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1 | /* |
2 | * Copyright (c) 2009-2016 Petri Lehtinen <petri@digip.org> | |
3 | * Copyright (c) 2011-2012 Basile Starynkevitch <basile@starynkevitch.net> | |
4 | * | |
5 | * Jansson is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the MIT license. See LICENSE for details. | |
7 | */ | |
8 | ||
9 | #include <stdlib.h> | |
10 | #include <string.h> | |
11 | ||
12 | #include "jansson.h" | |
13 | #include "jansson_private.h" | |
14 | ||
15 | /* C89 allows these to be macros */ | |
16 | #undef malloc | |
17 | #undef free | |
18 | ||
19 | /* memory function pointers */ | |
20 | static json_malloc_t do_malloc = malloc; | |
21 | static json_free_t do_free = free; | |
22 | ||
23 | void *jsonp_malloc(size_t size) | |
24 | { | |
25 | if(!size) | |
26 | return NULL; | |
27 | ||
28 | return (*do_malloc)(size); | |
29 | } | |
30 | ||
31 | void jsonp_free(void *ptr) | |
32 | { | |
33 | if(!ptr) | |
34 | return; | |
35 | ||
36 | (*do_free)(ptr); | |
37 | } | |
38 | ||
39 | char *jsonp_strdup(const char *str) | |
40 | { | |
41 | return jsonp_strndup(str, strlen(str)); | |
42 | } | |
43 | ||
44 | char *jsonp_strndup(const char *str, size_t len) | |
45 | { | |
46 | char *new_str; | |
47 | ||
48 | new_str = jsonp_malloc(len + 1); | |
49 | if(!new_str) | |
50 | return NULL; | |
51 | ||
52 | memcpy(new_str, str, len); | |
53 | new_str[len] = '\0'; | |
54 | return new_str; | |
55 | } | |
56 | ||
57 | void json_set_alloc_funcs(json_malloc_t malloc_fn, json_free_t free_fn) | |
58 | { | |
59 | do_malloc = malloc_fn; | |
60 | do_free = free_fn; | |
61 | } | |
62 | ||
63 | void json_get_alloc_funcs(json_malloc_t *malloc_fn, json_free_t *free_fn) | |
64 | { | |
65 | if (malloc_fn) | |
66 | *malloc_fn = do_malloc; | |
67 | if (free_fn) | |
68 | *free_fn = do_free; | |
69 | } |