kernel: Close stdin of commands run in os:cmd

This is needed when running programs that only exit when
stdin has been closed, e.g. 'more'.

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/kernel/test/os_SUITE_data/my_fds.c b/lib/kernel/test/os_SUITE_data/my_fds.c
new file mode 100644
index 0000000000..704a4d1e1d
--- /dev/null
+++ b/lib/kernel/test/os_SUITE_data/my_fds.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int
+main(int argc, char** argv)
+{
+    char buff[1];
+    int res = read(stdin, buff, 1);
+    printf("%d", res);
+}