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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/acme-client/jsmn.c	Lines:	0	112	0.0 %
Date:	2017-11-13	Branches:	0	145	0.0 %


/*
 Copyright (c) 2010 Serge A. Zaitsev

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.*
 */
#include "jsmn.h"

/**
 * Allocates a fresh unused token from the token pull.
 */
static jsmntok_t *jsmn_alloc_token(jsmn_parser *parser,
		jsmntok_t *tokens, size_t num_tokens) {
	jsmntok_t *tok;
	if (parser->toknext >= num_tokens) {
		return NULL;
	}
	tok = &tokens[parser->toknext++];
	tok->start = tok->end = -1;
	tok->size = 0;
#ifdef JSMN_PARENT_LINKS
	tok->parent = -1;
#endif
	return tok;
}

/**
 * Fills token type and boundaries.
 */
static void jsmn_fill_token(jsmntok_t *token, jsmntype_t type,
                            int start, int end) {
	token->type = type;
	token->start = start;
	token->end = end;
	token->size = 0;
}

/**
 * Fills next available token with JSON primitive.
 */
static int jsmn_parse_primitive(jsmn_parser *parser, const char *js,
		size_t len, jsmntok_t *tokens, size_t num_tokens) {
	jsmntok_t *token;
	int start;

	start = parser->pos;

	for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
		switch (js[parser->pos]) {
#ifndef JSMN_STRICT
			/* In strict mode primitive must be followed by "," or "}" or "]" */
			case ':':
#endif
			case '\t' : case '\r' : case '\n' : case ' ' :
			case ','  : case ']'  : case '}' :
				goto found;
		}
		if (js[parser->pos] < 32 || js[parser->pos] >= 127) {
			parser->pos = start;
			return JSMN_ERROR_INVAL;
		}
	}
#ifdef JSMN_STRICT
	/* In strict mode primitive must be followed by a comma/object/array */
	parser->pos = start;
	return JSMN_ERROR_PART;
#endif

found:
	if (tokens == NULL) {
		parser->pos--;
		return 0;
	}
	token = jsmn_alloc_token(parser, tokens, num_tokens);
	if (token == NULL) {
		parser->pos = start;
		return JSMN_ERROR_NOMEM;
	}
	jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos);
#ifdef JSMN_PARENT_LINKS
	token->parent = parser->toksuper;
#endif
	parser->pos--;
	return 0;
}

/**
 * Fills next token with JSON string.
 */
static int jsmn_parse_string(jsmn_parser *parser, const char *js,
		size_t len, jsmntok_t *tokens, size_t num_tokens) {
	jsmntok_t *token;

	int start = parser->pos;

	parser->pos++;

	/* Skip starting quote */
	for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
		char c = js[parser->pos];

		/* Quote: end of string */
		if (c == '\"') {
			if (tokens == NULL) {
				return 0;
			}
			token = jsmn_alloc_token(parser, tokens, num_tokens);
			if (token == NULL) {
				parser->pos = start;
				return JSMN_ERROR_NOMEM;
			}
			jsmn_fill_token(token, JSMN_STRING, start+1, parser->pos);
#ifdef JSMN_PARENT_LINKS
			token->parent = parser->toksuper;
#endif
			return 0;
		}

		/* Backslash: Quoted symbol expected */
		if (c == '\\' && parser->pos + 1 < len) {
			int i;
			parser->pos++;
			switch (js[parser->pos]) {
				/* Allowed escaped symbols */
				case '\"': case '/' : case '\\' : case 'b' :
				case 'f' : case 'r' : case 'n'  : case 't' :
					break;
				/* Allows escaped symbol \uXXXX */
				case 'u':
					parser->pos++;
					for(i = 0; i < 4 && parser->pos < len && js[parser->pos] != '\0'; i++) {
						/* If it isn't a hex character we have an error */
						if(!((js[parser->pos] >= 48 && js[parser->pos] <= 57) || /* 0-9 */
									(js[parser->pos] >= 65 && js[parser->pos] <= 70) || /* A-F */
									(js[parser->pos] >= 97 && js[parser->pos] <= 102))) { /* a-f */
							parser->pos = start;
							return JSMN_ERROR_INVAL;
						}
						parser->pos++;
					}
					parser->pos--;
					break;
				/* Unexpected symbol */
				default:
					parser->pos = start;
					return JSMN_ERROR_INVAL;
			}
		}
	}
	parser->pos = start;
	return JSMN_ERROR_PART;
}

/**
 * Parse JSON string and fill tokens.
 */
int jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
		jsmntok_t *tokens, unsigned int num_tokens) {
	int r;
	int i;
	jsmntok_t *token;
	int count = parser->toknext;

	for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
		char c;
		jsmntype_t type;

		c = js[parser->pos];
		switch (c) {
			case '{': case '[':
				count++;
				if (tokens == NULL) {
					break;
				}
				token = jsmn_alloc_token(parser, tokens, num_tokens);
				if (token == NULL)
					return JSMN_ERROR_NOMEM;
				if (parser->toksuper != -1) {
					tokens[parser->toksuper].size++;
#ifdef JSMN_PARENT_LINKS
					token->parent = parser->toksuper;
#endif
				}
				token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY);
				token->start = parser->pos;
				parser->toksuper = parser->toknext - 1;
				break;
			case '}': case ']':
				if (tokens == NULL)
					break;
				type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY);
#ifdef JSMN_PARENT_LINKS
				if (parser->toknext < 1) {
					return JSMN_ERROR_INVAL;
				}
				token = &tokens[parser->toknext - 1];
				for (;;) {
					if (token->start != -1 && token->end == -1) {
						if (token->type != type) {
							return JSMN_ERROR_INVAL;
						}
						token->end = parser->pos + 1;
						parser->toksuper = token->parent;
						break;
					}
					if (token->parent == -1) {
						break;
					}
					token = &tokens[token->parent];
				}
#else
				for (i = parser->toknext - 1; i >= 0; i--) {
					token = &tokens[i];
					if (token->start != -1 && token->end == -1) {
						if (token->type != type) {
							return JSMN_ERROR_INVAL;
						}
						parser->toksuper = -1;
						token->end = parser->pos + 1;
						break;
					}
				}
				/* Error if unmatched closing bracket */
				if (i == -1) return JSMN_ERROR_INVAL;
				for (; i >= 0; i--) {
					token = &tokens[i];
					if (token->start != -1 && token->end == -1) {
						parser->toksuper = i;
						break;
					}
				}
#endif
				break;
			case '\"':
				r = jsmn_parse_string(parser, js, len, tokens, num_tokens);
				if (r < 0) return r;
				count++;
				if (parser->toksuper != -1 && tokens != NULL)
					tokens[parser->toksuper].size++;
				break;
			case '\t' : case '\r' : case '\n' : case ' ':
				break;
			case ':':
				parser->toksuper = parser->toknext - 1;
				break;
			case ',':
				if (tokens != NULL && parser->toksuper != -1 &&
						tokens[parser->toksuper].type != JSMN_ARRAY &&
						tokens[parser->toksuper].type != JSMN_OBJECT) {
#ifdef JSMN_PARENT_LINKS
					parser->toksuper = tokens[parser->toksuper].parent;
#else
					for (i = parser->toknext - 1; i >= 0; i--) {
						if (tokens[i].type == JSMN_ARRAY || tokens[i].type == JSMN_OBJECT) {
							if (tokens[i].start != -1 && tokens[i].end == -1) {
								parser->toksuper = i;
								break;
							}
						}
					}
#endif
				}
				break;
#ifdef JSMN_STRICT
			/* In strict mode primitives are: numbers and booleans */
			case '-': case '0': case '1' : case '2': case '3' : case '4':
			case '5': case '6': case '7' : case '8': case '9':
			case 't': case 'f': case 'n' :
				/* And they must not be keys of the object */
				if (tokens != NULL && parser->toksuper != -1) {
					jsmntok_t *t = &tokens[parser->toksuper];
					if (t->type == JSMN_OBJECT ||
							(t->type == JSMN_STRING && t->size != 0)) {
						return JSMN_ERROR_INVAL;
					}
				}
#else
			/* In non-strict mode every unquoted value is a primitive */
			default:
#endif
				r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens);
				if (r < 0) return r;
				count++;
				if (parser->toksuper != -1 && tokens != NULL)
					tokens[parser->toksuper].size++;
				break;

#ifdef JSMN_STRICT
			/* Unexpected char in strict mode */
			default:
				return JSMN_ERROR_INVAL;
#endif
		}
	}

	if (tokens != NULL) {
		for (i = parser->toknext - 1; i >= 0; i--) {
			/* Unmatched opened object or array */
			if (tokens[i].start != -1 && tokens[i].end == -1) {
				return JSMN_ERROR_PART;
			}
		}
	}

	return count;
}

/**
 * Creates a new parser based over a given  buffer with an array of tokens
 * available.
 */
void jsmn_init(jsmn_parser *parser) {
	parser->pos = 0;
	parser->toknext = 0;
	parser->toksuper = -1;
}



Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/*
2			Copyright (c) 2010 Serge A. Zaitsev
3
4			Permission is hereby granted, free of charge, to any person obtaining a copy
5			of this software and associated documentation files (the "Software"), to deal
6			in the Software without restriction, including without limitation the rights
7			to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8			copies of the Software, and to permit persons to whom the Software is
9			furnished to do so, subject to the following conditions:
10
11			The above copyright notice and this permission notice shall be included in
12			all copies or substantial portions of the Software.
13
14			THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15			IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16			FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17			AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18			LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19			OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20			THE SOFTWARE.*
21			*/
22			#include "jsmn.h"
23
24			/**
25			* Allocates a fresh unused token from the token pull.
26			*/
27			static jsmntok_t jsmn_alloc_token(jsmn_parser parser,
28			jsmntok_t *tokens, size_t num_tokens) {
29			jsmntok_t *tok;
30			if (parser->toknext >= num_tokens) {
31			return NULL;
32			}
33			tok = &tokens[parser->toknext++];
34			tok->start = tok->end = -1;
35			tok->size = 0;
36			#ifdef JSMN_PARENT_LINKS
37			tok->parent = -1;
38			#endif
39			return tok;
40			}
41
42			/**
43			* Fills token type and boundaries.
44			*/
45			static void jsmn_fill_token(jsmntok_t *token, jsmntype_t type,
46			int start, int end) {
47			token->type = type;
48			token->start = start;
49			token->end = end;
50			token->size = 0;
51			}
52
53			/**
54			* Fills next available token with JSON primitive.
55			*/
56			static int jsmn_parse_primitive(jsmn_parser parser, const char js,
57			size_t len, jsmntok_t *tokens, size_t num_tokens) {
58			jsmntok_t *token;
59			int start;
60
61			start = parser->pos;
62
63			for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
64			switch (js[parser->pos]) {
65			#ifndef JSMN_STRICT
66			/* In strict mode primitive must be followed by "," or "}" or "]" */
67			case ':':
68			#endif
69			case '\t' : case '\r' : case '\n' : case ' ' :
70			case ',' : case ']' : case '}' :
71			goto found;
72			}
73			if (js[parser->pos] < 32 \|\| js[parser->pos] >= 127) {
74			parser->pos = start;
75			return JSMN_ERROR_INVAL;
76			}
77			}
78			#ifdef JSMN_STRICT
79			/* In strict mode primitive must be followed by a comma/object/array */
80			parser->pos = start;
81			return JSMN_ERROR_PART;
82			#endif
83
84			found:
85			if (tokens == NULL) {
86			parser->pos--;
87			return 0;
88			}
89			token = jsmn_alloc_token(parser, tokens, num_tokens);
90			if (token == NULL) {
91			parser->pos = start;
92			return JSMN_ERROR_NOMEM;
93			}
94			jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos);
95			#ifdef JSMN_PARENT_LINKS
96			token->parent = parser->toksuper;
97			#endif
98			parser->pos--;
99			return 0;
100			}
101
102			/**
103			* Fills next token with JSON string.
104			*/
105			static int jsmn_parse_string(jsmn_parser parser, const char js,
106			size_t len, jsmntok_t *tokens, size_t num_tokens) {
107			jsmntok_t *token;
108
109			int start = parser->pos;
110
111			parser->pos++;
112
113			/* Skip starting quote */
114			for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
115			char c = js[parser->pos];
116
117			/* Quote: end of string */
118			if (c == '\"') {
119			if (tokens == NULL) {
120			return 0;
121			}
122			token = jsmn_alloc_token(parser, tokens, num_tokens);
123			if (token == NULL) {
124			parser->pos = start;
125			return JSMN_ERROR_NOMEM;
126			}
127			jsmn_fill_token(token, JSMN_STRING, start+1, parser->pos);
128			#ifdef JSMN_PARENT_LINKS
129			token->parent = parser->toksuper;
130			#endif
131			return 0;
132			}
133
134			/* Backslash: Quoted symbol expected */
135			if (c == '\\' && parser->pos + 1 < len) {
136			int i;
137			parser->pos++;
138			switch (js[parser->pos]) {
139			/* Allowed escaped symbols */
140			case '\"': case '/' : case '\\' : case 'b' :
141			case 'f' : case 'r' : case 'n' : case 't' :
142			break;
143			/* Allows escaped symbol \uXXXX */
144			case 'u':
145			parser->pos++;
146			for(i = 0; i < 4 && parser->pos < len && js[parser->pos] != '\0'; i++) {
147			/* If it isn't a hex character we have an error */
148			if(!((js[parser->pos] >= 48 && js[parser->pos] <= 57) \|\| /* 0-9 */
149			(js[parser->pos] >= 65 && js[parser->pos] <= 70) \|\| /* A-F */
150			(js[parser->pos] >= 97 && js[parser->pos] <= 102))) { /* a-f */
151			parser->pos = start;
152			return JSMN_ERROR_INVAL;
153			}
154			parser->pos++;
155			}
156			parser->pos--;
157			break;
158			/* Unexpected symbol */
159			default:
160			parser->pos = start;
161			return JSMN_ERROR_INVAL;
162			}
163			}
164			}
165			parser->pos = start;
166			return JSMN_ERROR_PART;
167			}
168
169			/**
170			* Parse JSON string and fill tokens.
171			*/
172			int jsmn_parse(jsmn_parser parser, const char js, size_t len,
173			jsmntok_t *tokens, unsigned int num_tokens) {
174			int r;
175			int i;
176			jsmntok_t *token;
177			int count = parser->toknext;
178
179			for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
180			char c;
181			jsmntype_t type;
182
183			c = js[parser->pos];
184			switch (c) {
185			case '{': case '[':
186			count++;
187			if (tokens == NULL) {
188			break;
189			}
190			token = jsmn_alloc_token(parser, tokens, num_tokens);
191			if (token == NULL)
192			return JSMN_ERROR_NOMEM;
193			if (parser->toksuper != -1) {
194			tokens[parser->toksuper].size++;
195			#ifdef JSMN_PARENT_LINKS
196			token->parent = parser->toksuper;
197			#endif
198			}
199			token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY);
200			token->start = parser->pos;
201			parser->toksuper = parser->toknext - 1;
202			break;
203			case '}': case ']':
204			if (tokens == NULL)
205			break;
206			type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY);
207			#ifdef JSMN_PARENT_LINKS
208			if (parser->toknext < 1) {
209			return JSMN_ERROR_INVAL;
210			}
211			token = &tokens[parser->toknext - 1];
212			for (;;) {
213			if (token->start != -1 && token->end == -1) {
214			if (token->type != type) {
215			return JSMN_ERROR_INVAL;
216			}
217			token->end = parser->pos + 1;
218			parser->toksuper = token->parent;
219			break;
220			}
221			if (token->parent == -1) {
222			break;
223			}
224			token = &tokens[token->parent];
225			}
226			#else
227			for (i = parser->toknext - 1; i >= 0; i--) {
228			token = &tokens[i];
229			if (token->start != -1 && token->end == -1) {
230			if (token->type != type) {
231			return JSMN_ERROR_INVAL;
232			}
233			parser->toksuper = -1;
234			token->end = parser->pos + 1;
235			break;
236			}
237			}
238			/* Error if unmatched closing bracket */
239			if (i == -1) return JSMN_ERROR_INVAL;
240			for (; i >= 0; i--) {
241			token = &tokens[i];
242			if (token->start != -1 && token->end == -1) {
243			parser->toksuper = i;
244			break;
245			}
246			}
247			#endif
248			break;
249			case '\"':
250			r = jsmn_parse_string(parser, js, len, tokens, num_tokens);
251			if (r < 0) return r;
252			count++;
253			if (parser->toksuper != -1 && tokens != NULL)
254			tokens[parser->toksuper].size++;
255			break;
256			case '\t' : case '\r' : case '\n' : case ' ':
257			break;
258			case ':':
259			parser->toksuper = parser->toknext - 1;
260			break;
261			case ',':
262			if (tokens != NULL && parser->toksuper != -1 &&
263			tokens[parser->toksuper].type != JSMN_ARRAY &&
264			tokens[parser->toksuper].type != JSMN_OBJECT) {
265			#ifdef JSMN_PARENT_LINKS
266			parser->toksuper = tokens[parser->toksuper].parent;
267			#else
268			for (i = parser->toknext - 1; i >= 0; i--) {
269			if (tokens[i].type == JSMN_ARRAY \|\| tokens[i].type == JSMN_OBJECT) {
270			if (tokens[i].start != -1 && tokens[i].end == -1) {
271			parser->toksuper = i;
272			break;
273			}
274			}
275			}
276			#endif
277			}
278			break;
279			#ifdef JSMN_STRICT
280			/* In strict mode primitives are: numbers and booleans */
281			case '-': case '0': case '1' : case '2': case '3' : case '4':
282			case '5': case '6': case '7' : case '8': case '9':
283			case 't': case 'f': case 'n' :
284			/* And they must not be keys of the object */
285			if (tokens != NULL && parser->toksuper != -1) {
286			jsmntok_t *t = &tokens[parser->toksuper];
287			if (t->type == JSMN_OBJECT \|\|
288			(t->type == JSMN_STRING && t->size != 0)) {
289			return JSMN_ERROR_INVAL;
290			}
291			}
292			#else
293			/* In non-strict mode every unquoted value is a primitive */
294			default:
295			#endif
296			r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens);
297			if (r < 0) return r;
298			count++;
299			if (parser->toksuper != -1 && tokens != NULL)
300			tokens[parser->toksuper].size++;
301			break;
302
303			#ifdef JSMN_STRICT
304			/* Unexpected char in strict mode */
305			default:
306			return JSMN_ERROR_INVAL;
307			#endif
308			}
309			}
310
311			if (tokens != NULL) {
312			for (i = parser->toknext - 1; i >= 0; i--) {
313			/* Unmatched opened object or array */
314			if (tokens[i].start != -1 && tokens[i].end == -1) {
315			return JSMN_ERROR_PART;
316			}
317			}
318			}
319
320			return count;
321			}
322
323			/**
324			* Creates a new parser based over a given buffer with an array of tokens
325			* available.
326			*/
327			void jsmn_init(jsmn_parser *parser) {
328			parser->pos = 0;
329			parser->toknext = 0;
330			parser->toksuper = -1;
331			}
332