/* Check that the syscalls implementing fdopen work trivially. #output: This is the first line of this test.\npass\n */ #include #include #include #include #include void perr (const char *s) { perror (s); exit (1); } int main (void) { FILE *f; int fd; const char fname[] = "sk1test.dat"; const char tsttxt1[] = "This is the first line of this test.\n"; char buf[sizeof (tsttxt1)] = ""; /* Write a line to stdout. */ f = fdopen (1, "w"); if (f == NULL || fwrite (tsttxt1, 1, strlen (tsttxt1), f) != strlen (tsttxt1)) perr ("fdopen or fwrite"); #if 0 /* Unfortunately we can't get < /dev/null to the simulator with reasonable test-framework surgery. */ /* Try to read from stdin. Expect EOF. */ f = fdopen (0, "r"); if (f == NULL || fread (buf, 1, sizeof (buf), f) != 0 || feof (f) == 0 || ferror (f) != 0) { printf ("fail\n"); exit (1); } #endif printf ("pass\n"); exit (0); }