2 * Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 #include <json-c/json.h>
31 static struct json_object
*
36 struct json_object
*obj
= NULL
;
37 struct json_tokener
*tok
= json_tokener_new();
38 enum json_tokener_error err
= json_tokener_continue
;
43 while ((len
= fread(buf
, 1, sizeof(buf
), fd
)) > 0)
45 obj
= json_tokener_parse_ex(tok
, buf
, len
);
46 err
= json_tokener_get_error(tok
);
48 if (!err
|| err
!= json_tokener_continue
)
52 json_tokener_free(tok
);
54 return err
? NULL
: obj
;
58 print_string(const char *s
)
76 export_json(struct json_object
*jsobj
, char *expr
)
79 struct jp_state
*state
;
80 struct json_object
*res
;
83 state
= jp_parse(expr
);
85 if (!state
|| state
->error
)
87 fprintf(stderr
, "In expression '%s': %s\n",
88 expr
, state
? state
->error
: "Out of memory");
93 res
= jp_match(state
->path
, jsobj
);
95 if (state
->path
->type
== T_LABEL
)
97 prefix
= state
->path
->str
;
99 switch (json_object_get_type(res
))
101 case json_type_object
:
102 printf("export %s_TYPE=object; ", prefix
);
105 printf("export %s_KEYS=", prefix
);
106 json_object_object_foreach(res
, key
, val
)
119 //printf("export %s=", prefix);
120 //print_string(json_object_to_json_string(res));
125 case json_type_array
:
126 printf("export %s_TYPE=array; ", prefix
);
127 printf("export %s_LENGTH=%d; ",
128 prefix
, json_object_array_length(res
));
130 //printf("export %s=", prefix);
131 //print_string(json_object_to_json_string(res));
135 case json_type_boolean
:
136 printf("export %s_TYPE=bool; ", prefix
);
137 printf("export %s=%d; ", prefix
, json_object_get_boolean(res
));
141 printf("export %s_TYPE=int; ", prefix
);
142 printf("export %s=%d; ", prefix
, json_object_get_int(res
));
145 case json_type_double
:
146 printf("export %s_TYPE=double; ", prefix
);
147 printf("export %s=%f; ", prefix
, json_object_get_double(res
));
150 case json_type_string
:
151 printf("export %s_TYPE=string; ", prefix
);
152 printf("export %s=", prefix
);
153 print_string(json_object_get_string(res
));
158 printf("unset %s %s_TYPE %s_LENGTH %s_KEYS; ",
159 prefix
, prefix
, prefix
, prefix
);
165 printf("%s\n", json_object_to_json_string(res
));
173 int main(int argc
, char **argv
)
177 struct json_object
*jsobj
= NULL
;
179 while ((opt
= getopt(argc
, argv
, "i:e:")) != -1)
184 input
= fopen(optarg
, "r");
188 fprintf(stderr
, "Failed to open %s: %s\n",
189 optarg
, strerror(errno
));
199 jsobj
= parse_json(input
);
203 fprintf(stderr
, "Failed to parse json data\n");
208 export_json(jsobj
, optarg
);
214 json_object_put(jsobj
);