dumpkmap,loadkmap: abort if there are params on cmdline

function                                             old     new   delta
loadkmap_main                                        201     219     +18
dumpkmap_main                                        208     223     +15

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

1 files changed, 5 insertions, 0 deletions

diff --git a/console-tools/loadkmap.c b/console-tools/loadkmap.c
index 912291a7d..9e2c779e0 100644
--- a/console-tools/loadkmap.c
+++ b/console-tools/loadkmap.c
@@ -32,6 +32,11 @@ int loadkmap_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
 /*      const char *tty_name = CURRENT_TTY; */
         RESERVE_CONFIG_BUFFER(flags, MAX_NR_KEYMAPS);
 
+        /* When user accidentally runs "loadkmap FILE"
+         * instead of "loadkmap <FILE", we end up waiting for input from tty.
+         * Let's prevent it: */
+        if (argv[1])
+                bb_show_usage();
 /* bb_warn_ignoring_args(argv[1]); */
         fd = get_console_fd_or_die();
 /* or maybe: