Merge branch 'merge-random'

1 files changed, 41 insertions, 0 deletions

diff --git a/random/gnupg-bithelp.h b/random/gnupg-bithelp.h
new file mode 100644
index 00000000..188db168
--- /dev/null
+++ b/random/gnupg-bithelp.h
@@ -0,0 +1,41 @@
+/* bithelp.h  -  Some bit manipulation helpers
+ *	Copyright (C) 1999 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG 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.
+ *
+ * GnuPG 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+#ifndef G10_BITHELP_H
+#define G10_BITHELP_H
+
+
+/****************
+ * Rotate a 32 bit integer by n bytes
+ */
+#if defined(__GNUC__) && defined(__i386__)
+static inline u32
+rol( u32 x, int n)
+{
+	__asm__("roll %%cl,%0"
+		:"=r" (x)
+		:"0" (x),"c" (n));
+	return x;
+}
+#else
+  #define rol(x,n) ( ((x) << (n)) | ((x) >> (32-(n))) )
+#endif
+
+
+#endif /*G10_BITHELP_H*/