Fix SHA1 byte-order issue for conformance with RFC 2289.

--- otpCalc-0.97-orig/BUGS
+++ otpCalc-0.97/BUGS
@@ -16,3 +16,7 @@
 
 Thanks,
 Anthony
+
+Note: Above-mentioned SHA1 issue is fixed in the Gentoo version.
+The output now agrees with RFC 2289 and with S/Key.
+ - Ulrich Mueller <ulm@gentoo.org>
--- otpCalc-0.97-orig/crypto.c
+++ otpCalc-0.97/crypto.c
@@ -199,6 +199,8 @@
 	for (i = 0; i < 4; i++)
 		digest[i] ^= digest[i+16];
 
-	memcpy(message, digest, 8);
+	/* Fix byte order, as required by RFC 2289 Appendix A */
+	for (i = 0; i < 8; i++)
+		 message[i] = digest[i^3];
 
 }
--- otpCalc-0.97-orig/otpCalc.man
+++ otpCalc-0.97/otpCalc.man
@@ -47,9 +47,6 @@
 RFC 2289, RFC 1740
 .SH "AUTHOR"
 Anthony D. Urso <anthonyu@killa.net>.
-.SH "BUGS"
-SHA1 output differs from RFC2289; however, the output is consistant with
-other implementations.
 .SH "COPYRIGHT"
 Copyright \(co 2001 Anthony D. Urso.
 .br
--- otpCalc-0.97-orig/sha1.h
+++ otpCalc-0.97/sha1.h
@@ -1,3 +1,5 @@
+#include "config.h"
+
 #ifndef  i386
 typedef          long int int64;
 typedef unsigned long int uint64;
@@ -28,7 +30,7 @@
 
 #define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
 
-#ifdef WORDS_BIGENDIAN
+#ifndef WORDS_BIGENDIAN
 #define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \
     |(rol(block->l[i],8)&0x00FF00FF))
 #else