1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
2 
3 #include "device-internal.h"
4 #include "device-private.h"
5 #include "fd-util.h"
6 #include "fs-util.h"
7 #include "fuzz.h"
8 #include "tmpfile-util.h"
9 
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)10 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
11         _cleanup_(sd_device_unrefp) sd_device *dev = NULL;
12         _cleanup_(unlink_tempfilep) char filename[] = "/tmp/fuzz-udev-database.XXXXXX";
13         _cleanup_fclose_ FILE *f = NULL;
14 
15         if (!getenv("SYSTEMD_LOG_LEVEL"))
16                 log_set_max_level(LOG_CRIT);
17 
18         assert_se(fmkostemp_safe(filename, "r+", &f) == 0);
19         if (size != 0)
20                 assert_se(fwrite(data, size, 1, f) == 1);
21 
22         fflush(f);
23         assert_se(device_new_aux(&dev) >= 0);
24         (void) device_read_db_internal_filename(dev, filename);
25         return 0;
26 }
27