List Files in a .zip

How to list files within a .zip

Download: Chilkat Cocoa Objective-C Libraries

NSMutableString *strOutput = [NSMutableString stringWithCapacity:1000];

CkoZip *zip = [[[CkoZip alloc] init] autorelease];

BOOL success;

//  Any string unlocks the component for the 1st 30-days.
success = [zip UnlockComponent: @"30-day trial"];
if (success != YES) {
    [strOutput appendString: zip.LastErrorText];
    [strOutput appendString: @"\n"];
    self.mainTextField.stringValue = strOutput;
    return;
}

success = [zip OpenZip: @"a.zip"];
if (success != YES) {
    [strOutput appendString: zip.LastErrorText];
    [strOutput appendString: @"\n"];
    self.mainTextField.stringValue = strOutput;
    return;
}

int n;

//  Get the number of files and directories in the .zip
n = [zip.NumEntries intValue];
[strOutput appendString:[NSString stringWithFormat: @"%d\n",n]];

CkoZipEntry *entry;

int i;
for (i = 0; i <= n - 1; i++) {

    entry = [zip GetEntryByIndex: [NSNumber numberWithInt: i]];
    if (entry.IsDirectory == NO) {
        //  (the filename may include a path)
        [strOutput appendString: entry.FileName];
        [strOutput appendString: @"\n"];
    }

}


self.mainTextField.stringValue = strOutput;