1 files changed, 57 insertions, 50 deletions

diff --git a/libio/tst-freopen.c b/libio/tst-freopen.c
index 5f531e3940..5ad589bffa 100644
--- a/libio/tst-freopen.c
+++ b/libio/tst-freopen.c
@@ -22,84 +22,91 @@
 #include <string.h>
 #include <unistd.h>
 
-static int
-do_test (void)
+#include <support/check.h>
+#include <support/temp_file.h>
+
+static int fd;
+static char *name;
+
+static void
+do_prepare (int argc, char *argv[])
+{
+  fd = create_temp_file ("tst-freopen.", &name);
+  TEST_VERIFY_EXIT (fd != -1);
+}
+
+#define PREPARE do_prepare
+
+/* Basic tests for freopen.  */
+static void
+do_test_basic (void)
 {
-  char name[] = "/tmp/tst-freopen.XXXXXX";
   const char * const test = "Let's test freopen.\n";
   char temp[strlen (test) + 1];
-  int fd = mkstemp (name);
-  FILE *f;
-
-  if (fd == -1)
-    {
-      printf ("%u: cannot open temporary file: %m\n", __LINE__);
-      exit (1);
-    }
 
-  f = fdopen (fd, "w");
+  FILE *f = fdopen (fd, "w");
   if (f == NULL)
-    {
-      printf ("%u: cannot fdopen temporary file: %m\n", __LINE__);
-      exit (1);
-    }
+    FAIL_EXIT1 ("fdopen: %m");
 
   fputs (test, f);
   fclose (f);
 
   f = fopen (name, "r");
   if (f == NULL)
-    {
-      printf ("%u: cannot fopen temporary file: %m\n", __LINE__);
-      exit (1);
-    }
+    FAIL_EXIT1 ("fopen: %m");
 
   if (fread (temp, 1, strlen (test), f) != strlen (test))
-    {
-      printf ("%u: couldn't read the file back: %m\n", __LINE__);
-      exit (1);
-    }
+    FAIL_EXIT1 ("fread: %m");
   temp [strlen (test)] = '\0';
 
   if (strcmp (test, temp))
-    {
-      printf ("%u: read different string than was written:\n%s%s",
-	      __LINE__, test, temp);
-      exit (1);
-    }
+    FAIL_EXIT1 ("read different string than was written: (%s, %s)",
+	        test, temp);
 
   f = freopen (name, "r+", f);
   if (f == NULL)
-    {
-      printf ("%u: cannot freopen temporary file: %m\n", __LINE__);
-      exit (1);
-    }
+    FAIL_EXIT1 ("freopen: %m");
 
   if (fseek (f, 0, SEEK_SET) != 0)
-    {
-      printf ("%u: couldn't fseek to start: %m\n", __LINE__);
-      exit (1);
-    }
+    FAIL_EXIT1 ("fseek: %m");
 
   if (fread (temp, 1, strlen (test), f) != strlen (test))
-    {
-      printf ("%u: couldn't read the file back: %m\n", __LINE__);
-      exit (1);
-    }
+    FAIL_EXIT1 ("fread: %m");
   temp [strlen (test)] = '\0';
 
   if (strcmp (test, temp))
-    {
-      printf ("%u: read different string than was written:\n%s%s",
-	      __LINE__, test, temp);
-      exit (1);
-    }
+    FAIL_EXIT1 ("read different string than was written: (%s, %s)",
+	        test, temp);
 
   fclose (f);
+}
+
+/* Test for BZ#21398, where it tries to freopen stdio after the close
+   of its file descriptor.  */
+static void
+do_test_bz21398 (void)
+{
+  (void) close (STDIN_FILENO);
+
+  FILE *f = freopen (name, "r", stdin);
+  if (f == NULL)
+    FAIL_EXIT1 ("freopen: %m");
+
+  TEST_VERIFY_EXIT (ferror (f) == 0);
+
+  char buf[128];
+  char *ret = fgets (buf, sizeof (buf), stdin);
+  TEST_VERIFY_EXIT (ret != NULL);
+  TEST_VERIFY_EXIT (ferror (f) == 0);
+}
+
+static int
+do_test (void)
+{
+  do_test_basic ();
+  do_test_bz21398 ();
 
-  unlink (name);
-  exit (0);
+  return 0;
 }
 
-#define TEST_FUNCTION do_test ()
-#include "../test-skeleton.c"
+#include <support/test-driver.c>