| 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 | } |