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A test case for Bug#49972 (Crash in prepared statements).

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This commit is contained in:
Alexander Nozdrin
2009-12-29 18:50:01 +03:00
parent 3b311f399d
commit 93613d4e07
1 changed files with 110 additions and 0 deletions
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110
tests/mysql_client_test.c
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@ -18935,6 +18935,115 @@ static void test_bug44495()
DBUG_VOID_RETURN;
}
/*
Bug#49972: Crash in prepared statements.
The following case lead to a server crash:
- Use binary protocol;
- Prepare a statement with OUT-parameter;
- Execute the statement;
- Cause re-prepare of the statement (change dependencies);
- Execute the statement again -- crash here.
*/
static void test_bug49972()
{
int rc;
MYSQL_STMT *stmt;
MYSQL_BIND in_param_bind;
MYSQL_BIND out_param_bind;
int int_data;
my_bool is_null;
DBUG_ENTER("test_bug49972");
myheader("test_49972");
rc= mysql_query(mysql, "DROP FUNCTION IF EXISTS f1");
myquery(rc);
rc= mysql_query(mysql, "DROP PROCEDURE IF EXISTS p1");
myquery(rc);
rc= mysql_query(mysql, "CREATE FUNCTION f1() RETURNS INT RETURN 1");
myquery(rc);
rc= mysql_query(mysql, "CREATE PROCEDURE p1(IN a INT, OUT b INT) SET b = a");
myquery(rc);
stmt= mysql_simple_prepare(mysql, "CALL p1((SELECT f1()), ?)");
check_stmt(stmt);
bzero((char *) &in_param_bind, sizeof (in_param_bind));
in_param_bind.buffer_type= MYSQL_TYPE_LONG;
in_param_bind.buffer= (char *) &int_data;
in_param_bind.length= 0;
in_param_bind.is_null= 0;
rc= mysql_stmt_bind_param(stmt, &in_param_bind);
rc= mysql_stmt_execute(stmt);
check_execute(stmt, rc);
{
bzero(&out_param_bind, sizeof (out_param_bind));
out_param_bind.buffer_type= MYSQL_TYPE_LONG;
out_param_bind.is_null= &is_null;
out_param_bind.buffer= &int_data;
out_param_bind.buffer_length= sizeof (int_data);
rc= mysql_stmt_bind_result(stmt, &out_param_bind);
check_execute(stmt, rc);
rc= mysql_stmt_fetch(stmt);
rc= mysql_stmt_fetch(stmt);
DBUG_ASSERT(rc == MYSQL_NO_DATA);
mysql_stmt_next_result(stmt);
mysql_stmt_fetch(stmt);
}
rc= mysql_query(mysql, "DROP FUNCTION f1");
myquery(rc);
rc= mysql_query(mysql, "CREATE FUNCTION f1() RETURNS INT RETURN 1");
myquery(rc);
rc= mysql_stmt_execute(stmt);
check_execute(stmt, rc);
{
bzero(&out_param_bind, sizeof (out_param_bind));
out_param_bind.buffer_type= MYSQL_TYPE_LONG;
out_param_bind.is_null= &is_null;
out_param_bind.buffer= &int_data;
out_param_bind.buffer_length= sizeof (int_data);
rc= mysql_stmt_bind_result(stmt, &out_param_bind);
check_execute(stmt, rc);
rc= mysql_stmt_fetch(stmt);
rc= mysql_stmt_fetch(stmt);
DBUG_ASSERT(rc == MYSQL_NO_DATA);
mysql_stmt_next_result(stmt);
mysql_stmt_fetch(stmt);
}
mysql_stmt_close(stmt);
rc= mysql_query(mysql, "DROP PROCEDURE p1");
myquery(rc);
rc= mysql_query(mysql, "DROP FUNCTION f1");
myquery(rc);
DBUG_VOID_RETURN;
}
/*
Read and parse arguments and MySQL options from my.cnf
*/
@ -19264,6 +19373,7 @@ static struct my_tests_st my_tests[]= {
#endif
{ "test_bug41078", test_bug41078 },
{ "test_bug44495", test_bug44495 },
{ "test_bug49972", test_bug49972 },
{ 0, 0 }
};