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diff --git a/programs/pluto/oid.pl b/programs/pluto/oid.pl
new file mode 100644
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+++ b/programs/pluto/oid.pl
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+#!/usr/bin/perl
+# Generates oid.h and oid.c out of oid.txt
+# Copyright (C) 2003-2004 Andreas Steffen, Zuercher Hochschule Winterthur
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation; either version 2 of the License, or (at your
+# option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+# for more details.
+#
+
+$copyright="Copyright (C) 2003-2004 Andreas Steffen, Zuercher Hochschule Winterthur";
+$automatic="This file has been automatically generated by the script oid.pl";
+$warning="Do not edit manually!";
+
+print "oid.pl generating oid.h and oid.c\n";
+
+# Generate oid.h
+
+open(OID_H, ">oid.h")
+ or die "could not open 'oid.h': $!";
+
+print OID_H "/* Object identifiers (OIDs) used by FreeS/WAN\n",
+ " * ", $copyright, "\n",
+ " * \n",
+ " * ", $automatic, "\n",
+ " * ", $warning, "\n",
+ " */\n\n",
+ "typedef struct {\n",
+ " u_char octet;\n",
+ " u_int next;\n",
+ " u_int down;\n",
+ " const u_char *name;\n",
+ "} oid_t;\n",
+ "\n",
+ "extern const oid_t oid_names[];\n",
+ "\n",
+ "#define OID_UNKNOWN -1\n";
+
+# parse oid.txt
+
+open(SRC, "<oid.txt")
+ or die "could not open 'oid.txt': $!";
+
+$counter = 0;
+$max_name = 0;
+$max_order = 0;
+
+while ($line = <SRC>)
+{
+ $line =~ m/( *?)(0x\w{2})\s+(".*?")[ \t]*?([\w_]*?)\Z/;
+
+ @order[$counter] = length($1);
+ @octet[$counter] = $2;
+ @name[$counter] = $3;
+
+ if (length($1) > $max_order)
+ {
+ $max_order = length($1);
+ }
+ if (length($3) > $max_name)
+ {
+ $max_name = length($3);
+ }
+ if (length($4) > 0)
+ {
+ printf OID_H "#define %s%s%d\n", $4, "\t" x ((39-length($4))/8), $counter;
+ }
+ $counter++;
+}
+
+close SRC;
+close OID_H;
+
+# Generate oid.c
+
+open(OID_C, ">oid.c")
+ or die "could not open 'oid.c': $!";
+
+print OID_C "/* List of some useful object identifiers (OIDs)\n",
+ " * ", $copyright, "\n",
+ " * \n",
+ " * ", $automatic, "\n",
+ " * ", $warning, "\n",
+ " */\n",
+ "\n",
+ "#include <stdlib.h>\n",
+ "\n",
+ "#include \"oid.h\"\n",
+ "\n",
+ "const oid_t oid_names[] = {\n";
+
+for ($c = 0; $c < $counter; $c++)
+{
+ $next = 0;
+
+ for ($d = $c+1; $d < $counter && @order[$d] >= @order[$c]; $d++)
+ {
+ if (@order[$d] == @order[$c])
+ {
+ @next[$c] = $d;
+ last;
+ }
+ }
+
+ printf OID_C " {%s%s,%s%3d, %d, %s%s}%s /* %3d */\n"
+ ,' ' x @order[$c]
+ , @octet[$c]
+ , ' ' x (1 + $max_order - @order[$c])
+ , @next[$c]
+ , @order[$c+1] > @order[$c]
+ , @name[$c]
+ , ' ' x ($max_name - length(@name[$c]))
+ , $c != $counter-1 ? "," : " "
+ , $c;
+}
+
+print OID_C "};\n" ;
+close OID_C;