[PATCH] rfc: reuse previously closed descriptor in freopen()

[Andy Shevchenko <andy.shevchenko%gmail.com@localhost>]

What is the advantage to not reuse previously closed descriptor for fd >= 3?
---
 lib/libc/stdio/freopen.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/lib/libc/stdio/freopen.c b/lib/libc/stdio/freopen.c
index c5909a7..180e807 100644
--- a/lib/libc/stdio/freopen.c
+++ b/lib/libc/stdio/freopen.c
@@ -165,7 +165,7 @@ freopen(file, mode, fp)
         * to maintain the descriptor.  Various C library routines (perror)
         * assume stderr is always fd STDERR_FILENO, even if being freopen'd.
         */
-       if (wantfd >= 0 && f != wantfd) {
+       if (wantfd >= 0 && f != wantfd && f < 3) {
                if (dup2(f, wantfd) >= 0) {
                        (void) close(f);
                        f = wantfd;
-- 
1.5.2.5