src/tests/fuzz-lxc-config-read.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include "config.h"
   4
   5 #include <stddef.h>
   6 #include <stdint.h>
   7
   8 #include "conf.h"
   9 #include "confile.h"
  10 #include "lxctest.h"
  11 #include "utils.h"
  12
  13 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
  14         int fd = -1;
  15         char tmpf[] = "/tmp/fuzz-lxc-config-read-XXXXXX";
  16         struct lxc_conf *conf = NULL;
  17
  18         /*
  19          * 100Kb should probably be enough to trigger all the issues
  20          * we're interested in without any timeouts
  21          */
  22         if (size > 102400)
  23                 return 0;
  24
  25         fd = lxc_make_tmpfile(tmpf, false);
  26         lxc_test_assert_abort(fd >= 0);
  27         lxc_write_nointr(fd, data, size);
  28         close(fd);
  29
  30         conf = lxc_conf_init();
  31         lxc_test_assert_abort(conf);
  32         lxc_config_read(tmpf, conf, false);
  33         lxc_conf_free(conf);
  34
  35         (void) unlink(tmpf);
  36         return 0;
  37 }