1  #include "blkidP.h"
       2  #include "fuzz.h"
       3  
       4  #include <stdlib.h>
       5  #include <unistd.h>
       6  
       7  static int process_file(const char *name)
       8  {
       9      int rc = -1;
      10      blkid_probe pr = blkid_new_probe_from_filename(name);
      11      if (pr != NULL) {
      12          blkid_probe_enable_partitions(pr, TRUE);
      13          blkid_probe_set_partitions_flags(pr, FALSE);
      14          blkid_probe_enable_superblocks(pr, TRUE);
      15          blkid_probe_set_superblocks_flags(pr, BLKID_SUBLKS_DEFAULT | BLKID_SUBLKS_FSINFO | BLKID_SUBLKS_MAGIC | BLKID_SUBLKS_VERSION | BLKID_SUBLKS_BADCSUM);
      16          rc = blkid_do_safeprobe(pr) == -1 ? -1 : 0;
      17      }
      18      blkid_free_probe(pr);
      19      return rc;
      20  }
      21  
      22  int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
      23      int fd;
      24      char name[] = "/tmp/test-script-fuzz.XXXXXX";
      25  
      26      fd = mkostemp(name, O_RDWR|O_CREAT|O_EXCL|O_CLOEXEC);
      27      if (fd == -1)
      28          err(EXIT_FAILURE, "mkostemp() failed");
      29  
      30      if (write(fd, data, size) != (ssize_t)size)
      31          goto out;
      32  
      33      process_file(name);
      34  out:
      35      close(fd);
      36      unlink(name);
      37      return 0;
      38  }
      39  
      40  #ifndef FUZZ_TARGET
      41  int main(int argc, char **argv)
      42  {
      43      for (int i = 1; i < argc; i++) {
      44          printf("%s ", argv[i]);
      45          if (process_file(argv[i]) == 0)
      46              printf(" OK\n");
      47          else
      48              printf(" FAILED\n");
      49  
      50      }
      51  }
      52  #endif