1 files changed, 66 insertions, 0 deletions
diff --git a/util/src/rand.c b/util/src/rand.c
new file mode 100644
index 0000000..c3a7aa9
--- /dev/null
+++ b/util/src/rand.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2004,2005 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <axutil_rand.h>
+#include <axutil_string.h>
+#include <platforms/axutil_platform_auto_sense.h>
+
+#define AXIS2_RAND_MAX 32768
+
+AXIS2_EXTERN int AXIS2_CALL
+axutil_rand(
+    unsigned int *seedp)
+{
+    *seedp = *seedp * 1103515245 + 12345;
+    return ((unsigned)(*seedp / (2 * AXIS2_RAND_MAX)) % AXIS2_RAND_MAX);
+}
+
+AXIS2_EXTERN int AXIS2_CALL
+axutil_rand_with_range(
+    unsigned int *seedp,
+    int start,
+    int end)
+{
+    int rand = -1;
+    float range = 0.0;
+    if(start < 0 || end <= 0)
+        return -1;
+    if(start >= AXIS2_RAND_MAX || end > AXIS2_RAND_MAX)
+        return -1;
+    if(end <= start)
+        return -1;
+
+    range = (float)(end - start);
+    rand = axutil_rand(seedp);
+    rand = start + (int)(range * rand / (AXIS2_RAND_MAX + 1.0));
+    return rand;
+}
+
+AXIS2_EXTERN unsigned int AXIS2_CALL
+axutil_rand_get_seed_value_based_on_time(
+    const axutil_env_t * env)
+{
+    axutil_date_time_t *date = axutil_date_time_create(env);
+    unsigned int rand_var = axutil_date_time_get_year(date, env);
+    rand_var += axutil_date_time_get_month(date, env);
+    rand_var += axutil_date_time_get_date(date, env);
+    rand_var += axutil_date_time_get_hour(date, env);
+    rand_var += axutil_date_time_get_minute(date, env);
+    rand_var += axutil_date_time_get_second(date, env);
+    axutil_date_time_free(date, env);
+    return rand_var;
+}