sim/testsuite/sim/cris/c/fdopen2.c

   1 /* Check that the syscalls implementing fdopen work trivially.
   2 #output: This is the first line of this test.\npass\n
   3 */
   4
   5 #include <stdio.h>
   6 #include <string.h>
   7 #include <stdlib.h>
   8 #include <sys/stat.h>
   9 #include <fcntl.h>
  10
  11 void
  12 perr (const char *s)
  13 {
  14   perror (s);
  15   exit (1);
  16 }
  17
  18 int
  19 main (void)
  20 {
  21   FILE *f;
  22   int fd;
  23   const char fname[] = "sk1test.dat";
  24   const char tsttxt1[]
  25     = "This is the first line of this test.\n";
  26   char buf[sizeof (tsttxt1)] = "";
  27
  28   /* Write a line to stdout.  */
  29   f = fdopen (1, "w");
  30   if (f == NULL
  31       || fwrite (tsttxt1, 1, strlen (tsttxt1), f) != strlen (tsttxt1))
  32     perr ("fdopen or fwrite");
  33
  34 #if 0
  35   /* Unfortunately we can't get < /dev/null to the simulator with
  36      reasonable test-framework surgery.  */
  37
  38   /* Try to read from stdin.  Expect EOF.  */
  39   f = fdopen (0, "r");
  40   if (f == NULL
  41       || fread (buf, 1, sizeof (buf), f) != 0
  42       || feof (f) == 0
  43       || ferror (f) != 0)
  44     {
  45       printf ("fail\n");
  46       exit (1);
  47     }
  48 #endif
  49
  50   printf ("pass\n");
  51   exit (0);
  52 }