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
perr(const char * s)12 perr (const char *s)
13 {
14   perror (s);
15   exit (1);
16 }
17 
18 int
main(void)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 }
53