Fixed Bug #69667 segfault in php_pgsql_meta_data

Incomplete fix for #68741

Author: remicollet

ext/pgsql/pg_insert_002.phpt

@@ -0,0 +1,27 @@
+--TEST--
+PostgreSQL pg_select() - basic test using schema
+--SKIPIF--
+<?php include("skipif.inc"); ?>
+--FILE--
+<?php
+
+include('config.inc');
+
+$conn = pg_connect($conn_str);
+
+foreach (array('', '.', '..') as $table) {
+	var_dump(pg_insert($conn, '',  array('id' => 1, 'id2' => 1)));
+}
+?>
+Done
+--EXPECTF--
+
+Warning: pg_insert(): The table name must be specified in %s on line %d
+bool(false)
+
+Warning: pg_insert(): The table name must be specified in %s on line %d
+bool(false)
+
+Warning: pg_insert(): The table name must be specified in %s on line %d
+bool(false)
+Done

ext/pgsql/pgsql.c

@@ -5103,7 +5103,11 @@ PHP_PGSQL_API int php_pgsql_meta_data(PGconn *pg_link, const char *table_name, z
 
 	src = estrdup(table_name);
 	tmp_name = php_strtok_r(src, ".", &tmp_name2);
-	
+	if (!tmp_name) {
+		efree(src);
+		php_error_docref(NULL TSRMLS_CC, E_WARNING, "The table name must be specified");
+		return FAILURE;
+	}
 	if (!tmp_name2 || !*tmp_name2) {
 		/* Default schema */
 		tmp_name2 = tmp_name;
@@ -6111,7 +6115,8 @@ static int do_exec(smart_str *querystr, int expect, PGconn *pg_link, ulong opt T
 
 static inline void build_tablename(smart_str *querystr, PGconn *pg_link, const char *table)
 {
-	char *table_copy, *escaped, *token, *tmp;
+	char *table_copy, *escaped, *tmp;
+	const char *token;
 	size_t len;
 
 	/* schame.table should be "schame"."table" */