1 files changed, 135 insertions, 0 deletions
diff --git a/sid/sidplay-libs-2.1.0/libsidutils/src/MD5/MD5.h b/sid/sidplay-libs-2.1.0/libsidutils/src/MD5/MD5.h
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+++ b/sid/sidplay-libs-2.1.0/libsidutils/src/MD5/MD5.h
@@ -0,0 +1,135 @@
+/*
+ * This code has been derived by Michael Schwendt <mschwendt@yahoo.com>
+ * from original work by L. Peter Deutsch <ghost@aladdin.com>.
+ * 
+ * The original C code (md5.c, md5.h) is available here:
+ * ftp://ftp.cs.wisc.edu/ghost/packages/md5.tar.gz
+ */
+
+/*
+  Copyright (C) 1999 Aladdin Enterprises.  All rights reserved.
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  L. Peter Deutsch
+  ghost@aladdin.com
+ */
+
+#ifndef MD5_H
+#define MD5_H
+
+#include "MD5_Defs.h"
+
+typedef unsigned char md5_byte_t;  // 8-bit byte
+typedef unsigned int md5_word_t;   // 32-bit word
+
+class MD5
+{
+ public:
+    // Initialize the algorithm. Reset starting values.
+    MD5();
+    
+    // Append a string to the message.
+    void append(const void* data, int nbytes);
+
+    // Finish the message.
+    void finish();
+
+    // Return pointer to 16-byte fingerprint.
+    const md5_byte_t* getDigest();
+    
+    // Initialize the algorithm. Reset starting values.
+    void reset();
+
+ private:
+
+    /* Define the state of the MD5 Algorithm. */
+    md5_word_t count[2];	/* message length in bits, lsw first */
+    md5_word_t abcd[4];		/* digest buffer */
+    md5_byte_t buf[64];		/* accumulate block */
+
+    md5_byte_t digest[16];
+        
+    md5_word_t tmpBuf[16];
+    const md5_word_t* X;
+    
+    void
+    process(const md5_byte_t data[64]);
+
+    md5_word_t
+    ROTATE_LEFT(const md5_word_t x, const int n);
+    
+    md5_word_t
+    F(const md5_word_t x, const md5_word_t y, const md5_word_t z);
+        
+    md5_word_t
+    G(const md5_word_t x, const md5_word_t y, const md5_word_t z);
+
+    md5_word_t
+    H(const md5_word_t x, const md5_word_t y, const md5_word_t z);
+
+    md5_word_t
+    I(const md5_word_t x, const md5_word_t y, const md5_word_t z);
+
+    typedef md5_word_t (MD5::*md5func)(const md5_word_t x, const md5_word_t y, const md5_word_t z);
+        
+    void
+    SET(md5func func, md5_word_t& a, md5_word_t& b, md5_word_t& c,
+        md5_word_t& d, const int k, const int s,
+        const md5_word_t Ti);
+};
+
+inline md5_word_t
+MD5::ROTATE_LEFT(const md5_word_t x, const int n)
+{
+    return ( (x<<n) | (x>>(32-n)) );
+}
+
+inline md5_word_t
+MD5::F(const md5_word_t x, const md5_word_t y, const md5_word_t z)
+{
+    return ( (x&y) | (~x&z) );
+}
+
+inline md5_word_t
+MD5::G(const md5_word_t x, const md5_word_t y, const md5_word_t z)
+{
+    return ( (x&z) | (y&~z) );
+}
+
+inline md5_word_t
+MD5::H(const md5_word_t x, const md5_word_t y, const md5_word_t z)
+{
+    return ( x^y^z );
+}
+
+inline md5_word_t
+MD5::I(const md5_word_t x, const md5_word_t y, const md5_word_t z)
+{
+    return ( y ^ (x|~z) );
+}
+
+inline void
+MD5::SET(md5func func, md5_word_t& a, md5_word_t& b, md5_word_t& c,
+          md5_word_t& d, const int k, const int s,
+          const md5_word_t Ti)
+{
+    md5_word_t t = a + (this->*func)(b,c,d) + X[k] + Ti;
+    a = ROTATE_LEFT(t, s) + b;
+}
+
+#endif  /* MD5_H */