/* Break out of a chroot() environment in C */
static void break_out_of_chroot(void)
{
int rv;
struct stat st;
rtems_libio_use_global_env();
/* Perform deferred global location releases */
rv = stat(".", &st);
rtems_test_assert(rv == 0);
/* Perform deferred memory frees */
prevent_compiler_optimizations = malloc(1);
free(prevent_compiler_optimizations);
}
int main(
int argc,
char **argv
)
#endif
{
static const uintptr_t global_location_size [] = {
sizeof(rtems_filesystem_global_location_t)
};
int status;
void *opaque;
/*
* This test is the C equivalent of this sequence.
#mkdir /one
#mkdir /one/one
#touch /one/one.test
#touch /one/two/two.test
# an error case to ENOTSUP from chroot
# chroot
#chroot /one
#if !fileexists(/one/one.test) echo "SUCCESSFUL"
#if fileexists(/two/two.test) echo "SUCCESSFUL"
#rtems_set_private_env() ! reset at the global environment
#if fileexists(/one/one.test) echo "SUCESSFUL"
#if !fileexists(/two/two.test) echo "SUCCESSFUL"
*/
TEST_BEGIN();
status = mkdir( "/one", 0777);
rtems_test_assert( status == 0 );
status = mkdir( "/one/one", 0777);
rtems_test_assert( status == 0 );
status = mkdir( "/one/two", 0777);
rtems_test_assert( status == 0 );
touch( "/one/one.test" );
touch( "/one/two/two.test" );
puts( "chroot with bad path - expect ENOENT" );
status = chroot( "/three" );
rtems_test_assert( status == -1 );
rtems_test_assert( errno == ENOENT );
puts( "chroot with file - expect ENOTDIR" );
status = chroot( "/one/one.test" );
rtems_test_assert( status == -1 );
rtems_test_assert( errno == ENOTDIR );
puts( "allocate most of memory - attempt to fail chroot - expect ENOMEM" );
opaque = rtems_heap_greedy_allocate( global_location_size, 1 );
status = chroot( "/one" );
rtems_test_assert( status == -1 );
rtems_test_assert( errno == ENOMEM );
puts( "freeing the allocated memory" );
rtems_heap_greedy_free( opaque );
status = chroot( "/one" );
rtems_test_assert( status == 0 );
status = fileexists( "/one/one.test" );
printf( "%s on /one/one.test\n", (!status) ? "SUCCESS" : "FAILURE" );
status = fileexists( "/two/two.test" );
printf( "%s on /two/two.test\n", (status) ? "SUCCESS" : "FAILURE" );
puts( "Go back to global environment" );
rtems_libio_use_global_env();
status = fileexists( "/one/one.test" );
printf( "%s on /one/one.test\n", ( status) ? "SUCCESS" : "FAILURE" );
status = fileexists( "/two/two.test" );
printf( "%s on /two/two.test\n", (!status) ? "SUCCESS" : "FAILURE" );
TEST_END();
rtems_test_exit(0);
}