1 files changed, 60 insertions, 0 deletions
diff --git a/grub-core/boot/decompressor/xz.c b/grub-core/boot/decompressor/xz.c
new file mode 100644
index 0000000..2279118
--- /dev/null
+++ b/grub-core/boot/decompressor/xz.c
@@ -0,0 +1,60 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2010  Free Software Foundation, Inc.
+ *
+ *  GRUB 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 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB 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.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/decompressor.h>
+
+#include "xz.h"
+#include "xz_stream.h"
+
+void
+grub_decompress_core (void *src, void *dst, unsigned long srcsize,
+		      unsigned long dstsize)
+{
+  struct xz_dec *dec;
+  struct xz_buf buf;
+
+  find_scratch (src, dst, srcsize, dstsize);
+
+  dec = xz_dec_init (GRUB_DECOMPRESSOR_DICT_SIZE);
+
+  buf.in = src;
+  buf.in_pos = 0;
+  buf.in_size = srcsize;
+  buf.out = dst;
+  buf.out_pos = 0;
+  buf.out_size = dstsize;
+
+  while (buf.in_pos != buf.in_size)
+    {
+      enum xz_ret xzret;
+      xzret = xz_dec_run (dec, &buf);
+      switch (xzret)
+	{
+	case XZ_MEMLIMIT_ERROR:
+	case XZ_FORMAT_ERROR:
+	case XZ_OPTIONS_ERROR:
+	case XZ_DATA_ERROR:
+	case XZ_BUF_ERROR:
+	  return;
+	default:
+	  break;
+	}
+    }
+}