hush: fix "exec 3>FILE" aborting if 3 is exactly the next free fd

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 15 insertions, 0 deletions

diff --git a/shell/hush_test/hush-redir/redir_exec2.right b/shell/hush_test/hush-redir/redir_exec2.right
new file mode 100644
index 000000000..2bdc093c9
--- /dev/null
+++ b/shell/hush_test/hush-redir/redir_exec2.right
@@ -0,0 +1,4 @@
+fd/5
+fd/4
+fd/3
+One:1
diff --git a/shell/hush_test/hush-redir/redir_exec2.tests b/shell/hush_test/hush-redir/redir_exec2.tests
new file mode 100755
index 000000000..700a51786
--- /dev/null
+++ b/shell/hush_test/hush-redir/redir_exec2.tests
@@ -0,0 +1,11 @@
+cd /proc/$$
+exec 5>/dev/null
+exec 4>/dev/null
+exec 3>/dev/null
+ls -1 fd/5
+ls -1 fd/4
+ls -1 fd/3
+exec 5>&-
+test -e fd/5 && echo BUG
+echo One:$?
+