(C) Find a ZIP Entry by Exact Path Using EntryOf

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This example demonstrates how to use the EntryOf method to find a ZIP entry whose stored path exactly matches a specified path.

Unlike EntryMatching, which performs wildcard matching, EntryOf performs an exact path lookup.

This method is useful when:

• The exact ZIP path is already known
• Retrieving a specific file or directory entry
• Verifying whether a particular entry exists in the ZIP archive

Suppose the ZIP archive contains:

docs/
docs/readme.txt
docs/manual.pdf
images/logo.png
data/config/settings.json

ZIP archives may optionally contain explicit directory entries such as docs/. These directory entries can also be retrieved using EntryOf.

The example:

• Finds an exact file entry
• Finds an exact directory entry
• Demonstrates the difference between file and directory entries

Note: This example requires Chilkat v11.0.0 or greater.

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

void ChilkatSample(void)
    {
    BOOL success;
    HCkZip zip;
    HCkZipEntry entry;

    success = FALSE;

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

    success = FALSE;

    // Open an existing ZIP archive.
    zip = CkZip_Create();

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

    entry = CkZipEntry_Create();

    // ------------------------------------------------------------
    // Find a specific file entry by its exact ZIP path.

    success = CkZip_EntryOf(zip,"docs/readme.txt",entry);

    if (success == TRUE) {
        printf("Found file entry:\n");
        printf("  FileName = %s\n",CkZipEntry_fileName(entry));
        printf("  IsDirectory = %d\n",CkZipEntry_getIsDirectory(entry));
        printf("\n");
    }

    // ------------------------------------------------------------
    // Find a directory entry.
    // 
    // ZIP archives may optionally contain explicit directory entries.
    // In this example, "docs/" is a separate directory entry.

    success = CkZip_EntryOf(zip,"docs/",entry);

    if (success == TRUE) {
        printf("Found directory entry:\n");
        printf("  FileName = %s\n",CkZipEntry_fileName(entry));
        printf("  IsDirectory = %d\n",CkZipEntry_getIsDirectory(entry));
        printf("\n");
    }

    // ------------------------------------------------------------
    // Attempt to find a non-existent entry.

    success = CkZip_EntryOf(zip,"images/missing.png",entry);

    if (success == FALSE) {
        printf("The entry images/missing.png was not found.\n");
    }

    CkZip_CloseZip(zip);

    printf("Done.\n");


    CkZip_Dispose(zip);
    CkZipEntry_Dispose(entry);

    }