.

[gnulib.git] / lib / md5.h

diff --git a/lib/md5.h b/lib/md5.h
index e8ee9dc..3b7dea1 100644 (file)
--- a/lib/md5.h
+++ b/lib/md5.h
@@ -1,22 +1,22 @@
 /* md5.h - Declaration of functions and data types used for MD5 sum
    computing library functions.
-   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
+   Copyright (C) 1995, 1996, 1999 Free Software Foundation, Inc.
+   NOTE: The canonical source of this file is maintained with the GNU C
+   Library.  Bugs can be reported to bug-glibc@prep.ai.mit.edu.
 
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   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; either version 2, or (at your option) any
+   later version.
 
-   The GNU C Library is distributed in the hope that it will be useful,
+   This program 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
-   Library General Public License for more details.
+   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 Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   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 _MD5_H
 #define _MD5_H 1
@@ -118,7 +118,7 @@ extern void md5_process_bytes __P ((const void *buffer, size_t len,
    endian byte order, so that a byte-wise output yields to the wanted
    ASCII representation of the message digest.
 
-   IMPORTANT: On some systems it is required that RESBUF is correctly
+   IMPORTANT: On some systems it is required that RESBUF be correctly
    aligned for a 32 bits value.  */
 extern void *md5_finish_ctx __P ((struct md5_ctx *ctx, void *resbuf));
 
@@ -143,4 +143,19 @@ extern int md5_stream __P ((FILE *stream, void *resblock));
    digest.  */
 extern void *md5_buffer __P ((const char *buffer, size_t len, void *resblock));
 
+/* The following is from gnupg-1.0.2's cipher/bithelp.h.  */
+/* Rotate a 32 bit integer by n bytes */
+#if defined __GNUC__ && defined __i386__
+static inline md5_uint32
+rol(md5_uint32 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