1 files changed, 3 insertions, 6 deletions
diff --git a/src/tr.c b/src/tr.c
index bb86a8939..724297c9b 100644
--- a/src/tr.c
+++ b/src/tr.c
@@ -29,7 +29,7 @@
 #include "fadvise.h"
 #include "quote.h"
 #include "safe-read.h"
-#include "xfreopen.h"
+#include "xsetmode.h"
 #include "xstrtol.h"
 
 /* The official name of this program (e.g., no 'g' prefix).  */
@@ -1786,11 +1786,8 @@ main (int argc, char **argv)
   /* Use binary I/O, since 'tr' is sometimes used to transliterate
      non-printable characters, or characters which are stripped away
      by text-mode reads (like CR and ^Z).  */
-  if (O_BINARY && ! isatty (STDIN_FILENO))
-    xfreopen (NULL, "rb", stdin);
-  if (O_BINARY && ! isatty (STDOUT_FILENO))
-    xfreopen (NULL, "wb", stdout);
-
+  xsetmode (STDIN_FILENO, O_BINARY);
+  xsetmode (STDOUT_FILENO, O_BINARY);
   fadvise (stdin, FADVISE_SEQUENTIAL);
 
   if (squeeze_repeats && non_option_args == 1)