Release calc version 2.12.2

sha1.h

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+/*
+ * sha1 - new NIST Secure Hash Standard-1 (SHA1)
+ *
+ * Written 2 September 1992, Peter C. Gutmann.
+ *
+ * This file and been extensively modified by:
+ *
+ *	Landon Curt Noll
+ *	http://www.isthe.com/chongo/
+ *
+ *	chongo <was here> /\../\
+ *
+ * This code has been placed in the public domain.  Please do not
+ * copyright this code.
+ *
+ * LANDON CURT NOLL DISCLAIMS ALL WARRANTIES WITH  REGARD  TO
+ * THIS	 SOFTWARE,  INCLUDING  ALL IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS.  IN NO EVENT SHALL	 LANDON	 CURT
+ * NOLL	 BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM  LOSS  OF
+ * USE,	 DATA  OR  PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR  IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * @(#) $Revision: 30.3 $
+ * @(#) $Id: sha1.h,v 30.3 2007/07/05 17:37:41 chongo Exp $
+ * @(#) $Source: /usr/local/src/cmd/calc/RCS/sha1.h,v $
+ *
+ * This file is not covered under version 2.1 of the GNU LGPL.
+ */
+
+
+#if !defined(__SHA1_H__)
+#define __SHA1_H__
+
+
+/* SHA1_CHUNKSIZE must be a power of 2 - fixed value defined by the algorithm */
+#define SHA1_CHUNKSIZE (1<<6)
+#define SHA1_CHUNKWORDS (SHA1_CHUNKSIZE/sizeof(USB32))
+
+/* SHA1_DIGESTSIZE is a the length of the digest as defined by the algorithm */
+#define SHA1_DIGESTSIZE (20)
+#define SHA1_DIGESTWORDS (SHA1_DIGESTSIZE/sizeof(USB32))
+
+/* SHA1_LOW - where low 32 bits of 64 bit count is stored during final */
+#define SHA1_LOW 15
+
+/* SHA1_HIGH - where high 32 bits of 64 bit count is stored during final */
+#define SHA1_HIGH 14
+
+/*
+ * The structure for storing SHA1 info
+ *
+ * We will assume that bit count is a multiple of 8.
+ */
+typedef struct {
+	USB32 digest[SHA1_DIGESTWORDS]; /* message digest */
+	USB32 countLo;			/* 64 bit count: bits 3-34 */
+	USB32 countHi;			/* 64 bit count: bits 35-63 */
+	USB32 datalen;			/* length of data in data */
+	USB32 data[SHA1_CHUNKWORDS];	/* SHA1 chunk buffer */
+} SHA1_INFO;
+
+/*
+ * SHA1COUNT(SHA1_INFO*, USB32) - update the 64 bit count in an SHA1_INFO
+ *
+ * We will count bytes and convert to bit count during the final
+ * transform.
+ */
+#define SHA1COUNT(sha1info, count) {					\
+	USB32 tmp_countLo;						\
+	tmp_countLo = (sha1info)->countLo;				\
+	if (((sha1info)->countLo += (count)) < tmp_countLo) {		\
+		(sha1info)->countHi++;					\
+	}								\
+}
+
+
+#endif /* !__SHA1_H__ */