/src/libvsgpt/ossfuzz/volume_fuzzer.cc
Line | Count | Source |
1 | | /* |
2 | | * OSS-Fuzz target for libvsgpt volume type |
3 | | * |
4 | | * Copyright (C) 2019-2026, 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_libvsgpt.h" |
31 | | |
32 | | #if !defined( LIBVSGPT_HAVE_BFIO ) |
33 | | |
34 | | /* Opens a volume using a Basic File IO (bfio) handle |
35 | | * Returns 1 if successful or -1 on error |
36 | | */ |
37 | | LIBVSGPT_EXTERN \ |
38 | | int libvsgpt_volume_open_file_io_handle( |
39 | | libvsgpt_volume_t *volume, |
40 | | libbfio_handle_t *file_io_handle, |
41 | | int access_flags, |
42 | | libvsgpt_error_t **error ); |
43 | | |
44 | | #endif /* !defined( LIBVSGPT_HAVE_BFIO ) */ |
45 | | |
46 | | int LLVMFuzzerTestOneInput( |
47 | | const uint8_t *data, |
48 | | size_t size ) |
49 | 1.59k | { |
50 | 1.59k | uint8_t guid[ 16 ]; |
51 | | |
52 | 1.59k | libbfio_handle_t *file_io_handle = NULL; |
53 | 1.59k | libvsgpt_volume_t *volume = NULL; |
54 | 1.59k | uint32_t value_32bit = 0; |
55 | 1.59k | int number_of_partitions = 0; |
56 | | |
57 | 1.59k | if( libbfio_memory_range_initialize( |
58 | 1.59k | &file_io_handle, |
59 | 1.59k | NULL ) != 1 ) |
60 | 0 | { |
61 | 0 | return( 0 ); |
62 | 0 | } |
63 | 1.59k | if( libbfio_memory_range_set( |
64 | 1.59k | file_io_handle, |
65 | 1.59k | (uint8_t *) data, |
66 | 1.59k | size, |
67 | 1.59k | NULL ) != 1 ) |
68 | 0 | { |
69 | 0 | goto on_error_libbfio; |
70 | 0 | } |
71 | 1.59k | if( libvsgpt_volume_initialize( |
72 | 1.59k | &volume, |
73 | 1.59k | NULL ) != 1 ) |
74 | 0 | { |
75 | 0 | goto on_error_libbfio; |
76 | 0 | } |
77 | 1.59k | if( libvsgpt_volume_open_file_io_handle( |
78 | 1.59k | volume, |
79 | 1.59k | file_io_handle, |
80 | 1.59k | LIBVSGPT_OPEN_READ, |
81 | 1.59k | NULL ) != 1 ) |
82 | 1.49k | { |
83 | 1.49k | goto on_error_libvsgpt; |
84 | 1.49k | } |
85 | 99 | if( libvsgpt_volume_get_bytes_per_sector( |
86 | 99 | volume, |
87 | 99 | &value_32bit, |
88 | 99 | NULL ) != 1 ) |
89 | 0 | { |
90 | 0 | goto on_error_libvsgpt; |
91 | 0 | } |
92 | 99 | if( libvsgpt_volume_get_disk_identifier( |
93 | 99 | volume, |
94 | 99 | guid, |
95 | 99 | 16, |
96 | 99 | NULL ) != 1 ) |
97 | 0 | { |
98 | 0 | goto on_error_libvsgpt; |
99 | 0 | } |
100 | 99 | if( libvsgpt_volume_get_number_of_partitions( |
101 | 99 | volume, |
102 | 99 | &number_of_partitions, |
103 | 99 | NULL ) != 1 ) |
104 | 0 | { |
105 | 0 | goto on_error_libvsgpt; |
106 | 0 | } |
107 | 99 | libvsgpt_volume_close( |
108 | 99 | volume, |
109 | 99 | NULL ); |
110 | | |
111 | 1.59k | on_error_libvsgpt: |
112 | 1.59k | libvsgpt_volume_free( |
113 | 1.59k | &volume, |
114 | 1.59k | NULL ); |
115 | | |
116 | 1.59k | on_error_libbfio: |
117 | 1.59k | libbfio_handle_free( |
118 | 1.59k | &file_io_handle, |
119 | 1.59k | NULL ); |
120 | | |
121 | 1.59k | return( 0 ); |
122 | 1.59k | } |
123 | | |
124 | | } /* extern "C" */ |
125 | | |