(2006-08-06) rescue-bootcd

extra/syslinux-3.09/memdisk/postprocess.pl

@@ -0,0 +1,58 @@
+#!/usr/bin/perl
+## -----------------------------------------------------------------------
+##   
+##   Copyright 2001 H. Peter Anvin - All Rights Reserved
+##
+##   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, Inc., 53 Temple Place Ste 330,
+##   Boston MA 02111-1307, USA; either version 2 of the License, or
+##   (at your option) any later version; incorporated herein by reference.
+##
+## -----------------------------------------------------------------------
+## $Id: postprocess.pl,v 1.4 2004/12/14 22:46:25 hpa Exp $
+
+#
+# Postprocess the memdisk binary.
+#
+
+eval { use bytes; };
+
+($out,$file16,$file32) = @ARGV;
+
+open(OUT, "> $out\0") or die "$0: Cannot create file: $out\n";
+eval { binmode OUT; };
+open(FILE, "< $file16\0") or die "$0: Cannot open file: $file16\n";
+eval { binmode FILE };
+
+@info = stat(FILE);
+$size = $info[7];
+
+$sectors = ($size + 511) >> 9;
+$xsize = $sectors << 9;
+
+read(FILE, $f16, $size);
+
+print OUT $f16;
+
+if ( $size != $xsize ) {
+    # Pad to a sector boundary
+    print OUT "\0" x ($xsize-$size);
+}
+
+seek(OUT, 0x1f1, SEEK_SET);	# setup_sects
+# All sectors are setup except the first
+print OUT pack("C", $sectors-1);
+
+seek(OUT, $xsize, SEEK_SET);
+close(FILE);
+
+open(FILE, "+< $file32\0") or die "$0: Cannot open file: $file32\n";
+
+while ( ($n = read(FILE, $f32, 65536)) > 0 ) {
+    print OUT $f32;
+}
+
+close(FILE);
+close(OUT);
+