--- /dev/null
+/*
+ * Copyright (c) 2009-2016 Petri Lehtinen <petri@digip.org>
+ *
+ * Jansson is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include <jansson_private_config.h>
+#endif
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+
+#include "jansson.h"
+#include "hashtable.h"
+#include "jansson_private.h"
+#include "utf.h"
+
+/* Work around nonstandard isnan() and isinf() implementations */
+#ifndef isnan
+#ifndef __sun
+static JSON_INLINE int isnan(double x) { return x != x; }
+#endif
+#endif
+#ifndef isinf
+static JSON_INLINE int isinf(double x) { return !isnan(x) && isnan(x - x); }
+#endif
+
+static JSON_INLINE void json_init(json_t *json, json_type type)
+{
+ json->type = type;
+ json->refcount = 1;
+}
+
+
+/*** object ***/
+
+extern volatile uint32_t hashtable_seed;
+
+json_t *json_object(void)
+{
+ json_object_t *object = jsonp_malloc(sizeof(json_object_t));
+ if(!object)
+ return NULL;
+
+ if (!hashtable_seed) {
+ /* Autoseed */
+ json_object_seed(0);
+ }
+
+ json_init(&object->json, JSON_OBJECT);
+
+ if(hashtable_init(&object->hashtable))
+ {
+ jsonp_free(object);
+ return NULL;
+ }
+
+ return &object->json;
+}
+
+static void json_delete_object(json_object_t *object)
+{
+ hashtable_close(&object->hashtable);
+ jsonp_free(object);
+}
+
+size_t json_object_size(const json_t *json)
+{
+ json_object_t *object;
+
+ if(!json_is_object(json))
+ return 0;
+
+ object = json_to_object(json);
+ return object->hashtable.size;
+}
+
+json_t *json_object_get(const json_t *json, const char *key)
+{
+ json_object_t *object;
+
+ if(!key || !json_is_object(json))
+ return NULL;
+
+ object = json_to_object(json);
+ return hashtable_get(&object->hashtable, key);
+}
+
+int json_object_set_new_nocheck(json_t *json, const char *key, json_t *value)
+{
+ json_object_t *object;
+
+ if(!value)
+ return -1;
+
+ if(!key || !json_is_object(json) || json == value)
+ {
+ json_decref(value);
+ return -1;
+ }
+ object = json_to_object(json);
+
+ if(hashtable_set(&object->hashtable, key, value))
+ {
+ json_decref(value);
+ return -1;
+ }
+
+ return 0;
+}
+
+int json_object_set_new(json_t *json, const char *key, json_t *value)
+{
+ if(!key || !utf8_check_string(key, strlen(key)))
+ {
+ json_decref(value);
+ return -1;
+ }
+
+ return json_object_set_new_nocheck(json, key, value);
+}
+
+int json_object_del(json_t *json, const char *key)
+{
+ json_object_t *object;
+
+ if(!key || !json_is_object(json))
+ return -1;
+
+ object = json_to_object(json);
+ return hashtable_del(&object->hashtable, key);
+}
+
+int json_object_clear(json_t *json)
+{
+ json_object_t *object;
+
+ if(!json_is_object(json))
+ return -1;
+
+ object = json_to_object(json);
+ hashtable_clear(&object->hashtable);
+
+ return 0;
+}
+
+int json_object_update(json_t *object, json_t *other)
+{
+ const char *key;
+ json_t *value;
+
+ if(!json_is_object(object) || !json_is_object(other))
+ return -1;
+
+ json_object_foreach(other, key, value) {
+ if(json_object_set_nocheck(object, key, value))
+ return -1;
+ }
+
+ return 0;
+}
+
+int json_object_update_existing(json_t *object, json_t *other)
+{
+ const char *key;
+ json_t *value;
+
+ if(!json_is_object(object) || !json_is_object(other))
+ return -1;
+
+ json_object_foreach(other, key, value) {
+ if(json_object_get(object, key))
+ json_object_set_nocheck(object, key, value);
+ }
+
+ return 0;
+}
+
+int json_object_update_missing(json_t *object, json_t *other)
+{
+ const char *key;
+ json_t *value;
+
+ if(!json_is_object(object) || !json_is_object(other))
+ return -1;
+
+ json_object_foreach(other, key, value) {
+ if(!json_object_get(object, key))
+ json_object_set_nocheck(object, key, value);
+ }
+
+ return 0;
+}
+
+void *json_object_iter(json_t *json)
+{
+ json_object_t *object;
+
+ if(!json_is_object(json))
+ return NULL;
+
+ object = json_to_object(json);
+ return hashtable_iter(&object->hashtable);
+}
+
+void *json_object_iter_at(json_t *json, const char *key)
+{
+ json_object_t *object;
+
+ if(!key || !json_is_object(json))
+ return NULL;
+
+ object = json_to_object(json);
+ return hashtable_iter_at(&object->hashtable, key);
+}
+
+void *json_object_iter_next(json_t *json, void *iter)
+{
+ json_object_t *object;
+
+ if(!json_is_object(json) || iter == NULL)
+ return NULL;
+
+ object = json_to_object(json);
+ return hashtable_iter_next(&object->hashtable, iter);
+}
+
+const char *json_object_iter_key(void *iter)
+{
+ if(!iter)
+ return NULL;
+
+ return hashtable_iter_key(iter);
+}
+
+json_t *json_object_iter_value(void *iter)
+{
+ if(!iter)
+ return NULL;
+
+ return (json_t *)hashtable_iter_value(iter);
+}
+
+int json_object_iter_set_new(json_t *json, void *iter, json_t *value)
+{
+ if(!json_is_object(json) || !iter || !value)
+ {
+ json_decref(value);
+ return -1;
+ }
+
+ hashtable_iter_set(iter, value);
+ return 0;
+}
+
+void *json_object_key_to_iter(const char *key)
+{
+ if(!key)
+ return NULL;
+
+ return hashtable_key_to_iter(key);
+}
+
+static int json_object_equal(const json_t *object1, const json_t *object2)
+{
+ const char *key;
+ const json_t *value1, *value2;
+
+ if(json_object_size(object1) != json_object_size(object2))
+ return 0;
+
+ json_object_foreach((json_t *)object1, key, value1) {
+ value2 = json_object_get(object2, key);
+
+ if(!json_equal(value1, value2))
+ return 0;
+ }
+
+ return 1;
+}
+
+static json_t *json_object_copy(json_t *object)
+{
+ json_t *result;
+
+ const char *key;
+ json_t *value;
+
+ result = json_object();
+ if(!result)
+ return NULL;
+
+ json_object_foreach(object, key, value)
+ json_object_set_nocheck(result, key, value);
+
+ return result;
+}
+
+static json_t *json_object_deep_copy(const json_t *object)
+{
+ json_t *result;
+ void *iter;
+
+ result = json_object();
+ if(!result)
+ return NULL;
+
+ /* Cannot use json_object_foreach because object has to be cast
+ non-const */
+ iter = json_object_iter((json_t *)object);
+ while(iter) {
+ const char *key;
+ const json_t *value;
+ key = json_object_iter_key(iter);
+ value = json_object_iter_value(iter);
+
+ json_object_set_new_nocheck(result, key, json_deep_copy(value));
+ iter = json_object_iter_next((json_t *)object, iter);
+ }
+
+ return result;
+}
+
+
+/*** array ***/
+
+json_t *json_array(void)
+{
+ json_array_t *array = jsonp_malloc(sizeof(json_array_t));
+ if(!array)
+ return NULL;
+ json_init(&array->json, JSON_ARRAY);
+
+ array->entries = 0;
+ array->size = 8;
+
+ array->table = jsonp_malloc(array->size * sizeof(json_t *));
+ if(!array->table) {
+ jsonp_free(array);
+ return NULL;
+ }
+
+ return &array->json;
+}
+
+static void json_delete_array(json_array_t *array)
+{
+ size_t i;
+
+ for(i = 0; i < array->entries; i++)
+ json_decref(array->table[i]);
+
+ jsonp_free(array->table);
+ jsonp_free(array);
+}
+
+size_t json_array_size(const json_t *json)
+{
+ if(!json_is_array(json))
+ return 0;
+
+ return json_to_array(json)->entries;
+}
+
+json_t *json_array_get(const json_t *json, size_t index)
+{
+ json_array_t *array;
+ if(!json_is_array(json))
+ return NULL;
+ array = json_to_array(json);
+
+ if(index >= array->entries)
+ return NULL;
+
+ return array->table[index];
+}
+
+int json_array_set_new(json_t *json, size_t index, json_t *value)
+{
+ json_array_t *array;
+
+ if(!value)
+ return -1;
+
+ if(!json_is_array(json) || json == value)
+ {
+ json_decref(value);
+ return -1;
+ }
+ array = json_to_array(json);
+
+ if(index >= array->entries)
+ {
+ json_decref(value);
+ return -1;
+ }
+
+ json_decref(array->table[index]);
+ array->table[index] = value;
+
+ return 0;
+}
+
+static void array_move(json_array_t *array, size_t dest,
+ size_t src, size_t count)
+{
+ memmove(&array->table[dest], &array->table[src], count * sizeof(json_t *));
+}
+
+static void array_copy(json_t **dest, size_t dpos,
+ json_t **src, size_t spos,
+ size_t count)
+{
+ memcpy(&dest[dpos], &src[spos], count * sizeof(json_t *));
+}
+
+static json_t **json_array_grow(json_array_t *array,
+ size_t amount,
+ int copy)
+{
+ size_t new_size;
+ json_t **old_table, **new_table;
+
+ if(array->entries + amount <= array->size)
+ return array->table;
+
+ old_table = array->table;
+
+ new_size = max(array->size + amount, array->size * 2);
+ new_table = jsonp_malloc(new_size * sizeof(json_t *));
+ if(!new_table)
+ return NULL;
+
+ array->size = new_size;
+ array->table = new_table;
+
+ if(copy) {
+ array_copy(array->table, 0, old_table, 0, array->entries);
+ jsonp_free(old_table);
+ return array->table;
+ }
+
+ return old_table;
+}
+
+int json_array_append_new(json_t *json, json_t *value)
+{
+ json_array_t *array;
+
+ if(!value)
+ return -1;
+
+ if(!json_is_array(json) || json == value)
+ {
+ json_decref(value);
+ return -1;
+ }
+ array = json_to_array(json);
+
+ if(!json_array_grow(array, 1, 1)) {
+ json_decref(value);
+ return -1;
+ }
+
+ array->table[array->entries] = value;
+ array->entries++;
+
+ return 0;
+}
+
+int json_array_insert_new(json_t *json, size_t index, json_t *value)
+{
+ json_array_t *array;
+ json_t **old_table;
+
+ if(!value)
+ return -1;
+
+ if(!json_is_array(json) || json == value) {
+ json_decref(value);
+ return -1;
+ }
+ array = json_to_array(json);
+
+ if(index > array->entries) {
+ json_decref(value);
+ return -1;
+ }
+
+ old_table = json_array_grow(array, 1, 0);
+ if(!old_table) {
+ json_decref(value);
+ return -1;
+ }
+
+ if(old_table != array->table) {
+ array_copy(array->table, 0, old_table, 0, index);
+ array_copy(array->table, index + 1, old_table, index,
+ array->entries - index);
+ jsonp_free(old_table);
+ }
+ else
+ array_move(array, index + 1, index, array->entries - index);
+
+ array->table[index] = value;
+ array->entries++;
+
+ return 0;
+}
+
+int json_array_remove(json_t *json, size_t index)
+{
+ json_array_t *array;
+
+ if(!json_is_array(json))
+ return -1;
+ array = json_to_array(json);
+
+ if(index >= array->entries)
+ return -1;
+
+ json_decref(array->table[index]);
+
+ /* If we're removing the last element, nothing has to be moved */
+ if(index < array->entries - 1)
+ array_move(array, index, index + 1, array->entries - index - 1);
+
+ array->entries--;
+
+ return 0;
+}
+
+int json_array_clear(json_t *json)
+{
+ json_array_t *array;
+ size_t i;
+
+ if(!json_is_array(json))
+ return -1;
+ array = json_to_array(json);
+
+ for(i = 0; i < array->entries; i++)
+ json_decref(array->table[i]);
+
+ array->entries = 0;
+ return 0;
+}
+
+int json_array_extend(json_t *json, json_t *other_json)
+{
+ json_array_t *array, *other;
+ size_t i;
+
+ if(!json_is_array(json) || !json_is_array(other_json))
+ return -1;
+ array = json_to_array(json);
+ other = json_to_array(other_json);
+
+ if(!json_array_grow(array, other->entries, 1))
+ return -1;
+
+ for(i = 0; i < other->entries; i++)
+ json_incref(other->table[i]);
+
+ array_copy(array->table, array->entries, other->table, 0, other->entries);
+
+ array->entries += other->entries;
+ return 0;
+}
+
+static int json_array_equal(const json_t *array1, const json_t *array2)
+{
+ size_t i, size;
+
+ size = json_array_size(array1);
+ if(size != json_array_size(array2))
+ return 0;
+
+ for(i = 0; i < size; i++)
+ {
+ json_t *value1, *value2;
+
+ value1 = json_array_get(array1, i);
+ value2 = json_array_get(array2, i);
+
+ if(!json_equal(value1, value2))
+ return 0;
+ }
+
+ return 1;
+}
+
+static json_t *json_array_copy(json_t *array)
+{
+ json_t *result;
+ size_t i;
+
+ result = json_array();
+ if(!result)
+ return NULL;
+
+ for(i = 0; i < json_array_size(array); i++)
+ json_array_append(result, json_array_get(array, i));
+
+ return result;
+}
+
+static json_t *json_array_deep_copy(const json_t *array)
+{
+ json_t *result;
+ size_t i;
+
+ result = json_array();
+ if(!result)
+ return NULL;
+
+ for(i = 0; i < json_array_size(array); i++)
+ json_array_append_new(result, json_deep_copy(json_array_get(array, i)));
+
+ return result;
+}
+
+/*** string ***/
+
+static json_t *string_create(const char *value, size_t len, int own)
+{
+ char *v;
+ json_string_t *string;
+
+ if(!value)
+ return NULL;
+
+ if(own)
+ v = (char *)value;
+ else {
+ v = jsonp_strndup(value, len);
+ if(!v)
+ return NULL;
+ }
+
+ string = jsonp_malloc(sizeof(json_string_t));
+ if(!string) {
+ if(!own)
+ jsonp_free(v);
+ return NULL;
+ }
+ json_init(&string->json, JSON_STRING);
+ string->value = v;
+ string->length = len;
+
+ return &string->json;
+}
+
+json_t *json_string_nocheck(const char *value)
+{
+ if(!value)
+ return NULL;
+
+ return string_create(value, strlen(value), 0);
+}
+
+json_t *json_stringn_nocheck(const char *value, size_t len)
+{
+ return string_create(value, len, 0);
+}
+
+/* this is private; "steal" is not a public API concept */
+json_t *jsonp_stringn_nocheck_own(const char *value, size_t len)
+{
+ return string_create(value, len, 1);
+}
+
+json_t *json_string(const char *value)
+{
+ if(!value)
+ return NULL;
+
+ return json_stringn(value, strlen(value));
+}
+
+json_t *json_stringn(const char *value, size_t len)
+{
+ if(!value || !utf8_check_string(value, len))
+ return NULL;
+
+ return json_stringn_nocheck(value, len);
+}
+
+const char *json_string_value(const json_t *json)
+{
+ if(!json_is_string(json))
+ return NULL;
+
+ return json_to_string(json)->value;
+}
+
+size_t json_string_length(const json_t *json)
+{
+ if(!json_is_string(json))
+ return 0;
+
+ return json_to_string(json)->length;
+}
+
+int json_string_set_nocheck(json_t *json, const char *value)
+{
+ if(!value)
+ return -1;
+
+ return json_string_setn_nocheck(json, value, strlen(value));
+}
+
+int json_string_setn_nocheck(json_t *json, const char *value, size_t len)
+{
+ char *dup;
+ json_string_t *string;
+
+ if(!json_is_string(json) || !value)
+ return -1;
+
+ dup = jsonp_strndup(value, len);
+ if(!dup)
+ return -1;
+
+ string = json_to_string(json);
+ jsonp_free(string->value);
+ string->value = dup;
+ string->length = len;
+
+ return 0;
+}
+
+int json_string_set(json_t *json, const char *value)
+{
+ if(!value)
+ return -1;
+
+ return json_string_setn(json, value, strlen(value));
+}
+
+int json_string_setn(json_t *json, const char *value, size_t len)
+{
+ if(!value || !utf8_check_string(value, len))
+ return -1;
+
+ return json_string_setn_nocheck(json, value, len);
+}
+
+static void json_delete_string(json_string_t *string)
+{
+ jsonp_free(string->value);
+ jsonp_free(string);
+}
+
+static int json_string_equal(const json_t *string1, const json_t *string2)
+{
+ json_string_t *s1, *s2;
+
+ if(!json_is_string(string1) || !json_is_string(string2))
+ return 0;
+
+ s1 = json_to_string(string1);
+ s2 = json_to_string(string2);
+ return s1->length == s2->length && !memcmp(s1->value, s2->value, s1->length);
+}
+
+static json_t *json_string_copy(const json_t *string)
+{
+ json_string_t *s;
+
+ if(!json_is_string(string))
+ return NULL;
+
+ s = json_to_string(string);
+ return json_stringn_nocheck(s->value, s->length);
+}
+
+json_t *json_vsprintf(const char *fmt, va_list ap) {
+ int length;
+ char *buf;
+ va_list aq;
+ va_copy(aq, ap);
+
+ length = vsnprintf(NULL, 0, fmt, ap);
+ if (length == 0)
+ return json_string("");
+
+ buf = jsonp_malloc(length + 1);
+ if (!buf)
+ return NULL;
+
+ vsnprintf(buf, length + 1, fmt, aq);
+ if (!utf8_check_string(buf, length)) {
+ jsonp_free(buf);
+ return NULL;
+ }
+
+ return jsonp_stringn_nocheck_own(buf, length);
+}
+
+json_t *json_sprintf(const char *fmt, ...) {
+ json_t *result;
+ va_list ap;
+
+ va_start(ap, fmt);
+ result = json_vsprintf(fmt, ap);
+ va_end(ap);
+
+ return result;
+}
+
+
+/*** integer ***/
+
+json_t *json_integer(json_int_t value)
+{
+ json_integer_t *integer = jsonp_malloc(sizeof(json_integer_t));
+ if(!integer)
+ return NULL;
+ json_init(&integer->json, JSON_INTEGER);
+
+ integer->value = value;
+ return &integer->json;
+}
+
+json_int_t json_integer_value(const json_t *json)
+{
+ if(!json_is_integer(json))
+ return 0;
+
+ return json_to_integer(json)->value;
+}
+
+int json_integer_set(json_t *json, json_int_t value)
+{
+ if(!json_is_integer(json))
+ return -1;
+
+ json_to_integer(json)->value = value;
+
+ return 0;
+}
+
+static void json_delete_integer(json_integer_t *integer)
+{
+ jsonp_free(integer);
+}
+
+static int json_integer_equal(const json_t *integer1, const json_t *integer2)
+{
+ return json_integer_value(integer1) == json_integer_value(integer2);
+}
+
+static json_t *json_integer_copy(const json_t *integer)
+{
+ return json_integer(json_integer_value(integer));
+}
+
+
+/*** real ***/
+
+json_t *json_real(double value)
+{
+ json_real_t *real;
+
+ if(isnan(value) || isinf(value))
+ return NULL;
+
+ real = jsonp_malloc(sizeof(json_real_t));
+ if(!real)
+ return NULL;
+ json_init(&real->json, JSON_REAL);
+
+ real->value = value;
+ return &real->json;
+}
+
+double json_real_value(const json_t *json)
+{
+ if(!json_is_real(json))
+ return 0;
+
+ return json_to_real(json)->value;
+}
+
+int json_real_set(json_t *json, double value)
+{
+ if(!json_is_real(json) || isnan(value) || isinf(value))
+ return -1;
+
+ json_to_real(json)->value = value;
+
+ return 0;
+}
+
+static void json_delete_real(json_real_t *real)
+{
+ jsonp_free(real);
+}
+
+static int json_real_equal(const json_t *real1, const json_t *real2)
+{
+ return json_real_value(real1) == json_real_value(real2);
+}
+
+static json_t *json_real_copy(const json_t *real)
+{
+ return json_real(json_real_value(real));
+}
+
+
+/*** number ***/
+
+double json_number_value(const json_t *json)
+{
+ if(json_is_integer(json))
+ return (double)json_integer_value(json);
+ else if(json_is_real(json))
+ return json_real_value(json);
+ else
+ return 0.0;
+}
+
+
+/*** simple values ***/
+
+json_t *json_true(void)
+{
+ static json_t the_true = {JSON_TRUE, (size_t)-1};
+ return &the_true;
+}
+
+
+json_t *json_false(void)
+{
+ static json_t the_false = {JSON_FALSE, (size_t)-1};
+ return &the_false;
+}
+
+
+json_t *json_null(void)
+{
+ static json_t the_null = {JSON_NULL, (size_t)-1};
+ return &the_null;
+}
+
+
+/*** deletion ***/
+
+void json_delete(json_t *json)
+{
+ if (!json)
+ return;
+
+ switch(json_typeof(json)) {
+ case JSON_OBJECT:
+ json_delete_object(json_to_object(json));
+ break;
+ case JSON_ARRAY:
+ json_delete_array(json_to_array(json));
+ break;
+ case JSON_STRING:
+ json_delete_string(json_to_string(json));
+ break;
+ case JSON_INTEGER:
+ json_delete_integer(json_to_integer(json));
+ break;
+ case JSON_REAL:
+ json_delete_real(json_to_real(json));
+ break;
+ default:
+ return;
+ }
+
+ /* json_delete is not called for true, false or null */
+}
+
+
+/*** equality ***/
+
+int json_equal(const json_t *json1, const json_t *json2)
+{
+ if(!json1 || !json2)
+ return 0;
+
+ if(json_typeof(json1) != json_typeof(json2))
+ return 0;
+
+ /* this covers true, false and null as they are singletons */
+ if(json1 == json2)
+ return 1;
+
+ switch(json_typeof(json1)) {
+ case JSON_OBJECT:
+ return json_object_equal(json1, json2);
+ case JSON_ARRAY:
+ return json_array_equal(json1, json2);
+ case JSON_STRING:
+ return json_string_equal(json1, json2);
+ case JSON_INTEGER:
+ return json_integer_equal(json1, json2);
+ case JSON_REAL:
+ return json_real_equal(json1, json2);
+ default:
+ return 0;
+ }
+}
+
+
+/*** copying ***/
+
+json_t *json_copy(json_t *json)
+{
+ if(!json)
+ return NULL;
+
+ switch(json_typeof(json)) {
+ case JSON_OBJECT:
+ return json_object_copy(json);
+ case JSON_ARRAY:
+ return json_array_copy(json);
+ case JSON_STRING:
+ return json_string_copy(json);
+ case JSON_INTEGER:
+ return json_integer_copy(json);
+ case JSON_REAL:
+ return json_real_copy(json);
+ case JSON_TRUE:
+ case JSON_FALSE:
+ case JSON_NULL:
+ return json;
+ default:
+ return NULL;
+ }
+
+ return NULL;
+}
+
+json_t *json_deep_copy(const json_t *json)
+{
+ if(!json)
+ return NULL;
+
+ switch(json_typeof(json)) {
+ case JSON_OBJECT:
+ return json_object_deep_copy(json);
+ case JSON_ARRAY:
+ return json_array_deep_copy(json);
+ /* for the rest of the types, deep copying doesn't differ from
+ shallow copying */
+ case JSON_STRING:
+ return json_string_copy(json);
+ case JSON_INTEGER:
+ return json_integer_copy(json);
+ case JSON_REAL:
+ return json_real_copy(json);
+ case JSON_TRUE:
+ case JSON_FALSE:
+ case JSON_NULL:
+ return (json_t *)json;
+ default:
+ return NULL;
+ }
+
+ return NULL;
+}
projects / proxmark3-svn / blobdiff