C

Unzip Encrypted Text into a String Variable

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Demonstrates how to open an encrypted .zip archive and unzip a text file directly into a string variable. C

#include <C_CkZip.h>
#include <C_CkZipEntry.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkZip zip;
    HCkZipEntry entry;
    int lineEndingBehavior;
    const char *srcCharset;
    const char *strCsv;

    success = FALSE;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    zip = CkZip_Create();

    // Set the password required for decrypting.
    CkZip_putDecryptPassword(zip,"myPassword");

    success = CkZip_OpenZip(zip,"encrypted.zip");
    if (success == FALSE) {
        printf("%s\n",CkZip_lastErrorText(zip));
        CkZip_Dispose(zip);
        return;
    }

    // Locate the file within the Zip to be unzipped into a string variable:
    entry = CkZipEntry_Create();
    success = CkZip_EntryMatching(zip,"*.csv",entry);
    if (success == FALSE) {
        printf("%s\n",CkZip_lastErrorText(zip));
        CkZip_Dispose(zip);
        CkZipEntry_Dispose(entry);
        return;
    }

    // lineEndingBehavior:
    // 0 = leave unchanged.
    // 1 = convert all to bare LF's
    // 2 = convert all to CRLF's
    lineEndingBehavior = 0;
    srcCharset = "utf-8";

    strCsv = CkZipEntry_unzipToString(entry,lineEndingBehavior,srcCharset);
    printf("%s\n",strCsv);


    CkZip_Dispose(zip);
    CkZipEntry_Dispose(entry);

    }