added option file handling

1 files changed, 50 insertions, 0 deletions

diff --git a/cipher/sha1.h b/cipher/sha1.h
new file mode 100644
index 000000000..ca03936f2
--- /dev/null
+++ b/cipher/sha1.h
@@ -0,0 +1,50 @@
+/* sha1.h - SHA1 hash function
+ *	Copyright (c) 1997 by Werner Koch (dd9jn)
+ *
+ * This file is part of G10.
+ *
+ * G10 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.
+ *
+ * G10 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_SHA1_H
+#define G10_SHA1_H
+
+#include "types.h"
+
+typedef struct {
+    u32  h0,h1,h2,h3,h4;
+    u32  nblocks;
+    byte buffer[64];
+    int  bufcount;
+} *SHA1HANDLE;
+
+
+/****************
+ * Process a single character, this character will be buffered to
+ * increase performance.
+ */
+#define sha1_putchar(h,c)				    \
+	    do {					    \
+		if( (h)->bufcount == 64 )		    \
+		    sha1_write( (h), NULL, 0 ); 	    \
+		(h)->buffer[(h)->bufcount++] = (c) & 0xff;  \
+	    } while(0)
+
+SHA1HANDLE sha1_open( int secure );
+SHA1HANDLE sha1_copy( SHA1HANDLE a );
+void	   sha1_close( SHA1HANDLE hd );
+void	   sha1_write( SHA1HANDLE hd, byte *inbuf, size_t inlen );
+byte *	   sha1_final( SHA1HANDLE hd );
+
+#endif /*G10_SHA1_H*/