Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / util / padimg.pl

diff --git a/qemu/roms/ipxe/src/util/padimg.pl b/qemu/roms/ipxe/src/util/padimg.pl
new file mode 100755 (executable)
index 0000000..4421aaf
--- /dev/null
+++ b/qemu/roms/ipxe/src/util/padimg.pl
@@ -0,0 +1,44 @@
+#!/usr/bin/perl -w
+
+use strict;
+use warnings;
+use Getopt::Long;
+use Fcntl;
+
+my $verbosity = 0;
+my $blksize = 512;
+my $byte = 0;
+
+my %opts = (
+  'verbose|v+' => sub { $verbosity++; },
+  'quiet|q+' => sub { $verbosity--; },
+  'blksize|s=o' => sub { $blksize = $_[1]; },
+  'byte|b=o' => sub { $byte = $_[1]; },
+);
+
+Getopt::Long::Configure ( 'bundling', 'auto_abbrev' );
+GetOptions ( %opts ) or die "Could not parse command-line options\n";
+
+while ( my $filename = shift ) {
+  die "$filename is not a file\n" unless -f $filename;
+  my $oldsize = -s $filename;
+  my $padsize = ( ( -$oldsize ) % $blksize );
+  my $newsize = ( $oldsize + $padsize );
+  next unless $padsize;
+  if ( $verbosity >= 1 ) {
+      printf "Padding %s from %d to %d bytes with %d x 0x%02x\n",
+            $filename, $oldsize, $newsize, $padsize, $byte;
+  }
+  if ( $byte ) {
+    sysopen ( my $fh, $filename, ( O_WRONLY | O_APPEND ) )
+       or die "Could not open $filename for appending: $!\n";
+    syswrite $fh, ( chr ( $byte ) x $padsize )
+       or die "Could not append to $filename: $!\n";
+    close ( $fh );
+  } else {
+    truncate $filename, $newsize
+       or die "Could not resize $filename: $!\n";
+  }
+  die "Failed to pad $filename\n"
+      unless ( ( ( -s $filename ) % $blksize ) == 0 );
+}