xref: /aosp_15_r20/external/cronet/third_party/lss/tests/stat.c (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b)

/* Copyright 2021, Google Inc.  All rights reserved.
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#include "test_skel.h"

int main(int argc, char *argv[]) {
  int exit_status = 0;

  // Get two unique paths to play with.
  char foo[] = "tempfile.XXXXXX";
  int fd_foo = mkstemp(foo);
  assert(fd_foo != -1);

  // Make sure it exists.
  assert(access(foo, F_OK) == 0);

  // Make sure sys_stat() and a libc stat() implementation return the same
  // information.
  struct stat libc_stat;
  assert(stat(foo, &libc_stat) == 0);

  struct kernel_stat raw_stat;
  // We need to check our stat syscall for EOVERFLOW, as sometimes the integer
  // types used in the stat structures are too small to fit the actual value.
  // E.g. on some systems st_ino is 32-bit, but some filesystems have 64-bit
  // inodes.
  int rc = sys_stat(foo, &raw_stat);
  if (rc < 0 && errno == EOVERFLOW) {
    // Bail out since we had an overflow in the stat structure.
    exit_status = SKIP_TEST_EXIT_STATUS;
    goto cleanup;
  }
  assert(rc == 0);

  assert(libc_stat.st_ino == raw_stat.st_ino);


cleanup:
  sys_unlink(foo);
  return exit_status;
}