FROM inet_tbl;
> + SELECT i | c FROM inet_tbl;
> + SELECT i + 500 FROM inet_tbl;
> + SELECT i - 500 FROM inet_tbl;
> + SELECT i - c FROM inet_tbl;
> +
> SET enable_seqscan TO on;
> DROP INDEX inet_idx1;
>

>
> ---------------------------(end of broadcast)---------------------------
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--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073

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