1 files changed, 7 insertions, 4 deletions

diff --git a/coreutils/echo.c b/coreutils/echo.c
index 36cb6b3af..decca095f 100644
--- a/coreutils/echo.c
+++ b/coreutils/echo.c
@@ -46,8 +46,11 @@ int echo_main(int argc UNUSED_PARAM, char **argv)
          * even if libc receives EBADF on write attempts, it feels determined
          * to output data no matter what. So it will try later,
          * and possibly will clobber future output. Not good. */
-        if (dup2(1, 1) != 1)
-                return -1;
+// TODO: check fcntl() & O_ACCMODE == O_WRONLY or O_RDWR?
+        if (fcntl(1, F_GETFL) == -1)
+                return 1; /* match coreutils 6.10 (sans error msg to stderr) */
+        //if (dup2(1, 1) != 1) - old way
+        //      return 1;
 
         arg = *++argv;
         if (!arg)
@@ -58,8 +61,8 @@ int echo_main(int argc UNUSED_PARAM, char **argv)
         char eflag = 0;
 
         /* We must check that stdout is not closed. */
-        if (dup2(1, 1) != 1)
-                return -1;
+        if (fcntl(1, F_GETFL) == -1)
+                return 1;
 
         while (1) {
                 arg = *++argv;