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Unzip Encrypted Text into a String VariableDemonstrates how to open an encrypted .zip archive and unzip a text file directly into a string variable.
#include <C_CkZip.h> #include <C_CkZipEntry.h> void ChilkatSample(void) { HCkZip zip; BOOL success; HCkZipEntry entry; const char * strCsv; zip = CkZip_Create(); // Any string unlocks the component for the 1st 30-days. success = CkZip_UnlockComponent(zip,"Anything for 30-day trial"); if (success != TRUE) { printf("%s\n",CkZip_lastErrorText(zip)); return; } // Set the password required for decrypting. CkZip_putDecryptPassword(zip,"myPassword"); success = CkZip_OpenZip(zip,"encrypted.zip"); if (success != TRUE) { printf("%s\n",CkZip_lastErrorText(zip)); return; } // Locate the file within the Zip to be unzipped into a string variable: entry = CkZip_FirstMatchingEntry(zip,"*.csv"); if (!(entry == 0 )) { // There are a few different InflateToString methods. // InflateToString allows you to control line-endings LF-only vs. CRLF // InflateToString2 returns the line-endings unmodified. // Both InflateToString and InflateToString2 assume the // data consists of ANSI characters. // The InflateToString3 method allows for text stored in different // character encodings to be returned as a string // This example uses InflateToString2 -- line endings are // unmodified and the text is simple ANSI... strCsv = CkZipEntry_inflateToString2(entry); printf("%s\n",strCsv); CkZipEntry_Dispose(entry); } else { printf("No matching entry found!\n"); } CkZip_Dispose(zip); } |
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