/src/libqcow/ossfuzz/file_fuzzer.cc
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * OSS-Fuzz target for libqcow file type |
3 | | * |
4 | | * Copyright (C) 2010-2023, Joachim Metz <joachim.metz@gmail.com> |
5 | | * |
6 | | * Refer to AUTHORS for acknowledgements. |
7 | | * |
8 | | * This program is free software: you can redistribute it and/or modify |
9 | | * it under the terms of the GNU Lesser General Public License as published by |
10 | | * the Free Software Foundation, either version 3 of the License, or |
11 | | * (at your option) any later version. |
12 | | * |
13 | | * This program is distributed in the hope that it will be useful, |
14 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | | * GNU General Public License for more details. |
17 | | * |
18 | | * You should have received a copy of the GNU Lesser General Public License |
19 | | * along with this program. If not, see <https://www.gnu.org/licenses/>. |
20 | | */ |
21 | | |
22 | | #include <stddef.h> |
23 | | #include <stdint.h> |
24 | | |
25 | | /* Note that some of the OSS-Fuzz engines use C++ |
26 | | */ |
27 | | extern "C" { |
28 | | |
29 | | #include "ossfuzz_libbfio.h" |
30 | | #include "ossfuzz_libqcow.h" |
31 | | |
32 | | #if !defined( LIBQCOW_HAVE_BFIO ) |
33 | | |
34 | | /* Opens a file using a Basic File IO (bfio) handle |
35 | | * Returns 1 if successful or -1 on error |
36 | | */ |
37 | | LIBQCOW_EXTERN \ |
38 | | int libqcow_file_open_file_io_handle( |
39 | | libqcow_file_t *file, |
40 | | libbfio_handle_t *file_io_handle, |
41 | | int access_flags, |
42 | | libqcow_error_t **error ); |
43 | | |
44 | | #endif /* !defined( LIBQCOW_HAVE_BFIO ) */ |
45 | | |
46 | | int LLVMFuzzerTestOneInput( |
47 | | const uint8_t *data, |
48 | | size_t size ) |
49 | 845 | { |
50 | 845 | libbfio_handle_t *file_io_handle = NULL; |
51 | 845 | libqcow_file_t *file = NULL; |
52 | | |
53 | 845 | if( libbfio_memory_range_initialize( |
54 | 845 | &file_io_handle, |
55 | 845 | NULL ) != 1 ) |
56 | 0 | { |
57 | 0 | return( 0 ); |
58 | 0 | } |
59 | 845 | if( libbfio_memory_range_set( |
60 | 845 | file_io_handle, |
61 | 845 | (uint8_t *) data, |
62 | 845 | size, |
63 | 845 | NULL ) != 1 ) |
64 | 0 | { |
65 | 0 | goto on_error_libbfio; |
66 | 0 | } |
67 | 845 | if( libqcow_file_initialize( |
68 | 845 | &file, |
69 | 845 | NULL ) != 1 ) |
70 | 0 | { |
71 | 0 | goto on_error_libbfio; |
72 | 0 | } |
73 | 845 | if( libqcow_file_open_file_io_handle( |
74 | 845 | file, |
75 | 845 | file_io_handle, |
76 | 845 | LIBQCOW_OPEN_READ, |
77 | 845 | NULL ) != 1 ) |
78 | 800 | { |
79 | 800 | goto on_error_libqcow; |
80 | 800 | } |
81 | 45 | libqcow_file_close( |
82 | 45 | file, |
83 | 45 | NULL ); |
84 | | |
85 | 845 | on_error_libqcow: |
86 | 845 | libqcow_file_free( |
87 | 845 | &file, |
88 | 845 | NULL ); |
89 | | |
90 | 845 | on_error_libbfio: |
91 | 845 | libbfio_handle_free( |
92 | 845 | &file_io_handle, |
93 | 845 | NULL ); |
94 | | |
95 | 845 | return( 0 ); |
96 | 845 | } |
97 | | |
98 | | } /* extern "C" */ |
99 | | |