Making note of my changes

[oweals/busybox.git] / mknod.c

diff --git a/mknod.c b/mknod.c
index 81c846b98dbd950ee02173ebd67dd5bd26707e3b..5822cd3adb120daf0117c9d56b4ce37c30e8aec0 100644 (file)
--- a/mknod.c
+++ b/mknod.c
@@ -27,9 +27,9 @@
 #include <fcntl.h>
 #include <unistd.h>
 
-static const char mknod_usage[] = "mknod file b|c|u|p major minor\n"
-"\tMake special files.\n"
-"\n"
+static const char mknod_usage[] = "mknod NAME TYPE MAJOR MINOR\n\n"
+"Make block or character special files.\n\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':