1 /*
2  * Copyright (c) 2019, Linaro Ltd.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  * this list of conditions and the following disclaimer.
10  *
11  * 2. Redistributions in binary form must reproduce the above copyright notice,
12  * this list of conditions and the following disclaimer in the documentation
13  * and/or other materials provided with the distribution.
14  *
15  * 3. Neither the name of the copyright holder nor the names of its contributors
16  * may be used to endorse or promote products derived from this software without
17  * specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
23  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 #ifndef __JSON_H__
32 #define __JSON_H__
33 
34 
35 enum {
36 	JSON_TYPE_UNKNOWN,
37 	JSON_TYPE_TRUE,
38 	JSON_TYPE_FALSE,
39 	JSON_TYPE_NULL,
40 	JSON_TYPE_NUMBER,
41 	JSON_TYPE_STRING,
42 	JSON_TYPE_ARRAY,
43 	JSON_TYPE_OBJECT,
44 };
45 
46 struct json_value {
47 	const char *key;
48 
49 	int type;
50 	union {
51 		double number;
52 		const char *string;
53 		struct json_value *value;
54 	} u;
55 
56 	struct json_value *next;
57 };
58 
59 struct json_value *json_parse(const char *json);
60 struct json_value *json_parse_file(const char *file);
61 int json_count_children(struct json_value *array);
62 struct json_value *json_get_child(struct json_value *object, const char *key);
63 int json_get_number(struct json_value *object, const char *key, double *number);
64 const char *json_get_string(struct json_value *object, const char *key);
65 void json_free(struct json_value *value);
66 
67 #endif
68