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(Unicode C) Unzip an AES Encrypted Text File directly into a String VariableA common need is to unzip from an AES encrypted Zip archive directly into a string variable, such that the unencrypted file never resides on disk, even temporarily. This example shows how to do it. Note: This example requires Chilkat v11.0.0 or greater.
#include <C_CkZipW.h> #include <C_CkZipEntryW.h> void ChilkatSample(void) { BOOL success; HCkZipW zip; HCkZipEntryW entry; int lineEndingBehavior; const wchar_t *srcCharset; const wchar_t *xmlText; success = FALSE; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. zip = CkZipW_Create(); // This example opens a WinZip-compatible AES encrypted // .zip that contains a single file: hamlet.xml. // It decrypts and unzips hamlet.xml directly into a string // variable. CkZipW_SetPassword(zip,L"secret"); success = CkZipW_OpenZip(zip,L"qa_data/hamlet.zip"); if (success == FALSE) { wprintf(L"%s\n",CkZipW_lastErrorText(zip)); CkZipW_Dispose(zip); return; } entry = CkZipEntryW_Create(); success = CkZipW_EntryOf(zip,L"hamlet.xml",entry); if (success == FALSE) { wprintf(L"%s\n",CkZipW_lastErrorText(zip)); CkZipW_Dispose(zip); CkZipEntryW_Dispose(entry); return; } // lineEndingBehavior: // 0 = leave unchanged. // 1 = convert all to bare LF's // 2 = convert all to CRLF's lineEndingBehavior = 0; srcCharset = L"utf-8"; xmlText = CkZipEntryW_unzipToString(entry,lineEndingBehavior,srcCharset); wprintf(L"%s\n",xmlText); CkZipW_Dispose(zip); CkZipEntryW_Dispose(entry); } |
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