flowtop: Don't duplicate copyright/bug report/license string

Move the copyright/bug report/license string to an own constant and use
it for the output of help() and version() to avoid duplication and
prevent the strings from getting out of sync. This makes the text
section of flowtop.o slightly smaller:

before:
   text	   data	    bss	    dec	    hex	filename
  15601	      4	     48	  15653	   3d25	flowtop/flowtop.o

after:
   text	   data	    bss	    dec	    hex	filename
  15228	      4	     48	  15280	   3bb0	flowtop/flowtop.o

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 12 insertions, 16 deletions

diff --git a/flowtop.c b/flowtop.c
index 01a5709..025e815 100644
--- a/flowtop.c
+++ b/flowtop.c
@@ -96,6 +96,14 @@ static const struct option long_options[] = {
 	{NULL, 0, NULL, 0}
 };
 
+static const char *copyright = "Please report bugs to <bugs@netsniff-ng.org>\n"
+	"Copyright (C) 2011-2013 Daniel Borkmann <dborkma@tik.ee.ethz.ch>\n"
+	"Copyright (C) 2011-2012 Emmanuel Roullit <emmanuel.roullit@gmail.com>\n"
+	"Swiss federal institute of technology (ETH Zurich)\n"
+	"License: GNU GPL version 2.0\n"
+	"This is free software: you are free to change and redistribute it.\n"
+	"There is NO WARRANTY, to the extent permitted by law.\n";
+
 static const char *const l3proto2str[AF_MAX] = {
 	[AF_INET]			= "ipv4",
 	[AF_INET6]			= "ipv6",
@@ -248,14 +256,8 @@ static void help(void)
 	     "Note:\n"
 	     "  If netfilter is not running, you can activate it with e.g.:\n"
 	     "   iptables -A INPUT -p tcp -m state --state ESTABLISHED -j ACCEPT\n"
-	     "   iptables -A OUTPUT -p tcp -m state --state NEW,ESTABLISHED -j ACCEPT\n\n"
-	     "Please report bugs to <bugs@netsniff-ng.org>\n"
-	     "Copyright (C) 2011-2013 Daniel Borkmann <dborkma@tik.ee.ethz.ch>\n"
-	     "Copyright (C) 2011-2012 Emmanuel Roullit <emmanuel.roullit@gmail.com>\n"
-	     "Swiss federal institute of technology (ETH Zurich)\n"
-	     "License: GNU GPL version 2.0\n"
-	     "This is free software: you are free to change and redistribute it.\n"
-	     "There is NO WARRANTY, to the extent permitted by law.\n");
+	     "   iptables -A OUTPUT -p tcp -m state --state NEW,ESTABLISHED -j ACCEPT\n\n");
+	puts(copyright);
 	die();
 }
 
@@ -263,14 +265,8 @@ static void version(void)
 {
 	printf("\nflowtop %s, Git id: %s\n", VERSION_LONG, GITVERSION);
 	puts("top-like netfilter TCP/UDP/SCTP/.. flow tracking\n"
-	     "http://www.netsniff-ng.org\n\n"
-	     "Please report bugs to <bugs@netsniff-ng.org>\n"
-	     "Copyright (C) 2011-2013 Daniel Borkmann <dborkma@tik.ee.ethz.ch>\n"
-	     "Copyright (C) 2011-2012 Emmanuel Roullit <emmanuel.roullit@gmail.com>\n"
-	     "Swiss federal institute of technology (ETH Zurich)\n"
-	     "License: GNU GPL version 2.0\n"
-	     "This is free software: you are free to change and redistribute it.\n"
-	     "There is NO WARRANTY, to the extent permitted by law.\n");
+	     "http://www.netsniff-ng.org\n\n");
+	puts(copyright);
 	die();
 }