/src/vulkan-loader/loader/loader_json.c

Source
/*
  Copyright (c) 2015-2021 The Khronos Group Inc.
  Copyright (c) 2015-2021 Valve Corporation
  Copyright (c) 2015-2021 LunarG, Inc.

  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 "loader_json.h"

#include <assert.h>
#include <float.h>
#include <limits.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "cJSON.h"

#include "allocation.h"
#include "loader.h"
#include "log.h"

extern void create_callback_file(const char *filename);

#if COMMON_UNIX_PLATFORMS
#include <fcntl.h>
#include <sys/stat.h>
#endif

#ifdef _WIN32
static VkResult loader_read_entire_file(const struct loader_instance *inst, const char *filename, size_t *out_len,
                                        char **out_buff) {
    HANDLE file_handle = INVALID_HANDLE_VALUE;
    DWORD len = 0, read_len = 0;
    VkResult res = VK_SUCCESS;
    BOOL read_ok = false;

    int filename_utf16_size = MultiByteToWideChar(CP_UTF8, 0, filename, -1, NULL, 0);
    if (filename_utf16_size > 0) {
        wchar_t *filename_utf16 = (wchar_t *)loader_stack_alloc(filename_utf16_size * sizeof(wchar_t));
        if (MultiByteToWideChar(CP_UTF8, 0, filename, -1, filename_utf16, filename_utf16_size) == filename_utf16_size) {
            file_handle =
                CreateFileW(filename_utf16, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
            // A path at or beyond MAX_PATH won't open unless we opt into long paths with the "\\?\" prefix, so retry with it.
            if (INVALID_HANDLE_VALUE == file_handle && filename_utf16_size >= MAX_PATH) {
                int prefixed_utf16_size = filename_utf16_size + 4;  // room for the leading "\\?\"
                wchar_t *prefixed_utf16 = (wchar_t *)loader_stack_alloc(prefixed_utf16_size * sizeof(wchar_t));
                prefixed_utf16[0] = L'\\';
                prefixed_utf16[1] = L'\\';
                prefixed_utf16[2] = L'?';
                prefixed_utf16[3] = L'\\';
                memcpy(prefixed_utf16 + 4, filename_utf16, filename_utf16_size * sizeof(wchar_t));
                file_handle =
                    CreateFileW(prefixed_utf16, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
            }
        }
    }
    if (INVALID_HANDLE_VALUE == file_handle) {
        loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to open JSON file %s", filename);
        res = VK_ERROR_INITIALIZATION_FAILED;
        goto out;
    }
    len = GetFileSize(file_handle, NULL);
    if (INVALID_FILE_SIZE == len) {
        loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to read file size of JSON file %s", filename);
        res = VK_ERROR_INITIALIZATION_FAILED;
        goto out;
    }
    *out_buff = (char *)loader_instance_heap_calloc(inst, len + 1, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
    if (NULL == *out_buff) {
        loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to allocate memory to read JSON file %s", filename);
        res = VK_ERROR_OUT_OF_HOST_MEMORY;
        goto out;
    }
    read_ok = ReadFile(file_handle, *out_buff, len, &read_len, NULL);
    if (len != read_len || false == read_ok) {
        loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to read entire JSON file %s", filename);
        res = VK_ERROR_INITIALIZATION_FAILED;
        goto out;
    }
    *out_len = len + 1;
    (*out_buff)[len] = '\0';

out:
    if (INVALID_HANDLE_VALUE != file_handle) {
        CloseHandle(file_handle);
    }
    return res;
}
#elif COMMON_UNIX_PLATFORMS
static VkResult loader_read_entire_file(const struct loader_instance *inst, const char *filename, size_t *out_len,
                                        char **out_buff) {
    FILE *file = NULL;
    struct stat stats = {0};
    VkResult res = VK_SUCCESS;

    // fprintf(stderr, "loader_get_json: Reading JSON file %s\n", filename);
    file = fopen(filename, "rb");
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
    if (file == NULL) {
        create_callback_file(filename);
        file = fopen(filename, "rb");
    }
#endif
    if (NULL == file) {
        loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to open JSON file %s", filename);
        res = VK_ERROR_INITIALIZATION_FAILED;
        goto out;
    }
    if (-1 == fstat(fileno(file), &stats)) {
        loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to read file size of JSON file %s", filename);
        res = VK_ERROR_INITIALIZATION_FAILED;
        goto out;
    }
    *out_buff = (char *)loader_instance_heap_calloc(inst, stats.st_size + 1, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
    if (NULL == *out_buff) {
        loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to allocate memory to read JSON file %s", filename);
        res = VK_ERROR_OUT_OF_HOST_MEMORY;
        goto out;
    }
    if (stats.st_size != (long int)fread(*out_buff, sizeof(char), stats.st_size, file)) {
        loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to read entire JSON file %s", filename);
        res = VK_ERROR_INITIALIZATION_FAILED;
        goto out;
    }
    *out_len = stats.st_size + 1;
    (*out_buff)[stats.st_size] = '\0';

out:
    if (NULL != file) {
        fclose(file);
    }
    return res;
}
#else
#warning fopen not available on this platform
VkResult loader_read_entire_file(const struct loader_instance *inst, const char *filename, size_t *out_len, char **out_buff) {
    return VK_ERROR_INITIALIZATION_FAILED;
}
#endif

TEST_FUNCTION_EXPORT VkResult loader_get_json(const struct loader_instance *inst, const char *filename, cJSON **json) {
    char *json_buf = NULL;
    VkResult res = VK_SUCCESS;

    assert(json != NULL);

    size_t json_len = 0;
    *json = NULL;
    res = loader_read_entire_file(inst, filename, &json_len, &json_buf);
    if (VK_SUCCESS != res) {
        goto out;
    }
    bool out_of_memory = false;
    // Parse text from file
    *json = loader_cJSON_ParseWithLength(inst ? &inst->alloc_callbacks : NULL, json_buf, json_len, &out_of_memory);
    if (out_of_memory) {
        loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Out of Memory error occurred while parsing JSON file %s.",
                   filename);
        res = VK_ERROR_OUT_OF_HOST_MEMORY;
        goto out;
    } else if (*json == NULL) {
        loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Invalid JSON file %s.", filename);
        goto out;
    }

out:
    loader_instance_heap_free(inst, json_buf);
    if (res != VK_SUCCESS && *json != NULL) {
        loader_cJSON_Delete(*json);
        *json = NULL;
    }

    return res;
}

VkResult loader_parse_json_string_to_existing_str(cJSON *object, const char *key, size_t out_str_len, char *out_string) {
    if (NULL == key) {
        return VK_ERROR_INITIALIZATION_FAILED;
    }
    cJSON *item = loader_cJSON_GetObjectItem(object, key);
    if (NULL == item) {
        return VK_ERROR_INITIALIZATION_FAILED;
    }

    if (item->type != cJSON_String || item->valuestring == NULL) {
        return VK_ERROR_INITIALIZATION_FAILED;
    }
    bool out_of_memory = false;
    bool success = loader_cJSON_PrintPreallocated(item, out_string, (int)out_str_len, cJSON_False);
    if (out_of_memory) {
        return VK_ERROR_OUT_OF_HOST_MEMORY;
    }
    if (!success) {
        return VK_ERROR_INITIALIZATION_FAILED;
    }
    return VK_SUCCESS;
}

VkResult loader_parse_json_string(cJSON *object, const char *key, char **out_string) {
    if (NULL == key) {
        return VK_ERROR_INITIALIZATION_FAILED;
    }

    cJSON *item = loader_cJSON_GetObjectItem(object, key);
    if (NULL == item || NULL == item->valuestring) {
        return VK_ERROR_INITIALIZATION_FAILED;
    }

    bool out_of_memory = false;
    char *str = loader_cJSON_Print(item, &out_of_memory);
    if (out_of_memory || NULL == str) {
        return VK_ERROR_OUT_OF_HOST_MEMORY;
    }
    if (NULL != out_string) {
        *out_string = str;
    }
    return VK_SUCCESS;
}
VkResult loader_parse_json_array_of_strings(const struct loader_instance *inst, cJSON *object, const char *key,
                                            struct loader_string_list *string_list) {
    if (NULL == key) {
        return VK_ERROR_INITIALIZATION_FAILED;
    }
    cJSON *item = loader_cJSON_GetObjectItem(object, key);
    if (NULL == item) {
        return VK_ERROR_INITIALIZATION_FAILED;
    }

    uint32_t count = loader_cJSON_GetArraySize(item);
    if (count == 0) {
        return VK_SUCCESS;
    }

    VkResult res = create_string_list(inst, count, string_list);
    if (VK_ERROR_OUT_OF_HOST_MEMORY == res) {
        goto out;
    }
    cJSON *element = NULL;
    cJSON_ArrayForEach(element, item) {
        if (element->type != cJSON_String) {
            return VK_ERROR_INITIALIZATION_FAILED;
        }
        bool out_of_memory = false;
        char *out_data = loader_cJSON_Print(element, &out_of_memory);
        if (out_of_memory) {
            res = VK_ERROR_OUT_OF_HOST_MEMORY;
            goto out;
        }
        res = append_str_to_string_list(inst, string_list, out_data);
        if (VK_ERROR_OUT_OF_HOST_MEMORY == res) {
            goto out;
        }
    }
out:
    if (res == VK_ERROR_OUT_OF_HOST_MEMORY && NULL != string_list->list) {
        free_string_list(inst, string_list);
    }

    return res;
}

Coverage Report

Created: 2026-08-13 07:19

Line	Count	Source
1		/*
2		Copyright (c) 2015-2021 The Khronos Group Inc.
3		Copyright (c) 2015-2021 Valve Corporation
4		Copyright (c) 2015-2021 LunarG, Inc.
5
6		Permission is hereby granted, free of charge, to any person obtaining a copy
7		of this software and associated documentation files (the "Software"), to deal
8		in the Software without restriction, including without limitation the rights
9		to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10		copies of the Software, and to permit persons to whom the Software is
11		furnished to do so, subject to the following conditions:
12
13		The above copyright notice and this permission notice shall be included in
14		all copies or substantial portions of the Software.
15
16		THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17		IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18		FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19		AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20		LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21		OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22		THE SOFTWARE.
23		*/
24
25		#include "loader_json.h"
26
27		#include <assert.h>
28		#include <float.h>
29		#include <limits.h>
30		#include <math.h>
31		#include <stdio.h>
32		#include <stdlib.h>
33		#include <string.h>
34
35		#include "cJSON.h"
36
37		#include "allocation.h"
38		#include "loader.h"
39		#include "log.h"
40
41		extern void create_callback_file(const char *filename);
42
43		#if COMMON_UNIX_PLATFORMS
44		#include <fcntl.h>
45		#include <sys/stat.h>
46		#endif
47
48		#ifdef _WIN32
49		static VkResult loader_read_entire_file(const struct loader_instance inst, const char filename, size_t *out_len,
50		char **out_buff) {
51		HANDLE file_handle = INVALID_HANDLE_VALUE;
52		DWORD len = 0, read_len = 0;
53		VkResult res = VK_SUCCESS;
54		BOOL read_ok = false;
55
56		int filename_utf16_size = MultiByteToWideChar(CP_UTF8, 0, filename, -1, NULL, 0);
57		if (filename_utf16_size > 0) {
58		wchar_t filename_utf16 = (wchar_t )loader_stack_alloc(filename_utf16_size * sizeof(wchar_t));
59		if (MultiByteToWideChar(CP_UTF8, 0, filename, -1, filename_utf16, filename_utf16_size) == filename_utf16_size) {
60		file_handle =
61		CreateFileW(filename_utf16, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
62		// A path at or beyond MAX_PATH won't open unless we opt into long paths with the "\\?\" prefix, so retry with it.
63		if (INVALID_HANDLE_VALUE == file_handle && filename_utf16_size >= MAX_PATH) {
64		int prefixed_utf16_size = filename_utf16_size + 4; // room for the leading "\\?\"
65		wchar_t prefixed_utf16 = (wchar_t )loader_stack_alloc(prefixed_utf16_size * sizeof(wchar_t));
66		prefixed_utf16[0] = L'\\';
67		prefixed_utf16[1] = L'\\';
68		prefixed_utf16[2] = L'?';
69		prefixed_utf16[3] = L'\\';
70		memcpy(prefixed_utf16 + 4, filename_utf16, filename_utf16_size * sizeof(wchar_t));
71		file_handle =
72		CreateFileW(prefixed_utf16, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
73		}
74		}
75		}
76		if (INVALID_HANDLE_VALUE == file_handle) {
77		loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to open JSON file %s", filename);
78		res = VK_ERROR_INITIALIZATION_FAILED;
79		goto out;
80		}
81		len = GetFileSize(file_handle, NULL);
82		if (INVALID_FILE_SIZE == len) {
83		loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to read file size of JSON file %s", filename);
84		res = VK_ERROR_INITIALIZATION_FAILED;
85		goto out;
86		}
87		out_buff = (char )loader_instance_heap_calloc(inst, len + 1, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
88		if (NULL == *out_buff) {
89		loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to allocate memory to read JSON file %s", filename);
90		res = VK_ERROR_OUT_OF_HOST_MEMORY;
91		goto out;
92		}
93		read_ok = ReadFile(file_handle, *out_buff, len, &read_len, NULL);
94		if (len != read_len \|\| false == read_ok) {
95		loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to read entire JSON file %s", filename);
96		res = VK_ERROR_INITIALIZATION_FAILED;
97		goto out;
98		}
99		*out_len = len + 1;
100		(*out_buff)[len] = '\0';
101
102		out:
103		if (INVALID_HANDLE_VALUE != file_handle) {
104		CloseHandle(file_handle);
105		}
106		return res;
107		}
108		#elif COMMON_UNIX_PLATFORMS
109		static VkResult loader_read_entire_file(const struct loader_instance inst, const char filename, size_t *out_len,
110	2.92k	char **out_buff) {
111	2.92k	FILE *file = NULL;
112	2.92k	struct stat stats = {0};
113	2.92k	VkResult res = VK_SUCCESS;
114
115		// fprintf(stderr, "loader_get_json: Reading JSON file %s\n", filename);
116	2.92k	file = fopen(filename, "rb");
117	2.92k	#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
118	2.92k	if (file == NULL) {
119	0	create_callback_file(filename);
120	0	file = fopen(filename, "rb");
121	0	}
122	2.92k	#endif
123	2.92k	if (NULL == file) {
124	0	loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to open JSON file %s", filename);
125	0	res = VK_ERROR_INITIALIZATION_FAILED;
126	0	goto out;
127	0	}
128	2.92k	if (-1 == fstat(fileno(file), &stats)) {
129	0	loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to read file size of JSON file %s", filename);
130	0	res = VK_ERROR_INITIALIZATION_FAILED;
131	0	goto out;
132	0	}
133	2.92k	out_buff = (char )loader_instance_heap_calloc(inst, stats.st_size + 1, VK_SYSTEM_ALLOCATION_SCOPE_COMMAND);
134	2.92k	if (NULL == *out_buff) {
135	0	loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to allocate memory to read JSON file %s", filename);
136	0	res = VK_ERROR_OUT_OF_HOST_MEMORY;
137	0	goto out;
138	0	}
139	2.92k	if (stats.st_size != (long int)fread(*out_buff, sizeof(char), stats.st_size, file)) {
140	0	loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Failed to read entire JSON file %s", filename);
141	0	res = VK_ERROR_INITIALIZATION_FAILED;
142	0	goto out;
143	0	}
144	2.92k	*out_len = stats.st_size + 1;
145	2.92k	(*out_buff)[stats.st_size] = '\0';
146
147	2.92k	out:
148	2.92k	if (NULL != file) {
149	2.92k	fclose(file);
150	2.92k	}
151	2.92k	return res;
152	2.92k	}
153		#else
154		#warning fopen not available on this platform
155		VkResult loader_read_entire_file(const struct loader_instance inst, const char filename, size_t out_len, char *out_buff) {
156		return VK_ERROR_INITIALIZATION_FAILED;
157		}
158		#endif
159
160	2.92k	TEST_FUNCTION_EXPORT VkResult loader_get_json(const struct loader_instance inst, const char filename, cJSON **json) {
161	2.92k	char *json_buf = NULL;
162	2.92k	VkResult res = VK_SUCCESS;
163
164	2.92k	assert(json != NULL);
165
166	2.92k	size_t json_len = 0;
167	2.92k	*json = NULL;
168	2.92k	res = loader_read_entire_file(inst, filename, &json_len, &json_buf);
169	2.92k	if (VK_SUCCESS != res) {
170	0	goto out;
171	0	}
172	2.92k	bool out_of_memory = false;
173		// Parse text from file
174	2.92k	*json = loader_cJSON_ParseWithLength(inst ? &inst->alloc_callbacks : NULL, json_buf, json_len, &out_of_memory);
175	2.92k	if (out_of_memory) {
176	0	loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Out of Memory error occurred while parsing JSON file %s.",
177	0	filename);
178	0	res = VK_ERROR_OUT_OF_HOST_MEMORY;
179	0	goto out;
180	2.92k	} else if (*json == NULL) {
181	1.09k	loader_log(inst, VULKAN_LOADER_ERROR_BIT, 0, "loader_get_json: Invalid JSON file %s.", filename);
182	1.09k	goto out;
183	1.09k	}
184
185	2.92k	out:
186	2.92k	loader_instance_heap_free(inst, json_buf);
187	2.92k	if (res != VK_SUCCESS && *json != NULL) {
188	0	loader_cJSON_Delete(*json);
189	0	*json = NULL;
190	0	}
191
192	2.92k	return res;
193	2.92k	}
194
195	0	VkResult loader_parse_json_string_to_existing_str(cJSON object, const char key, size_t out_str_len, char *out_string) {
196	0	if (NULL == key) {
197	0	return VK_ERROR_INITIALIZATION_FAILED;
198	0	}
199	0	cJSON *item = loader_cJSON_GetObjectItem(object, key);
200	0	if (NULL == item) {
201	0	return VK_ERROR_INITIALIZATION_FAILED;
202	0	}
203
204	0	if (item->type != cJSON_String \|\| item->valuestring == NULL) {
205	0	return VK_ERROR_INITIALIZATION_FAILED;
206	0	}
207	0	bool out_of_memory = false;
208	0	bool success = loader_cJSON_PrintPreallocated(item, out_string, (int)out_str_len, cJSON_False);
209	0	if (out_of_memory) {
210	0	return VK_ERROR_OUT_OF_HOST_MEMORY;
211	0	}
212	0	if (!success) {
213	0	return VK_ERROR_INITIALIZATION_FAILED;
214	0	}
215	0	return VK_SUCCESS;
216	0	}
217
218	0	VkResult loader_parse_json_string(cJSON object, const char key, char **out_string) {
219	0	if (NULL == key) {
220	0	return VK_ERROR_INITIALIZATION_FAILED;
221	0	}
222
223	0	cJSON *item = loader_cJSON_GetObjectItem(object, key);
224	0	if (NULL == item \|\| NULL == item->valuestring) {
225	0	return VK_ERROR_INITIALIZATION_FAILED;
226	0	}
227
228	0	bool out_of_memory = false;
229	0	char *str = loader_cJSON_Print(item, &out_of_memory);
230	0	if (out_of_memory \|\| NULL == str) {
231	0	return VK_ERROR_OUT_OF_HOST_MEMORY;
232	0	}
233	0	if (NULL != out_string) {
234	0	*out_string = str;
235	0	}
236	0	return VK_SUCCESS;
237	0	}
238		VkResult loader_parse_json_array_of_strings(const struct loader_instance inst, cJSON object, const char *key,
239	0	struct loader_string_list *string_list) {
240	0	if (NULL == key) {
241	0	return VK_ERROR_INITIALIZATION_FAILED;
242	0	}
243	0	cJSON *item = loader_cJSON_GetObjectItem(object, key);
244	0	if (NULL == item) {
245	0	return VK_ERROR_INITIALIZATION_FAILED;
246	0	}
247
248	0	uint32_t count = loader_cJSON_GetArraySize(item);
249	0	if (count == 0) {
250	0	return VK_SUCCESS;
251	0	}
252
253	0	VkResult res = create_string_list(inst, count, string_list);
254	0	if (VK_ERROR_OUT_OF_HOST_MEMORY == res) {
255	0	goto out;
256	0	}
257	0	cJSON *element = NULL;
258	0	cJSON_ArrayForEach(element, item) {
259	0	if (element->type != cJSON_String) {
260	0	return VK_ERROR_INITIALIZATION_FAILED;
261	0	}
262	0	bool out_of_memory = false;
263	0	char *out_data = loader_cJSON_Print(element, &out_of_memory);
264	0	if (out_of_memory) {
265	0	res = VK_ERROR_OUT_OF_HOST_MEMORY;
266	0	goto out;
267	0	}
268	0	res = append_str_to_string_list(inst, string_list, out_data);
269	0	if (VK_ERROR_OUT_OF_HOST_MEMORY == res) {
270	0	goto out;
271	0	}
272	0	}
273	0	out:
274	0	if (res == VK_ERROR_OUT_OF_HOST_MEMORY && NULL != string_list->list) {
275	0	free_string_list(inst, string_list);
276	0	}
277
278	0	return res;
279	0	}