Adding upstream version 0.36.upstream/0.36

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/src/mt19937ar-cok/mt19937ar-cok.h b/src/mt19937ar-cok/mt19937ar-cok.h
new file mode 100644
index 0000000..afcc873
--- /dev/null
+++ b/src/mt19937ar-cok/mt19937ar-cok.h
@@ -0,0 +1,32 @@
+/*
+ * mt19937ar-cok.h:  The Mersenne Twister PRNG implementation for nwipe.
+ *
+ */
+
+#ifndef MT19937AR_H_
+#define MT19937AR_H_
+
+/* Period parameters */
+#define N 624
+#define M 397
+#define MATRIX_A 0x9908b0dfUL   /* constant vector a */
+#define UMASK 0x80000000UL /* most significant w-r bits */
+#define LMASK 0x7fffffffUL /* least significant r bits */
+#define MIXBITS(u,v) ( ((u) & UMASK) | ((v) & LMASK) )
+#define TWIST(u,v) ((MIXBITS(u,v) >> 1) ^ ((v)&1UL ? MATRIX_A : 0UL))
+
+typedef struct twister_state_t_
+{
+	unsigned long array[N];
+	int left;
+	int initf;
+	unsigned long *next;
+} twister_state_t; 
+
+/* Initialize the MT state. ( 0 < key_length <= 624 ). */
+void twister_init( twister_state_t* state, unsigned long init_key[], unsigned long key_length);
+
+/* Generate a random integer on the [0,0xffffffff] interval. */
+unsigned long twister_genrand_int32( twister_state_t* state );
+
+#endif /* MT19937AR_H_ */