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Repair erroneous use of hashvarlena() for MACADDR, which is not a

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varlena type.  (I did not force initdb, but you won't see the fix
unless you do one.)  Also, make sure all index support operators and
functions are careful not to leak memory for toasted inputs; I had
missed some hash and rtree support ops on this point before.
REL7_1_STABLE
Tom Lane 25 years ago
parent fb47385fc8
commit 376784cf8a
8 changed files with 115 additions and 30 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 10
      src/backend/access/hash/hashfunc.c
  2. 5
      src/backend/access/rtree/rtproc.c
  3. 94
      src/backend/utils/adt/geo_ops.c
  4. 15
      src/backend/utils/adt/mac.c
  5. 10
      src/backend/utils/adt/varchar.c
  6. 4
      src/include/catalog/pg_amproc.h
  7. 4
      src/include/catalog/pg_proc.h
  8. 3
      src/include/utils/builtins.h

10
src/backend/access/hash/hashfunc.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/hash/hashfunc.c,v 1.27 2000/06/19 03:54:17 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/access/hash/hashfunc.c,v 1.28 2000/12/08 23:57:02 tgl Exp $
*
* NOTES
* These functions are stored in pg_amproc. For each operator class
@ -106,8 +106,14 @@ Datum
hashvarlena(PG_FUNCTION_ARGS)
{
struct varlena *key = PG_GETARG_VARLENA_P(0);
Datum result;
return hash_any(VARDATA(key), VARSIZE(key) - VARHDRSZ);
result = hash_any(VARDATA(key), VARSIZE(key) - VARHDRSZ);
/* Avoid leaking memory for toasted inputs */
PG_FREE_IF_COPY(key, 0);
return result;
}

5
src/backend/access/rtree/rtproc.c
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@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/rtree/Attic/rtproc.c,v 1.29 2000/07/30 20:43:40 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/access/rtree/Attic/rtproc.c,v 1.30 2000/12/08 23:57:01 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -183,5 +183,8 @@ rt_poly_size(PG_FUNCTION_ARGS)
*size = (float) (xdim * ydim);
}
/* Avoid leaking memory when handed toasted input. */
PG_FREE_IF_COPY(a, 0);
PG_RETURN_VOID();
}

94
src/backend/utils/adt/geo_ops.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/geo_ops.c,v 1.55 2000/12/03 20:45:35 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/geo_ops.c,v 1.56 2000/12/08 23:57:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -3097,8 +3097,15 @@ poly_left(PG_FUNCTION_ARGS)
{
POLYGON *polya = PG_GETARG_POLYGON_P(0);
POLYGON *polyb = PG_GETARG_POLYGON_P(1);
bool result;
PG_RETURN_BOOL(polya->boundbox.high.x < polyb->boundbox.low.x);
result = polya->boundbox.high.x < polyb->boundbox.low.x;
/* Avoid leaking memory for toasted inputs ... needed for rtree indexes */
PG_FREE_IF_COPY(polya, 0);
PG_FREE_IF_COPY(polyb, 1);
PG_RETURN_BOOL(result);
}
/*-------------------------------------------------------
@ -3111,8 +3118,15 @@ poly_overleft(PG_FUNCTION_ARGS)
{
POLYGON *polya = PG_GETARG_POLYGON_P(0);
POLYGON *polyb = PG_GETARG_POLYGON_P(1);
bool result;
result = polya->boundbox.low.x <= polyb->boundbox.high.x;
PG_RETURN_BOOL(polya->boundbox.low.x <= polyb->boundbox.high.x);
/* Avoid leaking memory for toasted inputs ... needed for rtree indexes */
PG_FREE_IF_COPY(polya, 0);
PG_FREE_IF_COPY(polyb, 1);
PG_RETURN_BOOL(result);
}
/*-------------------------------------------------------
@ -3125,8 +3139,15 @@ poly_right(PG_FUNCTION_ARGS)
{
POLYGON *polya = PG_GETARG_POLYGON_P(0);
POLYGON *polyb = PG_GETARG_POLYGON_P(1);
bool result;
result = polya->boundbox.low.x > polyb->boundbox.high.x;
/* Avoid leaking memory for toasted inputs ... needed for rtree indexes */
PG_FREE_IF_COPY(polya, 0);
PG_FREE_IF_COPY(polyb, 1);
PG_RETURN_BOOL(polya->boundbox.low.x > polyb->boundbox.high.x);
PG_RETURN_BOOL(result);
}
/*-------------------------------------------------------
@ -3139,8 +3160,15 @@ poly_overright(PG_FUNCTION_ARGS)
{
POLYGON *polya = PG_GETARG_POLYGON_P(0);
POLYGON *polyb = PG_GETARG_POLYGON_P(1);
bool result;
PG_RETURN_BOOL(polya->boundbox.high.x > polyb->boundbox.low.x);
result = polya->boundbox.high.x > polyb->boundbox.low.x;
/* Avoid leaking memory for toasted inputs ... needed for rtree indexes */
PG_FREE_IF_COPY(polya, 0);
PG_FREE_IF_COPY(polyb, 1);
PG_RETURN_BOOL(result);
}
/*-------------------------------------------------------
@ -3155,11 +3183,18 @@ poly_same(PG_FUNCTION_ARGS)
{
POLYGON *polya = PG_GETARG_POLYGON_P(0);
POLYGON *polyb = PG_GETARG_POLYGON_P(1);
bool result;
if (polya->npts != polyb->npts)
PG_RETURN_BOOL(false);
result = false;
else
result = plist_same(polya->npts, polya->p, polyb->p);
/* Avoid leaking memory for toasted inputs ... needed for rtree indexes */
PG_FREE_IF_COPY(polya, 0);
PG_FREE_IF_COPY(polyb, 1);
PG_RETURN_BOOL(plist_same(polya->npts, polya->p, polyb->p));
PG_RETURN_BOOL(result);
}
/*-----------------------------------------------------------------
@ -3173,8 +3208,15 @@ poly_overlap(PG_FUNCTION_ARGS)
{
POLYGON *polya = PG_GETARG_POLYGON_P(0);
POLYGON *polyb = PG_GETARG_POLYGON_P(1);
bool result;
result = box_ov(&polya->boundbox, &polyb->boundbox);
PG_RETURN_BOOL(box_ov(&polya->boundbox, &polyb->boundbox));
/* Avoid leaking memory for toasted inputs ... needed for rtree indexes */
PG_FREE_IF_COPY(polya, 0);
PG_FREE_IF_COPY(polyb, 1);
PG_RETURN_BOOL(result);
}
@ -3186,6 +3228,7 @@ poly_contain(PG_FUNCTION_ARGS)
{
POLYGON *polya = PG_GETARG_POLYGON_P(0);
POLYGON *polyb = PG_GETARG_POLYGON_P(1);
bool result;
int i;
/*
@ -3195,6 +3238,7 @@ poly_contain(PG_FUNCTION_ARGS)
BoxPGetDatum(&polya->boundbox),
BoxPGetDatum(&polyb->boundbox))))
{
result = true; /* assume true for now */
for (i = 0; i < polyb->npts; i++)
{
if (point_inside(&(polyb->p[i]), polya->npts, &(polya->p[0])) == 0)
@ -3202,28 +3246,40 @@ poly_contain(PG_FUNCTION_ARGS)
#if GEODEBUG
printf("poly_contain- point (%f,%f) not in polygon\n", polyb->p[i].x, polyb->p[i].y);
#endif
PG_RETURN_BOOL(false);
result = false;
break;
}
}
for (i = 0; i < polya->npts; i++)
if (result)
{
if (point_inside(&(polya->p[i]), polyb->npts, &(polyb->p[0])) == 1)
for (i = 0; i < polya->npts; i++)
{
if (point_inside(&(polya->p[i]), polyb->npts, &(polyb->p[0])) == 1)
{
#if GEODEBUG
printf("poly_contain- point (%f,%f) in polygon\n", polya->p[i].x, polya->p[i].y);
printf("poly_contain- point (%f,%f) in polygon\n", polya->p[i].x, polya->p[i].y);
#endif
PG_RETURN_BOOL(false);
result = false;
break;
}
}
}
PG_RETURN_BOOL(true);
}
else
{
#if GEODEBUG
printf("poly_contain- bound box ((%f,%f),(%f,%f)) not inside ((%f,%f),(%f,%f))\n",
polyb->boundbox.low.x, polyb->boundbox.low.y, polyb->boundbox.high.x, polyb->boundbox.high.y,
polya->boundbox.low.x, polya->boundbox.low.y, polya->boundbox.high.x, polya->boundbox.high.y);
printf("poly_contain- bound box ((%f,%f),(%f,%f)) not inside ((%f,%f),(%f,%f))\n",
polyb->boundbox.low.x, polyb->boundbox.low.y, polyb->boundbox.high.x, polyb->boundbox.high.y,
polya->boundbox.low.x, polya->boundbox.low.y, polya->boundbox.high.x, polya->boundbox.high.y);
#endif
PG_RETURN_BOOL(false);
result = false;
}
/* Avoid leaking memory for toasted inputs ... needed for rtree indexes */
PG_FREE_IF_COPY(polya, 0);
PG_FREE_IF_COPY(polyb, 1);
PG_RETURN_BOOL(result);
}

15
src/backend/utils/adt/mac.c
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@ -1,11 +1,12 @@
/*
* PostgreSQL type definitions for MAC addresses.
*
* $Header: /cvsroot/pgsql/src/backend/utils/adt/mac.c,v 1.18 2000/08/23 06:04:33 thomas Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/mac.c,v 1.19 2000/12/08 23:57:03 tgl Exp $
*/
#include "postgres.h"
#include "access/hash.h"
#include "utils/builtins.h"
#include "utils/inet.h"
@ -236,11 +237,21 @@ macaddr_ne(PG_FUNCTION_ARGS)
PG_RETURN_BOOL(macaddr_cmp_internal(a1, a2) != 0);
}
/*
* Support function for hash indexes on macaddr.
*/
Datum
hashmacaddr(PG_FUNCTION_ARGS)
{
macaddr *key = PG_GETARG_MACADDR_P(0);
return hash_any((char *) key, sizeof(macaddr));
}
/*
* Truncation function to allow comparing mac manufacturers.
* From suggestion by Alex Pilosov <alex@pilosoft.com>
*/
Datum
macaddr_trunc(PG_FUNCTION_ARGS)
{

10
src/backend/utils/adt/varchar.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varchar.c,v 1.71 2000/11/26 11:35:23 ishii Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/varchar.c,v 1.72 2000/12/08 23:57:03 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -663,11 +663,17 @@ hashbpchar(PG_FUNCTION_ARGS)
BpChar *key = PG_GETARG_BPCHAR_P(0);
char *keydata;
int keylen;
Datum result;
keydata = VARDATA(key);
keylen = bcTruelen(key);
return hash_any(keydata, keylen);
result = hash_any(keydata, keylen);
/* Avoid leaking memory for toasted inputs */
PG_FREE_IF_COPY(key, 0);
return result;
}

4
src/include/catalog/pg_amproc.h
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@ -10,7 +10,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pg_amproc.h,v 1.25 2000/08/21 04:48:51 tgl Exp $
* $Id: pg_amproc.h,v 1.26 2000/12/08 23:57:02 tgl Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
@ -114,7 +114,7 @@ DATA(insert OID = 0 (405 431 456 1));
DATA(insert OID = 0 (405 435 457 1));
DATA(insert OID = 0 (405 652 456 1));
DATA(insert OID = 0 (405 754 949 1));
DATA(insert OID = 0 (405 810 456 1));
DATA(insert OID = 0 (405 810 399 1));
DATA(insert OID = 0 (405 935 456 1));
DATA(insert OID = 0 (405 1076 1080 1));
DATA(insert OID = 0 (405 1077 456 1));

4
src/include/catalog/pg_proc.h
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@ -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 1.177 2000/12/07 18:38:58 tgl Exp $
* $Id: pg_proc.h,v 1.178 2000/12/08 23:57:02 tgl Exp $
*
* NOTES
* The script catalog/genbki.sh reads this file and generates .bki
@ -830,6 +830,8 @@ DATA(insert OID = 456 ( hashvarlena PGUID 12 f t t t 1 f 23 "0" 100 0 0 100
DESCR("hash any varlena type");
DATA(insert OID = 457 ( hashoidvector PGUID 12 f t t t 1 f 23 "30" 100 0 0 100 hashoidvector - ));
DESCR("hash");
DATA(insert OID = 399 ( hashmacaddr PGUID 12 f t t t 1 f 23 "829" 100 0 0 100 hashmacaddr - ));
DESCR("hash");
DATA(insert OID = 458 ( text_larger PGUID 12 f t t t 2 f 25 "25 25" 100 0 0 100 text_larger - ));
DESCR("larger of two");
DATA(insert OID = 459 ( text_smaller PGUID 12 f t t t 2 f 25 "25 25" 100 0 0 100 text_smaller - ));

3
src/include/utils/builtins.h
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@ -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 1.143 2000/11/25 20:33:54 tgl Exp $
* $Id: builtins.h,v 1.144 2000/12/08 23:57:00 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -522,6 +522,7 @@ extern Datum macaddr_ne(PG_FUNCTION_ARGS);
extern Datum macaddr_trunc(PG_FUNCTION_ARGS);
extern Datum macaddr_text(PG_FUNCTION_ARGS);
extern Datum text_macaddr(PG_FUNCTION_ARGS);
extern Datum hashmacaddr(PG_FUNCTION_ARGS);
/* numeric.c */
extern Datum numeric_in(PG_FUNCTION_ARGS);

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