Don't close stdin for -ok or -okdir

Turns out it violates POSIX, even though GNU find does it.

4 files changed, 45 insertions, 15 deletions

diff --git a/eval.c b/eval.c
index 37bea60..3a97585 100644
--- a/eval.c
+++ b/eval.c
@@ -468,17 +468,8 @@ bool eval_exec(const struct expr *expr, struct eval_state *state) {
 			exec_chdir(ftwbuf);
 		}
 
-		if (expr->exec_flags & EXEC_CONFIRM) {
-			if (redirect(STDIN_FILENO, "/dev/null", O_RDONLY) < 0) {
-				perror("redirect()");
-				goto exit;
-			}
-		}
-
 		execvp(argv[0], argv);
 		perror("execvp()");
-
-	exit:
 		_Exit(EXIT_FAILURE);
 	}
 
diff --git a/tests.sh b/tests.sh
index ecaf837..084e8ac 100755
--- a/tests.sh
+++ b/tests.sh
@@ -609,15 +609,16 @@ function test_0093() {
 }
 
 function test_0094() {
-    [ "$GNU" ] || return 0
-    # -ok should close stdin for the executed command
-    yes | $BFS basic -ok cat ';' 2>/dev/null
+    [ "$BSD" ] || return 0
+    # -ok should *not* close stdin
+    # See https://savannah.gnu.org/bugs/?24561
+    yes | bfs_diff basic -ok bash -c "printf '%s? ' {} && head -n1" \; 2>/dev/null
 }
 
 function test_0095() {
-    [ "$GNU" ] || return 0
-    # -okdir should close stdin for the executed command
-    yes | $BFS basic -okdir cat ';' 2>/dev/null
+    [ "$BSD" ] || return 0
+    # -okdir should *not* close stdin
+    yes | bfs_diff basic -okdir bash -c "printf '%s? ' {} && head -n1" \; 2>/dev/null
 }
 
 function test_0096() {
diff --git a/tests/test_0094.out b/tests/test_0094.out
new file mode 100644
index 0000000..30b57fd
--- /dev/null
+++ b/tests/test_0094.out
@@ -0,0 +1,19 @@
+basic? y
+basic/a? y
+basic/b? y
+basic/c? y
+basic/e? y
+basic/g? y
+basic/i? y
+basic/j? y
+basic/k? y
+basic/l? y
+basic/c/d? y
+basic/e/f? y
+basic/g/h? y
+basic/j/foo? y
+basic/k/foo? y
+basic/l/foo? y
+basic/k/foo/bar? y
+basic/l/foo/bar? y
+basic/l/foo/bar/baz? y
diff --git a/tests/test_0095.out b/tests/test_0095.out
new file mode 100644
index 0000000..ef2a68b
--- /dev/null
+++ b/tests/test_0095.out
@@ -0,0 +1,19 @@
+./a? y
+./b? y
+./bar? y
+./bar? y
+./basic? y
+./baz? y
+./c? y
+./d? y
+./e? y
+./f? y
+./foo? y
+./foo? y
+./foo? y
+./g? y
+./h? y
+./i? y
+./j? y
+./k? y
+./l? y