1 files changed, 74 insertions, 0 deletions
diff --git a/util/json.c b/util/json.c
new file mode 100644
index 0000000..2de5848
--- /dev/null
+++ b/util/json.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include <stdio.h>
+#include <errno.h>
+
+#include "json.h"
+#include "types.h"
+
+struct json_object *util_json_object_new_double(long double d)
+{
+	struct json_object *obj;
+	char *str;
+
+	if (asprintf(&str, "%Lf", d) < 0)
+		return NULL;
+
+	obj = json_object_new_string(str);
+
+	free(str);
+	return obj;
+
+}
+
+struct json_object *util_json_object_new_uint64(uint64_t i)
+{
+	struct json_object *obj;
+	char *str;
+
+	if (asprintf(&str, "%" PRIu64, i) < 0)
+		return NULL;
+
+	obj = json_object_new_string(str);
+
+	free(str);
+	return obj;
+
+}
+
+static int util_json_object_string_to_number(struct json_object *jso,
+					     struct printbuf *pb, int level,
+					     int flags)
+{
+	ssize_t len = json_object_get_string_len(jso);
+
+	printbuf_memappend(pb, json_object_get_string(jso), len);
+
+	return 0;
+}
+
+struct json_object *util_json_object_new_uint128(nvme_uint128_t  val)
+{
+	struct json_object *obj;
+
+	obj = json_object_new_string(uint128_t_to_string(val));
+	json_object_set_serializer(obj, util_json_object_string_to_number, NULL, NULL);
+
+	return obj;
+}
+
+uint64_t util_json_object_get_uint64(struct json_object *obj)
+{
+	uint64_t val = 0;
+
+	if (json_object_is_type(obj, json_type_string)) {
+		char *end = NULL;
+		const char *buf;
+
+		buf = json_object_get_string(obj);
+		val = strtoull(buf, &end, 10);
+		if ((val == 0 && errno != 0) || (end == buf))
+			return 0;
+	}
+
+	return val;
+}