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glibc  2.9
Defines | Functions | Variables
test-lfs.c File Reference
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <error.h>
#include <errno.h>
#include <sys/resource.h>
#include <test-skeleton.c>

Go to the source code of this file.

Defines

#define PREPARE   do_prepare
#define TIMEOUT   20 /* sec */
#define TWO_GB   2147483648LL

Functions

void do_prepare (int argc, char *argv[])
int do_test (int argc, char *argv[])
static void test_ftello (void)

Variables

char * name
int fd

Define Documentation

#define PREPARE   do_prepare

Definition at line 35 of file test-lfs.c.

#define TIMEOUT   20 /* sec */

Definition at line 38 of file test-lfs.c.

#define TWO_GB   2147483648LL

Definition at line 48 of file test-lfs.c.


Function Documentation

void do_prepare ( int  argc,
char *  argv[] 
)

Definition at line 51 of file test-lfs.c.

{
  size_t name_len;
  struct rlimit64 rlim;

  name_len = strlen (test_dir);
  name = malloc (name_len + sizeof ("/lfsXXXXXX"));
  mempcpy (mempcpy (name, test_dir, name_len),
           "/lfsXXXXXX", sizeof ("/lfsXXXXXX"));
  add_temp_file (name);

  /* Open our test file.   */
  fd = mkstemp64 (name);
  if (fd == -1)
    {
      if (errno == ENOSYS)
       {
         /* Fail silently.  */
         error (0, 0, "open64 is not supported");
         exit (EXIT_SUCCESS);
       }
      else
       error (EXIT_FAILURE, errno, "cannot create temporary file");
    }

  if (getrlimit64 (RLIMIT_FSIZE, &rlim) != 0)
    {
      error (0, errno, "cannot get resource limit");
      exit (0);
    }
  if (rlim.rlim_cur < TWO_GB + 200)
    {
      rlim.rlim_cur = TWO_GB + 200;
      if (setrlimit64 (RLIMIT_FSIZE, &rlim) != 0)
       {
         error (0, errno, "cannot reset file size limits");
         exit (0);
       }
    }
}

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int do_test ( int  argc,
char *  argv[] 
)

Definition at line 146 of file test-lfs.c.

{
  int ret;
  struct stat64 statbuf;

  ret = lseek64 (fd, TWO_GB+100, SEEK_SET);
  if (ret == -1 && errno == ENOSYS)
    {
      error (0, 0, "lseek64 is not supported.");
      exit (EXIT_SUCCESS);
    }
  if (ret == -1 && errno == EINVAL)
    {
      error (0, 0, "LFS seems not to be supported.");
      exit (EXIT_SUCCESS);
    }
  if (ret == -1)
    {
      error (0, errno, "lseek64 failed with error");
      exit (EXIT_FAILURE);
    }

  ret = write (fd, "Hello", 5);
  if (ret == -1 && errno == EFBIG)
    {
      error (0, 0, "LFS seems not to be supported.");
      exit (EXIT_SUCCESS);
    }

  if (ret == -1 && errno == ENOSPC)
    {
      error (0, 0, "Not enough space to write file.");
      exit (EXIT_SUCCESS);
    }

  if (ret != 5)
    error (EXIT_FAILURE, errno, "cannot write test string to large file");

  ret = close (fd);

  if (ret == -1)
    error (EXIT_FAILURE, errno, "error closing file");

  ret = stat64 (name, &statbuf);

  if (ret == -1 && (errno == ENOSYS || errno == EOVERFLOW))
    error (0, 0, "stat64 is not supported.");
  else if (ret == -1)
    error (EXIT_FAILURE, errno, "cannot stat file `%s'", name);
  else if (statbuf.st_size != (TWO_GB + 100 + 5))
    error (EXIT_FAILURE, 0, "stat reported size %lld instead of %lld.",
          (long long int) statbuf.st_size, (TWO_GB + 100 + 5));

  test_ftello ();

  return 0;
}
static void test_ftello ( void  ) [static]

Definition at line 93 of file test-lfs.c.

{
  FILE *f;
  int ret;
  off64_t pos;

  f = fopen64 (name, "w");

  ret = fseeko64 (f, TWO_GB+100, SEEK_SET);
  if (ret == -1 && errno == ENOSYS)
    {
      error (0, 0, "fseeko64 is not supported.");
      exit (EXIT_SUCCESS);
    }
  if (ret == -1 && errno == EINVAL)
    {
      error (0, 0, "LFS seems not to be supported");
      exit (EXIT_SUCCESS);
    }
  if (ret == -1)
    {
      error (0, errno, "fseeko64 failed with error");
      exit (EXIT_FAILURE);
    }

  ret = fwrite ("Hello", 1, 5, f);
  if (ret == -1 && errno == EFBIG)
    {
      error (0, errno, "LFS seems not to be supported");
      exit (EXIT_SUCCESS);
    }

  if (ret == -1 && errno == ENOSPC)
    {
      error (0, 0, "Not enough space to write file.");
      exit (EXIT_SUCCESS);
    }

  if (ret != 5)
    error (EXIT_FAILURE, errno, "Cannot write test string to large file");

  pos = ftello64 (f);

  if (pos != TWO_GB+105)
    {
      error (0, 0, "ftello64 gives wrong result.");
      exit (EXIT_FAILURE);
    }

  fclose (f);
}

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Variable Documentation

Definition at line 45 of file test-lfs.c.

char* name

Definition at line 44 of file test-lfs.c.