feat(cJSON): Update cJSON library to V1.7.6

Source: https://github.com/DaveGamble/cJSON.git

components/cjson/cJSON/fuzzing/afl.c

@@ -0,0 +1,176 @@
+/*
+  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.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../cJSON.h"
+
+static char *read_file(const char *filename)
+{
+    FILE *file = NULL;
+    long length = 0;
+    char *content = NULL;
+    size_t read_chars = 0;
+
+    /* open in read binary mode */
+    file = fopen(filename, "rb");
+    if (file == NULL)
+    {
+        goto cleanup;
+    }
+
+    /* get the length */
+    if (fseek(file, 0, SEEK_END) != 0)
+    {
+        goto cleanup;
+    }
+    length = ftell(file);
+    if (length < 0)
+    {
+        goto cleanup;
+    }
+    if (fseek(file, 0, SEEK_SET) != 0)
+    {
+        goto cleanup;
+    }
+
+    /* allocate content buffer */
+    content = (char*)malloc((size_t)length + sizeof(""));
+    if (content == NULL)
+    {
+        goto cleanup;
+    }
+
+    /* read the file into memory */
+    read_chars = fread(content, sizeof(char), (size_t)length, file);
+    if ((long)read_chars != length)
+    {
+        free(content);
+        content = NULL;
+        goto cleanup;
+    }
+    content[read_chars] = '\0';
+
+
+cleanup:
+    if (file != NULL)
+    {
+        fclose(file);
+    }
+
+    return content;
+}
+
+int main(int argc, char** argv)
+{
+    const char *filename = NULL;
+    cJSON *item = NULL;
+    char *json = NULL;
+    int status = EXIT_FAILURE;
+    char *printed_json = NULL;
+
+    if ((argc < 2) || (argc > 3))
+    {
+        printf("Usage:\n");
+        printf("%s input_file [enable_printing]\n", argv[0]);
+        printf("\t input_file: file containing the test data\n");
+        printf("\t enable_printing: print after parsing, 'yes' or 'no', defaults to 'no'\n");
+        goto cleanup;
+    }
+
+    filename = argv[1];
+
+#if __AFL_HAVE_MANUAL_CONTROL
+    while (__AFL_LOOP(1000))
+    {
+#endif
+    status = EXIT_SUCCESS;
+
+    json = read_file(filename);
+    if ((json == NULL) || (json[0] == '\0') || (json[1] == '\0'))
+    {
+        status = EXIT_FAILURE;
+        goto cleanup;
+    }
+    item = cJSON_Parse(json + 2);
+    if (item == NULL)
+    {
+        goto cleanup;
+    }
+
+    if ((argc == 3) && (strncmp(argv[2], "yes", 3) == 0))
+    {
+        int do_format = 0;
+        if (json[1] == 'f')
+        {
+            do_format = 1;
+        }
+
+        if (json[0] == 'b')
+        {
+            /* buffered printing */
+            printed_json = cJSON_PrintBuffered(item, 1, do_format);
+        }
+        else
+        {
+            /* unbuffered printing */
+            if (do_format)
+            {
+                printed_json = cJSON_Print(item);
+            }
+            else
+            {
+                printed_json = cJSON_PrintUnformatted(item);
+            }
+        }
+        if (printed_json == NULL)
+        {
+            status = EXIT_FAILURE;
+            goto cleanup;
+        }
+        printf("%s\n", printed_json);
+    }
+
+cleanup:
+    if (item != NULL)
+    {
+        cJSON_Delete(item);
+        item = NULL;
+    }
+    if (json != NULL)
+    {
+        free(json);
+        json = NULL;
+    }
+    if (printed_json != NULL)
+    {
+        free(printed_json);
+        printed_json = NULL;
+    }
+#if __AFL_HAVE_MANUAL_CONTROL
+    }
+#endif
+
+    return status;
+}