1 /*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * SPDX-License-Identifier: GPL-2.0
4 *
5 * Unless required by applicable law or agreed to in writing, software
6 * distributed under the License is distributed on an "AS IS" BASIS,
7 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
8 * See the License for the specific language governing permissions and
9 * limitations under the License.
10 */
11
12 #include <cstddef>
13 #include <fcntl.h>
14 #include <unistd.h>
15 #include <cstdint>
16 #include <cstdlib>
17 #include "hccommon.h"
18
19 namespace OHOS {
HcFuzzTest(const uint8_t *data, const char *pathname, size_t size)20 bool HcFuzzTest(const uint8_t *data, const char *pathname, size_t size)
21 {
22 uint32_t value = 0;
23 uint32_t length = size > sizeof(uint32_t) ? sizeof(uint32_t) : size;
24 int ret = access("/mnt/f2fs_mount/", F_OK);
25 if (ret < 0) {
26 system("mkdir -p /mnt/f2fs_mount/");
27 system("mkfs.f2fs -d1 -t1 -O quota /data/image_f2fs");
28 system("losetup /dev/block/loop1 /data/image_f2fs");
29 system("mount -t f2fs /dev/block/loop1 /mnt/f2fs_mount/");
30 }
31
32 int fd = open(pathname, O_RDWR);
33 if (fd < 0) {
34 return false;
35 }
36
37 ret = read(fd, &value, sizeof(value));
38 if (ret < 0) {
39 close(fd);
40 return false;
41 }
42
43 ret = write(fd, data, length);
44 if (ret < 0) {
45 close(fd);
46 return false;
47 }
48 close(fd);
49 return true;
50 }
51 }