1 files changed, 54 insertions, 0 deletions

diff --git a/pwmanager/libcrypt/cipher/bithelp.h b/pwmanager/libcrypt/cipher/bithelp.h
new file mode 100644
index 0000000..1505324
--- a/dev/null
+++ b/pwmanager/libcrypt/cipher/bithelp.h
@@ -0,0 +1,54 @@
+/* bithelp.h  -  Some bit manipulation helpers
+         *Copyright (C) 1999, 2002 Free Software Foundation, Inc.
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser general Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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 the 32 bit unsigned integer X by N bits left/right
+ */
+#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
+
+#if defined(__GNUC__) && defined(__i386__)
+static inline u32
+ror(u32 x, int n)
+{
+        __asm__("rorl %%cl,%0"
+                :"=r" (x)
+                :"0" (x),"c" (n));
+        return x;
+}
+#else
+#define ror(x,n) ( ((x) >> (n)) | ((x) << (32-(n))) )
+#endif
+
+
+#endif /*G10_BITHELP_H*/