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Commit1d0d8d3

Browse files
committed
Mop-up for nulls-in-arrays patch: fix some places that access array
contents directly.
1 parent3201b7f commit1d0d8d3

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8 files changed

+233
-278
lines changed

8 files changed

+233
-278
lines changed

‎contrib/dblink/dblink.c

Lines changed: 115 additions & 197 deletions
Large diffs are not rendered by default.

‎contrib/tsearch2/rank.c

Lines changed: 14 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -3,20 +3,20 @@
33
* Teodor Sigaev <teodor@sigaev.ru>
44
*/
55
#include"postgres.h"
6+
67
#include<math.h>
78

89
#include"access/gist.h"
910
#include"access/itup.h"
10-
#include"utils/builtins.h"
11+
#include"catalog/namespace.h"
12+
#include"commands/trigger.h"
13+
#include"executor/spi.h"
1114
#include"fmgr.h"
1215
#include"funcapi.h"
13-
#include"storage/bufpage.h"
14-
#include"executor/spi.h"
15-
#include"commands/trigger.h"
1616
#include"nodes/pg_list.h"
17-
#include"catalog/namespace.h"
18-
17+
#include"storage/bufpage.h"
1918
#include"utils/array.h"
19+
#include"utils/builtins.h"
2020

2121
#include"tsvector.h"
2222
#include"query.h"
@@ -354,6 +354,7 @@ rank(PG_FUNCTION_ARGS)
354354
intmethod=DEF_NORM_METHOD;
355355
floatres=0.0;
356356
floatws[lengthof(weights)];
357+
float4*arrdata;
357358
inti;
358359

359360
if (ARR_NDIM(win)!=1)
@@ -366,9 +367,15 @@ rank(PG_FUNCTION_ARGS)
366367
(errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
367368
errmsg("array of weight is too short")));
368369

370+
if (ARR_HASNULL(win))
371+
ereport(ERROR,
372+
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
373+
errmsg("array of weight must not contain nulls")));
374+
375+
arrdata= (float4*)ARR_DATA_PTR(win);
369376
for (i=0;i<lengthof(weights);i++)
370377
{
371-
ws[i]= (((float4*)ARR_DATA_PTR(win))[i] >=0) ?((float4*)ARR_DATA_PTR(win))[i] :weights[i];
378+
ws[i]= (arrdata[i] >=0) ?arrdata[i] :weights[i];
372379
if (ws[i]>1.0)
373380
ereport(ERROR,
374381
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),

‎contrib/tsearch2/snowball/header.h

Lines changed: 0 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -3,9 +3,6 @@
33

44
#include"api.h"
55

6-
#defineMAXINT INT_MAX
7-
#defineMININT INT_MIN
8-
96
#defineHEAD 2*sizeof(int)
107

118
#defineSIZE(p) ((int *)(p))[-1]

‎contrib/tsearch2/ts_cfg.c

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -113,6 +113,8 @@ init_cfg(Oid id, TSCfgInfo * cfg)
113113
ts_error(ERROR,"Wrong dimension");
114114
if (ARRNELEMS(a)<1)
115115
continue;
116+
if (ARR_HASNULL(a))
117+
ts_error(ERROR,"Array must not contain nulls");
116118

117119
cfg->map[lexid].len=ARRNELEMS(a);
118120
cfg->map[lexid].dict_id= (Datum*)malloc(sizeof(Datum)*cfg->map[lexid].len);

‎src/backend/utils/adt/acl.c

Lines changed: 37 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
88
*
99
*
1010
* IDENTIFICATION
11-
* $PostgreSQL: pgsql/src/backend/utils/adt/acl.c,v 1.128 2005/11/17 22:14:52 tgl Exp $
11+
* $PostgreSQL: pgsql/src/backend/utils/adt/acl.c,v 1.129 2005/11/18 02:38:23 tgl Exp $
1212
*
1313
*-------------------------------------------------------------------------
1414
*/
@@ -67,6 +67,7 @@ static List *cached_membership_roles = NIL;
6767
staticconstchar*getid(constchar*s,char*n);
6868
staticvoidputid(char*p,constchar*s);
6969
staticAcl*allocacl(intn);
70+
staticvoidcheck_acl(constAcl*acl);
7071
staticconstchar*aclparse(constchar*s,AclItem*aip);
7172
staticboolaclitem_match(constAclItem*a1,constAclItem*a2);
7273
staticvoidcheck_circularity(constAcl*old_acl,constAclItem*mod_aip,
@@ -359,6 +360,26 @@ allocacl(int n)
359360
returnnew_acl;
360361
}
361362

363+
/*
364+
* Verify that an ACL array is acceptable (one-dimensional and has no nulls)
365+
*/
366+
staticvoid
367+
check_acl(constAcl*acl)
368+
{
369+
if (ARR_ELEMTYPE(acl)!=ACLITEMOID)
370+
ereport(ERROR,
371+
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
372+
errmsg("ACL array contains wrong datatype")));
373+
if (ARR_NDIM(acl)!=1)
374+
ereport(ERROR,
375+
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
376+
errmsg("ACL arrays must be one-dimensional")));
377+
if (ARR_HASNULL(acl))
378+
ereport(ERROR,
379+
(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED),
380+
errmsg("ACL arrays must not contain nulls")));
381+
}
382+
362383
/*
363384
* aclitemin
364385
*Allocates storage for, and fills in, a new AclItem given a string
@@ -612,15 +633,8 @@ aclupdate(const Acl *old_acl, const AclItem *mod_aip,
612633
intdst,
613634
num;
614635

615-
/* These checks for null input are probably dead code, but... */
616-
if (!old_acl||ACL_NUM(old_acl)<0)
617-
old_acl=allocacl(0);
618-
if (!mod_aip)
619-
{
620-
new_acl=allocacl(ACL_NUM(old_acl));
621-
memcpy(new_acl,old_acl,ACL_SIZE(old_acl));
622-
returnnew_acl;
623-
}
636+
/* Caller probably already checked old_acl, but be safe */
637+
check_acl(old_acl);
624638

625639
/* If granting grant options, check for circularity */
626640
if (modechg!=ACL_MODECHG_DEL&&
@@ -740,6 +754,8 @@ aclnewowner(const Acl *old_acl, Oid oldOwnerId, Oid newOwnerId)
740754
targ,
741755
num;
742756

757+
check_acl(old_acl);
758+
743759
/*
744760
* Make a copy of the given ACL, substituting new owner ID for old
745761
* wherever it appears as either grantor or grantee. Also note if the new
@@ -836,6 +852,8 @@ check_circularity(const Acl *old_acl, const AclItem *mod_aip,
836852
num;
837853
AclModeown_privs;
838854

855+
check_acl(old_acl);
856+
839857
/*
840858
* For now, grant options can only be granted to roles, not PUBLIC.
841859
* Otherwise we'd have to work a bit harder here.
@@ -916,6 +934,8 @@ recursive_revoke(Acl *acl,
916934
inti,
917935
num;
918936

937+
check_acl(acl);
938+
919939
/* The owner can never truly lose grant options, so short-circuit */
920940
if (grantee==ownerId)
921941
returnacl;
@@ -1005,6 +1025,8 @@ aclmask(const Acl *acl, Oid roleid, Oid ownerId,
10051025
if (acl==NULL)
10061026
elog(ERROR,"null ACL");
10071027

1028+
check_acl(acl);
1029+
10081030
/* Quick exit for mask == 0 */
10091031
if (mask==0)
10101032
return0;
@@ -1091,6 +1113,8 @@ aclmask_direct(const Acl *acl, Oid roleid, Oid ownerId,
10911113
if (acl==NULL)
10921114
elog(ERROR,"null ACL");
10931115

1116+
check_acl(acl);
1117+
10941118
/* Quick exit for mask == 0 */
10951119
if (mask==0)
10961120
return0;
@@ -1151,6 +1175,8 @@ aclmembers(const Acl *acl, Oid **roleids)
11511175
return0;
11521176
}
11531177

1178+
check_acl(acl);
1179+
11541180
/* Allocate the worst-case space requirement */
11551181
list=palloc(ACL_NUM(acl)*2*sizeof(Oid));
11561182
acldat=ACL_DAT(acl);
@@ -1240,6 +1266,7 @@ aclcontains(PG_FUNCTION_ARGS)
12401266
inti,
12411267
num;
12421268

1269+
check_acl(acl);
12431270
num=ACL_NUM(acl);
12441271
aidat=ACL_DAT(acl);
12451272
for (i=0;i<num;++i)

‎src/backend/utils/adt/varlena.c

Lines changed: 39 additions & 13 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
88
*
99
*
1010
* IDENTIFICATION
11-
* $PostgreSQL: pgsql/src/backend/utils/adt/varlena.c,v 1.139 2005/10/29 00:31:51 petere Exp $
11+
* $PostgreSQL: pgsql/src/backend/utils/adt/varlena.c,v 1.140 2005/11/18 02:38:23 tgl Exp $
1212
*
1313
*-------------------------------------------------------------------------
1414
*/
@@ -2491,16 +2491,18 @@ array_to_text(PG_FUNCTION_ARGS)
24912491
intnitems,
24922492
*dims,
24932493
ndims;
2494-
char*p;
24952494
Oidelement_type;
24962495
inttyplen;
24972496
booltypbyval;
24982497
chartypalign;
24992498
StringInforesult_str=makeStringInfo();
2499+
boolprinted= false;
2500+
char*p;
2501+
bits8*bitmap;
2502+
intbitmask;
25002503
inti;
25012504
ArrayMetaState*my_extra;
25022505

2503-
p=ARR_DATA_PTR(v);
25042506
ndims=ARR_NDIM(v);
25052507
dims=ARR_DIMS(v);
25062508
nitems=ArrayGetNItems(ndims,dims);
@@ -2522,7 +2524,7 @@ array_to_text(PG_FUNCTION_ARGS)
25222524
fcinfo->flinfo->fn_extra=MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
25232525
sizeof(ArrayMetaState));
25242526
my_extra= (ArrayMetaState*)fcinfo->flinfo->fn_extra;
2525-
my_extra->element_type=InvalidOid;
2527+
my_extra->element_type=~element_type;
25262528
}
25272529

25282530
if (my_extra->element_type!=element_type)
@@ -2542,23 +2544,47 @@ array_to_text(PG_FUNCTION_ARGS)
25422544
typbyval=my_extra->typbyval;
25432545
typalign=my_extra->typalign;
25442546

2547+
p=ARR_DATA_PTR(v);
2548+
bitmap=ARR_NULLBITMAP(v);
2549+
bitmask=1;
2550+
25452551
for (i=0;i<nitems;i++)
25462552
{
25472553
Datumitemvalue;
25482554
char*value;
25492555

2550-
itemvalue=fetch_att(p,typbyval,typlen);
2556+
/* Get source element, checking for NULL */
2557+
if (bitmap&& (*bitmap&bitmask)==0)
2558+
{
2559+
/* we ignore nulls */
2560+
}
2561+
else
2562+
{
2563+
itemvalue=fetch_att(p,typbyval,typlen);
25512564

2552-
value=DatumGetCString(FunctionCall1(&my_extra->proc,
2553-
itemvalue));
2565+
value=DatumGetCString(FunctionCall1(&my_extra->proc,
2566+
itemvalue));
25542567

2555-
if (i>0)
2556-
appendStringInfo(result_str,"%s%s",fldsep,value);
2557-
else
2558-
appendStringInfoString(result_str,value);
2568+
if (printed)
2569+
appendStringInfo(result_str,"%s%s",fldsep,value);
2570+
else
2571+
appendStringInfoString(result_str,value);
2572+
printed= true;
2573+
2574+
p=att_addlength(p,typlen,PointerGetDatum(p));
2575+
p= (char*)att_align(p,typalign);
2576+
}
25592577

2560-
p=att_addlength(p,typlen,PointerGetDatum(p));
2561-
p= (char*)att_align(p,typalign);
2578+
/* advance bitmap pointer if any */
2579+
if (bitmap)
2580+
{
2581+
bitmask <<=1;
2582+
if (bitmask==0x100)
2583+
{
2584+
bitmap++;
2585+
bitmask=1;
2586+
}
2587+
}
25622588
}
25632589

25642590
PG_RETURN_TEXT_P(PG_STR_GET_TEXT(result_str->data));

‎src/include/utils/acl.h

Lines changed: 4 additions & 21 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@
77
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
88
* Portions Copyright (c) 1994, Regents of the University of California
99
*
10-
* $PostgreSQL: pgsql/src/include/utils/acl.h,v 1.87 2005/11/17 22:14:55 tgl Exp $
10+
* $PostgreSQL: pgsql/src/include/utils/acl.h,v 1.88 2005/11/18 02:38:24 tgl Exp $
1111
*
1212
* NOTES
1313
* An ACL array is simply an array of AclItems, representing the union
@@ -78,9 +78,9 @@ typedef struct AclItem
7878
#defineACLITEM_ALL_GOPTION_BITS((AclMode) 0xFFFF << 16)
7979

8080
/*
81-
* Definitions for convenient access to Acl (array of AclItem) and IdList
82-
*(array of Oid).These are standard PostgreSQL arrays, but are restricted
83-
*to have one dimension. We also ignore the lower bound when reading,
81+
* Definitions for convenient access to Acl (array of AclItem).
82+
* These are standard PostgreSQL arrays, but are restricted to have one
83+
*dimension and no nulls. We also ignore the lower bound when reading,
8484
* and set it to one when writing.
8585
*
8686
* CAUTION: as of PostgreSQL 7.1, these arrays are toastable (just like all
@@ -100,16 +100,6 @@ typedef ArrayType Acl;
100100
#defineACL_N_SIZE(N)(ARR_OVERHEAD_NONULLS(1) + ((N) * sizeof(AclItem)))
101101
#defineACL_SIZE(ACL)ARR_SIZE(ACL)
102102

103-
/*
104-
* IdLista one-dimensional array of Oid
105-
*/
106-
typedefArrayTypeIdList;
107-
108-
#defineIDLIST_NUM(IDL)(ARR_DIMS(IDL)[0])
109-
#defineIDLIST_DAT(IDL)((Oid *) ARR_DATA_PTR(IDL))
110-
#defineIDLIST_N_SIZE(N)(ARR_OVERHEAD_NONULLS(1) + ((N) * sizeof(Oid)))
111-
#defineIDLIST_SIZE(IDL)ARR_SIZE(IDL)
112-
113103
/*
114104
* fmgr macros for these types
115105
*/
@@ -123,13 +113,6 @@ typedef ArrayType IdList;
123113
#definePG_GETARG_ACL_P_COPY(n) DatumGetAclPCopy(PG_GETARG_DATUM(n))
124114
#definePG_RETURN_ACL_P(x) PG_RETURN_POINTER(x)
125115

126-
#defineDatumGetIdListP(X) ((IdList *) PG_DETOAST_DATUM(X))
127-
#defineDatumGetIdListPCopy(X) ((IdList *) PG_DETOAST_DATUM_COPY(X))
128-
#definePG_GETARG_IDLIST_P(n) DatumGetIdListP(PG_GETARG_DATUM(n))
129-
#definePG_GETARG_IDLIST_P_COPY(n) DatumGetIdListPCopy(PG_GETARG_DATUM(n))
130-
#definePG_RETURN_IDLIST_P(x) PG_RETURN_POINTER(x)
131-
132-
133116
/*
134117
* ACL modification opcodes for aclupdate
135118
*/

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