cocos2dx加密解密资源

 1 unsigned char* CCFileUtils::getFileData(const char* pszFileName, const char* pszMode, unsigned long * pSize)
 2 {
 3     unsigned char * pBuffer = NULL;
 4     CCAssert(pszFileName != NULL && pSize != NULL && pszMode != NULL, "Invalid parameters.");
 5     *pSize = 0;
 6     do
 7     {
 8         // read the file from hardware
 9         std::string fullPath = fullPathForFilename(pszFileName);
10         FILE *fp = fopen(fullPath.c_str(), pszMode);
11         CC_BREAK_IF(!fp);
12         
13         fseek(fp,0,SEEK_END);
14         *pSize = ftell(fp);
15         fseek(fp,0,SEEK_SET);
16         pBuffer = new unsigned char[*pSize];
17         *pSize = fread(pBuffer,sizeof(unsigned char), *pSize,fp);
18 
19         decode(pBuffer, *pSize);    //在此调用解密函数
20         fclose(fp);
21     } while (0);
22     
23     if (! pBuffer)
24     {
25         std::string msg = "Get data from file(";
26         msg.append(pszFileName).append(") failed!");
27         
28         CCLOG("%s", msg.c_str());
29     }
30     return pBuffer;
31 }