[hackers] [sbase] Audit link(1) || FRIGN

[git]

commit de564af9ef55c6da4efc8c737c4da90cc7fd80c7
Author: FRIGN <d...@frign.de>
Date:   Sat Feb 28 19:42:26 2015 +0100

    Audit link(1)

diff --git a/README b/README
index b4b2d96..4e14de8 100644
--- a/README
+++ b/README
@@ -37,7 +37,7 @@ The following tools are implemented ('*' == finished, '#' == 
UTF-8 support,
 =*  head            yes                          none
 =*  hostname        non-posix                    none
 =*  kill            yes                          none
-=*  link            yes                          none
+=*| link            yes                          none
 =*  ln              yes                          none
 =*  logger          yes                          none
 =*  logname         yes                          none
diff --git a/link.c b/link.c
index f84e4b5..5ef8e11 100644
--- a/link.c
+++ b/link.c
@@ -3,14 +3,24 @@
 
 #include "util.h"
 
+static void
+usage(void)
+{
+       eprintf("usage: %s target name\n", argv0);
+}
+
 int
 main(int argc, char *argv[])
 {
-       argv0 = argv[0];
+       ARGBEGIN {
+       default:
+               usage();
+       } ARGEND;
 
-       if (argc != 3)
-               eprintf("usage: %s target name\n", argv0);
-       if (link(argv[1], argv[2]) < 0)
+       if (argc != 2)
+               usage();
+       if (link(argv[0], argv[1]) < 0)
                eprintf("link:");
+
        return 0;
 }