Subversion Repositories scarts

/* Check that basic freopen functionality works.  */

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int

main (void)

{

  FILE *old_stderr;

  FILE *f;

  const char fname[] = "sk1test.dat";

  const char tsttxt[]

    = "A random line of text, used to test correct freopen etc.\n";

  char buf[sizeof tsttxt] = "";

  /* Like the freopen call in flex.  */

  old_stderr = freopen (fname, "w+", stderr);

  if (old_stderr == NULL

      || fwrite (tsttxt, 1, strlen (tsttxt), stderr) != strlen (tsttxt)

      || fclose (stderr) != 0)

    {

      printf ("fail\n");

      exit (1);

    }

  /* Using "rb" to make this test similar to the use in genconf.c in

     GhostScript.  */

  f = fopen (fname, "rb");

  if (f == NULL

      || fseek (f, 0L, SEEK_END) != 0

      || ftell (f) != strlen (tsttxt))

    {

      printf ("fail\n");

      exit (1);

    }

  rewind (f);

  if (fread (buf, 1, strlen (tsttxt), f) != strlen (tsttxt)

      || strcmp (buf, tsttxt) != 0

      || fclose (f) != 0)

    {

      printf ("fail\n");

      exit (1);

    }

  printf ("pass\n");

  exit (0);

}