Added JSON native file support.

libjsmn has also been moved from epan/ to wsutil/ to make it visible from wiretap.

Change-Id: I59abb3419acb1baa83194b38152d3651ed5c123c
Bug: 10878
Reviewed-on: https://code.wireshark.org/review/6716
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>

1 files changed, 119 insertions, 0 deletions

diff --git a/wsutil/jsmn.h b/wsutil/jsmn.h
new file mode 100644
index 0000000000..e4817dac5b
--- /dev/null
+++ b/wsutil/jsmn.h
@@ -0,0 +1,119 @@
+/*
+ * 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.
+ */
+
+#ifndef __JSMN_H_
+#define __JSMN_H_
+
+#include <stddef.h>
+
+#include <glib.h>
+#include <ws_symbol_export.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * JSON type identifier. Basic types are:
+ *  o Object
+ *  o Array
+ *  o String
+ *  o Other primitive: number, boolean (true/false) or null
+ */
+typedef enum {
+	JSMN_PRIMITIVE = 0,
+	JSMN_OBJECT = 1,
+	JSMN_ARRAY = 2,
+	JSMN_STRING = 3
+} jsmntype_t;
+
+typedef enum {
+	/* Not enough tokens were provided */
+	JSMN_ERROR_NOMEM = -1,
+	/* Invalid character inside JSON string */
+	JSMN_ERROR_INVAL = -2,
+	/* The string is not a full JSON packet, more bytes expected */
+	JSMN_ERROR_PART = -3
+} jsmnerr_t;
+
+/**
+ * JSON token description.
+ * type  type (object, array, string etc.)
+ * start start position in JSON data string
+ * end   end position in JSON data string
+ * size  the size of the token
+ */
+typedef struct {
+	jsmntype_t type;
+	int start;
+	int end;
+	int size;
+#ifdef JSMN_PARENT_LINKS
+	int parent;
+#endif
+} jsmntok_t;
+
+/**
+ * JSON parser. Contains an array of token blocks available. Also stores
+ * the string being parsed now and current position in that string
+ */
+typedef struct {
+	unsigned int pos;           /* offset in the JSON string */
+	unsigned int toknext;       /* next token to allocate */
+	int toksuper;      /* superior token node, e.g parent object or array */
+} jsmn_parser;
+
+/**
+ * Create JSON parser over an array of tokens
+ */
+WS_DLL_PUBLIC void jsmn_init(jsmn_parser *parser);
+
+/**
+ * Run JSON parser. It parses a JSON data string into and array of tokens, each describing
+ * a single JSON object.
+ */
+int jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
+		jsmntok_t *tokens, unsigned int num_tokens);
+
+/**
+ * Check if a buffer is json an returns true if it is.
+ */
+WS_DLL_PUBLIC gboolean jsmn_is_json(const guint8* buf, const size_t len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __JSMN_H_ */
+
+/*
+ * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * vi: set shiftwidth=4 tabstop=4 noexpandtab:
+ * :indentSize=4:tabSize=8:noTabs=false:
+ */