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dpu-utilities/0009-Add-rexec-shim.patch
yangxin 4141866c23 Add udsproxy, add whitelist to qtfs and rexec, fix errors. 
Signed-off-by: yangxin <245051644@qq.com>
2023-02-10 14:16:08 +00:00

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From 0a219b5916028f8333bf44563fa7cf17e8f07879 Mon Sep 17 00:00:00 2001
From: yangxin <245051644@qq.com>
Date: Fri, 10 Feb 2023 17:02:59 +0800
Subject: [PATCH 5/5] Add rexec shim.
Signed-off-by: yangxin <245051644@qq.com>
---
qtfs/rexec/Makefile | 21 +-
qtfs/rexec/client.go | 8 +-
qtfs/rexec/common.go | 11 +-
qtfs/rexec/fd.go | 122 ++
qtfs/rexec/rshim/Makefile | 10 +
qtfs/rexec/rshim/cJSON.c | 3119 +++++++++++++++++++++++++++++++++
qtfs/rexec/rshim/cJSON.h | 300 ++++
qtfs/rexec/rshim/rexec_shim.c | 198 +++
qtfs/rexec/server.go | 11 +-
9 files changed, 3788 insertions(+), 12 deletions(-)
create mode 100644 qtfs/rexec/fd.go
create mode 100644 qtfs/rexec/rshim/Makefile
create mode 100644 qtfs/rexec/rshim/cJSON.c
create mode 100644 qtfs/rexec/rshim/cJSON.h
create mode 100644 qtfs/rexec/rshim/rexec_shim.c
diff --git a/qtfs/rexec/Makefile b/qtfs/rexec/Makefile
index 86d4f78..96fbdb0 100644
--- a/qtfs/rexec/Makefile
+++ b/qtfs/rexec/Makefile
@@ -1,11 +1,22 @@
-all: rexec rexec_server
+all: rexec rexec_server rexec_shim
-rexec : client.go common.go
- go build -o rexec client.go common.go
+rexec : client.go common.go fd.go
+ go build -o rexec client.go common.go fd.go
-rexec_server : server.go common.go
- go build -o rexec_server server.go common.go
+rexec_server : server.go common.go fd.go
+ go build -o rexec_server server.go common.go fd.go
test:
go test -v ./common_test.go ./common.go
+
+rexec_shim:
+ $(MAKE) -C ./rshim
+
+install:
+ cp -f rexec /usr/bin/
+ cp -f rexec /usr/bin/
+ $(MAKE) install -C ./rshim
+
clean:
rm -rf rexec rexec_server
+ $(MAKE) clean -C ./rshim
+
diff --git a/qtfs/rexec/client.go b/qtfs/rexec/client.go
index dc1af8b..55835de 100644
--- a/qtfs/rexec/client.go
+++ b/qtfs/rexec/client.go
@@ -8,6 +8,7 @@ import (
"os/signal"
"path/filepath"
"strconv"
+ "strings"
"syscall"
"time"
@@ -61,6 +62,9 @@ func removePidFile() {
func cleanRedundantPidFile() {
filepath.Walk(rexecPidDir, func(path string, info os.FileInfo, err error) error {
+ if strings.TrimSuffix(path, "/") == strings.TrimSuffix(rexecPidDir, "/") {
+ return nil
+ }
f, err := os.Open(path)
if err != nil {
// open failed, just skip
@@ -147,7 +151,9 @@ func main() {
Stderr: os.Stderr,
Env: append([]string{}, os.Environ()...),
StatusChan: remoteSender,
+ Files: make(map[int]FileInfo),
}
+ checkpointFileInfo(command.Files)
err = sender.Send(command)
if err != nil {
@@ -168,7 +174,7 @@ retry:
log.Fatal(err)
}
if (response.WhiteList == 0) {
- log.Fatalf("%s command in White List of rexec server\n", command.Cmd)
+ log.Fatalf("%s command not in White List of rexec server\n", command.Cmd)
}
pid := response.Pid
lpid := os.Getpid()
diff --git a/qtfs/rexec/common.go b/qtfs/rexec/common.go
index b59b12b..a74c32b 100644
--- a/qtfs/rexec/common.go
+++ b/qtfs/rexec/common.go
@@ -1,16 +1,16 @@
package main
import (
+ "encoding/json"
"fmt"
"io"
+ "io/ioutil"
"net"
"net/url"
"os"
"strconv"
"strings"
"syscall"
- "io/ioutil"
- "encoding/json"
"github.com/docker/libchan"
)
@@ -29,6 +29,7 @@ type RemoteCommand struct {
Stderr io.WriteCloser
StatusChan libchan.Sender
Cgroups map[string]string
+ Files map[int]FileInfo
}
func CheckRight(fileName string) error {
@@ -43,11 +44,11 @@ func CheckRight(fileName string) error {
gid = int(stat.Gid)
mode = int(stat.Mode)
- if (uid != 0 || gid != 0) {
+ if uid != 0 || gid != 0 {
return fmt.Errorf("Owner of %s must be root\n", fileName)
}
- if (mode & 0777 != 0400) {
+ if mode & 0777 != 0400 {
return fmt.Errorf("Mode of %s must be 0400\n", fileName)
}
@@ -113,7 +114,7 @@ func parseUnixAddr(inAddr string) (NetAddr, error) {
}, nil
}
-func readAddrFromFile(role string) (string) {
+func readAddrFromFile(role string) string {
fileName := fmt.Sprintf("%s/%s.json", configDir, role)
if err := CheckRight(fileName); err != nil {
fmt.Printf("Check right of %s failed: %s", fileName, err)
diff --git a/qtfs/rexec/fd.go b/qtfs/rexec/fd.go
new file mode 100644
index 0000000..acff8d4
--- /dev/null
+++ b/qtfs/rexec/fd.go
@@ -0,0 +1,122 @@
+package main
+
+import (
+ "encoding/json"
+ "fmt"
+ "io/ioutil"
+ "log"
+ "math/rand"
+ "os"
+ "path/filepath"
+ "sort"
+ "strconv"
+ "strings"
+)
+
+const FdPath = "/var/run/rexec/fds/"
+
+type FileInfo struct {
+ Fd int
+ Path string
+ Perm int
+ Offset int
+}
+
+type Files struct {
+ Files []FileInfo
+}
+
+var defaultLetters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
+
+func randString(n int) string {
+ b := make([]rune, n)
+ letterLen := len(defaultLetters)
+
+ for i := range b {
+ b[i] = defaultLetters[rand.Intn(letterLen)]
+ }
+
+ return string(b)
+}
+
+func getPosAndFlags(path string) (int, int, error) {
+ content, err := ioutil.ReadFile(path)
+ if err != nil {
+ log.Printf("failed to read file(%s):%s", path, err.Error())
+ return 0, 0, err
+ }
+ var pos, flags int
+ fmt.Sscanf(string(content), "pos:%d\nflags:%o", &pos, &flags)
+ return pos, flags, nil
+}
+
+func checkpointFileInfo(fdMaps map[int]FileInfo) {
+ procPath := "/proc/self"
+ fdPath := procPath + "/fd/"
+ fdinfoPath := procPath + "/fdinfo/"
+
+ filepath.Walk(fdPath, func(path string, fi os.FileInfo, err error) error {
+ if fi == nil || err != nil {
+ log.Printf("path %s failed with %s\n", path, err.Error())
+ return nil
+ }
+ fdstr := strings.TrimPrefix(path, fdPath)
+ if fdstr == "" {
+ return nil
+ }
+ fd, err := strconv.Atoi(fdstr)
+ if err != nil {
+ log.Printf("convert fd string(%s) to int failed: %s\n", fdstr, err.Error())
+ return nil
+ }
+
+ linkPath, err := os.Readlink(path)
+ if err != nil {
+ log.Printf("readlink (%s) failed with: %s\n", path, err.Error())
+ return nil
+ }
+ // skip stdin/stdout/stderr or non-regular files
+ if fd < 3 || !strings.HasPrefix(linkPath, "/") {
+ return nil
+ }
+
+ pos, flags, err := getPosAndFlags(fdinfoPath + fdstr)
+ if err != nil {
+ return nil
+ }
+ fdMaps[fd] = FileInfo{
+ Fd: fd,
+ Path: linkPath,
+ Perm: flags,
+ Offset: pos,
+ }
+ return nil
+ })
+}
+
+func restoreFileInfo(cmd string, fdMaps map[int]FileInfo) string {
+ var fds []int
+ var fs Files
+
+ for fd := range fdMaps {
+ fds = append(fds, fd)
+ }
+
+ sort.Ints(fds)
+ fs.Files = []FileInfo{}
+ for _, fd := range fds {
+ fs.Files = append(fs.Files, fdMaps[fd])
+ }
+ js, err := json.Marshal(fs)
+ if err != nil {
+ return ""
+ }
+ os.MkdirAll(FdPath, os.ModePerm)
+ _, cmdName := filepath.Split(cmd)
+ fName := FdPath + cmdName + "-" + randString(20) + ".json"
+ if err := ioutil.WriteFile(fName, js, 0640); err != nil {
+ log.Printf("write %s faild with error: %s\n", fName, err.Error())
+ return ""
+ }
+ return fName
+}
diff --git a/qtfs/rexec/rshim/Makefile b/qtfs/rexec/rshim/Makefile
new file mode 100644
index 0000000..6e28911
--- /dev/null
+++ b/qtfs/rexec/rshim/Makefile
@@ -0,0 +1,10 @@
+all: rexec_shim
+
+rexec_shim:
+ gcc -g -O2 -o rexec_shim rexec_shim.c cJSON.c
+
+install:
+ cp rexec_shim /usr/bin/
+
+clean:
+ rm -rf rexec_shim *.o
diff --git a/qtfs/rexec/rshim/cJSON.c b/qtfs/rexec/rshim/cJSON.c
new file mode 100644
index 0000000..524ba46
--- /dev/null
+++ b/qtfs/rexec/rshim/cJSON.c
@@ -0,0 +1,3119 @@
+/*
+ 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
+#ifdef _WIN32
+#define NAN sqrt(-1.0)
+#else
+#define NAN 0.0/0.0
+#endif
+#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 != 15)
+ #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;
+ }
+
+ 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 if(d == (double)item->valueint)
+ {
+ length = sprintf((char*)number_buffer, "%d", item->valueint);
+ }
+ 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);
+ if (replacement->string == NULL)
+ {
+ return false;
+ }
+
+ 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;
+ }
+
+ if (a && a->child) {
+ 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;
+ }
+
+ if (a && a->child) {
+ 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;
+ }
+
+ if (a && a->child) {
+ 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;
+ }
+
+ if (a && a->child) {
+ 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)))
+ {
+ 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);
+}
diff --git a/qtfs/rexec/rshim/cJSON.h b/qtfs/rexec/rshim/cJSON.h
new file mode 100644
index 0000000..95a9cf6
--- /dev/null
+++ b/qtfs/rexec/rshim/cJSON.h
@@ -0,0 +1,300 @@
+/*
+ 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.
+*/
+
+#ifndef cJSON__h
+#define cJSON__h
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#if !defined(__WINDOWS__) && (defined(WIN32) || defined(WIN64) || defined(_MSC_VER) || defined(_WIN32))
+#define __WINDOWS__
+#endif
+
+#ifdef __WINDOWS__
+
+/* When compiling for windows, we specify a specific calling convention to avoid issues where we are being called from a project with a different default calling convention. For windows you have 3 define options:
+
+CJSON_HIDE_SYMBOLS - Define this in the case where you don't want to ever dllexport symbols
+CJSON_EXPORT_SYMBOLS - Define this on library build when you want to dllexport symbols (default)
+CJSON_IMPORT_SYMBOLS - Define this if you want to dllimport symbol
+
+For *nix builds that support visibility attribute, you can define similar behavior by
+
+setting default visibility to hidden by adding
+-fvisibility=hidden (for gcc)
+or
+-xldscope=hidden (for sun cc)
+to CFLAGS
+
+then using the CJSON_API_VISIBILITY flag to "export" the same symbols the way CJSON_EXPORT_SYMBOLS does
+
+*/
+
+#define CJSON_CDECL __cdecl
+#define CJSON_STDCALL __stdcall
+
+/* export symbols by default, this is necessary for copy pasting the C and header file */
+#if !defined(CJSON_HIDE_SYMBOLS) && !defined(CJSON_IMPORT_SYMBOLS) && !defined(CJSON_EXPORT_SYMBOLS)
+#define CJSON_EXPORT_SYMBOLS
+#endif
+
+#if defined(CJSON_HIDE_SYMBOLS)
+#define CJSON_PUBLIC(type) type CJSON_STDCALL
+#elif defined(CJSON_EXPORT_SYMBOLS)
+#define CJSON_PUBLIC(type) __declspec(dllexport) type CJSON_STDCALL
+#elif defined(CJSON_IMPORT_SYMBOLS)
+#define CJSON_PUBLIC(type) __declspec(dllimport) type CJSON_STDCALL
+#endif
+#else /* !__WINDOWS__ */
+#define CJSON_CDECL
+#define CJSON_STDCALL
+
+#if (defined(__GNUC__) || defined(__SUNPRO_CC) || defined (__SUNPRO_C)) && defined(CJSON_API_VISIBILITY)
+#define CJSON_PUBLIC(type) __attribute__((visibility("default"))) type
+#else
+#define CJSON_PUBLIC(type) type
+#endif
+#endif
+
+/* project version */
+#define CJSON_VERSION_MAJOR 1
+#define CJSON_VERSION_MINOR 7
+#define CJSON_VERSION_PATCH 15
+
+#include <stddef.h>
+
+/* cJSON Types: */
+#define cJSON_Invalid (0)
+#define cJSON_False (1 << 0)
+#define cJSON_True (1 << 1)
+#define cJSON_NULL (1 << 2)
+#define cJSON_Number (1 << 3)
+#define cJSON_String (1 << 4)
+#define cJSON_Array (1 << 5)
+#define cJSON_Object (1 << 6)
+#define cJSON_Raw (1 << 7) /* raw json */
+
+#define cJSON_IsReference 256
+#define cJSON_StringIsConst 512
+
+/* The cJSON structure: */
+typedef struct cJSON
+{
+ /* next/prev allow you to walk array/object chains. Alternatively, use GetArraySize/GetArrayItem/GetObjectItem */
+ struct cJSON *next;
+ struct cJSON *prev;
+ /* An array or object item will have a child pointer pointing to a chain of the items in the array/object. */
+ struct cJSON *child;
+
+ /* The type of the item, as above. */
+ int type;
+
+ /* The item's string, if type==cJSON_String and type == cJSON_Raw */
+ char *valuestring;
+ /* writing to valueint is DEPRECATED, use cJSON_SetNumberValue instead */
+ int valueint;
+ /* The item's number, if type==cJSON_Number */
+ double valuedouble;
+
+ /* The item's name string, if this item is the child of, or is in the list of subitems of an object. */
+ char *string;
+} cJSON;
+
+typedef struct cJSON_Hooks
+{
+ /* malloc/free are CDECL on Windows regardless of the default calling convention of the compiler, so ensure the hooks allow passing those functions directly. */
+ void *(CJSON_CDECL *malloc_fn)(size_t sz);
+ void (CJSON_CDECL *free_fn)(void *ptr);
+} cJSON_Hooks;
+
+typedef int cJSON_bool;
+
+/* Limits how deeply nested arrays/objects can be before cJSON rejects to parse them.
+ * This is to prevent stack overflows. */
+#ifndef CJSON_NESTING_LIMIT
+#define CJSON_NESTING_LIMIT 1000
+#endif
+
+/* returns the version of cJSON as a string */
+CJSON_PUBLIC(const char*) cJSON_Version(void);
+
+/* Supply malloc, realloc and free functions to cJSON */
+CJSON_PUBLIC(void) cJSON_InitHooks(cJSON_Hooks* hooks);
+
+/* Memory Management: the caller is always responsible to free the results from all variants of cJSON_Parse (with cJSON_Delete) and cJSON_Print (with stdlib free, cJSON_Hooks.free_fn, or cJSON_free as appropriate). The exception is cJSON_PrintPreallocated, where the caller has full responsibility of the buffer. */
+/* Supply a block of JSON, and this returns a cJSON object you can interrogate. */
+CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value);
+CJSON_PUBLIC(cJSON *) cJSON_ParseWithLength(const char *value, size_t buffer_length);
+/* ParseWithOpts allows you to require (and check) that the JSON is null terminated, and to retrieve the pointer to the final byte parsed. */
+/* If you supply a ptr in return_parse_end and parsing fails, then return_parse_end will contain a pointer to the error so will match cJSON_GetErrorPtr(). */
+CJSON_PUBLIC(cJSON *) cJSON_ParseWithOpts(const char *value, const char **return_parse_end, cJSON_bool require_null_terminated);
+CJSON_PUBLIC(cJSON *) cJSON_ParseWithLengthOpts(const char *value, size_t buffer_length, const char **return_parse_end, cJSON_bool require_null_terminated);
+
+/* Render a cJSON entity to text for transfer/storage. */
+CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item);
+/* Render a cJSON entity to text for transfer/storage without any formatting. */
+CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item);
+/* Render a cJSON entity to text using a buffered strategy. prebuffer is a guess at the final size. guessing well reduces reallocation. fmt=0 gives unformatted, =1 gives formatted */
+CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON_bool fmt);
+/* Render a cJSON entity to text using a buffer already allocated in memory with given length. Returns 1 on success and 0 on failure. */
+/* NOTE: cJSON is not always 100% accurate in estimating how much memory it will use, so to be safe allocate 5 bytes more than you actually need */
+CJSON_PUBLIC(cJSON_bool) cJSON_PrintPreallocated(cJSON *item, char *buffer, const int length, const cJSON_bool format);
+/* Delete a cJSON entity and all subentities. */
+CJSON_PUBLIC(void) cJSON_Delete(cJSON *item);
+
+/* Returns the number of items in an array (or object). */
+CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array);
+/* Retrieve item number "index" from array "array". Returns NULL if unsuccessful. */
+CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int index);
+/* Get item "string" from object. Case insensitive. */
+CJSON_PUBLIC(cJSON *) cJSON_GetObjectItem(const cJSON * const object, const char * const string);
+CJSON_PUBLIC(cJSON *) cJSON_GetObjectItemCaseSensitive(const cJSON * const object, const char * const string);
+CJSON_PUBLIC(cJSON_bool) cJSON_HasObjectItem(const cJSON *object, const char *string);
+/* For analysing failed parses. This returns a pointer to the parse error. You'll probably need to look a few chars back to make sense of it. Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds. */
+CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void);
+
+/* Check item type and return its value */
+CJSON_PUBLIC(char *) cJSON_GetStringValue(const cJSON * const item);
+CJSON_PUBLIC(double) cJSON_GetNumberValue(const cJSON * const item);
+
+/* These functions check the type of an item */
+CJSON_PUBLIC(cJSON_bool) cJSON_IsInvalid(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsFalse(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsTrue(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsBool(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsNull(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsNumber(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsString(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsArray(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsObject(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsRaw(const cJSON * const item);
+
+/* These calls create a cJSON item of the appropriate type. */
+CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateBool(cJSON_bool boolean);
+CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num);
+CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string);
+/* raw json */
+CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw);
+CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void);
+
+/* Create a string where valuestring references a string so
+ * it will not be freed by cJSON_Delete */
+CJSON_PUBLIC(cJSON *) cJSON_CreateStringReference(const char *string);
+/* Create an object/array that only references it's elements so
+ * they will not be freed by cJSON_Delete */
+CJSON_PUBLIC(cJSON *) cJSON_CreateObjectReference(const cJSON *child);
+CJSON_PUBLIC(cJSON *) cJSON_CreateArrayReference(const cJSON *child);
+
+/* These utilities create an Array of count items.
+ * The parameter count cannot be greater than the number of elements in the number array, otherwise array access will be out of bounds.*/
+CJSON_PUBLIC(cJSON *) cJSON_CreateIntArray(const int *numbers, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateFloatArray(const float *numbers, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateDoubleArray(const double *numbers, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateStringArray(const char *const *strings, int count);
+
+/* Append item to the specified array/object. */
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToArray(cJSON *array, cJSON *item);
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item);
+/* Use this when string is definitely const (i.e. a literal, or as good as), and will definitely survive the cJSON object.
+ * WARNING: When this function was used, make sure to always check that (item->type & cJSON_StringIsConst) is zero before
+ * writing to `item->string` */
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item);
+/* Append reference to item to the specified array/object. Use this when you want to add an existing cJSON to a new cJSON, but don't want to corrupt your existing cJSON. */
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item);
+
+/* Remove/Detach items from Arrays/Objects. */
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemViaPointer(cJSON *parent, cJSON * const item);
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromArray(cJSON *array, int which);
+CJSON_PUBLIC(void) cJSON_DeleteItemFromArray(cJSON *array, int which);
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObject(cJSON *object, const char *string);
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObjectCaseSensitive(cJSON *object, const char *string);
+CJSON_PUBLIC(void) cJSON_DeleteItemFromObject(cJSON *object, const char *string);
+CJSON_PUBLIC(void) cJSON_DeleteItemFromObjectCaseSensitive(cJSON *object, const char *string);
+
+/* Update array items. */
+CJSON_PUBLIC(cJSON_bool) cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem); /* Shifts pre-existing items to the right. */
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemViaPointer(cJSON * const parent, cJSON * const item, cJSON * replacement);
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem);
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem);
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInObjectCaseSensitive(cJSON *object,const char *string,cJSON *newitem);
+
+/* Duplicate a cJSON item */
+CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, cJSON_bool recurse);
+/* Duplicate will create a new, identical cJSON item to the one you pass, in new memory that will
+ * need to be released. With recurse!=0, it will duplicate any children connected to the item.
+ * The item->next and ->prev pointers are always zero on return from Duplicate. */
+/* Recursively compare two cJSON items for equality. If either a or b is NULL or invalid, they will be considered unequal.
+ * case_sensitive determines if object keys are treated case sensitive (1) or case insensitive (0) */
+CJSON_PUBLIC(cJSON_bool) cJSON_Compare(const cJSON * const a, const cJSON * const b, const cJSON_bool case_sensitive);
+
+/* Minify a strings, remove blank characters(such as ' ', '\t', '\r', '\n') from strings.
+ * The input pointer json cannot point to a read-only address area, such as a string constant,
+ * but should point to a readable and writable address area. */
+CJSON_PUBLIC(void) cJSON_Minify(char *json);
+
+/* Helper functions for creating and adding items to an object at the same time.
+ * They return the added item or NULL on failure. */
+CJSON_PUBLIC(cJSON*) cJSON_AddNullToObject(cJSON * const object, const char * const name);
+CJSON_PUBLIC(cJSON*) cJSON_AddTrueToObject(cJSON * const object, const char * const name);
+CJSON_PUBLIC(cJSON*) cJSON_AddFalseToObject(cJSON * const object, const char * const name);
+CJSON_PUBLIC(cJSON*) cJSON_AddBoolToObject(cJSON * const object, const char * const name, const cJSON_bool boolean);
+CJSON_PUBLIC(cJSON*) cJSON_AddNumberToObject(cJSON * const object, const char * const name, const double number);
+CJSON_PUBLIC(cJSON*) cJSON_AddStringToObject(cJSON * const object, const char * const name, const char * const string);
+CJSON_PUBLIC(cJSON*) cJSON_AddRawToObject(cJSON * const object, const char * const name, const char * const raw);
+CJSON_PUBLIC(cJSON*) cJSON_AddObjectToObject(cJSON * const object, const char * const name);
+CJSON_PUBLIC(cJSON*) cJSON_AddArrayToObject(cJSON * const object, const char * const name);
+
+/* When assigning an integer value, it needs to be propagated to valuedouble too. */
+#define cJSON_SetIntValue(object, number) ((object) ? (object)->valueint = (object)->valuedouble = (number) : (number))
+/* helper for the cJSON_SetNumberValue macro */
+CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number);
+#define cJSON_SetNumberValue(object, number) ((object != NULL) ? cJSON_SetNumberHelper(object, (double)number) : (number))
+/* Change the valuestring of a cJSON_String object, only takes effect when type of object is cJSON_String */
+CJSON_PUBLIC(char*) cJSON_SetValuestring(cJSON *object, const char *valuestring);
+
+/* If the object is not a boolean type this does nothing and returns cJSON_Invalid else it returns the new type*/
+#define cJSON_SetBoolValue(object, boolValue) ( \
+ (object != NULL && ((object)->type & (cJSON_False|cJSON_True))) ? \
+ (object)->type=((object)->type &(~(cJSON_False|cJSON_True)))|((boolValue)?cJSON_True:cJSON_False) : \
+ cJSON_Invalid\
+)
+
+/* Macro for iterating over an array or object */
+#define cJSON_ArrayForEach(element, array) for(element = (array != NULL) ? (array)->child : NULL; element != NULL; element = element->next)
+
+/* malloc/free objects using the malloc/free functions that have been set with cJSON_InitHooks */
+CJSON_PUBLIC(void *) cJSON_malloc(size_t size);
+CJSON_PUBLIC(void) cJSON_free(void *object);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/qtfs/rexec/rshim/rexec_shim.c b/qtfs/rexec/rshim/rexec_shim.c
new file mode 100644
index 0000000..8e1b6ca
--- /dev/null
+++ b/qtfs/rexec/rshim/rexec_shim.c
@@ -0,0 +1,198 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <time.h>
+#include <sys/ioctl.h>
+#include "cJSON.h"
+
+#include "dirent.h"
+
+#define RSHIM_LOG_FILE "/var/run/rexec/rexec_shim.log"
+#define rshim_log(info, ...) \
+ do { \
+ time_t t; \
+ struct tm *p; \
+ time(&t); \
+ p = localtime(&t); \
+ printf("[%d/%02d/%02d %02d:%02d:%02d][LOG:%s:%3d]"info"\n", \
+ p->tm_year + 1900, p->tm_mon+1, p->tm_mday, \
+ p->tm_hour, p->tm_min, p->tm_sec, __func__, __LINE__, ##__VA_ARGS__); \
+ } while (0);
+
+#define rshim_err(info, ...) \
+ do { \
+ time_t t; \
+ struct tm *p; \
+ time(&t); \
+ p = localtime(&t); \
+ printf("[%d/%02d/%02d %02d:%02d:%02d][LOG:%s:%3d]"info"\n", \
+ p->tm_year + 1900, p->tm_mon+1, p->tm_mday, \
+ p->tm_hour, p->tm_min, p->tm_sec, __func__, __LINE__, ##__VA_ARGS__); \
+ } while (0);
+
+void rshim_close_all_fd()
+{
+ DIR *dir = NULL;
+ struct dirent *entry;
+ dir = opendir("/proc/self/fd/");
+ if (dir == NULL) {
+ rshim_err("open path:/proc/self/fd/ failed");
+ return;
+ }
+ while (entry = readdir(dir)) {
+ int fd = atoi(entry->d_name);
+ if (fd <= 2)
+ continue;
+ close(fd);
+ }
+ closedir(dir);
+ return;
+}
+
+int rshim_get_file_size(char *file)
+{
+ int size = 0;
+ FILE *f = fopen(file, "rb");
+ if (f == NULL) {
+ rshim_err("File:%s fopen failed.", file);
+ return -1;
+ }
+ fseek(f, 0, SEEK_END);
+ size = ftell(f);
+ fclose(f);
+ return size;
+}
+
+void rshim_reg_file_open(int fd_target, char *path, int perm, int offset)
+{
+ int fd = open(path, perm);
+ int fd2 = -1;
+ if (fd < 0) {
+ rshim_err("Open file:%s failed, fd:%d err:%s", path, fd, strerror(errno));
+ return;
+ }
+ if (fd != fd_target) {
+ fd2 = dup2(fd, fd_target);
+ if (fd2 != fd_target) {
+ rshim_err("Failed to open file:%s by fd:%d", path, fd_target);
+ close(fd2);
+ close(fd);
+ return;
+ }
+ close(fd);
+ }
+ int off = lseek(fd_target, offset, SEEK_SET);
+ if (off < 0) {
+ rshim_err("Failed to set offset:%d to file:%s, fd:%d, fd2:%d", offset, path, fd, fd2);
+ return;
+ }
+ rshim_log("Successed to set offset:%d to file:%s, fd:%d, fd2:%d", offset, path, fd, fd2);
+ return;
+}
+
+void rshim_reg_file_resume(const char * const json_buf)
+{
+ const cJSON *files;
+ const cJSON *file;
+ const cJSON *fd;
+ const cJSON *path;
+ const cJSON *perm;
+ const cJSON *offset;
+ int curfd = 3; // begin from 3
+ cJSON *fd_json = cJSON_Parse(json_buf);
+ if (fd_json == NULL)
+ {
+ const char *error_ptr = cJSON_GetErrorPtr();
+ if (error_ptr != NULL)
+ fprintf(stderr, "Error before: %s\n", error_ptr);
+ goto end;
+ }
+ files = cJSON_GetObjectItemCaseSensitive(fd_json, "Files");
+ cJSON_ArrayForEach(file, files) {
+ fd = cJSON_GetObjectItemCaseSensitive(file, "Fd");
+ path = cJSON_GetObjectItemCaseSensitive(file, "Path");
+ perm = cJSON_GetObjectItemCaseSensitive(file, "Perm");
+ offset = cJSON_GetObjectItemCaseSensitive(file, "Offset");
+ rshim_log("Get file from json fd:%d path:%s perm:%d offset:%d",
+ fd->valueint, path->valuestring, perm->valueint, offset->valueint);
+ rshim_reg_file_open(fd->valueint, path->valuestring, perm->valueint, offset->valueint);
+ }
+
+end:
+ cJSON_Delete(fd_json);
+ return;
+}
+
+void rshim_reg_file_sync(char *json_file)
+{
+#define RSHIM_JSON_SIZE_MAX 1024*1024*1024 // 限制为1M足够了
+ rshim_close_all_fd();
+ if (json_file == NULL)
+ return;
+
+ int json_size = rshim_get_file_size(json_file);
+ if (json_size < 0 || json_size > RSHIM_JSON_SIZE_MAX) {
+ rshim_err("Get json file:%s size failed, size:%d.", json_file, json_size);
+ return;
+ }
+ rshim_log("Get json file:%s size:%d", json_file, json_size);
+
+ char *json_buf = (char *)malloc(json_size + 1);
+ int json_len = 0;
+ if (json_buf == NULL) {
+ rshim_err("Malloc error.");
+ return;
+ }
+ memset(json_buf, 0, json_size + 1);
+ int json_fd = open(json_file, O_RDONLY);
+ if (json_fd < 0) {
+ rshim_err("Open json file:%s failed, err:%s", json_file, strerror(errno));
+ goto end;
+ }
+ json_len = read(json_fd, json_buf, json_size + 1);
+ if (json_len <= 0) {
+ rshim_err("Failed to read from json file:%s, ret:%d err:%s", json_file, json_len, strerror(errno));
+ close(json_fd);
+ goto end;
+ }
+ close(json_fd);
+ remove(json_file);
+ rshim_reg_file_resume((const char * const)json_buf);
+end:
+ free(json_buf);
+ return;
+}
+
+/*
+ param list:
+ 1) -f xxx.json binary param1 param2 ...
+ 2) binary param1 param2...
+*/
+int main(int argc, char *argv[])
+{
+ char *json_file = NULL;
+ char **newarg = NULL;
+
+ // 至少得有需要执行的二进制名称
+ if (argc < 2 || (strcmp(argv[1], "-f") == 0 && argc < 4)) {
+ rshim_err("Input argument list too short.");
+ return -1;
+ }
+
+ if (strcmp(argv[1], "-f") == 0) {
+ json_file = argv[2];
+ newarg = &argv[3];
+ } else {
+ newarg = &argv[1];
+ }
+
+ rshim_reg_file_sync(json_file);
+ execvp(newarg[0], newarg);
+ perror("execve failed.");
+
+ exit(EXIT_FAILURE);
+}
+
diff --git a/qtfs/rexec/server.go b/qtfs/rexec/server.go
index de3f6cf..32a91de 100644
--- a/qtfs/rexec/server.go
+++ b/qtfs/rexec/server.go
@@ -128,7 +128,16 @@ func main() {
}
return
}
- cmd := exec.Command(command.Cmd, command.Args...)
+
+ args := []string{}
+ fdFilePath := restoreFileInfo(command.Cmd, command.Files)
+ if fdFilePath != "" {
+ args = append(args, "-f", fdFilePath)
+ }
+ args = append(args, command.Cmd)
+ args = append(args, command.Args...)
+
+ cmd := exec.Command("/usr/bin/rexec_shim", args...)
cmd.Stdout = command.Stdout
cmd.Stderr = command.Stderr
cmd.Env = append([]string{}, command.Env...)
--
2.33.0
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