| 标题 | VC++实现CAB压缩解压文件 |
| 内容 | C++实现CAB压缩解压文件 示例参考 // This is an ID which is written (invisible) into the CAB file UINT u32_CabID = 12345; // Store filetimes as UTC in CAB files BOOL b_StoreUtcTime = TRUE; // Change this to split the archive into multiple files (200000 --> CAB split size = 200kB) // ATTENTION: In this case Parameter 1 of CreateFCIContext MUST contain "%d" UINT u32_SplitSize = 0x7FFFFFFF; // You can specify your own key for CAB encryption here (the longer the more secure, up to 5000 characters) // Set empty EncryptionKey ("") to get a CAB file without encryption char* s8_EncryptionKey = ""; //char* s8_EncryptionKey = "AH%KJ/76?KJ逪謀\狞dghf7(ZTbjasdf82iz<sx87qpc5ba&m;-@^l#"; // ########################## Initialization ############################ char s8_WinDir[MAX_PATH]; GetWindowsDirectoryA(s8_WinDir, sizeof(s8_WinDir)); char s8_Explorer[MAX_PATH]; char s8_Notepad [MAX_PATH]; sprintf(s8_Explorer, "%s\\Explorer.exe", s8_WinDir); sprintf(s8_Notepad, "%s\\Notepad.exe", s8_WinDir); char s8_WorkDir[MAX_PATH]; GetCurrentDirectoryA(sizeof(s8_WorkDir), s8_WorkDir); char s8_CompressDir[MAX_PATH]; char s8_DecryptDir [MAX_PATH]; char s8_ExtractDir [MAX_PATH]; sprintf(s8_CompressDir, "%s\\_Compressed", s8_WorkDir); sprintf(s8_DecryptDir, "%s\\_Decrypted", s8_WorkDir); sprintf(s8_ExtractDir, "%s\\_Extracted", s8_WorkDir); char s8_CompressFile[MAX_PATH]; strcpy(s8_CompressFile, s8_CompressDir); strcat(s8_CompressFile, "\\Packed_%d.cab"); Cabinet::CCompress i_Compress; Cabinet::CExtract i_ExtrDecrypt; Cabinet::CExtractResource i_ExtrResource; i_Compress. SetEncryptionKeyA(s8_EncryptionKey); i_ExtrDecrypt.SetDecryptionKeyA(s8_EncryptionKey); #ifdef UNICODE printf("UNICODE compiled\n"); #else printf("MBCS compiled\n"); #endif // ########################## Compress demo ############################ // This will pack Explorer.exe and Notepad.exe into a CAB file with subfolders printf("\n CAB FILE COMPRESSION\n\n"); if (!i_Compress.CreateFCIContextA(s8_CompressFile, b_StoreUtcTime, u32_SplitSize, u32_CabID)) { printf("Compress ERROR: Could not create FCI context:\n%s\n", i_Compress.LastErrorA()); goto _RESOURCE; } if (!i_Compress.AddFileA(s8_Explorer, "FileManager\\Explorer.exe", 0)) { printf("Compress ERROR: Could not add Explorer.exe to cabinet:\n%s\n", i_Compress.LastErrorA()); goto _RESOURCE; } if (!i_Compress.AddFileA(s8_Notepad, "TextManager\\Notepad.exe", 0)) { printf("Compress ERROR: Could not add Notepad.exe to cabinet:\n%s\n", i_Compress.LastErrorA()); goto _RESOURCE; } if (!i_Compress.FlushCabinet(FALSE)) { printf("Compress ERROR: Could not flush Cabinet:\n%s\n", i_Compress.LastErrorA()); goto _RESOURCE; } printf("SUCCESS: Compressed Explorer.exe and Notepad.exe into cabinet in\n\"%s\"\n", s8_CompressDir); // ########################## Decrypt demo ############################ // This will decrypt the CAB file which was encrypted above if (!s8_EncryptionKey[0]) // Skip the following if the file was not encrypted goto _RESOURCE; printf("\n----------------------------------------------------------------\n"); printf("\n CAB FILE DECRYPTION\n\n"); if (!i_ExtrDecrypt.CreateFDIContext()) { printf("Decrypt ERROR: Could not create FDI context:\n%s\n", i_ExtrDecrypt.LastErrorA()); goto _RESOURCE; } // replace "%d" -> "1" sprintf(s8_CompressFile, s8_CompressFile, 1); // Now extract into subdirectory "_Decrypted" and the corresponding subdirectories in the CAB file if (!i_ExtrDecrypt.ExtractFileA(s8_CompressFile, s8_DecryptDir)) { printf("Decrypt ERROR: Not all files could be extracted:\n%s\n", i_ExtrDecrypt.LastErrorA()); goto _RESOURCE; } printf("SUCCESS: Decrypted all files from the above encrypted cabinet into\n\"%s\"\n", s8_DecryptDir); // ########################## Extract resource demo ############################ // This will extract the file "Test.cab" in the embedded resources into a directory _RESOURCE: printf("\n----------------------------------------------------------------\n"); printf("\n CAB RESOURCE EXTRACTION\n\n"); if (!i_ExtrResource.CreateFDIContext()) { printf("Extract ERROR: Could not create FDI context:\n%s\n", i_ExtrResource.LastErrorA()); goto _WAIT; } /* // Now extract into subdirectory "_Extracted" and the corresponding subdirectories in the CAB file if (!i_ExtrResource.ExtractResourceA(0, ID_CAB_TEST, "CABFILE", s8_ExtractDir)) { printf("Extract ERROR: Not all files could be extracted:\n%s\n", i_ExtrResource.LastErrorA()); goto _WAIT; }*/ printf("SUCCESS: Extracted all files from cabinet resource Test.cab into\n\"%s\"\n", s8_ExtractDir); _WAIT: // Under some cirumstances the DOS window disappears immediately, so you cannot read anything! printf("\n\nHit any key to exit\n"); getch(); |
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