initial commit

1 files changed, 67 insertions, 0 deletions

diff --git a/trand.c b/trand.c
new file mode 100644
index 0000000..54cdbb7
--- /dev/null
+++ b/trand.c
@@ -0,0 +1,67 @@
+#include "trand.h"
+
+int g_rfound;
+
+void *thread(void *ma)
+{
+	static pthread_mutex_t mutex;
+	pthread_mutex_t *m = &mutex;
+	int r;
+	for (unsigned long long i = 0; i < *(unsigned long long*)ma; i++)
+		r  = rand();
+	pthread_mutex_lock((pthread_mutex_t *)m);
+	if (g_rfound == -1)
+		g_rfound = r;
+	pthread_mutex_unlock((pthread_mutex_t *)m);
+	return (NULL);
+}
+
+/*
+** Control how many threads to create,
+** the more threads the more secure ntrand wil be
+*/
+
+int ntrand(unsigned long long n)
+{
+	g_rfound = -1;
+	pthread_t threads[n];
+	for (unsigned long long i = 0; i < n; i++)
+		pthread_create(&(threads[i]), NULL, thread, (void *)(&i));
+	for (unsigned long long i = 0; i < n; i++)
+		pthread_join(threads[i], NULL);
+	return (g_rfound);
+}
+
+/*
+** Basically rand but we seed with time for you, user-friendly
+*/
+
+int strand()
+{
+	g_rfound = -1;
+	srand(time(NULL));
+	pthread_mutex_t mutex;
+	pthread_t threads[DEF_NTHREAD];
+	for (unsigned long long i = 0; i < DEF_NTHREAD; i++)
+		pthread_create(&(threads[i]), NULL, thread, (void *)(&i));
+	for (unsigned long long i = 0; i < DEF_NTHREAD; i++)
+		pthread_join(threads[i], NULL);
+	return (g_rfound);
+}
+
+
+/*
+* In this version you are responsable for seeding rand()
+*/
+
+int trand()
+{
+	g_rfound = -1;
+	pthread_mutex_t mutex;
+	pthread_t threads[DEF_NTHREAD];
+	for (unsigned long long i = 0; i < DEF_NTHREAD; i++)
+		pthread_create(&(threads[i]), NULL, thread, (void *)(&i));
+	for (unsigned long long i = 0; i < DEF_NTHREAD; i++)
+		pthread_join(threads[i], NULL);
+	return (g_rfound);
+}