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Commit4265ed9

Browse files
committed
Check that connection limit is within valid range. IOW, not < -1.
It's missing in older versions too, but it doesn't seem worthback-porting. All negative are just harmlessly treated as "no limit", andtightening the check might even brake an application that relies on it.
1 parentcb629f7 commit4265ed9

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2 files changed

+26
-2
lines changed

2 files changed

+26
-2
lines changed

‎src/backend/commands/dbcommands.c

Lines changed: 13 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -13,7 +13,7 @@
1313
*
1414
*
1515
* IDENTIFICATION
16-
* $PostgreSQL: pgsql/src/backend/commands/dbcommands.c,v 1.218 2009/01/20 18:59:37 heikki Exp $
16+
* $PostgreSQL: pgsql/src/backend/commands/dbcommands.c,v 1.219 2009/01/30 17:24:47 heikki Exp $
1717
*
1818
*-------------------------------------------------------------------------
1919
*/
@@ -244,7 +244,13 @@ createdb(const CreatedbStmt *stmt)
244244
dbctype=strVal(dctype->arg);
245245

246246
if (dconnlimit&&dconnlimit->arg)
247+
{
247248
dbconnlimit=intVal(dconnlimit->arg);
249+
if (dbconnlimit<-1)
250+
ereport(ERROR,
251+
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
252+
errmsg("invalid connection limit: %d",dbconnlimit)));
253+
}
248254

249255
/* obtain OID of proposed owner */
250256
if (dbowner)
@@ -1319,7 +1325,13 @@ AlterDatabase(AlterDatabaseStmt *stmt, bool isTopLevel)
13191325
}
13201326

13211327
if (dconnlimit)
1328+
{
13221329
connlimit=intVal(dconnlimit->arg);
1330+
if (connlimit<-1)
1331+
ereport(ERROR,
1332+
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
1333+
errmsg("invalid connection limit: %d",connlimit)));
1334+
}
13231335

13241336
/*
13251337
* Get the old tuple. We don't need a lock on the database per se,

‎src/backend/commands/user.c

Lines changed: 13 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
77
* Portions Copyright (c) 1994, Regents of the University of California
88
*
9-
* $PostgreSQL: pgsql/src/backend/commands/user.c,v 1.185 2009/01/22 20:16:02 tgl Exp $
9+
* $PostgreSQL: pgsql/src/backend/commands/user.c,v 1.186 2009/01/30 17:24:47 heikki Exp $
1010
*
1111
*-------------------------------------------------------------------------
1212
*/
@@ -242,7 +242,13 @@ CreateRole(CreateRoleStmt *stmt)
242242
if (dcanlogin)
243243
canlogin=intVal(dcanlogin->arg)!=0;
244244
if (dconnlimit)
245+
{
245246
connlimit=intVal(dconnlimit->arg);
247+
if (connlimit<-1)
248+
ereport(ERROR,
249+
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
250+
errmsg("invalid connection limit: %d",connlimit)));
251+
}
246252
if (daddroleto)
247253
addroleto= (List*)daddroleto->arg;
248254
if (drolemembers)
@@ -533,7 +539,13 @@ AlterRole(AlterRoleStmt *stmt)
533539
if (dcanlogin)
534540
canlogin=intVal(dcanlogin->arg);
535541
if (dconnlimit)
542+
{
536543
connlimit=intVal(dconnlimit->arg);
544+
if (connlimit<-1)
545+
ereport(ERROR,
546+
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
547+
errmsg("invalid connection limit: %d",connlimit)));
548+
}
537549
if (drolemembers)
538550
rolemembers= (List*)drolemembers->arg;
539551
if (dvalidUntil)

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