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StorageAPI: Return an error if memory allocation fails

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This commit is contained in:
Maschell 2023-01-24 14:07:20 +01:00
parent db01bb37b2
commit 8306df96ae
2 changed files with 50 additions and 5 deletions
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1
include/wups/storage.h
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@ -26,6 +26,7 @@ typedef enum {
WUPS_STORAGE_ERROR_IO = -8, WUPS_STORAGE_ERROR_IO = -8,
WUPS_STORAGE_ERROR_B64_DECODE_FAILED = -9, WUPS_STORAGE_ERROR_B64_DECODE_FAILED = -9,
WUPS_STORAGE_ERROR_BUFFER_TOO_SMALL = -10, WUPS_STORAGE_ERROR_BUFFER_TOO_SMALL = -10,
WUPS_STORAGE_ERROR_MALLOC_FAILED = -11,
} WUPSStorageError; } WUPSStorageError;
typedef struct wups_storage_item_t_ { typedef struct wups_storage_item_t_ {

46
libraries/libwups/storage.cpp
View File

@ -53,6 +53,8 @@ const char *WUPS_GetStorageStatusStr(WUPSStorageError status) {
return "WUPS_STORAGE_ERROR_B64_DECODE_FAILED"; return "WUPS_STORAGE_ERROR_B64_DECODE_FAILED";
case WUPS_STORAGE_ERROR_BUFFER_TOO_SMALL: case WUPS_STORAGE_ERROR_BUFFER_TOO_SMALL:
return "WUPS_STORAGE_ERROR_BUFFER_TOO_SMALL"; return "WUPS_STORAGE_ERROR_BUFFER_TOO_SMALL";
case WUPS_STORAGE_ERROR_MALLOC_FAILED:
return "WUPS_STORAGE_ERROR_MALLOC_FAILED";
} }
return "WUPS_STORAGE_ERROR_UNKNOWN"; return "WUPS_STORAGE_ERROR_UNKNOWN";
} }
@ -192,8 +194,13 @@ static wups_storage_item_t *addItem(wups_storage_item_t *parent, const char *key
if (item->pending_delete) { if (item->pending_delete) {
free(item->data); free(item->data);
free(item->key); free(item->key);
item->data = nullptr;
item->key = nullptr;
item->key = (char *) malloc(strlen(key) + 1); item->key = (char *) malloc(strlen(key) + 1);
if (item->key == nullptr) {
return nullptr;
}
strcpy(item->key, key); strcpy(item->key, key);
foundItem = item; foundItem = item;
@ -202,12 +209,22 @@ static wups_storage_item_t *addItem(wups_storage_item_t *parent, const char *key
} }
if (!foundItem) { if (!foundItem) {
auto *newPtr = (wups_storage_item_t *) realloc(parent->data, (parent->data_size + 1) * sizeof(wups_storage_item_t));
if (newPtr == nullptr) {
return nullptr;
}
parent->data = newPtr;
parent->data_size++; parent->data_size++;
parent->data = (wups_storage_item_t *) realloc(parent->data, parent->data_size * sizeof(wups_storage_item_t));
foundItem = &((wups_storage_item_t *) parent->data)[parent->data_size - 1]; foundItem = &((wups_storage_item_t *) parent->data)[parent->data_size - 1];
memset(foundItem, 0, sizeof(wups_storage_item_t));
foundItem->key = (char *) malloc(strlen(key) + 1); foundItem->key = (char *) malloc(strlen(key) + 1);
if (foundItem->key == nullptr) {
foundItem->pending_delete = true;
return nullptr;
}
strcpy(foundItem->key, key); strcpy(foundItem->key, key);
} }
@ -240,6 +257,9 @@ WUPSStorageError WUPS_CreateSubItem(wups_storage_item_t *parent, const char *key
isDirty = true; isDirty = true;
wups_storage_item_t *item = addItem(parent, key, WUPS_STORAGE_TYPE_ITEM); wups_storage_item_t *item = addItem(parent, key, WUPS_STORAGE_TYPE_ITEM);
if (item == nullptr) {
return WUPS_STORAGE_ERROR_MALLOC_FAILED;
}
*outItem = item; *outItem = item;
return WUPS_STORAGE_ERROR_SUCCESS; return WUPS_STORAGE_ERROR_SUCCESS;
@ -302,9 +322,17 @@ WUPSStorageError WUPS_StoreString(wups_storage_item_t *parent, const char *key,
isDirty = true; isDirty = true;
wups_storage_item_t *item = addItem(parent, key, WUPS_STORAGE_TYPE_STRING); wups_storage_item_t *item = addItem(parent, key, WUPS_STORAGE_TYPE_STRING);
if (item == nullptr) {
return WUPS_STORAGE_ERROR_MALLOC_FAILED;
}
uint32_t size = strlen(string) + 1; uint32_t size = strlen(string) + 1;
item->data = malloc(size); item->data = malloc(size);
if (item->data == nullptr) {
item->key = nullptr;
item->pending_delete = true;
return WUPS_STORAGE_ERROR_MALLOC_FAILED;
}
item->data_size = size; item->data_size = size;
strcpy((char *) item->data, string); strcpy((char *) item->data, string);
@ -337,8 +365,16 @@ WUPSStorageError WUPS_StoreInt(wups_storage_item_t *parent, const char *key, int
isDirty = true; isDirty = true;
wups_storage_item_t *item = addItem(parent, key, WUPS_STORAGE_TYPE_INT); wups_storage_item_t *item = addItem(parent, key, WUPS_STORAGE_TYPE_INT);
if (item == nullptr) {
return WUPS_STORAGE_ERROR_MALLOC_FAILED;
}
item->data = malloc(sizeof(int32_t)); item->data = malloc(sizeof(int32_t));
if (item->data == nullptr) {
item->key = nullptr;
item->pending_delete = true;
return WUPS_STORAGE_ERROR_MALLOC_FAILED;
}
item->data_size = sizeof(int32_t); item->data_size = sizeof(int32_t);
*(int32_t *) item->data = value; *(int32_t *) item->data = value;
@ -367,8 +403,16 @@ WUPSStorageError WUPS_StoreBinary(wups_storage_item_t *parent, const char *key,
isDirty = true; isDirty = true;
wups_storage_item_t *item = addItem(parent, key, WUPS_STORAGE_TYPE_STRING); wups_storage_item_t *item = addItem(parent, key, WUPS_STORAGE_TYPE_STRING);
if (item == nullptr) {
return WUPS_STORAGE_ERROR_MALLOC_FAILED;
}
item->data = b64_encode((const uint8_t *) data, size); item->data = b64_encode((const uint8_t *) data, size);
if (item->data == nullptr) {
item->key = nullptr;
item->pending_delete = true;
return WUPS_STORAGE_ERROR_MALLOC_FAILED;
}
item->data_size = strlen((char *) data) + 1; item->data_size = strlen((char *) data) + 1;
return WUPS_STORAGE_ERROR_SUCCESS; return WUPS_STORAGE_ERROR_SUCCESS;