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Fix various confusions of pointers and OIDs, unsafe assumptions about nulls,

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etc.  I think this will fix the current buildfarm issues ...
This commit is contained in:
Tom Lane 2008-12-20 15:51:28 +00:00
parent cef8efc62d
commit a1212d09a1
1 changed files with 32 additions and 17 deletions
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49
src/backend/commands/foreigncmds.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/foreigncmds.c,v 1.2 2008/12/20 09:40:56 heikki Exp $
* $PostgreSQL: pgsql/src/backend/commands/foreigncmds.c,v 1.3 2008/12/20 15:51:28 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -35,6 +35,8 @@
/*
* Convert a DefElem list to the text array format that is used in
* pg_foreign_data_wrapper, pg_foreign_server, and pg_user_mapping.
* Returns the array in the form of a Datum, or PointerGetDatum(NULL)
* if the list is empty.
*
* Note: The array is usually stored to database without further
* processing, hence any validation should be done before this
@ -45,13 +47,13 @@ optionListToArray(List *options)
{
ArrayBuildState *astate = NULL;
ListCell *cell;
text *t;
foreach (cell, options)
foreach(cell, options)
{
DefElem *def = lfirst(cell);
const char *value = "";
const char *value;
Size len;
text *t;
value = defGetString(def);
len = VARHDRSZ + strlen(def->defname) + 1 + strlen(value);
@ -76,6 +78,9 @@ optionListToArray(List *options)
* The result is converted to array of text suitable for storing in
* options.
*
* Returns the array in the form of a Datum, or PointerGetDatum(NULL)
* if the list is empty.
*
* This is used by CREATE/ALTER of FOREIGN DATA WRAPPER/SERVER/USER
* MAPPING. In the ALTER cases, oldOptions is the current text array
* of options.
@ -90,15 +95,15 @@ transformGenericOptions(Datum oldOptions,
List *resultOptions = untransformRelOptions(oldOptions);
ListCell *optcell;
foreach (optcell, optionDefList)
foreach(optcell, optionDefList)
{
OptionDefElem *od = lfirst(optcell);
ListCell *cell;
ListCell *prev = NULL;
OptionDefElem *od = lfirst(optcell);
/*
* Find the element in resultOptions. We need this for
* validation in all cases.
* validation in all cases. Also identify the previous element.
*/
foreach (cell, resultOptions)
{
@ -190,7 +195,6 @@ AlterForeignDataWrapperOwner(const char *name, Oid newOwnerId)
HeapTuple tup;
Relation rel;
Oid fdwId;
Form_pg_foreign_data_wrapper form;
/* Must be a superuser to change a FDW owner */
@ -345,7 +349,8 @@ CreateForeignDataWrapper(CreateFdwStmt *stmt)
*/
rel = heap_open(ForeignDataWrapperRelationId, RowExclusiveLock);
MemSet(nulls, false, Natts_pg_foreign_data_wrapper);
memset(values, 0, sizeof(values));
memset(nulls, false, sizeof(nulls));
values[Anum_pg_foreign_data_wrapper_fdwname - 1] =
DirectFunctionCall1(namein, CStringGetDatum(stmt->fdwname));
@ -359,7 +364,8 @@ CreateForeignDataWrapper(CreateFdwStmt *stmt)
*/
fdwlib = GetForeignDataWrapperLibrary(stmt->library);
fdwoptions = transformGenericOptions(0, stmt->options, FdwOpt, NULL,
fdwoptions = transformGenericOptions(PointerGetDatum(NULL), stmt->options,
FdwOpt, NULL,
fdwlib->validateOptionList);
if (PointerIsValid(DatumGetPointer(fdwoptions)))
@ -447,6 +453,7 @@ AlterForeignDataWrapper(AlterFdwStmt *stmt)
tp,
Anum_pg_foreign_data_wrapper_fdwlibrary,
&isnull);
Assert(!isnull);
fdwlib = GetForeignDataWrapperLibrary(TextDatumGetCString(datum));
}
@ -460,13 +467,15 @@ AlterForeignDataWrapper(AlterFdwStmt *stmt)
tp,
Anum_pg_foreign_data_wrapper_fdwoptions,
&isnull);
if (isnull)
datum = PointerGetDatum(NULL);
/* Transform the options */
datum = transformGenericOptions(datum, stmt->options, FdwOpt,
NULL, fdwlib->validateOptionList);
if (PointerIsValid(DatumGetPointer(datum)))
repl_val[Anum_pg_foreign_data_wrapper_fdwoptions - 1] = ObjectIdGetDatum(datum);
repl_val[Anum_pg_foreign_data_wrapper_fdwoptions - 1] = datum;
else
repl_null[Anum_pg_foreign_data_wrapper_fdwoptions - 1] = true;
@ -603,7 +612,8 @@ CreateForeignServer(CreateForeignServerStmt *stmt)
*/
rel = heap_open(ForeignServerRelationId, RowExclusiveLock);
MemSet(nulls, false, Natts_pg_foreign_server);
memset(values, 0, sizeof(values));
memset(nulls, false, sizeof(nulls));
values[Anum_pg_foreign_server_srvname - 1] =
DirectFunctionCall1(namein, CStringGetDatum(stmt->servername));
@ -628,7 +638,8 @@ CreateForeignServer(CreateForeignServerStmt *stmt)
nulls[Anum_pg_foreign_server_srvacl - 1] = true;
/* Add server options */
srvoptions = transformGenericOptions(0, stmt->options, ServerOpt, fdw,
srvoptions = transformGenericOptions(PointerGetDatum(NULL), stmt->options,
ServerOpt, fdw,
fdw->lib->validateOptionList);
if (PointerIsValid(DatumGetPointer(srvoptions)))
@ -722,6 +733,8 @@ AlterForeignServer(AlterForeignServerStmt *stmt)
tp,
Anum_pg_foreign_server_srvoptions,
&isnull);
if (isnull)
datum = PointerGetDatum(NULL);
/* Prepare the options array */
datum = transformGenericOptions(datum, stmt->options, ServerOpt,
@ -868,13 +881,15 @@ CreateUserMapping(CreateUserMappingStmt *stmt)
*/
rel = heap_open(UserMappingRelationId, RowExclusiveLock);
MemSet(nulls, false, Natts_pg_user_mapping);
memset(values, 0, sizeof(values));
memset(nulls, false, sizeof(nulls));
values[Anum_pg_user_mapping_umuser - 1] = ObjectIdGetDatum(useId);
values[Anum_pg_user_mapping_umserver - 1] = ObjectIdGetDatum(srv->serverid);
/* Add user options */
useoptions = transformGenericOptions(0, stmt->options, UserMappingOpt,
useoptions = transformGenericOptions(PointerGetDatum(NULL), stmt->options,
UserMappingOpt,
fdw, fdw->lib->validateOptionList);
if (PointerIsValid(DatumGetPointer(useoptions)))
@ -931,12 +946,10 @@ AlterUserMapping(AlterUserMappingStmt *stmt)
ObjectIdGetDatum(srv->serverid),
0, 0);
if (!OidIsValid(umId))
{
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_OBJECT),
errmsg("user mapping \"%s\" does not exist for the server",
MappingUserName(useId))));
}
/*
* Must be owner of the server to alter user mapping.
@ -972,6 +985,8 @@ AlterUserMapping(AlterUserMappingStmt *stmt)
tp,
Anum_pg_user_mapping_umoptions,
&isnull);
if (isnull)
datum = PointerGetDatum(NULL);
/* Prepare the options array */
datum = transformGenericOptions(datum, stmt->options, UserMappingOpt,