cksum: code shrink

[oweals/busybox.git] / coreutils / comm.c

diff --git a/coreutils/comm.c b/coreutils/comm.c
index 221cbfbcc844320258aeac7f5b149b9931e3d581..4bee7767752edc54f7533351054ec27bc7b9cf1f 100644 (file)
--- a/coreutils/comm.c
+++ b/coreutils/comm.c
@@ -4,8 +4,26 @@
  *
  * Copyright (C) 2005 by Robert Sullivan <cogito.ergo.cogito@gmail.com>
  *
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
+//config:config COMM
+//config:      bool "comm (3.9 kb)"
+//config:      default y
+//config:      help
+//config:      comm is used to compare two files line by line and return
+//config:      a three-column output.
+
+//applet:IF_COMM(APPLET(comm, BB_DIR_USR_BIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_COMM) += comm.o
+
+//usage:#define comm_trivial_usage
+//usage:       "[-123] FILE1 FILE2"
+//usage:#define comm_full_usage "\n\n"
+//usage:       "Compare FILE1 with FILE2\n"
+//usage:     "\n       -1      Suppress lines unique to FILE1"
+//usage:     "\n       -2      Suppress lines unique to FILE2"
+//usage:     "\n       -3      Suppress lines common to both files"
 
 #include "libbb.h"
 
@@ -44,8 +62,7 @@ int comm_main(int argc UNUSED_PARAM, char **argv)
        int i;
        int order;
 
-       opt_complementary = "=2";
-       getopt32(argv, "123");
+       getopt32(argv, "^" "123" "\0" "=2");
        argv += optind;
 
        for (i = 0; i < 2; ++i) {