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

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