1 files changed, 5 insertions, 2 deletions

diff --git a/mknod.c b/mknod.c
index c3389cc71..5822cd3ad 100644
--- a/mknod.c
+++ b/mknod.c
@@ -27,9 +27,9 @@
 #include <fcntl.h>
 #include <unistd.h>
 
-static const char mknod_usage[] = "mknod [OPTION]... NAME TYPE MAJOR MINOR\n\n"
+static const char mknod_usage[] = "mknod NAME TYPE MAJOR MINOR\n\n"
 "Make block or character special files.\n\n"
-"Options:\n"
+"TYPEs include:\n"
 "\tb:\tMake a block (buffered) device.\n"
 "\tc or u:\tMake a character (un-buffered) device.\n"
 "\tp:\tMake a named pipe. Major and minor are ignored for named pipes.\n";
@@ -40,6 +40,9 @@ mknod_main(int argc, char** argv)
         mode_t  mode = 0;
         dev_t   dev = 0;
 
+        if ( argc != 5 || **(argv+1) == '-' ) {
+            usage (mknod_usage);
+        }
         switch(argv[2][0]) {
         case 'c':
         case 'u':