1 files changed, 7 insertions, 13 deletions
diff --git a/lib/System/Unix/Process.inc b/lib/System/Unix/Process.inc
index 774783f8ad..d7155852bf 100644
--- a/lib/System/Unix/Process.inc
+++ b/lib/System/Unix/Process.inc
@@ -179,26 +179,20 @@ void Process::PreventCoreFiles() {
 }
 
 bool Process::StandardInIsUserInput() {
-#if HAVE_ISATTY
-  return isatty(0);
-#else
-  // If we don't have isatty, just return false.
-  return false;
-#endif
+  return FileDescriptorIsDisplayed(STDIN_FILENO);
 }
 
 bool Process::StandardOutIsDisplayed() {
-#if HAVE_ISATTY
-  return isatty(1);
-#else
-  // If we don't have isatty, just return false.
-  return false;
-#endif
+  return FileDescriptorIsDisplayed(STDOUT_FILENO);
 }
 
 bool Process::StandardErrIsDisplayed() {
+  return FileDescriptorIsDisplayed(STDERR_FILENO);
+}
+
+bool Process::FileDescriptorIsDisplayed(int fd) {
 #if HAVE_ISATTY
-  return isatty(2);
+  return isatty(fd);
 #else
   // If we don't have isatty, just return false.
   return false;