diff options
Diffstat (limited to 'src/jsmn.h')
| -rw-r--r-- | src/jsmn.h | 18 |
1 files changed, 12 insertions, 6 deletions
@@ -3,6 +3,8 @@ * Simple JSON parser (header file) * * Copyright (c) 2010 Serge A. Zaitsev + * Updated to use size_t for token offsets and harden against overflows. + * (Nikias Bassen, January 2026) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal @@ -25,6 +27,8 @@ #ifndef __JSMN_H_ #define __JSMN_H_ +#include <stddef.h> + /** * JSON type identifier. Basic types are: * o Object @@ -46,6 +50,8 @@ typedef enum { JSMN_ERROR_INVAL = -2, /* The string is not a full JSON packet, more bytes expected */ JSMN_ERROR_PART = -3, + /* Input exceeds implementation-defined limits */ + JSMN_ERROR_LIMIT = -4, /* Everything was fine */ JSMN_SUCCESS = 0 } jsmnerr_t; @@ -58,9 +64,9 @@ typedef enum { */ typedef struct { jsmntype_t type; - int start; - int end; - int size; + size_t start; + size_t end; + size_t size; #ifdef JSMN_PARENT_LINKS int parent; #endif @@ -71,8 +77,8 @@ typedef struct { * the string being parsed now and current position in that string */ typedef struct { - unsigned int pos; /* offset in the JSON string */ - unsigned int end; /* offset after last character of JSON string */ + size_t pos; /* offset in the JSON string */ + size_t end; /* offset after last character of JSON string */ int toknext; /* next token to allocate */ int toksuper; /* superior token node, e.g parent object or array */ } jsmn_parser; @@ -86,7 +92,7 @@ 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. */ -jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js, unsigned int length, +jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js, size_t length, jsmntok_t *tokens, unsigned int num_tokens); #endif /* __JSMN_H_ */ |