is_json.c (48c779cdecb5f803e5fe5d761987e976ca9609db) is_json.c (2726a7014867ad7224d09b66836c5d385f0350f4)
1/*-
2 * Copyright (c) 2018 Christos Zoulas
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
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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27/*
28 * Parse JSON object serialization format (RFC-7159)
29 */
30
31#ifndef TEST
32#include "file.h"
33
34#ifndef lint
1/*-
2 * Copyright (c) 2018 Christos Zoulas
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
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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27/*
28 * Parse JSON object serialization format (RFC-7159)
29 */
30
31#ifndef TEST
32#include "file.h"
33
34#ifndef lint
35FILE_RCSID("@(#)$File: is_json.c,v 1.13 2019/03/02 01:08:10 christos Exp $")
35FILE_RCSID("@(#)$File: is_json.c,v 1.15 2020/06/07 19:05:47 christos Exp $")
36#endif
37
38#include <string.h>
39#include "magic.h"
40#endif
41
42#ifdef DEBUG
43#include <stdio.h>

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151 if (!json_isxdigit(*uc++))
152 goto out;
153 continue;
154 default:
155 goto out;
156 }
157 case '"':
158 *ucp = uc;
36#endif
37
38#include <string.h>
39#include "magic.h"
40#endif
41
42#ifdef DEBUG
43#include <stdio.h>

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151 if (!json_isxdigit(*uc++))
152 goto out;
153 continue;
154 default:
155 goto out;
156 }
157 case '"':
158 *ucp = uc;
159 DPRINTF("Good string: ", uc, *ucp);
159 return 1;
160 default:
161 continue;
162 }
163 }
164out:
165 DPRINTF("Bad string: ", uc, *ucp);
166 *ucp = uc;
167 return 0;
168}
169
170static int
171json_parse_array(const unsigned char **ucp, const unsigned char *ue,
172 size_t *st, size_t lvl)
173{
174 const unsigned char *uc = *ucp;
160 return 1;
161 default:
162 continue;
163 }
164 }
165out:
166 DPRINTF("Bad string: ", uc, *ucp);
167 *ucp = uc;
168 return 0;
169}
170
171static int
172json_parse_array(const unsigned char **ucp, const unsigned char *ue,
173 size_t *st, size_t lvl)
174{
175 const unsigned char *uc = *ucp;
175 int more = 0; /* Array has more than 1 element */
176
177 DPRINTF("Parse array: ", uc, *ucp);
178 while (uc < ue) {
176
177 DPRINTF("Parse array: ", uc, *ucp);
178 while (uc < ue) {
179 if (*uc == ']')
180 goto done;
179 if (!json_parse(&uc, ue, st, lvl + 1))
180 goto out;
181 if (uc == ue)
182 goto out;
183 switch (*uc) {
184 case ',':
181 if (!json_parse(&uc, ue, st, lvl + 1))
182 goto out;
183 if (uc == ue)
184 goto out;
185 switch (*uc) {
186 case ',':
185 more++;
186 uc++;
187 continue;
188 case ']':
187 uc++;
188 continue;
189 case ']':
189 if (more)
190 st[JSON_ARRAYN]++;
190 done:
191 st[JSON_ARRAYN]++;
191 *ucp = uc + 1;
192 *ucp = uc + 1;
193 DPRINTF("Good array: ", uc, *ucp);
192 return 1;
193 default:
194 goto out;
195 }
196 }
197out:
198 DPRINTF("Bad array: ", uc, *ucp);
199 *ucp = uc;

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205 size_t *st, size_t lvl)
206{
207 const unsigned char *uc = *ucp;
208 DPRINTF("Parse object: ", uc, *ucp);
209 while (uc < ue) {
210 uc = json_skip_space(uc, ue);
211 if (uc == ue)
212 goto out;
194 return 1;
195 default:
196 goto out;
197 }
198 }
199out:
200 DPRINTF("Bad array: ", uc, *ucp);
201 *ucp = uc;

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207 size_t *st, size_t lvl)
208{
209 const unsigned char *uc = *ucp;
210 DPRINTF("Parse object: ", uc, *ucp);
211 while (uc < ue) {
212 uc = json_skip_space(uc, ue);
213 if (uc == ue)
214 goto out;
215 if (*uc == '}') {
216 uc++;
217 goto done;
218 }
213 if (*uc++ != '"') {
214 DPRINTF("not string", uc, *ucp);
215 goto out;
216 }
217 DPRINTF("next field", uc, *ucp);
218 if (!json_parse_string(&uc, ue)) {
219 DPRINTF("not string", uc, *ucp);
220 goto out;

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231 goto out;
232 }
233 if (uc == ue)
234 goto out;
235 switch (*uc++) {
236 case ',':
237 continue;
238 case '}': /* { */
219 if (*uc++ != '"') {
220 DPRINTF("not string", uc, *ucp);
221 goto out;
222 }
223 DPRINTF("next field", uc, *ucp);
224 if (!json_parse_string(&uc, ue)) {
225 DPRINTF("not string", uc, *ucp);
226 goto out;

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237 goto out;
238 }
239 if (uc == ue)
240 goto out;
241 switch (*uc++) {
242 case ',':
243 continue;
244 case '}': /* { */
245 done:
239 *ucp = uc;
240 DPRINTF("Good object: ", uc, *ucp);
241 return 1;
242 default:
243 *ucp = uc - 1;
244 DPRINTF("not more", uc, *ucp);
245 goto out;
246 }

--- 216 unchanged lines hidden --- 		246 *ucp = uc;
247 DPRINTF("Good object: ", uc, *ucp);
248 return 1;
249 default:
250 *ucp = uc - 1;
251 DPRINTF("not more", uc, *ucp);
252 goto out;
253 }

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