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func_json: Fix crashes for some types

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This commit fixes crashes in JSON_DECODE() for types null, true, false
and real numbers.

In addition it ensures that a path is not deeper than 32 levels.

Also allow root object to be an array.

Add unit tests for above cases.
This commit is contained in:
Bastian Triller
2023-09-21 08:24:37 +02:00
committed by asterisk-org-access-app[bot]
parent d60c3c36e7
commit 8536ce8c38
3 changed files with 77 additions and 22 deletions
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16
include/asterisk/json.h
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@@ -268,6 +268,22 @@ struct ast_json *ast_json_boolean(int value);
*/
struct ast_json *ast_json_null(void);
/*!
* \brief Check if \a value is JSON array.
* \since 12.0.0
* \retval True (non-zero) if \a value == \ref ast_json_array().
* \retval False (zero) otherwise..
*/
int ast_json_is_array(const struct ast_json *value);
/*!
* \brief Check if \a value is JSON object.
* \since 12.0.0
* \retval True (non-zero) if \a value == \ref ast_json_object().
* \retval False (zero) otherwise..
*/
int ast_json_is_object(const struct ast_json *value);
/*!
* \brief Check if \a value is JSON true.
* \since 12.0.0