On Wed, Jul 20, 2022 at 03:14:35AM +0000, tanghy.f...@fujitsu.com wrote: > Your fix LGTM so please allow me to merge it in the attached patch. > Based on your rebased version, now this new patch version is V3.
What about the argument of upthread where we could use a goto in functions where there are multiple pattern validation checks? Per se v4 attached. -- Michael
From ccc8bb83baf618ea1a481193403a9009cd4a24a5 Mon Sep 17 00:00:00 2001
From: Michael Paquier <mich...@paquier.xyz>
Date: Wed, 20 Jul 2022 12:47:52 +0900
Subject: [PATCH v4] fix the memory leak in psql describe
---
src/bin/psql/describe.c | 239 +++++++++++++++++++++++++++++++++++-----
1 file changed, 212 insertions(+), 27 deletions(-)
diff --git a/src/bin/psql/describe.c b/src/bin/psql/describe.c
index 88d92a08ae..1c40cc6d59 100644
--- a/src/bin/psql/describe.c
+++ b/src/bin/psql/describe.c
@@ -112,7 +112,10 @@ describeAggregates(const char *pattern, bool verbose, bool showSystem)
"n.nspname", "p.proname", NULL,
"pg_catalog.pg_function_is_visible(p.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2, 4;");
@@ -182,7 +185,10 @@ describeAccessMethods(const char *pattern, bool verbose)
NULL, "amname", NULL,
NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1;");
@@ -244,7 +250,10 @@ describeTablespaces(const char *pattern, bool verbose)
NULL, "spcname", NULL,
NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1;");
@@ -534,7 +543,9 @@ describeFunctions(const char *functypes, const char *func_pattern,
"n.nspname", "p.proname", NULL,
"pg_catalog.pg_function_is_visible(p.oid)",
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
for (int i = 0; i < num_arg_patterns; i++)
{
@@ -561,7 +572,9 @@ describeFunctions(const char *functypes, const char *func_pattern,
true, false,
nspname, typname, ft, tiv,
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
}
else
{
@@ -599,6 +612,10 @@ describeFunctions(const char *functypes, const char *func_pattern,
PQclear(res);
return true;
+
+error_return:
+ termPQExpBuffer(&buf);
+ return false;
}
@@ -682,7 +699,10 @@ describeTypes(const char *pattern, bool verbose, bool showSystem)
"pg_catalog.format_type(t.oid, NULL)",
"pg_catalog.pg_type_is_visible(t.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -836,7 +856,9 @@ describeOperators(const char *oper_pattern,
"n.nspname", "o.oprname", NULL,
"pg_catalog.pg_operator_is_visible(o.oid)",
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
if (num_arg_patterns == 1)
appendPQExpBufferStr(&buf, " AND o.oprleft = 0\n");
@@ -866,7 +888,9 @@ describeOperators(const char *oper_pattern,
true, false,
nspname, typname, ft, tiv,
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
}
else
{
@@ -890,6 +914,10 @@ describeOperators(const char *oper_pattern,
PQclear(res);
return true;
+
+error_return:
+ termPQExpBuffer(&buf);
+ return false;
}
@@ -953,7 +981,10 @@ listAllDbs(const char *pattern, bool verbose)
if (!validateSQLNamePattern(&buf, pattern, false, false,
NULL, "d.datname", NULL, NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1;");
res = PSQLexec(buf.data);
@@ -1106,7 +1137,10 @@ permissionsList(const char *pattern)
"n.nspname", "c.relname", NULL,
"n.nspname !~ '^pg_' AND pg_catalog.pg_table_is_visible(c.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -1177,16 +1211,15 @@ listDefaultACLs(const char *pattern)
"pg_catalog.pg_get_userbyid(d.defaclrole)",
NULL,
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2, 3;");
res = PSQLexec(buf.data);
if (!res)
- {
- termPQExpBuffer(&buf);
- return false;
- }
+ goto error_return;
myopt.nullPrint = NULL;
printfPQExpBuffer(&buf, _("Default access privileges"));
@@ -1200,6 +1233,10 @@ listDefaultACLs(const char *pattern)
termPQExpBuffer(&buf);
PQclear(res);
return true;
+
+error_return:
+ termPQExpBuffer(&buf);
+ return false;
}
@@ -1253,7 +1290,9 @@ objectDescription(const char *pattern, bool showSystem)
false, "n.nspname", "pgc.conname", NULL,
"pg_catalog.pg_table_is_visible(c.oid)",
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
/* Domain constraint descriptions */
appendPQExpBuffer(&buf,
@@ -1277,7 +1316,9 @@ objectDescription(const char *pattern, bool showSystem)
false, "n.nspname", "pgc.conname", NULL,
"pg_catalog.pg_type_is_visible(t.oid)",
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
/* Operator class descriptions */
appendPQExpBuffer(&buf,
@@ -1301,7 +1342,9 @@ objectDescription(const char *pattern, bool showSystem)
"n.nspname", "o.opcname", NULL,
"pg_catalog.pg_opclass_is_visible(o.oid)",
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
/* Operator family descriptions */
appendPQExpBuffer(&buf,
@@ -1325,7 +1368,9 @@ objectDescription(const char *pattern, bool showSystem)
"n.nspname", "opf.opfname", NULL,
"pg_catalog.pg_opfamily_is_visible(opf.oid)",
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
/* Rule descriptions (ignore rules for views) */
appendPQExpBuffer(&buf,
@@ -1348,7 +1393,9 @@ objectDescription(const char *pattern, bool showSystem)
"n.nspname", "r.rulename", NULL,
"pg_catalog.pg_table_is_visible(c.oid)",
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
/* Trigger descriptions */
appendPQExpBuffer(&buf,
@@ -1370,7 +1417,9 @@ objectDescription(const char *pattern, bool showSystem)
"n.nspname", "t.tgname", NULL,
"pg_catalog.pg_table_is_visible(c.oid)",
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
appendPQExpBufferStr(&buf,
") AS tt\n"
@@ -1393,6 +1442,10 @@ objectDescription(const char *pattern, bool showSystem)
PQclear(res);
return true;
+
+error_return:
+ termPQExpBuffer(&buf);
+ return false;
}
@@ -1428,7 +1481,10 @@ describeTableDetails(const char *pattern, bool verbose, bool showSystem)
"n.nspname", "c.relname", NULL,
"pg_catalog.pg_table_is_visible(c.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 2, 3;");
@@ -3614,7 +3670,10 @@ describeRoles(const char *pattern, bool verbose, bool showSystem)
if (!validateSQLNamePattern(&buf, pattern, false, false,
NULL, "r.rolname", NULL, NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1;");
@@ -3739,11 +3798,15 @@ listDbRoleSettings(const char *pattern, const char *pattern2)
gettext_noop("Settings"));
if (!validateSQLNamePattern(&buf, pattern, false, false,
NULL, "r.rolname", NULL, NULL, &havewhere, 1))
- return false;
+ {
+ goto error_return;
+ }
if (!validateSQLNamePattern(&buf, pattern2, havewhere, false,
NULL, "d.datname", NULL, NULL,
NULL, 1))
- return false;
+ {
+ goto error_return;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
res = PSQLexec(buf.data);
@@ -3779,6 +3842,10 @@ listDbRoleSettings(const char *pattern, const char *pattern2)
PQclear(res);
return true;
+
+error_return:
+ termPQExpBuffer(&buf);
+ return false;
}
@@ -3940,7 +4007,10 @@ listTables(const char *tabtypes, const char *pattern, bool verbose, bool showSys
"n.nspname", "c.relname", NULL,
"pg_catalog.pg_table_is_visible(c.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1,2;");
@@ -4157,7 +4227,10 @@ listPartitionedTables(const char *reltypes, const char *pattern, bool verbose)
"n.nspname", "c.relname", NULL,
"pg_catalog.pg_table_is_visible(c.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBuffer(&buf, "ORDER BY \"Schema\", %s%s\"Name\";",
mixed_output ? "\"Type\" DESC, " : "",
@@ -4233,7 +4306,10 @@ listLanguages(const char *pattern, bool verbose, bool showSystem)
if (!validateSQLNamePattern(&buf, pattern, false, false,
NULL, "l.lanname", NULL, NULL,
NULL, 2))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
if (!showSystem && !pattern)
appendPQExpBufferStr(&buf, "WHERE l.lanplcallfoid != 0\n");
@@ -4319,7 +4395,10 @@ listDomains(const char *pattern, bool verbose, bool showSystem)
"n.nspname", "t.typname", NULL,
"pg_catalog.pg_type_is_visible(t.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -4395,7 +4474,10 @@ listConversions(const char *pattern, bool verbose, bool showSystem)
"n.nspname", "c.conname", NULL,
"pg_catalog.pg_conversion_is_visible(c.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -4542,7 +4624,10 @@ listEventTriggers(const char *pattern, bool verbose)
if (!validateSQLNamePattern(&buf, pattern, false, false,
NULL, "evtname", NULL, NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1");
@@ -4638,7 +4723,10 @@ listExtendedStats(const char *pattern)
"es.stxnamespace::pg_catalog.regnamespace::pg_catalog.text", "es.stxname",
NULL, "pg_catalog.pg_statistics_obj_is_visible(es.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -4742,7 +4830,9 @@ listCasts(const char *pattern, bool verbose)
"pg_catalog.format_type(ts.oid, NULL)",
"pg_catalog.pg_type_is_visible(ts.oid)",
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
appendPQExpBufferStr(&buf, ") OR (true");
@@ -4751,7 +4841,9 @@ listCasts(const char *pattern, bool verbose)
"pg_catalog.format_type(tt.oid, NULL)",
"pg_catalog.pg_type_is_visible(tt.oid)",
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
appendPQExpBufferStr(&buf, ") )\nORDER BY 1, 2;");
@@ -4770,6 +4862,10 @@ listCasts(const char *pattern, bool verbose)
PQclear(res);
return true;
+
+error_return:
+ termPQExpBuffer(&buf);
+ return false;
}
/*
@@ -4851,7 +4947,10 @@ listCollations(const char *pattern, bool verbose, bool showSystem)
"n.nspname", "c.collname", NULL,
"pg_catalog.pg_collation_is_visible(c.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -4914,7 +5013,10 @@ listSchemas(const char *pattern, bool verbose, bool showSystem)
NULL, "n.nspname", NULL,
NULL,
NULL, 2))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1;");
@@ -5029,7 +5131,10 @@ listTSParsers(const char *pattern, bool verbose)
"n.nspname", "p.prsname", NULL,
"pg_catalog.pg_ts_parser_is_visible(p.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -5072,7 +5177,10 @@ listTSParsersVerbose(const char *pattern)
"n.nspname", "p.prsname", NULL,
"pg_catalog.pg_ts_parser_is_visible(p.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -5215,7 +5323,10 @@ describeOneTSParser(const char *oid, const char *nspname, const char *prsname)
res = PSQLexec(buf.data);
termPQExpBuffer(&buf);
if (!res)
+ {
+ termPQExpBuffer(&title);
return false;
+ }
myopt.nullPrint = NULL;
if (nspname)
@@ -5281,7 +5392,10 @@ listTSDictionaries(const char *pattern, bool verbose)
"n.nspname", "d.dictname", NULL,
"pg_catalog.pg_ts_dict_is_visible(d.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -5344,7 +5458,10 @@ listTSTemplates(const char *pattern, bool verbose)
"n.nspname", "t.tmplname", NULL,
"pg_catalog.pg_ts_template_is_visible(t.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -5396,7 +5513,10 @@ listTSConfigs(const char *pattern, bool verbose)
"n.nspname", "c.cfgname", NULL,
"pg_catalog.pg_ts_config_is_visible(c.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -5440,7 +5560,10 @@ listTSConfigsVerbose(const char *pattern)
"n.nspname", "c.cfgname", NULL,
"pg_catalog.pg_ts_config_is_visible(c.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 3, 2;");
@@ -5613,7 +5736,10 @@ listForeignDataWrappers(const char *pattern, bool verbose)
if (!validateSQLNamePattern(&buf, pattern, false, false,
NULL, "fdwname", NULL, NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1;");
@@ -5687,7 +5813,10 @@ listForeignServers(const char *pattern, bool verbose)
if (!validateSQLNamePattern(&buf, pattern, false, false,
NULL, "s.srvname", NULL, NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1;");
@@ -5740,7 +5869,10 @@ listUserMappings(const char *pattern, bool verbose)
if (!validateSQLNamePattern(&buf, pattern, false, false,
NULL, "um.srvname", "um.usename", NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -5810,7 +5942,10 @@ listForeignTables(const char *pattern, bool verbose)
"n.nspname", "c.relname", NULL,
"pg_catalog.pg_table_is_visible(c.oid)",
NULL, 3))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2;");
@@ -5859,7 +5994,10 @@ listExtensions(const char *pattern)
NULL, "e.extname", NULL,
NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1;");
@@ -5900,7 +6038,10 @@ listExtensionContents(const char *pattern)
NULL, "e.extname", NULL,
NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1;");
@@ -6023,15 +6164,18 @@ validateSQLNamePattern(PQExpBuffer buf, const char *pattern, bool have_where,
if (PQdb(pset.db) == NULL)
{
pg_log_error("You are currently not connected to a database.");
+ termPQExpBuffer(&dbbuf);
return false;
}
if (strcmp(PQdb(pset.db), dbbuf.data) != 0)
{
pg_log_error("cross-database references are not implemented: %s",
pattern);
+ termPQExpBuffer(&dbbuf);
return false;
}
}
+ termPQExpBuffer(&dbbuf);
return true;
}
@@ -6090,7 +6234,10 @@ listPublications(const char *pattern)
NULL, "pubname", NULL,
NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1;");
@@ -6205,7 +6352,10 @@ describePublications(const char *pattern)
NULL, "pubname", NULL,
NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 2;");
@@ -6417,7 +6567,10 @@ describeSubscriptions(const char *pattern, bool verbose)
NULL, "subname", NULL,
NULL,
NULL, 1))
+ {
+ termPQExpBuffer(&buf);
return false;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1;");
@@ -6521,7 +6674,9 @@ listOperatorClasses(const char *access_method_pattern,
if (!validateSQLNamePattern(&buf, access_method_pattern,
false, false, NULL, "am.amname", NULL, NULL,
&have_where, 1))
- return false;
+ {
+ goto error_return;
+ }
if (type_pattern)
{
/* Match type name pattern against either internal or external name */
@@ -6530,7 +6685,9 @@ listOperatorClasses(const char *access_method_pattern,
"pg_catalog.format_type(t.oid, NULL)",
"pg_catalog.pg_type_is_visible(t.oid)",
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
}
appendPQExpBufferStr(&buf, "ORDER BY 1, 2, 4;");
@@ -6549,6 +6706,10 @@ listOperatorClasses(const char *access_method_pattern,
PQclear(res);
return true;
+
+error_return:
+ termPQExpBuffer(&buf);
+ return false;
}
/*
@@ -6597,7 +6758,9 @@ listOperatorFamilies(const char *access_method_pattern,
if (!validateSQLNamePattern(&buf, access_method_pattern,
false, false, NULL, "am.amname", NULL, NULL,
&have_where, 1))
- return false;
+ {
+ goto error_return;
+ }
if (type_pattern)
{
appendPQExpBuffer(&buf,
@@ -6614,7 +6777,9 @@ listOperatorFamilies(const char *access_method_pattern,
"pg_catalog.format_type(t.oid, NULL)",
"pg_catalog.pg_type_is_visible(t.oid)",
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
appendPQExpBufferStr(&buf, " )\n");
}
@@ -6634,6 +6799,10 @@ listOperatorFamilies(const char *access_method_pattern,
PQclear(res);
return true;
+
+error_return:
+ termPQExpBuffer(&buf);
+ return false;
}
/*
@@ -6696,13 +6865,17 @@ listOpFamilyOperators(const char *access_method_pattern,
false, false, NULL, "am.amname",
NULL, NULL,
&have_where, 1))
- return false;
+ {
+ goto error_return;
+ }
if (family_pattern)
if (!validateSQLNamePattern(&buf, family_pattern, have_where, false,
"nsf.nspname", "of.opfname", NULL, NULL,
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2,\n"
" o.amoplefttype = o.amoprighttype DESC,\n"
@@ -6725,6 +6898,10 @@ listOpFamilyOperators(const char *access_method_pattern,
PQclear(res);
return true;
+
+error_return:
+ termPQExpBuffer(&buf);
+ return false;
}
/*
@@ -6784,12 +6961,16 @@ listOpFamilyFunctions(const char *access_method_pattern,
false, false, NULL, "am.amname",
NULL, NULL,
&have_where, 1))
- return false;
+ {
+ goto error_return;
+ }
if (family_pattern)
if (!validateSQLNamePattern(&buf, family_pattern, have_where, false,
"ns.nspname", "of.opfname", NULL, NULL,
NULL, 3))
- return false;
+ {
+ goto error_return;
+ }
appendPQExpBufferStr(&buf, "ORDER BY 1, 2,\n"
" ap.amproclefttype = ap.amprocrighttype DESC,\n"
@@ -6810,6 +6991,10 @@ listOpFamilyFunctions(const char *access_method_pattern,
PQclear(res);
return true;
+
+error_return:
+ termPQExpBuffer(&buf);
+ return false;
}
/*
--
2.36.1
signature.asc
Description: PGP signature
