Add more use of psprintf()

contrib/dblink/dblink.c

@@ -1563,10 +1563,7 @@ dblink_get_pkey(PG_FUNCTION_ARGS)
 		Datum		result;
 
 		values = (char **) palloc(2 * sizeof(char *));
-		values[0] = (char *) palloc(12);		/* sign, 10 digits, '\0' */
-
-		sprintf(values[0], "%d", call_cntr + 1);
-
+		values[0] = psprintf("%d", call_cntr + 1);
 		values[1] = results[call_cntr];
 
 		/* build the tuple */

contrib/hstore/hstore_io.c

@@ -1114,11 +1114,7 @@ hstore_out(PG_FUNCTION_ARGS)
 	HEntry	   *entries = ARRPTR(in);
 
 	if (count == 0)
-	{
-		out = palloc(1);
-		*out = '\0';
-		PG_RETURN_CSTRING(out);
-	}
+		PG_RETURN_CSTRING(pstrdup(""));
 
 	buflen = 0;
 

contrib/pageinspect/btreefuncs.c

@@ -220,31 +220,17 @@ bt_page_stats(PG_FUNCTION_ARGS)
 		elog(ERROR, "return type must be a row type");
 
 	j = 0;
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", stat.blkno);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%c", stat.type);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", stat.live_items);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", stat.dead_items);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", stat.avg_item_size);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", stat.page_size);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", stat.free_size);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", stat.btpo_prev);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", stat.btpo_next);
-	values[j] = palloc(32);
-	if (stat.type == 'd')
-		snprintf(values[j++], 32, "%d", stat.btpo.xact);
-	else
-		snprintf(values[j++], 32, "%d", stat.btpo.level);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", stat.btpo_flags);
+	values[j++] = psprintf("%d", stat.blkno);
+	values[j++] = psprintf("%c", stat.type);
+	values[j++] = psprintf("%d", stat.live_items);
+	values[j++] = psprintf("%d", stat.dead_items);
+	values[j++] = psprintf("%d", stat.avg_item_size);
+	values[j++] = psprintf("%d", stat.page_size);
+	values[j++] = psprintf("%d", stat.free_size);
+	values[j++] = psprintf("%d", stat.btpo_prev);
+	values[j++] = psprintf("%d", stat.btpo_next);
+	values[j++] = psprintf("%d", (stat.type == 'd') ? stat.btpo.xact : stat.btpo.level);
+	values[j++] = psprintf("%d", stat.btpo_flags);
 
 	tuple = BuildTupleFromCStrings(TupleDescGetAttInMetadata(tupleDesc),
 								   values);
@@ -380,18 +366,13 @@ bt_page_items(PG_FUNCTION_ARGS)
 		itup = (IndexTuple) PageGetItem(uargs->page, id);
 
 		j = 0;
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, "%d", uargs->offset);
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, "(%u,%u)",
+		values[j++] = psprintf("%d", uargs->offset);
+		values[j++] = psprintf("(%u,%u)",
 							   BlockIdGetBlockNumber(&(itup->t_tid.ip_blkid)),
 							   itup->t_tid.ip_posid);
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, "%d", (int) IndexTupleSize(itup));
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, "%c", IndexTupleHasNulls(itup) ? 't' : 'f');
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, "%c", IndexTupleHasVarwidths(itup) ? 't' : 'f');
+		values[j++] = psprintf("%d", (int) IndexTupleSize(itup));
+		values[j++] = psprintf("%c", IndexTupleHasNulls(itup) ? 't' : 'f');
+		values[j++] = psprintf("%c", IndexTupleHasVarwidths(itup) ? 't' : 'f');
 
 		ptr = (char *) itup + IndexInfoFindDataOffset(itup->t_info);
 		dlen = IndexTupleSize(itup) - IndexInfoFindDataOffset(itup->t_info);
@@ -477,18 +458,12 @@ bt_metap(PG_FUNCTION_ARGS)
 		elog(ERROR, "return type must be a row type");
 
 	j = 0;
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", metad->btm_magic);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", metad->btm_version);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", metad->btm_root);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", metad->btm_level);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", metad->btm_fastroot);
-	values[j] = palloc(32);
-	snprintf(values[j++], 32, "%d", metad->btm_fastlevel);
+	values[j++] = psprintf("%d", metad->btm_magic);
+	values[j++] = psprintf("%d", metad->btm_version);
+	values[j++] = psprintf("%d", metad->btm_root);
+	values[j++] = psprintf("%d", metad->btm_level);
+	values[j++] = psprintf("%d", metad->btm_fastroot);
+	values[j++] = psprintf("%d", metad->btm_fastlevel);
 
 	tuple = BuildTupleFromCStrings(TupleDescGetAttInMetadata(tupleDesc),
 								   values);

contrib/pgstattuple/pgstatindex.c

@@ -271,39 +271,29 @@ pgstatindex_impl(Relation rel, FunctionCallInfo fcinfo)
 			elog(ERROR, "return type must be a row type");
 
 		j = 0;
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, "%d", indexStat.version);
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, "%d", indexStat.level);
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, INT64_FORMAT,
+		values[j++] = psprintf("%d", indexStat.version);
+		values[j++] = psprintf("%d", indexStat.level);
+		values[j++] = psprintf(INT64_FORMAT,
 				 (indexStat.root_pages +
 				  indexStat.leaf_pages +
 				  indexStat.internal_pages +
 				  indexStat.deleted_pages +
 				  indexStat.empty_pages) * BLCKSZ);
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, "%u", indexStat.root_blkno);
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, INT64_FORMAT, indexStat.internal_pages);
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, INT64_FORMAT, indexStat.leaf_pages);
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, INT64_FORMAT, indexStat.empty_pages);
-		values[j] = palloc(32);
-		snprintf(values[j++], 32, INT64_FORMAT, indexStat.deleted_pages);
-		values[j] = palloc(32);
+		values[j++] = psprintf("%u", indexStat.root_blkno);
+		values[j++] = psprintf(INT64_FORMAT, indexStat.internal_pages);
+		values[j++] = psprintf(INT64_FORMAT, indexStat.leaf_pages);
+		values[j++] = psprintf(INT64_FORMAT, indexStat.empty_pages);
+		values[j++] = psprintf(INT64_FORMAT, indexStat.deleted_pages);
 		if (indexStat.max_avail > 0)
-			snprintf(values[j++], 32, "%.2f",
+			values[j++] = psprintf("%.2f",
 					 100.0 - (double) indexStat.free_space / (double) indexStat.max_avail * 100.0);
 		else
-			snprintf(values[j++], 32, "NaN");
-		values[j] = palloc(32);
+			values[j++] = pstrdup("NaN");
 		if (indexStat.leaf_pages > 0)
-			snprintf(values[j++], 32, "%.2f",
+			values[j++] = psprintf("%.2f",
 					 (double) indexStat.fragments / (double) indexStat.leaf_pages * 100.0);
 		else
-			snprintf(values[j++], 32, "NaN");
+			values[j++] = pstrdup("NaN");
 
 		tuple = BuildTupleFromCStrings(TupleDescGetAttInMetadata(tupleDesc),
 									   values);

doc/src/sgml/xtypes.sgml

@@ -108,8 +108,7 @@ complex_out(PG_FUNCTION_ARGS)
     Complex    *complex = (Complex *) PG_GETARG_POINTER(0);
     char       *result;
 
-    result = (char *) palloc(100);
-    snprintf(result, 100, "(%g,%g)", complex->x, complex->y);
+    result = psprintf("(%g,%g)", complex->x, complex->y);
     PG_RETURN_CSTRING(result);
 }
 ]]>

src/backend/access/transam/multixact.c

@@ -2757,8 +2757,7 @@ pg_get_multixact_members(PG_FUNCTION_ARGS)
 		HeapTuple	tuple;
 		char	   *values[2];
 
-		values[0] = palloc(32);
-		sprintf(values[0], "%u", multi->members[multi->iter].xid);
+		values[0] = psprintf("%u", multi->members[multi->iter].xid);
 		values[1] = mxstatus_to_string(multi->members[multi->iter].status);
 
 		tuple = BuildTupleFromCStrings(funccxt->attinmeta, values);

src/backend/commands/define.c

@@ -56,12 +56,7 @@ defGetString(DefElem *def)
 	switch (nodeTag(def->arg))
 	{
 		case T_Integer:
-			{
-				char	   *str = palloc(32);
-
-				snprintf(str, 32, "%ld", (long) intVal(def->arg));
-				return str;
-			}
+			return psprintf("%ld", (long) intVal(def->arg));
 		case T_Float:
 
 			/*

src/backend/optimizer/plan/subselect.c

@@ -778,10 +778,7 @@ build_subplan(PlannerInfo *root, Plan *plan, PlannerInfo *subroot,
 		sprintf(splan->plan_name + offset, ")");
 	}
 	else
-	{
-		splan->plan_name = palloc(32);
-		sprintf(splan->plan_name, "SubPlan %d", splan->plan_id);
-	}
+		splan->plan_name = psprintf("SubPlan %d", splan->plan_id);
 
 	/* Lastly, fill in the cost estimates for use later */
 	cost_subplan(root, splan, plan);
@@ -2600,8 +2597,7 @@ SS_make_initplan_from_plan(PlannerInfo *root, Plan *plan,
 	node->setParam = list_make1_int(prm->paramid);
 
 	/* Label the subplan for EXPLAIN purposes */
-	node->plan_name = palloc(64);
-	sprintf(node->plan_name, "InitPlan %d (returns $%d)",
+	node->plan_name = psprintf("InitPlan %d (returns $%d)",
 			node->plan_id, prm->paramid);
 
 	return prm;

src/backend/parser/parse_type.c

@@ -313,8 +313,7 @@ typenameTypeMod(ParseState *pstate, const TypeName *typeName, Type typ)
 
 			if (IsA(&ac->val, Integer))
 			{
-				cstr = (char *) palloc(32);
-				snprintf(cstr, 32, "%ld", (long) ac->val.val.ival);
+				cstr = psprintf("%ld", (long) ac->val.val.ival);
 			}
 			else if (IsA(&ac->val, Float) ||
 					 IsA(&ac->val, String))

src/backend/storage/smgr/md.c

@@ -1649,9 +1649,7 @@ _mdfd_segpath(SMgrRelation reln, ForkNumber forknum, BlockNumber segno)
 
 	if (segno > 0)
 	{
-		/* be sure we have enough space for the '.segno' */
-		fullpath = (char *) palloc(strlen(path) + 12);
-		sprintf(fullpath, "%s.%u", path, segno);
+		fullpath = psprintf("%s.%u", path, segno);
 		pfree(path);
 	}
 	else

src/backend/utils/adt/date.c

@@ -91,14 +91,12 @@ anytime_typmodin(bool istz, ArrayType *ta)
 static char *
 anytime_typmodout(bool istz, int32 typmod)
 {
-	char	   *res = (char *) palloc(64);
 	const char *tz = istz ? " with time zone" : " without time zone";
 
 	if (typmod >= 0)
-		snprintf(res, 64, "(%d)%s", (int) typmod, tz);
+		return psprintf("(%d)%s", (int) typmod, tz);
 	else
-		snprintf(res, 64, "%s", tz);
-	return res;
+		return psprintf("%s", tz);
 }
 
 

src/backend/utils/adt/timestamp.c

@@ -116,15 +116,12 @@ anytimestamp_typmodin(bool istz, ArrayType *ta)
 static char *
 anytimestamp_typmodout(bool istz, int32 typmod)
 {
-	char	   *res = (char *) palloc(64);
 	const char *tz = istz ? " with time zone" : " without time zone";
 
 	if (typmod >= 0)
-		snprintf(res, 64, "(%d)%s", (int) typmod, tz);
+		return psprintf("(%d)%s", (int) typmod, tz);
 	else
-		snprintf(res, 64, "%s", tz);
-
-	return res;
+		return psprintf("%s", tz);
 }
 
 

src/backend/utils/fmgr/funcapi.c

@@ -1205,8 +1205,7 @@ build_function_result_tupdesc_d(Datum proallargtypes,
 		if (pname == NULL || pname[0] == '\0')
 		{
 			/* Parameter is not named, so gin up a column name */
-			pname = (char *) palloc(32);
-			snprintf(pname, 32, "column%d", numoutargs + 1);
+			pname = psprintf("column%d", numoutargs + 1);
 		}
 		outargnames[numoutargs] = pname;
 		numoutargs++;

src/test/regress/regress.c

@@ -269,15 +269,11 @@ widget_in(char *str)
 char *
 widget_out(WIDGET * widget)
 {
-	char	   *result;
-
 	if (widget == NULL)
 		return NULL;
 
-	result = (char *) palloc(60);
-	sprintf(result, "(%g,%g,%g)",
+	return psprintf("(%g,%g,%g)",
 			widget->center.x, widget->center.y, widget->radius);
-	return result;
 }
 
 PG_FUNCTION_INFO_V1(pt_in_widget);

src/tutorial/complex.c

@@ -73,8 +73,7 @@ complex_out(PG_FUNCTION_ARGS)
 	Complex    *complex = (Complex *) PG_GETARG_POINTER(0);
 	char	   *result;
 
-	result = (char *) palloc(100);
-	snprintf(result, 100, "(%g,%g)", complex->x, complex->y);
+	result = psprintf("(%g,%g)", complex->x, complex->y);
 	PG_RETURN_CSTRING(result);
 }