C++ (Cpp) writeImg3Element Examples

Example #1

File: img3.c Project: nlog2n/xpwntool-lite

void closeImg3(AbstractFile* file) {
	Img3Info* info = (Img3Info*) file->data;

	if(info->dirty) {
		if(info->encrypted) {
			uint32_t sz = info->data->header->dataSize;
			if (info->decryptLast) {
				sz = info->data->header->size;
			}
			uint8_t ivec[16];
			memcpy(ivec, info->iv, 16);
			AES_cbc_encrypt(info->data->data, info->data->data, (sz / 16) * 16, &(info->encryptKey), ivec, AES_ENCRYPT);
		}

		info->file->seek(info->file, 0);
		info->root->header->dataSize = 0;	/* hack to make certain writeImg3Element doesn't preallocate */
		info->root->header->size = 0;
		writeImg3Element(info->file, info->root, info);
	}

	info->root->free(info->root);
	info->file->close(info->file);
	free(info);
	free(file);
}

Example #2

File: img3.c Project: 0x76/opensn0w

void writeImg3Root(AbstractFile * file, Img3Element * element, Img3Info * info)
{
	AppleImg3RootHeader *header;
	Img3Element *current;
	off_t curPos;

	curPos = file->tell(file);
	curPos -= sizeof(AppleImg3Header);

	file->seek(file, curPos + sizeof(AppleImg3RootHeader));

	header = (AppleImg3RootHeader *) element->header;

	current = (Img3Element *) element->data;
	while (current != NULL) {
		if (current->header->magic == IMG3_SHSH_MAGIC) {
			header->extra.shshOffset =
			    (uint32_t) (file->tell(file) -
					sizeof(AppleImg3RootHeader));
		}

		if (current->header->magic != IMG3_KBAG_MAGIC
		    || info->encrypted) {
			writeImg3Element(file, current, info);
		}

		current = current->next;
	}

	header->base.dataSize =
	    file->tell(file) - (curPos + sizeof(AppleImg3RootHeader));
	header->base.size = sizeof(AppleImg3RootHeader) + header->base.dataSize;

	file->seek(file, curPos);

	flipAppleImg3Header(&(header->base));
	flipAppleImg3RootExtra(&(header->extra));
	file->write(file, header, sizeof(AppleImg3RootHeader));
	flipAppleImg3RootExtra(&(header->extra));
	flipAppleImg3Header(&(header->base));

	file->seek(file, header->base.size);
}

Example #3

File: img3.c Project: 0x76/opensn0w

void closeImg3(AbstractFile * file)
{
	uint8_t ivec[16];
	Img3Info *info = (Img3Info *) file->data;

	if (info->dirty) {
		if (info->encrypted) {
			uint32_t sz = info->data->header->dataSize;
			if (info->decryptLast) {
				sz = info->data->header->size;
			}
			
			memcpy(ivec, info->iv, 16);
			AES_cbc_encrypt(info->data->data, info->data->data,
					(sz / 16) * 16, &(info->encryptKey),
					ivec, AES_ENCRYPT);
		}

		if (info->exploit24k) {
			info->replaceDWord = *((uint32_t *) info->data->data);
			FLIPENDIANLE(info->replaceDWord);
			*((uint32_t *) info->data->data) = 0x22023001;
			flipEndianLE(info->data->data, 4);
		}

		if (info->exploitN8824k) {
			info->replaceDWord = *((uint32_t *) info->data->data);
			FLIPENDIANLE(info->replaceDWord);
			*((uint32_t *) info->data->data) = 0x84023001;
			flipEndianLE(info->data->data, 4);
		}

		info->file->seek(info->file, 0);
		info->root->header->dataSize = 0;	/* hack to make certain writeImg3Element doesn't preallocate */
		info->root->header->size = 0;
		writeImg3Element(info->file, info->root, info);
	}

	info->root->free(info->root);
	info->file->close(info->file);
	free(info);
	free(file);
}