sim/testsuite/sim/cris/c/freopen1.c

   1 /* Check that basic freopen functionality works.
   2 #xfail: *-*-*
   3    Currently doesn't work, because syscall.c:cb_syscall case
   4    CB_SYS_write intercepts writes to fd 1 and 2.  */
   5
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <string.h>
   9
  10 int
  11 main (void)
  12 {
  13   FILE *old_stderr;
  14   FILE *f;
  15   const char fname[] = "sk1test.dat";
  16   const char tsttxt[]
  17     = "A random line of text, used to test correct freopen etc.\n";
  18   char buf[sizeof tsttxt] = "";
  19
  20   /* Like the freopen call in flex.  */
  21   old_stderr = freopen (fname, "w+", stderr);
  22   if (old_stderr == NULL
  23       || fwrite (tsttxt, 1, strlen (tsttxt), stderr) != strlen (tsttxt)
  24       || fclose (stderr) != 0)
  25     {
  26       printf ("fail\n");
  27       exit (1);
  28     }
  29
  30   /* Using "rb" to make this test similar to the use in genconf.c in
  31      GhostScript.  */
  32   f = fopen (fname, "rb");
  33   if (f == NULL
  34       || fseek (f, 0L, SEEK_END) != 0
  35       || ftell (f) != strlen (tsttxt))
  36     {
  37       printf ("fail\n");
  38       exit (1);
  39     }
  40
  41   rewind (f);
  42   if (fread (buf, 1, strlen (tsttxt), f) != strlen (tsttxt)
  43       || strcmp (buf, tsttxt) != 0
  44       || fclose (f) != 0)
  45     {
  46       printf ("fail\n");
  47       exit (1);
  48     }
  49
  50   printf ("pass\n");
  51   exit (0);
  52 }