Add version 0.5.0
Change-Id: Ic052ea806f728c7e437038b1809f84a47af90011
Signed-off-by: Peter Szilagyi <peter.3.szilagyi@nokia.com>
diff --git a/e2ap/lib/asn_random_fill.c b/e2ap/lib/asn_random_fill.c
new file mode 100644
index 0000000..819cf70
--- /dev/null
+++ b/e2ap/lib/asn_random_fill.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2017 Lev Walkin <vlm@lionet.info>.
+ * All rights reserved.
+ * Redistribution and modifications are permitted subject to BSD license.
+ */
+#include <asn_internal.h>
+#include <asn_random_fill.h>
+#include <constr_TYPE.h>
+
+int
+asn_random_fill(const struct asn_TYPE_descriptor_s *td, void **struct_ptr,
+ size_t length) {
+
+ if(td && td->op->random_fill) {
+ asn_random_fill_result_t res =
+ td->op->random_fill(td, struct_ptr, 0, length);
+ return (res.code == ARFILL_OK) ? 0 : -1;
+ } else {
+ return -1;
+ }
+}
+
+static uintmax_t
+asn__intmax_range(intmax_t lb, intmax_t ub) {
+ assert(lb <= ub);
+ if((ub < 0) == (lb < 0)) {
+ return ub - lb;
+ } else if(lb < 0) {
+ return 1 + ((uintmax_t)ub + (uintmax_t)-(lb + 1));
+ } else {
+ assert(!"Unreachable");
+ return 0;
+ }
+}
+
+intmax_t
+asn_random_between(intmax_t lb, intmax_t rb) {
+ if(lb == rb) {
+ return lb;
+ } else {
+ const uintmax_t intmax_max = ((~(uintmax_t)0) >> 1);
+ uintmax_t range = asn__intmax_range(lb, rb);
+ uintmax_t value = 0;
+ uintmax_t got_entropy = 0;
+
+ assert(RAND_MAX > 0xffffff); /* Seen 7ffffffd! */
+ assert(range < intmax_max);
+
+ for(; got_entropy < range;) {
+ got_entropy = (got_entropy << 24) | 0xffffff;
+ value = (value << 24) | (random() % 0xffffff);
+ }
+
+ return lb + (intmax_t)(value % (range + 1));
+ }
+}