Adding upstream version 1.44.3.upstream/1.44.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2834 insertions, 0 deletions

diff --git a/fluent-bit/lib/librdkafka-2.1.0/src/cJSON.c b/fluent-bit/lib/librdkafka-2.1.0/src/cJSON.c
new file mode 100644
index 00000000..9aec1846
--- /dev/null
+++ b/fluent-bit/lib/librdkafka-2.1.0/src/cJSON.c
@@ -0,0 +1,2834 @@
+/*
+  Copyright (c) 2009-2017 Dave Gamble and cJSON contributors
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+*/
+
+/* cJSON */
+/* JSON parser in C. */
+
+/* disable warnings about old C89 functions in MSVC */
+#if !defined(_CRT_SECURE_NO_DEPRECATE) && defined(_MSC_VER)
+#define _CRT_SECURE_NO_DEPRECATE
+#endif
+
+#ifdef __GNUC__
+#pragma GCC visibility push(default)
+#endif
+#if defined(_MSC_VER)
+#pragma warning(push)
+/* disable warning about single line comments in system headers */
+#pragma warning(disable : 4001)
+#endif
+
+#include <string.h>
+#include <stdio.h>
+#include <math.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <ctype.h>
+#include <float.h>
+
+#ifdef ENABLE_LOCALES
+#include <locale.h>
+#endif
+
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
+#ifdef __GNUC__
+#pragma GCC visibility pop
+#endif
+
+#include "cJSON.h"
+
+/* define our own boolean type */
+#ifdef true
+#undef true
+#endif
+#define true ((cJSON_bool)1)
+
+#ifdef false
+#undef false
+#endif
+#define false ((cJSON_bool)0)
+
+/* define isnan and isinf for ANSI C, if in C99 or above, isnan and isinf has
+ * been defined in math.h */
+#ifndef isinf
+#define isinf(d) (isnan((d - d)) && !isnan(d))
+#endif
+#ifndef isnan
+#define isnan(d) (d != d)
+#endif
+
+#ifndef NAN
+#define NAN 0.0 / 0.0
+#endif
+
+typedef struct {
+        const unsigned char *json;
+        size_t position;
+} error;
+static error global_error = {NULL, 0};
+
+CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void) {
+        return (const char *)(global_error.json + global_error.position);
+}
+
+CJSON_PUBLIC(char *) cJSON_GetStringValue(const cJSON *const item) {
+        if (!cJSON_IsString(item)) {
+                return NULL;
+        }
+
+        return item->valuestring;
+}
+
+CJSON_PUBLIC(double) cJSON_GetNumberValue(const cJSON *const item) {
+        if (!cJSON_IsNumber(item)) {
+                return (double)NAN;
+        }
+
+        return item->valuedouble;
+}
+
+/* This is a safeguard to prevent copy-pasters from using incompatible C and
+ * header files */
+#if (CJSON_VERSION_MAJOR != 1) || (CJSON_VERSION_MINOR != 7) ||                \
+    (CJSON_VERSION_PATCH != 14)
+#error cJSON.h and cJSON.c have different versions. Make sure that both have the same.
+#endif
+
+CJSON_PUBLIC(const char *) cJSON_Version(void) {
+        static char version[15];
+        sprintf(version, "%i.%i.%i", CJSON_VERSION_MAJOR, CJSON_VERSION_MINOR,
+                CJSON_VERSION_PATCH);
+
+        return version;
+}
+
+/* Case insensitive string comparison, doesn't consider two NULL pointers equal
+ * though */
+static int case_insensitive_strcmp(const unsigned char *string1,
+                                   const unsigned char *string2) {
+        if ((string1 == NULL) || (string2 == NULL)) {
+                return 1;
+        }
+
+        if (string1 == string2) {
+                return 0;
+        }
+
+        for (; tolower(*string1) == tolower(*string2);
+             (void)string1++, string2++) {
+                if (*string1 == '\0') {
+                        return 0;
+                }
+        }
+
+        return tolower(*string1) - tolower(*string2);
+}
+
+typedef struct internal_hooks {
+        void *(CJSON_CDECL *allocate)(size_t size);
+        void(CJSON_CDECL *deallocate)(void *pointer);
+        void *(CJSON_CDECL *reallocate)(void *pointer, size_t size);
+} internal_hooks;
+
+#if defined(_MSC_VER)
+/* work around MSVC error C2322: '...' address of dllimport '...' is not static
+ */
+static void *CJSON_CDECL internal_malloc(size_t size) {
+        return malloc(size);
+}
+static void CJSON_CDECL internal_free(void *pointer) {
+        free(pointer);
+}
+static void *CJSON_CDECL internal_realloc(void *pointer, size_t size) {
+        return realloc(pointer, size);
+}
+#else
+#define internal_malloc  malloc
+#define internal_free    free
+#define internal_realloc realloc
+#endif
+
+/* strlen of character literals resolved at compile time */
+#define static_strlen(string_literal) (sizeof(string_literal) - sizeof(""))
+
+static internal_hooks global_hooks = {internal_malloc, internal_free,
+                                      internal_realloc};
+
+static unsigned char *cJSON_strdup(const unsigned char *string,
+                                   const internal_hooks *const hooks) {
+        size_t length       = 0;
+        unsigned char *copy = NULL;
+
+        if (string == NULL) {
+                return NULL;
+        }
+
+        length = strlen((const char *)string) + sizeof("");
+        copy   = (unsigned char *)hooks->allocate(length);
+        if (copy == NULL) {
+                return NULL;
+        }
+        memcpy(copy, string, length);
+
+        return copy;
+}
+
+CJSON_PUBLIC(void) cJSON_InitHooks(cJSON_Hooks *hooks) {
+        if (hooks == NULL) {
+                /* Reset hooks */
+                global_hooks.allocate   = malloc;
+                global_hooks.deallocate = free;
+                global_hooks.reallocate = realloc;
+                return;
+        }
+
+        global_hooks.allocate = malloc;
+        if (hooks->malloc_fn != NULL) {
+                global_hooks.allocate = hooks->malloc_fn;
+        }
+
+        global_hooks.deallocate = free;
+        if (hooks->free_fn != NULL) {
+                global_hooks.deallocate = hooks->free_fn;
+        }
+
+        /* use realloc only if both free and malloc are used */
+        global_hooks.reallocate = NULL;
+        if ((global_hooks.allocate == malloc) &&
+            (global_hooks.deallocate == free)) {
+                global_hooks.reallocate = realloc;
+        }
+}
+
+/* Internal constructor. */
+static cJSON *cJSON_New_Item(const internal_hooks *const hooks) {
+        cJSON *node = (cJSON *)hooks->allocate(sizeof(cJSON));
+        if (node) {
+                memset(node, '\0', sizeof(cJSON));
+        }
+
+        return node;
+}
+
+/* Delete a cJSON structure. */
+CJSON_PUBLIC(void) cJSON_Delete(cJSON *item) {
+        cJSON *next = NULL;
+        while (item != NULL) {
+                next = item->next;
+                if (!(item->type & cJSON_IsReference) &&
+                    (item->child != NULL)) {
+                        cJSON_Delete(item->child);
+                }
+                if (!(item->type & cJSON_IsReference) &&
+                    (item->valuestring != NULL)) {
+                        global_hooks.deallocate(item->valuestring);
+                }
+                if (!(item->type & cJSON_StringIsConst) &&
+                    (item->string != NULL)) {
+                        global_hooks.deallocate(item->string);
+                }
+                global_hooks.deallocate(item);
+                item = next;
+        }
+}
+
+/* get the decimal point character of the current locale */
+static unsigned char get_decimal_point(void) {
+#ifdef ENABLE_LOCALES
+        struct lconv *lconv = localeconv();
+        return (unsigned char)lconv->decimal_point[0];
+#else
+        return '.';
+#endif
+}
+
+typedef struct {
+        const unsigned char *content;
+        size_t length;
+        size_t offset;
+        size_t depth; /* How deeply nested (in arrays/objects) is the input at
+                         the current offset. */
+        internal_hooks hooks;
+} parse_buffer;
+
+/* check if the given size is left to read in a given parse buffer (starting
+ * with 1) */
+#define can_read(buffer, size)                                                 \
+        ((buffer != NULL) && (((buffer)->offset + size) <= (buffer)->length))
+/* check if the buffer can be accessed at the given index (starting with 0) */
+#define can_access_at_index(buffer, index)                                     \
+        ((buffer != NULL) && (((buffer)->offset + index) < (buffer)->length))
+#define cannot_access_at_index(buffer, index)                                  \
+        (!can_access_at_index(buffer, index))
+/* get a pointer to the buffer at the position */
+#define buffer_at_offset(buffer) ((buffer)->content + (buffer)->offset)
+
+/* Parse the input text to generate a number, and populate the result into item.
+ */
+static cJSON_bool parse_number(cJSON *const item,
+                               parse_buffer *const input_buffer) {
+        double number            = 0;
+        unsigned char *after_end = NULL;
+        unsigned char number_c_string[64];
+        unsigned char decimal_point = get_decimal_point();
+        size_t i                    = 0;
+
+        if ((input_buffer == NULL) || (input_buffer->content == NULL)) {
+                return false;
+        }
+
+        /* copy the number into a temporary buffer and replace '.' with the
+         * decimal point of the current locale (for strtod)
+         * This also takes care of '\0' not necessarily being available for
+         * marking the end of the input */
+        for (i = 0; (i < (sizeof(number_c_string) - 1)) &&
+                    can_access_at_index(input_buffer, i);
+             i++) {
+                switch (buffer_at_offset(input_buffer)[i]) {
+                case '0':
+                case '1':
+                case '2':
+                case '3':
+                case '4':
+                case '5':
+                case '6':
+                case '7':
+                case '8':
+                case '9':
+                case '+':
+                case '-':
+                case 'e':
+                case 'E':
+                        number_c_string[i] = buffer_at_offset(input_buffer)[i];
+                        break;
+
+                case '.':
+                        number_c_string[i] = decimal_point;
+                        break;
+
+                default:
+                        goto loop_end;
+                }
+        }
+loop_end:
+        number_c_string[i] = '\0';
+
+        number = strtod((const char *)number_c_string, (char **)&after_end);
+        if (number_c_string == after_end) {
+                return false; /* parse_error */
+        }
+
+        item->valuedouble = number;
+
+        /* use saturation in case of overflow */
+        if (number >= INT_MAX) {
+                item->valueint = INT_MAX;
+        } else if (number <= (double)INT_MIN) {
+                item->valueint = INT_MIN;
+        } else {
+                item->valueint = (int)number;
+        }
+
+        item->type = cJSON_Number;
+
+        input_buffer->offset += (size_t)(after_end - number_c_string);
+        return true;
+}
+
+/* don't ask me, but the original cJSON_SetNumberValue returns an integer or
+ * double */
+CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number) {
+        if (number >= INT_MAX) {
+                object->valueint = INT_MAX;
+        } else if (number <= (double)INT_MIN) {
+                object->valueint = INT_MIN;
+        } else {
+                object->valueint = (int)number;
+        }
+
+        return object->valuedouble = number;
+}
+
+CJSON_PUBLIC(char *)
+cJSON_SetValuestring(cJSON *object, const char *valuestring) {
+        char *copy = NULL;
+        /* if object's type is not cJSON_String or is cJSON_IsReference, it
+         * should not set valuestring */
+        if (!(object->type & cJSON_String) ||
+            (object->type & cJSON_IsReference)) {
+                return NULL;
+        }
+        if (strlen(valuestring) <= strlen(object->valuestring)) {
+                strcpy(object->valuestring, valuestring);
+                return object->valuestring;
+        }
+        copy = (char *)cJSON_strdup((const unsigned char *)valuestring,
+                                    &global_hooks);
+        if (copy == NULL) {
+                return NULL;
+        }
+        if (object->valuestring != NULL) {
+                cJSON_free(object->valuestring);
+        }
+        object->valuestring = copy;
+
+        return copy;
+}
+
+typedef struct {
+        unsigned char *buffer;
+        size_t length;
+        size_t offset;
+        size_t depth; /* current nesting depth (for formatted printing) */
+        cJSON_bool noalloc;
+        cJSON_bool format; /* is this print a formatted print */
+        internal_hooks hooks;
+} printbuffer;
+
+/* realloc printbuffer if necessary to have at least "needed" bytes more */
+static unsigned char *ensure(printbuffer *const p, size_t needed) {
+        unsigned char *newbuffer = NULL;
+        size_t newsize           = 0;
+
+        if ((p == NULL) || (p->buffer == NULL)) {
+                return NULL;
+        }
+
+        if ((p->length > 0) && (p->offset >= p->length)) {
+                /* make sure that offset is valid */
+                return NULL;
+        }
+
+        if (needed > INT_MAX) {
+                /* sizes bigger than INT_MAX are currently not supported */
+                return NULL;
+        }
+
+        needed += p->offset + 1;
+        if (needed <= p->length) {
+                return p->buffer + p->offset;
+        }
+
+        if (p->noalloc) {
+                return NULL;
+        }
+
+        /* calculate new buffer size */
+        if (needed > (INT_MAX / 2)) {
+                /* overflow of int, use INT_MAX if possible */
+                if (needed <= INT_MAX) {
+                        newsize = INT_MAX;
+                } else {
+                        return NULL;
+                }
+        } else {
+                newsize = needed * 2;
+        }
+
+        if (p->hooks.reallocate != NULL) {
+                /* reallocate with realloc if available */
+                newbuffer =
+                    (unsigned char *)p->hooks.reallocate(p->buffer, newsize);
+                if (newbuffer == NULL) {
+                        p->hooks.deallocate(p->buffer);
+                        p->length = 0;
+                        p->buffer = NULL;
+
+                        return NULL;
+                }
+        } else {
+                /* otherwise reallocate manually */
+                newbuffer = (unsigned char *)p->hooks.allocate(newsize);
+                if (!newbuffer) {
+                        p->hooks.deallocate(p->buffer);
+                        p->length = 0;
+                        p->buffer = NULL;
+
+                        return NULL;
+                }
+                if (newbuffer) {
+                        memcpy(newbuffer, p->buffer, p->offset + 1);
+                }
+                p->hooks.deallocate(p->buffer);
+        }
+        p->length = newsize;
+        p->buffer = newbuffer;
+
+        return newbuffer + p->offset;
+}
+
+/* calculate the new length of the string in a printbuffer and update the offset
+ */
+static void update_offset(printbuffer *const buffer) {
+        const unsigned char *buffer_pointer = NULL;
+        if ((buffer == NULL) || (buffer->buffer == NULL)) {
+                return;
+        }
+        buffer_pointer = buffer->buffer + buffer->offset;
+
+        buffer->offset += strlen((const char *)buffer_pointer);
+}
+
+/* securely comparison of floating-point variables */
+static cJSON_bool compare_double(double a, double b) {
+        double maxVal = fabs(a) > fabs(b) ? fabs(a) : fabs(b);
+        return (fabs(a - b) <= maxVal * DBL_EPSILON);
+}
+
+/* Render the number nicely from the given item into a string. */
+static cJSON_bool print_number(const cJSON *const item,
+                               printbuffer *const output_buffer) {
+        unsigned char *output_pointer   = NULL;
+        double d                        = item->valuedouble;
+        int length                      = 0;
+        size_t i                        = 0;
+        unsigned char number_buffer[26] = {
+            0}; /* temporary buffer to print the number into */
+        unsigned char decimal_point = get_decimal_point();
+        double test                 = 0.0;
+
+        if (output_buffer == NULL) {
+                return false;
+        }
+
+        /* This checks for NaN and Infinity */
+        if (isnan(d) || isinf(d)) {
+                length = sprintf((char *)number_buffer, "null");
+        } else {
+                /* Try 15 decimal places of precision to avoid nonsignificant
+                 * nonzero digits */
+                length = sprintf((char *)number_buffer, "%1.15g", d);
+
+                /* Check whether the original double can be recovered */
+                if ((sscanf((char *)number_buffer, "%lg", &test) != 1) ||
+                    !compare_double((double)test, d)) {
+                        /* If not, print with 17 decimal places of precision */
+                        length = sprintf((char *)number_buffer, "%1.17g", d);
+                }
+        }
+
+        /* sprintf failed or buffer overrun occurred */
+        if ((length < 0) || (length > (int)(sizeof(number_buffer) - 1))) {
+                return false;
+        }
+
+        /* reserve appropriate space in the output */
+        output_pointer = ensure(output_buffer, (size_t)length + sizeof(""));
+        if (output_pointer == NULL) {
+                return false;
+        }
+
+        /* copy the printed number to the output and replace locale
+         * dependent decimal point with '.' */
+        for (i = 0; i < ((size_t)length); i++) {
+                if (number_buffer[i] == decimal_point) {
+                        output_pointer[i] = '.';
+                        continue;
+                }
+
+                output_pointer[i] = number_buffer[i];
+        }
+        output_pointer[i] = '\0';
+
+        output_buffer->offset += (size_t)length;
+
+        return true;
+}
+
+/* parse 4 digit hexadecimal number */
+static unsigned parse_hex4(const unsigned char *const input) {
+        unsigned int h = 0;
+        size_t i       = 0;
+
+        for (i = 0; i < 4; i++) {
+                /* parse digit */
+                if ((input[i] >= '0') && (input[i] <= '9')) {
+                        h += (unsigned int)input[i] - '0';
+                } else if ((input[i] >= 'A') && (input[i] <= 'F')) {
+                        h += (unsigned int)10 + input[i] - 'A';
+                } else if ((input[i] >= 'a') && (input[i] <= 'f')) {
+                        h += (unsigned int)10 + input[i] - 'a';
+                } else /* invalid */
+                {
+                        return 0;
+                }
+
+                if (i < 3) {
+                        /* shift left to make place for the next nibble */
+                        h = h << 4;
+                }
+        }
+
+        return h;
+}
+
+/* converts a UTF-16 literal to UTF-8
+ * A literal can be one or two sequences of the form \uXXXX */
+static unsigned char
+utf16_literal_to_utf8(const unsigned char *const input_pointer,
+                      const unsigned char *const input_end,
+                      unsigned char **output_pointer) {
+        long unsigned int codepoint         = 0;
+        unsigned int first_code             = 0;
+        const unsigned char *first_sequence = input_pointer;
+        unsigned char utf8_length           = 0;
+        unsigned char utf8_position         = 0;
+        unsigned char sequence_length       = 0;
+        unsigned char first_byte_mark       = 0;
+
+        if ((input_end - first_sequence) < 6) {
+                /* input ends unexpectedly */
+                goto fail;
+        }
+
+        /* get the first utf16 sequence */
+        first_code = parse_hex4(first_sequence + 2);
+
+        /* check that the code is valid */
+        if (((first_code >= 0xDC00) && (first_code <= 0xDFFF))) {
+                goto fail;
+        }
+
+        /* UTF16 surrogate pair */
+        if ((first_code >= 0xD800) && (first_code <= 0xDBFF)) {
+                const unsigned char *second_sequence = first_sequence + 6;
+                unsigned int second_code             = 0;
+                sequence_length                      = 12; /* \uXXXX\uXXXX */
+
+                if ((input_end - second_sequence) < 6) {
+                        /* input ends unexpectedly */
+                        goto fail;
+                }
+
+                if ((second_sequence[0] != '\\') ||
+                    (second_sequence[1] != 'u')) {
+                        /* missing second half of the surrogate pair */
+                        goto fail;
+                }
+
+                /* get the second utf16 sequence */
+                second_code = parse_hex4(second_sequence + 2);
+                /* check that the code is valid */
+                if ((second_code < 0xDC00) || (second_code > 0xDFFF)) {
+                        /* invalid second half of the surrogate pair */
+                        goto fail;
+                }
+
+
+                /* calculate the unicode codepoint from the surrogate pair */
+                codepoint = 0x10000 + (((first_code & 0x3FF) << 10) |
+                                       (second_code & 0x3FF));
+        } else {
+                sequence_length = 6; /* \uXXXX */
+                codepoint       = first_code;
+        }
+
+        /* encode as UTF-8
+         * takes at maximum 4 bytes to encode:
+         * 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
+        if (codepoint < 0x80) {
+                /* normal ascii, encoding 0xxxxxxx */
+                utf8_length = 1;
+        } else if (codepoint < 0x800) {
+                /* two bytes, encoding 110xxxxx 10xxxxxx */
+                utf8_length     = 2;
+                first_byte_mark = 0xC0; /* 11000000 */
+        } else if (codepoint < 0x10000) {
+                /* three bytes, encoding 1110xxxx 10xxxxxx 10xxxxxx */
+                utf8_length     = 3;
+                first_byte_mark = 0xE0; /* 11100000 */
+        } else if (codepoint <= 0x10FFFF) {
+                /* four bytes, encoding 1110xxxx 10xxxxxx 10xxxxxx 10xxxxxx */
+                utf8_length     = 4;
+                first_byte_mark = 0xF0; /* 11110000 */
+        } else {
+                /* invalid unicode codepoint */
+                goto fail;
+        }
+
+        /* encode as utf8 */
+        for (utf8_position = (unsigned char)(utf8_length - 1);
+             utf8_position > 0; utf8_position--) {
+                /* 10xxxxxx */
+                (*output_pointer)[utf8_position] =
+                    (unsigned char)((codepoint | 0x80) & 0xBF);
+                codepoint >>= 6;
+        }
+        /* encode first byte */
+        if (utf8_length > 1) {
+                (*output_pointer)[0] =
+                    (unsigned char)((codepoint | first_byte_mark) & 0xFF);
+        } else {
+                (*output_pointer)[0] = (unsigned char)(codepoint & 0x7F);
+        }
+
+        *output_pointer += utf8_length;
+
+        return sequence_length;
+
+fail:
+        return 0;
+}
+
+/* Parse the input text into an unescaped cinput, and populate item. */
+static cJSON_bool parse_string(cJSON *const item,
+                               parse_buffer *const input_buffer) {
+        const unsigned char *input_pointer = buffer_at_offset(input_buffer) + 1;
+        const unsigned char *input_end     = buffer_at_offset(input_buffer) + 1;
+        unsigned char *output_pointer      = NULL;
+        unsigned char *output              = NULL;
+
+        /* not a string */
+        if (buffer_at_offset(input_buffer)[0] != '\"') {
+                goto fail;
+        }
+
+        {
+                /* calculate approximate size of the output (overestimate) */
+                size_t allocation_length = 0;
+                size_t skipped_bytes     = 0;
+                while (((size_t)(input_end - input_buffer->content) <
+                        input_buffer->length) &&
+                       (*input_end != '\"')) {
+                        /* is escape sequence */
+                        if (input_end[0] == '\\') {
+                                if ((size_t)(input_end + 1 -
+                                             input_buffer->content) >=
+                                    input_buffer->length) {
+                                        /* prevent buffer overflow when last
+                                         * input character is a backslash */
+                                        goto fail;
+                                }
+                                skipped_bytes++;
+                                input_end++;
+                        }
+                        input_end++;
+                }
+                if (((size_t)(input_end - input_buffer->content) >=
+                     input_buffer->length) ||
+                    (*input_end != '\"')) {
+                        goto fail; /* string ended unexpectedly */
+                }
+
+                /* This is at most how much we need for the output */
+                allocation_length =
+                    (size_t)(input_end - buffer_at_offset(input_buffer)) -
+                    skipped_bytes;
+                output = (unsigned char *)input_buffer->hooks.allocate(
+                    allocation_length + sizeof(""));
+                if (output == NULL) {
+                        goto fail; /* allocation failure */
+                }
+        }
+
+        output_pointer = output;
+        /* loop through the string literal */
+        while (input_pointer < input_end) {
+                if (*input_pointer != '\\') {
+                        *output_pointer++ = *input_pointer++;
+                }
+                /* escape sequence */
+                else {
+                        unsigned char sequence_length = 2;
+                        if ((input_end - input_pointer) < 1) {
+                                goto fail;
+                        }
+
+                        switch (input_pointer[1]) {
+                        case 'b':
+                                *output_pointer++ = '\b';
+                                break;
+                        case 'f':
+                                *output_pointer++ = '\f';
+                                break;
+                        case 'n':
+                                *output_pointer++ = '\n';
+                                break;
+                        case 'r':
+                                *output_pointer++ = '\r';
+                                break;
+                        case 't':
+                                *output_pointer++ = '\t';
+                                break;
+                        case '\"':
+                        case '\\':
+                        case '/':
+                                *output_pointer++ = input_pointer[1];
+                                break;
+
+                        /* UTF-16 literal */
+                        case 'u':
+                                sequence_length = utf16_literal_to_utf8(
+                                    input_pointer, input_end, &output_pointer);
+                                if (sequence_length == 0) {
+                                        /* failed to convert UTF16-literal to
+                                         * UTF-8 */
+                                        goto fail;
+                                }
+                                break;
+
+                        default:
+                                goto fail;
+                        }
+                        input_pointer += sequence_length;
+                }
+        }
+
+        /* zero terminate the output */
+        *output_pointer = '\0';
+
+        item->type        = cJSON_String;
+        item->valuestring = (char *)output;
+
+        input_buffer->offset = (size_t)(input_end - input_buffer->content);
+        input_buffer->offset++;
+
+        return true;
+
+fail:
+        if (output != NULL) {
+                input_buffer->hooks.deallocate(output);
+        }
+
+        if (input_pointer != NULL) {
+                input_buffer->offset =
+                    (size_t)(input_pointer - input_buffer->content);
+        }
+
+        return false;
+}
+
+/* Render the cstring provided to an escaped version that can be printed. */
+static cJSON_bool print_string_ptr(const unsigned char *const input,
+                                   printbuffer *const output_buffer) {
+        const unsigned char *input_pointer = NULL;
+        unsigned char *output              = NULL;
+        unsigned char *output_pointer      = NULL;
+        size_t output_length               = 0;
+        /* numbers of additional characters needed for escaping */
+        size_t escape_characters = 0;
+
+        if (output_buffer == NULL) {
+                return false;
+        }
+
+        /* empty string */
+        if (input == NULL) {
+                output = ensure(output_buffer, sizeof("\"\""));
+                if (output == NULL) {
+                        return false;
+                }
+                strcpy((char *)output, "\"\"");
+
+                return true;
+        }
+
+        /* set "flag" to 1 if something needs to be escaped */
+        for (input_pointer = input; *input_pointer; input_pointer++) {
+                switch (*input_pointer) {
+                case '\"':
+                case '\\':
+                case '\b':
+                case '\f':
+                case '\n':
+                case '\r':
+                case '\t':
+                        /* one character escape sequence */
+                        escape_characters++;
+                        break;
+                default:
+                        if (*input_pointer < 32) {
+                                /* UTF-16 escape sequence uXXXX */
+                                escape_characters += 5;
+                        }
+                        break;
+                }
+        }
+        output_length = (size_t)(input_pointer - input) + escape_characters;
+
+        output = ensure(output_buffer, output_length + sizeof("\"\""));
+        if (output == NULL) {
+                return false;
+        }
+
+        /* no characters have to be escaped */
+        if (escape_characters == 0) {
+                output[0] = '\"';
+                memcpy(output + 1, input, output_length);
+                output[output_length + 1] = '\"';
+                output[output_length + 2] = '\0';
+
+                return true;
+        }
+
+        output[0]      = '\"';
+        output_pointer = output + 1;
+        /* copy the string */
+        for (input_pointer = input; *input_pointer != '\0';
+             (void)input_pointer++, output_pointer++) {
+                if ((*input_pointer > 31) && (*input_pointer != '\"') &&
+                    (*input_pointer != '\\')) {
+                        /* normal character, copy */
+                        *output_pointer = *input_pointer;
+                } else {
+                        /* character needs to be escaped */
+                        *output_pointer++ = '\\';
+                        switch (*input_pointer) {
+                        case '\\':
+                                *output_pointer = '\\';
+                                break;
+                        case '\"':
+                                *output_pointer = '\"';
+                                break;
+                        case '\b':
+                                *output_pointer = 'b';
+                                break;
+                        case '\f':
+                                *output_pointer = 'f';
+                                break;
+                        case '\n':
+                                *output_pointer = 'n';
+                                break;
+                        case '\r':
+                                *output_pointer = 'r';
+                                break;
+                        case '\t':
+                                *output_pointer = 't';
+                                break;
+                        default:
+                                /* escape and print as unicode codepoint */
+                                sprintf((char *)output_pointer, "u%04x",
+                                        *input_pointer);
+                                output_pointer += 4;
+                                break;
+                        }
+                }
+        }
+        output[output_length + 1] = '\"';
+        output[output_length + 2] = '\0';
+
+        return true;
+}
+
+/* Invoke print_string_ptr (which is useful) on an item. */
+static cJSON_bool print_string(const cJSON *const item, printbuffer *const p) {
+        return print_string_ptr((unsigned char *)item->valuestring, p);
+}
+
+/* Predeclare these prototypes. */
+static cJSON_bool parse_value(cJSON *const item,
+                              parse_buffer *const input_buffer);
+static cJSON_bool print_value(const cJSON *const item,
+                              printbuffer *const output_buffer);
+static cJSON_bool parse_array(cJSON *const item,
+                              parse_buffer *const input_buffer);
+static cJSON_bool print_array(const cJSON *const item,
+                              printbuffer *const output_buffer);
+static cJSON_bool parse_object(cJSON *const item,
+                               parse_buffer *const input_buffer);
+static cJSON_bool print_object(const cJSON *const item,
+                               printbuffer *const output_buffer);
+
+/* Utility to jump whitespace and cr/lf */
+static parse_buffer *buffer_skip_whitespace(parse_buffer *const buffer) {
+        if ((buffer == NULL) || (buffer->content == NULL)) {
+                return NULL;
+        }
+
+        if (cannot_access_at_index(buffer, 0)) {
+                return buffer;
+        }
+
+        while (can_access_at_index(buffer, 0) &&
+               (buffer_at_offset(buffer)[0] <= 32)) {
+                buffer->offset++;
+        }
+
+        if (buffer->offset == buffer->length) {
+                buffer->offset--;
+        }
+
+        return buffer;
+}
+
+/* skip the UTF-8 BOM (byte order mark) if it is at the beginning of a buffer */
+static parse_buffer *skip_utf8_bom(parse_buffer *const buffer) {
+        if ((buffer == NULL) || (buffer->content == NULL) ||
+            (buffer->offset != 0)) {
+                return NULL;
+        }
+
+        if (can_access_at_index(buffer, 4) &&
+            (strncmp((const char *)buffer_at_offset(buffer), "\xEF\xBB\xBF",
+                     3) == 0)) {
+                buffer->offset += 3;
+        }
+
+        return buffer;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_ParseWithOpts(const char *value,
+                    const char **return_parse_end,
+                    cJSON_bool require_null_terminated) {
+        size_t buffer_length;
+
+        if (NULL == value) {
+                return NULL;
+        }
+
+        /* Adding null character size due to require_null_terminated. */
+        buffer_length = strlen(value) + sizeof("");
+
+        return cJSON_ParseWithLengthOpts(value, buffer_length, return_parse_end,
+                                         require_null_terminated);
+}
+
+/* Parse an object - create a new root, and populate. */
+CJSON_PUBLIC(cJSON *)
+cJSON_ParseWithLengthOpts(const char *value,
+                          size_t buffer_length,
+                          const char **return_parse_end,
+                          cJSON_bool require_null_terminated) {
+        parse_buffer buffer = {0, 0, 0, 0, {0, 0, 0}};
+        cJSON *item         = NULL;
+
+        /* reset error position */
+        global_error.json     = NULL;
+        global_error.position = 0;
+
+        if (value == NULL || 0 == buffer_length) {
+                goto fail;
+        }
+
+        buffer.content = (const unsigned char *)value;
+        buffer.length  = buffer_length;
+        buffer.offset  = 0;
+        buffer.hooks   = global_hooks;
+
+        item = cJSON_New_Item(&global_hooks);
+        if (item == NULL) /* memory fail */
+        {
+                goto fail;
+        }
+
+        if (!parse_value(item,
+                         buffer_skip_whitespace(skip_utf8_bom(&buffer)))) {
+                /* parse failure. ep is set. */
+                goto fail;
+        }
+
+        /* if we require null-terminated JSON without appended garbage, skip and
+         * then check for a null terminator */
+        if (require_null_terminated) {
+                buffer_skip_whitespace(&buffer);
+                if ((buffer.offset >= buffer.length) ||
+                    buffer_at_offset(&buffer)[0] != '\0') {
+                        goto fail;
+                }
+        }
+        if (return_parse_end) {
+                *return_parse_end = (const char *)buffer_at_offset(&buffer);
+        }
+
+        return item;
+
+fail:
+        if (item != NULL) {
+                cJSON_Delete(item);
+        }
+
+        if (value != NULL) {
+                error local_error;
+                local_error.json     = (const unsigned char *)value;
+                local_error.position = 0;
+
+                if (buffer.offset < buffer.length) {
+                        local_error.position = buffer.offset;
+                } else if (buffer.length > 0) {
+                        local_error.position = buffer.length - 1;
+                }
+
+                if (return_parse_end != NULL) {
+                        *return_parse_end = (const char *)local_error.json +
+                                            local_error.position;
+                }
+
+                global_error = local_error;
+        }
+
+        return NULL;
+}
+
+/* Default options for cJSON_Parse */
+CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value) {
+        return cJSON_ParseWithOpts(value, 0, 0);
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_ParseWithLength(const char *value, size_t buffer_length) {
+        return cJSON_ParseWithLengthOpts(value, buffer_length, 0, 0);
+}
+
+#define cjson_min(a, b) (((a) < (b)) ? (a) : (b))
+
+static unsigned char *print(const cJSON *const item,
+                            cJSON_bool format,
+                            const internal_hooks *const hooks) {
+        static const size_t default_buffer_size = 256;
+        printbuffer buffer[1];
+        unsigned char *printed = NULL;
+
+        memset(buffer, 0, sizeof(buffer));
+
+        /* create buffer */
+        buffer->buffer = (unsigned char *)hooks->allocate(default_buffer_size);
+        buffer->length = default_buffer_size;
+        buffer->format = format;
+        buffer->hooks  = *hooks;
+        if (buffer->buffer == NULL) {
+                goto fail;
+        }
+
+        /* print the value */
+        if (!print_value(item, buffer)) {
+                goto fail;
+        }
+        update_offset(buffer);
+
+        /* check if reallocate is available */
+        if (hooks->reallocate != NULL) {
+                printed = (unsigned char *)hooks->reallocate(
+                    buffer->buffer, buffer->offset + 1);
+                if (printed == NULL) {
+                        goto fail;
+                }
+                buffer->buffer = NULL;
+        } else /* otherwise copy the JSON over to a new buffer */
+        {
+                printed = (unsigned char *)hooks->allocate(buffer->offset + 1);
+                if (printed == NULL) {
+                        goto fail;
+                }
+                memcpy(printed, buffer->buffer,
+                       cjson_min(buffer->length, buffer->offset + 1));
+                printed[buffer->offset] = '\0'; /* just to be sure */
+
+                /* free the buffer */
+                hooks->deallocate(buffer->buffer);
+        }
+
+        return printed;
+
+fail:
+        if (buffer->buffer != NULL) {
+                hooks->deallocate(buffer->buffer);
+        }
+
+        if (printed != NULL) {
+                hooks->deallocate(printed);
+        }
+
+        return NULL;
+}
+
+/* Render a cJSON item/entity/structure to text. */
+CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item) {
+        return (char *)print(item, true, &global_hooks);
+}
+
+CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item) {
+        return (char *)print(item, false, &global_hooks);
+}
+
+CJSON_PUBLIC(char *)
+cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON_bool fmt) {
+        printbuffer p = {0, 0, 0, 0, 0, 0, {0, 0, 0}};
+
+        if (prebuffer < 0) {
+                return NULL;
+        }
+
+        p.buffer = (unsigned char *)global_hooks.allocate((size_t)prebuffer);
+        if (!p.buffer) {
+                return NULL;
+        }
+
+        p.length  = (size_t)prebuffer;
+        p.offset  = 0;
+        p.noalloc = false;
+        p.format  = fmt;
+        p.hooks   = global_hooks;
+
+        if (!print_value(item, &p)) {
+                global_hooks.deallocate(p.buffer);
+                return NULL;
+        }
+
+        return (char *)p.buffer;
+}
+
+CJSON_PUBLIC(cJSON_bool)
+cJSON_PrintPreallocated(cJSON *item,
+                        char *buffer,
+                        const int length,
+                        const cJSON_bool format) {
+        printbuffer p = {0, 0, 0, 0, 0, 0, {0, 0, 0}};
+
+        if ((length < 0) || (buffer == NULL)) {
+                return false;
+        }
+
+        p.buffer  = (unsigned char *)buffer;
+        p.length  = (size_t)length;
+        p.offset  = 0;
+        p.noalloc = true;
+        p.format  = format;
+        p.hooks   = global_hooks;
+
+        return print_value(item, &p);
+}
+
+/* Parser core - when encountering text, process appropriately. */
+static cJSON_bool parse_value(cJSON *const item,
+                              parse_buffer *const input_buffer) {
+        if ((input_buffer == NULL) || (input_buffer->content == NULL)) {
+                return false; /* no input */
+        }
+
+        /* parse the different types of values */
+        /* null */
+        if (can_read(input_buffer, 4) &&
+            (strncmp((const char *)buffer_at_offset(input_buffer), "null", 4) ==
+             0)) {
+                item->type = cJSON_NULL;
+                input_buffer->offset += 4;
+                return true;
+        }
+        /* false */
+        if (can_read(input_buffer, 5) &&
+            (strncmp((const char *)buffer_at_offset(input_buffer), "false",
+                     5) == 0)) {
+                item->type = cJSON_False;
+                input_buffer->offset += 5;
+                return true;
+        }
+        /* true */
+        if (can_read(input_buffer, 4) &&
+            (strncmp((const char *)buffer_at_offset(input_buffer), "true", 4) ==
+             0)) {
+                item->type     = cJSON_True;
+                item->valueint = 1;
+                input_buffer->offset += 4;
+                return true;
+        }
+        /* string */
+        if (can_access_at_index(input_buffer, 0) &&
+            (buffer_at_offset(input_buffer)[0] == '\"')) {
+                return parse_string(item, input_buffer);
+        }
+        /* number */
+        if (can_access_at_index(input_buffer, 0) &&
+            ((buffer_at_offset(input_buffer)[0] == '-') ||
+             ((buffer_at_offset(input_buffer)[0] >= '0') &&
+              (buffer_at_offset(input_buffer)[0] <= '9')))) {
+                return parse_number(item, input_buffer);
+        }
+        /* array */
+        if (can_access_at_index(input_buffer, 0) &&
+            (buffer_at_offset(input_buffer)[0] == '[')) {
+                return parse_array(item, input_buffer);
+        }
+        /* object */
+        if (can_access_at_index(input_buffer, 0) &&
+            (buffer_at_offset(input_buffer)[0] == '{')) {
+                return parse_object(item, input_buffer);
+        }
+
+        return false;
+}
+
+/* Render a value to text. */
+static cJSON_bool print_value(const cJSON *const item,
+                              printbuffer *const output_buffer) {
+        unsigned char *output = NULL;
+
+        if ((item == NULL) || (output_buffer == NULL)) {
+                return false;
+        }
+
+        switch ((item->type) & 0xFF) {
+        case cJSON_NULL:
+                output = ensure(output_buffer, 5);
+                if (output == NULL) {
+                        return false;
+                }
+                strcpy((char *)output, "null");
+                return true;
+
+        case cJSON_False:
+                output = ensure(output_buffer, 6);
+                if (output == NULL) {
+                        return false;
+                }
+                strcpy((char *)output, "false");
+                return true;
+
+        case cJSON_True:
+                output = ensure(output_buffer, 5);
+                if (output == NULL) {
+                        return false;
+                }
+                strcpy((char *)output, "true");
+                return true;
+
+        case cJSON_Number:
+                return print_number(item, output_buffer);
+
+        case cJSON_Raw: {
+                size_t raw_length = 0;
+                if (item->valuestring == NULL) {
+                        return false;
+                }
+
+                raw_length = strlen(item->valuestring) + sizeof("");
+                output     = ensure(output_buffer, raw_length);
+                if (output == NULL) {
+                        return false;
+                }
+                memcpy(output, item->valuestring, raw_length);
+                return true;
+        }
+
+        case cJSON_String:
+                return print_string(item, output_buffer);
+
+        case cJSON_Array:
+                return print_array(item, output_buffer);
+
+        case cJSON_Object:
+                return print_object(item, output_buffer);
+
+        default:
+                return false;
+        }
+}
+
+/* Build an array from input text. */
+static cJSON_bool parse_array(cJSON *const item,
+                              parse_buffer *const input_buffer) {
+        cJSON *head         = NULL; /* head of the linked list */
+        cJSON *current_item = NULL;
+
+        if (input_buffer->depth >= CJSON_NESTING_LIMIT) {
+                return false; /* to deeply nested */
+        }
+        input_buffer->depth++;
+
+        if (buffer_at_offset(input_buffer)[0] != '[') {
+                /* not an array */
+                goto fail;
+        }
+
+        input_buffer->offset++;
+        buffer_skip_whitespace(input_buffer);
+        if (can_access_at_index(input_buffer, 0) &&
+            (buffer_at_offset(input_buffer)[0] == ']')) {
+                /* empty array */
+                goto success;
+        }
+
+        /* check if we skipped to the end of the buffer */
+        if (cannot_access_at_index(input_buffer, 0)) {
+                input_buffer->offset--;
+                goto fail;
+        }
+
+        /* step back to character in front of the first element */
+        input_buffer->offset--;
+        /* loop through the comma separated array elements */
+        do {
+                /* allocate next item */
+                cJSON *new_item = cJSON_New_Item(&(input_buffer->hooks));
+                if (new_item == NULL) {
+                        goto fail; /* allocation failure */
+                }
+
+                /* attach next item to list */
+                if (head == NULL) {
+                        /* start the linked list */
+                        current_item = head = new_item;
+                } else {
+                        /* add to the end and advance */
+                        current_item->next = new_item;
+                        new_item->prev     = current_item;
+                        current_item       = new_item;
+                }
+
+                /* parse next value */
+                input_buffer->offset++;
+                buffer_skip_whitespace(input_buffer);
+                if (!parse_value(current_item, input_buffer)) {
+                        goto fail; /* failed to parse value */
+                }
+                buffer_skip_whitespace(input_buffer);
+        } while (can_access_at_index(input_buffer, 0) &&
+                 (buffer_at_offset(input_buffer)[0] == ','));
+
+        if (cannot_access_at_index(input_buffer, 0) ||
+            buffer_at_offset(input_buffer)[0] != ']') {
+                goto fail; /* expected end of array */
+        }
+
+success:
+        input_buffer->depth--;
+
+        if (head != NULL) {
+                head->prev = current_item;
+        }
+
+        item->type  = cJSON_Array;
+        item->child = head;
+
+        input_buffer->offset++;
+
+        return true;
+
+fail:
+        if (head != NULL) {
+                cJSON_Delete(head);
+        }
+
+        return false;
+}
+
+/* Render an array to text */
+static cJSON_bool print_array(const cJSON *const item,
+                              printbuffer *const output_buffer) {
+        unsigned char *output_pointer = NULL;
+        size_t length                 = 0;
+        cJSON *current_element        = item->child;
+
+        if (output_buffer == NULL) {
+                return false;
+        }
+
+        /* Compose the output array. */
+        /* opening square bracket */
+        output_pointer = ensure(output_buffer, 1);
+        if (output_pointer == NULL) {
+                return false;
+        }
+
+        *output_pointer = '[';
+        output_buffer->offset++;
+        output_buffer->depth++;
+
+        while (current_element != NULL) {
+                if (!print_value(current_element, output_buffer)) {
+                        return false;
+                }
+                update_offset(output_buffer);
+                if (current_element->next) {
+                        length = (size_t)(output_buffer->format ? 2 : 1);
+                        output_pointer = ensure(output_buffer, length + 1);
+                        if (output_pointer == NULL) {
+                                return false;
+                        }
+                        *output_pointer++ = ',';
+                        if (output_buffer->format) {
+                                *output_pointer++ = ' ';
+                        }
+                        *output_pointer = '\0';
+                        output_buffer->offset += length;
+                }
+                current_element = current_element->next;
+        }
+
+        output_pointer = ensure(output_buffer, 2);
+        if (output_pointer == NULL) {
+                return false;
+        }
+        *output_pointer++ = ']';
+        *output_pointer   = '\0';
+        output_buffer->depth--;
+
+        return true;
+}
+
+/* Build an object from the text. */
+static cJSON_bool parse_object(cJSON *const item,
+                               parse_buffer *const input_buffer) {
+        cJSON *head         = NULL; /* linked list head */
+        cJSON *current_item = NULL;
+
+        if (input_buffer->depth >= CJSON_NESTING_LIMIT) {
+                return false; /* to deeply nested */
+        }
+        input_buffer->depth++;
+
+        if (cannot_access_at_index(input_buffer, 0) ||
+            (buffer_at_offset(input_buffer)[0] != '{')) {
+                goto fail; /* not an object */
+        }
+
+        input_buffer->offset++;
+        buffer_skip_whitespace(input_buffer);
+        if (can_access_at_index(input_buffer, 0) &&
+            (buffer_at_offset(input_buffer)[0] == '}')) {
+                goto success; /* empty object */
+        }
+
+        /* check if we skipped to the end of the buffer */
+        if (cannot_access_at_index(input_buffer, 0)) {
+                input_buffer->offset--;
+                goto fail;
+        }
+
+        /* step back to character in front of the first element */
+        input_buffer->offset--;
+        /* loop through the comma separated array elements */
+        do {
+                /* allocate next item */
+                cJSON *new_item = cJSON_New_Item(&(input_buffer->hooks));
+                if (new_item == NULL) {
+                        goto fail; /* allocation failure */
+                }
+
+                /* attach next item to list */
+                if (head == NULL) {
+                        /* start the linked list */
+                        current_item = head = new_item;
+                } else {
+                        /* add to the end and advance */
+                        current_item->next = new_item;
+                        new_item->prev     = current_item;
+                        current_item       = new_item;
+                }
+
+                /* parse the name of the child */
+                input_buffer->offset++;
+                buffer_skip_whitespace(input_buffer);
+                if (!parse_string(current_item, input_buffer)) {
+                        goto fail; /* failed to parse name */
+                }
+                buffer_skip_whitespace(input_buffer);
+
+                /* swap valuestring and string, because we parsed the name */
+                current_item->string      = current_item->valuestring;
+                current_item->valuestring = NULL;
+
+                if (cannot_access_at_index(input_buffer, 0) ||
+                    (buffer_at_offset(input_buffer)[0] != ':')) {
+                        goto fail; /* invalid object */
+                }
+
+                /* parse the value */
+                input_buffer->offset++;
+                buffer_skip_whitespace(input_buffer);
+                if (!parse_value(current_item, input_buffer)) {
+                        goto fail; /* failed to parse value */
+                }
+                buffer_skip_whitespace(input_buffer);
+        } while (can_access_at_index(input_buffer, 0) &&
+                 (buffer_at_offset(input_buffer)[0] == ','));
+
+        if (cannot_access_at_index(input_buffer, 0) ||
+            (buffer_at_offset(input_buffer)[0] != '}')) {
+                goto fail; /* expected end of object */
+        }
+
+success:
+        input_buffer->depth--;
+
+        if (head != NULL) {
+                head->prev = current_item;
+        }
+
+        item->type  = cJSON_Object;
+        item->child = head;
+
+        input_buffer->offset++;
+        return true;
+
+fail:
+        if (head != NULL) {
+                cJSON_Delete(head);
+        }
+
+        return false;
+}
+
+/* Render an object to text. */
+static cJSON_bool print_object(const cJSON *const item,
+                               printbuffer *const output_buffer) {
+        unsigned char *output_pointer = NULL;
+        size_t length                 = 0;
+        cJSON *current_item           = item->child;
+
+        if (output_buffer == NULL) {
+                return false;
+        }
+
+        /* Compose the output: */
+        length         = (size_t)(output_buffer->format ? 2 : 1); /* fmt: {\n */
+        output_pointer = ensure(output_buffer, length + 1);
+        if (output_pointer == NULL) {
+                return false;
+        }
+
+        *output_pointer++ = '{';
+        output_buffer->depth++;
+        if (output_buffer->format) {
+                *output_pointer++ = '\n';
+        }
+        output_buffer->offset += length;
+
+        while (current_item) {
+                if (output_buffer->format) {
+                        size_t i;
+                        output_pointer =
+                            ensure(output_buffer, output_buffer->depth);
+                        if (output_pointer == NULL) {
+                                return false;
+                        }
+                        for (i = 0; i < output_buffer->depth; i++) {
+                                *output_pointer++ = '\t';
+                        }
+                        output_buffer->offset += output_buffer->depth;
+                }
+
+                /* print key */
+                if (!print_string_ptr((unsigned char *)current_item->string,
+                                      output_buffer)) {
+                        return false;
+                }
+                update_offset(output_buffer);
+
+                length         = (size_t)(output_buffer->format ? 2 : 1);
+                output_pointer = ensure(output_buffer, length);
+                if (output_pointer == NULL) {
+                        return false;
+                }
+                *output_pointer++ = ':';
+                if (output_buffer->format) {
+                        *output_pointer++ = '\t';
+                }
+                output_buffer->offset += length;
+
+                /* print value */
+                if (!print_value(current_item, output_buffer)) {
+                        return false;
+                }
+                update_offset(output_buffer);
+
+                /* print comma if not last */
+                length         = ((size_t)(output_buffer->format ? 1 : 0) +
+                          (size_t)(current_item->next ? 1 : 0));
+                output_pointer = ensure(output_buffer, length + 1);
+                if (output_pointer == NULL) {
+                        return false;
+                }
+                if (current_item->next) {
+                        *output_pointer++ = ',';
+                }
+
+                if (output_buffer->format) {
+                        *output_pointer++ = '\n';
+                }
+                *output_pointer = '\0';
+                output_buffer->offset += length;
+
+                current_item = current_item->next;
+        }
+
+        output_pointer =
+            ensure(output_buffer,
+                   output_buffer->format ? (output_buffer->depth + 1) : 2);
+        if (output_pointer == NULL) {
+                return false;
+        }
+        if (output_buffer->format) {
+                size_t i;
+                for (i = 0; i < (output_buffer->depth - 1); i++) {
+                        *output_pointer++ = '\t';
+                }
+        }
+        *output_pointer++ = '}';
+        *output_pointer   = '\0';
+        output_buffer->depth--;
+
+        return true;
+}
+
+/* Get Array size/item / object item. */
+CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array) {
+        cJSON *child = NULL;
+        size_t size  = 0;
+
+        if (array == NULL) {
+                return 0;
+        }
+
+        child = array->child;
+
+        while (child != NULL) {
+                size++;
+                child = child->next;
+        }
+
+        /* FIXME: Can overflow here. Cannot be fixed without breaking the API */
+
+        return (int)size;
+}
+
+static cJSON *get_array_item(const cJSON *array, size_t index) {
+        cJSON *current_child = NULL;
+
+        if (array == NULL) {
+                return NULL;
+        }
+
+        current_child = array->child;
+        while ((current_child != NULL) && (index > 0)) {
+                index--;
+                current_child = current_child->next;
+        }
+
+        return current_child;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int index) {
+        if (index < 0) {
+                return NULL;
+        }
+
+        return get_array_item(array, (size_t)index);
+}
+
+static cJSON *get_object_item(const cJSON *const object,
+                              const char *const name,
+                              const cJSON_bool case_sensitive) {
+        cJSON *current_element = NULL;
+
+        if ((object == NULL) || (name == NULL)) {
+                return NULL;
+        }
+
+        current_element = object->child;
+        if (case_sensitive) {
+                while ((current_element != NULL) &&
+                       (current_element->string != NULL) &&
+                       (strcmp(name, current_element->string) != 0)) {
+                        current_element = current_element->next;
+                }
+        } else {
+                while ((current_element != NULL) &&
+                       (case_insensitive_strcmp(
+                            (const unsigned char *)name,
+                            (const unsigned char *)(current_element->string)) !=
+                        0)) {
+                        current_element = current_element->next;
+                }
+        }
+
+        if ((current_element == NULL) || (current_element->string == NULL)) {
+                return NULL;
+        }
+
+        return current_element;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_GetObjectItem(const cJSON *const object, const char *const string) {
+        return get_object_item(object, string, false);
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_GetObjectItemCaseSensitive(const cJSON *const object,
+                                 const char *const string) {
+        return get_object_item(object, string, true);
+}
+
+CJSON_PUBLIC(cJSON_bool)
+cJSON_HasObjectItem(const cJSON *object, const char *string) {
+        return cJSON_GetObjectItem(object, string) ? 1 : 0;
+}
+
+/* Utility for array list handling. */
+static void suffix_object(cJSON *prev, cJSON *item) {
+        prev->next = item;
+        item->prev = prev;
+}
+
+/* Utility for handling references. */
+static cJSON *create_reference(const cJSON *item,
+                               const internal_hooks *const hooks) {
+        cJSON *reference = NULL;
+        if (item == NULL) {
+                return NULL;
+        }
+
+        reference = cJSON_New_Item(hooks);
+        if (reference == NULL) {
+                return NULL;
+        }
+
+        memcpy(reference, item, sizeof(cJSON));
+        reference->string = NULL;
+        reference->type |= cJSON_IsReference;
+        reference->next = reference->prev = NULL;
+        return reference;
+}
+
+static cJSON_bool add_item_to_array(cJSON *array, cJSON *item) {
+        cJSON *child = NULL;
+
+        if ((item == NULL) || (array == NULL) || (array == item)) {
+                return false;
+        }
+
+        child = array->child;
+        /*
+         * To find the last item in array quickly, we use prev in array
+         */
+        if (child == NULL) {
+                /* list is empty, start new one */
+                array->child = item;
+                item->prev   = item;
+                item->next   = NULL;
+        } else {
+                /* append to the end */
+                if (child->prev) {
+                        suffix_object(child->prev, item);
+                        array->child->prev = item;
+                }
+        }
+
+        return true;
+}
+
+/* Add item to array/object. */
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToArray(cJSON *array, cJSON *item) {
+        return add_item_to_array(array, item);
+}
+
+#if defined(__clang__) ||                                                      \
+    (defined(__GNUC__) &&                                                      \
+     ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 5))))
+#pragma GCC diagnostic push
+#endif
+#ifdef __GNUC__
+#pragma GCC diagnostic ignored "-Wcast-qual"
+#endif
+/* helper function to cast away const */
+static void *cast_away_const(const void *string) {
+        return (void *)string;
+}
+#if defined(__clang__) ||                                                      \
+    (defined(__GNUC__) &&                                                      \
+     ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 5))))
+#pragma GCC diagnostic pop
+#endif
+
+
+static cJSON_bool add_item_to_object(cJSON *const object,
+                                     const char *const string,
+                                     cJSON *const item,
+                                     const internal_hooks *const hooks,
+                                     const cJSON_bool constant_key) {
+        char *new_key = NULL;
+        int new_type  = cJSON_Invalid;
+
+        if ((object == NULL) || (string == NULL) || (item == NULL) ||
+            (object == item)) {
+                return false;
+        }
+
+        if (constant_key) {
+                new_key  = (char *)cast_away_const(string);
+                new_type = item->type | cJSON_StringIsConst;
+        } else {
+                new_key =
+                    (char *)cJSON_strdup((const unsigned char *)string, hooks);
+                if (new_key == NULL) {
+                        return false;
+                }
+
+                new_type = item->type & ~cJSON_StringIsConst;
+        }
+
+        if (!(item->type & cJSON_StringIsConst) && (item->string != NULL)) {
+                hooks->deallocate(item->string);
+        }
+
+        item->string = new_key;
+        item->type   = new_type;
+
+        return add_item_to_array(object, item);
+}
+
+CJSON_PUBLIC(cJSON_bool)
+cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item) {
+        return add_item_to_object(object, string, item, &global_hooks, false);
+}
+
+/* Add an item to an object with constant string as key */
+CJSON_PUBLIC(cJSON_bool)
+cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item) {
+        return add_item_to_object(object, string, item, &global_hooks, true);
+}
+
+CJSON_PUBLIC(cJSON_bool)
+cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item) {
+        if (array == NULL) {
+                return false;
+        }
+
+        return add_item_to_array(array, create_reference(item, &global_hooks));
+}
+
+CJSON_PUBLIC(cJSON_bool)
+cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item) {
+        if ((object == NULL) || (string == NULL)) {
+                return false;
+        }
+
+        return add_item_to_object(object, string,
+                                  create_reference(item, &global_hooks),
+                                  &global_hooks, false);
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_AddNullToObject(cJSON *const object, const char *const name) {
+        cJSON *null = cJSON_CreateNull();
+        if (add_item_to_object(object, name, null, &global_hooks, false)) {
+                return null;
+        }
+
+        cJSON_Delete(null);
+        return NULL;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_AddTrueToObject(cJSON *const object, const char *const name) {
+        cJSON *true_item = cJSON_CreateTrue();
+        if (add_item_to_object(object, name, true_item, &global_hooks, false)) {
+                return true_item;
+        }
+
+        cJSON_Delete(true_item);
+        return NULL;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_AddFalseToObject(cJSON *const object, const char *const name) {
+        cJSON *false_item = cJSON_CreateFalse();
+        if (add_item_to_object(object, name, false_item, &global_hooks,
+                               false)) {
+                return false_item;
+        }
+
+        cJSON_Delete(false_item);
+        return NULL;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_AddBoolToObject(cJSON *const object,
+                      const char *const name,
+                      const cJSON_bool boolean) {
+        cJSON *bool_item = cJSON_CreateBool(boolean);
+        if (add_item_to_object(object, name, bool_item, &global_hooks, false)) {
+                return bool_item;
+        }
+
+        cJSON_Delete(bool_item);
+        return NULL;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_AddNumberToObject(cJSON *const object,
+                        const char *const name,
+                        const double number) {
+        cJSON *number_item = cJSON_CreateNumber(number);
+        if (add_item_to_object(object, name, number_item, &global_hooks,
+                               false)) {
+                return number_item;
+        }
+
+        cJSON_Delete(number_item);
+        return NULL;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_AddStringToObject(cJSON *const object,
+                        const char *const name,
+                        const char *const string) {
+        cJSON *string_item = cJSON_CreateString(string);
+        if (add_item_to_object(object, name, string_item, &global_hooks,
+                               false)) {
+                return string_item;
+        }
+
+        cJSON_Delete(string_item);
+        return NULL;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_AddRawToObject(cJSON *const object,
+                     const char *const name,
+                     const char *const raw) {
+        cJSON *raw_item = cJSON_CreateRaw(raw);
+        if (add_item_to_object(object, name, raw_item, &global_hooks, false)) {
+                return raw_item;
+        }
+
+        cJSON_Delete(raw_item);
+        return NULL;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_AddObjectToObject(cJSON *const object, const char *const name) {
+        cJSON *object_item = cJSON_CreateObject();
+        if (add_item_to_object(object, name, object_item, &global_hooks,
+                               false)) {
+                return object_item;
+        }
+
+        cJSON_Delete(object_item);
+        return NULL;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_AddArrayToObject(cJSON *const object, const char *const name) {
+        cJSON *array = cJSON_CreateArray();
+        if (add_item_to_object(object, name, array, &global_hooks, false)) {
+                return array;
+        }
+
+        cJSON_Delete(array);
+        return NULL;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_DetachItemViaPointer(cJSON *parent, cJSON *const item) {
+        if ((parent == NULL) || (item == NULL)) {
+                return NULL;
+        }
+
+        if (item != parent->child) {
+                /* not the first element */
+                item->prev->next = item->next;
+        }
+        if (item->next != NULL) {
+                /* not the last element */
+                item->next->prev = item->prev;
+        }
+
+        if (item == parent->child) {
+                /* first element */
+                parent->child = item->next;
+        } else if (item->next == NULL) {
+                /* last element */
+                parent->child->prev = item->prev;
+        }
+
+        /* make sure the detached item doesn't point anywhere anymore */
+        item->prev = NULL;
+        item->next = NULL;
+
+        return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromArray(cJSON *array, int which) {
+        if (which < 0) {
+                return NULL;
+        }
+
+        return cJSON_DetachItemViaPointer(array,
+                                          get_array_item(array, (size_t)which));
+}
+
+CJSON_PUBLIC(void) cJSON_DeleteItemFromArray(cJSON *array, int which) {
+        cJSON_Delete(cJSON_DetachItemFromArray(array, which));
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_DetachItemFromObject(cJSON *object, const char *string) {
+        cJSON *to_detach = cJSON_GetObjectItem(object, string);
+
+        return cJSON_DetachItemViaPointer(object, to_detach);
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_DetachItemFromObjectCaseSensitive(cJSON *object, const char *string) {
+        cJSON *to_detach = cJSON_GetObjectItemCaseSensitive(object, string);
+
+        return cJSON_DetachItemViaPointer(object, to_detach);
+}
+
+CJSON_PUBLIC(void)
+cJSON_DeleteItemFromObject(cJSON *object, const char *string) {
+        cJSON_Delete(cJSON_DetachItemFromObject(object, string));
+}
+
+CJSON_PUBLIC(void)
+cJSON_DeleteItemFromObjectCaseSensitive(cJSON *object, const char *string) {
+        cJSON_Delete(cJSON_DetachItemFromObjectCaseSensitive(object, string));
+}
+
+/* Replace array/object items with new ones. */
+CJSON_PUBLIC(cJSON_bool)
+cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem) {
+        cJSON *after_inserted = NULL;
+
+        if (which < 0) {
+                return false;
+        }
+
+        after_inserted = get_array_item(array, (size_t)which);
+        if (after_inserted == NULL) {
+                return add_item_to_array(array, newitem);
+        }
+
+        newitem->next        = after_inserted;
+        newitem->prev        = after_inserted->prev;
+        after_inserted->prev = newitem;
+        if (after_inserted == array->child) {
+                array->child = newitem;
+        } else {
+                newitem->prev->next = newitem;
+        }
+        return true;
+}
+
+CJSON_PUBLIC(cJSON_bool)
+cJSON_ReplaceItemViaPointer(cJSON *const parent,
+                            cJSON *const item,
+                            cJSON *replacement) {
+        if ((parent == NULL) || (replacement == NULL) || (item == NULL)) {
+                return false;
+        }
+
+        if (replacement == item) {
+                return true;
+        }
+
+        replacement->next = item->next;
+        replacement->prev = item->prev;
+
+        if (replacement->next != NULL) {
+                replacement->next->prev = replacement;
+        }
+        if (parent->child == item) {
+                if (parent->child->prev == parent->child) {
+                        replacement->prev = replacement;
+                }
+                parent->child = replacement;
+        } else { /*
+                  * To find the last item in array quickly, we use prev in
+                  * array. We can't modify the last item's next pointer where
+                  * this item was the parent's child
+                  */
+                if (replacement->prev != NULL) {
+                        replacement->prev->next = replacement;
+                }
+                if (replacement->next == NULL) {
+                        parent->child->prev = replacement;
+                }
+        }
+
+        item->next = NULL;
+        item->prev = NULL;
+        cJSON_Delete(item);
+
+        return true;
+}
+
+CJSON_PUBLIC(cJSON_bool)
+cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem) {
+        if (which < 0) {
+                return false;
+        }
+
+        return cJSON_ReplaceItemViaPointer(
+            array, get_array_item(array, (size_t)which), newitem);
+}
+
+static cJSON_bool replace_item_in_object(cJSON *object,
+                                         const char *string,
+                                         cJSON *replacement,
+                                         cJSON_bool case_sensitive) {
+        if ((replacement == NULL) || (string == NULL)) {
+                return false;
+        }
+
+        /* replace the name in the replacement */
+        if (!(replacement->type & cJSON_StringIsConst) &&
+            (replacement->string != NULL)) {
+                cJSON_free(replacement->string);
+        }
+        replacement->string =
+            (char *)cJSON_strdup((const unsigned char *)string, &global_hooks);
+        replacement->type &= ~cJSON_StringIsConst;
+
+        return cJSON_ReplaceItemViaPointer(
+            object, get_object_item(object, string, case_sensitive),
+            replacement);
+}
+
+CJSON_PUBLIC(cJSON_bool)
+cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem) {
+        return replace_item_in_object(object, string, newitem, false);
+}
+
+CJSON_PUBLIC(cJSON_bool)
+cJSON_ReplaceItemInObjectCaseSensitive(cJSON *object,
+                                       const char *string,
+                                       cJSON *newitem) {
+        return replace_item_in_object(object, string, newitem, true);
+}
+
+/* Create basic types: */
+CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void) {
+        cJSON *item = cJSON_New_Item(&global_hooks);
+        if (item) {
+                item->type = cJSON_NULL;
+        }
+
+        return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void) {
+        cJSON *item = cJSON_New_Item(&global_hooks);
+        if (item) {
+                item->type = cJSON_True;
+        }
+
+        return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void) {
+        cJSON *item = cJSON_New_Item(&global_hooks);
+        if (item) {
+                item->type = cJSON_False;
+        }
+
+        return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateBool(cJSON_bool boolean) {
+        cJSON *item = cJSON_New_Item(&global_hooks);
+        if (item) {
+                item->type = boolean ? cJSON_True : cJSON_False;
+        }
+
+        return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num) {
+        cJSON *item = cJSON_New_Item(&global_hooks);
+        if (item) {
+                item->type        = cJSON_Number;
+                item->valuedouble = num;
+
+                /* use saturation in case of overflow */
+                if (num >= INT_MAX) {
+                        item->valueint = INT_MAX;
+                } else if (num <= (double)INT_MIN) {
+                        item->valueint = INT_MIN;
+                } else {
+                        item->valueint = (int)num;
+                }
+        }
+
+        return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string) {
+        cJSON *item = cJSON_New_Item(&global_hooks);
+        if (item) {
+                item->type        = cJSON_String;
+                item->valuestring = (char *)cJSON_strdup(
+                    (const unsigned char *)string, &global_hooks);
+                if (!item->valuestring) {
+                        cJSON_Delete(item);
+                        return NULL;
+                }
+        }
+
+        return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateStringReference(const char *string) {
+        cJSON *item = cJSON_New_Item(&global_hooks);
+        if (item != NULL) {
+                item->type        = cJSON_String | cJSON_IsReference;
+                item->valuestring = (char *)cast_away_const(string);
+        }
+
+        return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateObjectReference(const cJSON *child) {
+        cJSON *item = cJSON_New_Item(&global_hooks);
+        if (item != NULL) {
+                item->type  = cJSON_Object | cJSON_IsReference;
+                item->child = (cJSON *)cast_away_const(child);
+        }
+
+        return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateArrayReference(const cJSON *child) {
+        cJSON *item = cJSON_New_Item(&global_hooks);
+        if (item != NULL) {
+                item->type  = cJSON_Array | cJSON_IsReference;
+                item->child = (cJSON *)cast_away_const(child);
+        }
+
+        return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw) {
+        cJSON *item = cJSON_New_Item(&global_hooks);
+        if (item) {
+                item->type        = cJSON_Raw;
+                item->valuestring = (char *)cJSON_strdup(
+                    (const unsigned char *)raw, &global_hooks);
+                if (!item->valuestring) {
+                        cJSON_Delete(item);
+                        return NULL;
+                }
+        }
+
+        return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void) {
+        cJSON *item = cJSON_New_Item(&global_hooks);
+        if (item) {
+                item->type = cJSON_Array;
+        }
+
+        return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void) {
+        cJSON *item = cJSON_New_Item(&global_hooks);
+        if (item) {
+                item->type = cJSON_Object;
+        }
+
+        return item;
+}
+
+/* Create Arrays: */
+CJSON_PUBLIC(cJSON *) cJSON_CreateIntArray(const int *numbers, int count) {
+        size_t i = 0;
+        cJSON *n = NULL;
+        cJSON *p = NULL;
+        cJSON *a = NULL;
+
+        if ((count < 0) || (numbers == NULL)) {
+                return NULL;
+        }
+
+        a = cJSON_CreateArray();
+        for (i = 0; a && (i < (size_t)count); i++) {
+                n = cJSON_CreateNumber(numbers[i]);
+                if (!n) {
+                        cJSON_Delete(a);
+                        return NULL;
+                }
+                if (!i) {
+                        a->child = n;
+                } else {
+                        suffix_object(p, n);
+                }
+                p = n;
+        }
+        a->child->prev = n;
+
+        return a;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateFloatArray(const float *numbers, int count) {
+        size_t i = 0;
+        cJSON *n = NULL;
+        cJSON *p = NULL;
+        cJSON *a = NULL;
+
+        if ((count < 0) || (numbers == NULL)) {
+                return NULL;
+        }
+
+        a = cJSON_CreateArray();
+
+        for (i = 0; a && (i < (size_t)count); i++) {
+                n = cJSON_CreateNumber((double)numbers[i]);
+                if (!n) {
+                        cJSON_Delete(a);
+                        return NULL;
+                }
+                if (!i) {
+                        a->child = n;
+                } else {
+                        suffix_object(p, n);
+                }
+                p = n;
+        }
+        a->child->prev = n;
+
+        return a;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_CreateDoubleArray(const double *numbers, int count) {
+        size_t i = 0;
+        cJSON *n = NULL;
+        cJSON *p = NULL;
+        cJSON *a = NULL;
+
+        if ((count < 0) || (numbers == NULL)) {
+                return NULL;
+        }
+
+        a = cJSON_CreateArray();
+
+        for (i = 0; a && (i < (size_t)count); i++) {
+                n = cJSON_CreateNumber(numbers[i]);
+                if (!n) {
+                        cJSON_Delete(a);
+                        return NULL;
+                }
+                if (!i) {
+                        a->child = n;
+                } else {
+                        suffix_object(p, n);
+                }
+                p = n;
+        }
+        a->child->prev = n;
+
+        return a;
+}
+
+CJSON_PUBLIC(cJSON *)
+cJSON_CreateStringArray(const char *const *strings, int count) {
+        size_t i = 0;
+        cJSON *n = NULL;
+        cJSON *p = NULL;
+        cJSON *a = NULL;
+
+        if ((count < 0) || (strings == NULL)) {
+                return NULL;
+        }
+
+        a = cJSON_CreateArray();
+
+        for (i = 0; a && (i < (size_t)count); i++) {
+                n = cJSON_CreateString(strings[i]);
+                if (!n) {
+                        cJSON_Delete(a);
+                        return NULL;
+                }
+                if (!i) {
+                        a->child = n;
+                } else {
+                        suffix_object(p, n);
+                }
+                p = n;
+        }
+        a->child->prev = n;
+
+        return a;
+}
+
+/* Duplication */
+CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, cJSON_bool recurse) {
+        cJSON *newitem  = NULL;
+        cJSON *child    = NULL;
+        cJSON *next     = NULL;
+        cJSON *newchild = NULL;
+
+        /* Bail on bad ptr */
+        if (!item) {
+                goto fail;
+        }
+        /* Create new item */
+        newitem = cJSON_New_Item(&global_hooks);
+        if (!newitem) {
+                goto fail;
+        }
+        /* Copy over all vars */
+        newitem->type        = item->type & (~cJSON_IsReference);
+        newitem->valueint    = item->valueint;
+        newitem->valuedouble = item->valuedouble;
+        if (item->valuestring) {
+                newitem->valuestring = (char *)cJSON_strdup(
+                    (unsigned char *)item->valuestring, &global_hooks);
+                if (!newitem->valuestring) {
+                        goto fail;
+                }
+        }
+        if (item->string) {
+                newitem->string =
+                    (item->type & cJSON_StringIsConst)
+                        ? item->string
+                        : (char *)cJSON_strdup((unsigned char *)item->string,
+                                               &global_hooks);
+                if (!newitem->string) {
+                        goto fail;
+                }
+        }
+        /* If non-recursive, then we're done! */
+        if (!recurse) {
+                return newitem;
+        }
+        /* Walk the ->next chain for the child. */
+        child = item->child;
+        while (child != NULL) {
+                newchild = cJSON_Duplicate(
+                    child, true); /* Duplicate (with recurse) each item in the
+                                     ->next chain */
+                if (!newchild) {
+                        goto fail;
+                }
+                if (next != NULL) {
+                        /* If newitem->child already set, then crosswire ->prev
+                         * and ->next and move on */
+                        next->next     = newchild;
+                        newchild->prev = next;
+                        next           = newchild;
+                } else {
+                        /* Set newitem->child and move to it */
+                        newitem->child = newchild;
+                        next           = newchild;
+                }
+                child = child->next;
+        }
+        if (newitem && newitem->child) {
+                newitem->child->prev = newchild;
+        }
+
+        return newitem;
+
+fail:
+        if (newitem != NULL) {
+                cJSON_Delete(newitem);
+        }
+
+        return NULL;
+}
+
+static void skip_oneline_comment(char **input) {
+        *input += static_strlen("//");
+
+        for (; (*input)[0] != '\0'; ++(*input)) {
+                if ((*input)[0] == '\n') {
+                        *input += static_strlen("\n");
+                        return;
+                }
+        }
+}
+
+static void skip_multiline_comment(char **input) {
+        *input += static_strlen("/*");
+
+        for (; (*input)[0] != '\0'; ++(*input)) {
+                if (((*input)[0] == '*') && ((*input)[1] == '/')) {
+                        *input += static_strlen("*/");
+                        return;
+                }
+        }
+}
+
+static void minify_string(char **input, char **output) {
+        (*output)[0] = (*input)[0];
+        *input += static_strlen("\"");
+        *output += static_strlen("\"");
+
+
+        for (; (*input)[0] != '\0'; (void)++(*input), ++(*output)) {
+                (*output)[0] = (*input)[0];
+
+                if ((*input)[0] == '\"') {
+                        (*output)[0] = '\"';
+                        *input += static_strlen("\"");
+                        *output += static_strlen("\"");
+                        return;
+                } else if (((*input)[0] == '\\') && ((*input)[1] == '\"')) {
+                        (*output)[1] = (*input)[1];
+                        *input += static_strlen("\"");
+                        *output += static_strlen("\"");
+                }
+        }
+}
+
+CJSON_PUBLIC(void) cJSON_Minify(char *json) {
+        char *into = json;
+
+        if (json == NULL) {
+                return;
+        }
+
+        while (json[0] != '\0') {
+                switch (json[0]) {
+                case ' ':
+                case '\t':
+                case '\r':
+                case '\n':
+                        json++;
+                        break;
+
+                case '/':
+                        if (json[1] == '/') {
+                                skip_oneline_comment(&json);
+                        } else if (json[1] == '*') {
+                                skip_multiline_comment(&json);
+                        } else {
+                                json++;
+                        }
+                        break;
+
+                case '\"':
+                        minify_string(&json, (char **)&into);
+                        break;
+
+                default:
+                        into[0] = json[0];
+                        json++;
+                        into++;
+                }
+        }
+
+        /* and null-terminate. */
+        *into = '\0';
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsInvalid(const cJSON *const item) {
+        if (item == NULL) {
+                return false;
+        }
+
+        return (item->type & 0xFF) == cJSON_Invalid;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsFalse(const cJSON *const item) {
+        if (item == NULL) {
+                return false;
+        }
+
+        return (item->type & 0xFF) == cJSON_False;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsTrue(const cJSON *const item) {
+        if (item == NULL) {
+                return false;
+        }
+
+        return (item->type & 0xff) == cJSON_True;
+}
+
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsBool(const cJSON *const item) {
+        if (item == NULL) {
+                return false;
+        }
+
+        return (item->type & (cJSON_True | cJSON_False)) != 0;
+}
+CJSON_PUBLIC(cJSON_bool) cJSON_IsNull(const cJSON *const item) {
+        if (item == NULL) {
+                return false;
+        }
+
+        return (item->type & 0xFF) == cJSON_NULL;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsNumber(const cJSON *const item) {
+        if (item == NULL) {
+                return false;
+        }
+
+        return (item->type & 0xFF) == cJSON_Number;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsString(const cJSON *const item) {
+        if (item == NULL) {
+                return false;
+        }
+
+        return (item->type & 0xFF) == cJSON_String;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsArray(const cJSON *const item) {
+        if (item == NULL) {
+                return false;
+        }
+
+        return (item->type & 0xFF) == cJSON_Array;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsObject(const cJSON *const item) {
+        if (item == NULL) {
+                return false;
+        }
+
+        return (item->type & 0xFF) == cJSON_Object;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsRaw(const cJSON *const item) {
+        if (item == NULL) {
+                return false;
+        }
+
+        return (item->type & 0xFF) == cJSON_Raw;
+}
+
+CJSON_PUBLIC(cJSON_bool)
+cJSON_Compare(const cJSON *const a,
+              const cJSON *const b,
+              const cJSON_bool case_sensitive) {
+        if ((a == NULL) || (b == NULL) ||
+            ((a->type & 0xFF) != (b->type & 0xFF)) || cJSON_IsInvalid(a)) {
+                return false;
+        }
+
+        /* check if type is valid */
+        switch (a->type & 0xFF) {
+        case cJSON_False:
+        case cJSON_True:
+        case cJSON_NULL:
+        case cJSON_Number:
+        case cJSON_String:
+        case cJSON_Raw:
+        case cJSON_Array:
+        case cJSON_Object:
+                break;
+
+        default:
+                return false;
+        }
+
+        /* identical objects are equal */
+        if (a == b) {
+                return true;
+        }
+
+        switch (a->type & 0xFF) {
+        /* in these cases and equal type is enough */
+        case cJSON_False:
+        case cJSON_True:
+        case cJSON_NULL:
+                return true;
+
+        case cJSON_Number:
+                if (compare_double(a->valuedouble, b->valuedouble)) {
+                        return true;
+                }
+                return false;
+
+        case cJSON_String:
+        case cJSON_Raw:
+                if ((a->valuestring == NULL) || (b->valuestring == NULL)) {
+                        return false;
+                }
+                if (strcmp(a->valuestring, b->valuestring) == 0) {
+                        return true;
+                }
+
+                return false;
+
+        case cJSON_Array: {
+                cJSON *a_element = a->child;
+                cJSON *b_element = b->child;
+
+                for (; (a_element != NULL) && (b_element != NULL);) {
+                        if (!cJSON_Compare(a_element, b_element,
+                                           case_sensitive)) {
+                                return false;
+                        }
+
+                        a_element = a_element->next;
+                        b_element = b_element->next;
+                }
+
+                /* one of the arrays is longer than the other */
+                if (a_element != b_element) {
+                        return false;
+                }
+
+                return true;
+        }
+
+        case cJSON_Object: {
+                cJSON *a_element = NULL;
+                cJSON *b_element = NULL;
+                cJSON_ArrayForEach(a_element, a) {
+                        /* TODO This has O(n^2) runtime, which is horrible! */
+                        b_element = get_object_item(b, a_element->string,
+                                                    case_sensitive);
+                        if (b_element == NULL) {
+                                return false;
+                        }
+
+                        if (!cJSON_Compare(a_element, b_element,
+                                           case_sensitive)) {
+                                return false;
+                        }
+                }
+
+                /* doing this twice, once on a and b to prevent true comparison
+                 * if a subset of b
+                 * TODO: Do this the proper way, this is just a fix for now */
+                cJSON_ArrayForEach(b_element, b) {
+                        a_element = get_object_item(a, b_element->string,
+                                                    case_sensitive);
+                        if (a_element == NULL) {
+                                return false;
+                        }
+
+                        if (!cJSON_Compare(b_element, a_element,
+                                           case_sensitive)) {
+                                return false;
+                        }
+                }
+
+                return true;
+        }
+
+        default:
+                return false;
+        }
+}
+
+CJSON_PUBLIC(void *) cJSON_malloc(size_t size) {
+        return global_hooks.allocate(size);
+}
+
+CJSON_PUBLIC(void) cJSON_free(void *object) {
+        global_hooks.deallocate(object);
+}