Description:
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I corrupted a file using a hex editor.
"echo shell_exec('unzip -t file')" shows the CRC32 mismatch.

ZipArchive::extractTo() doesn't report CRC32 errors.

Reading a stream received from ZipArchive::getStream('myfile') echoes a CRC error if the number of bytes read with one fread() is below 2157 bytes.


Test script:
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$zip = new ZipArchive();
if ($zip->open('test.zip')) {
  zip->extractTo('mydir'); //no error printed

  $fp = $z->getStream('brokenfile');
  while (!feof($fp)) {
    $buf .= fread($fp, 2048+108); //CRC error printed
  }
  $fclose($fp);

  $fp = $z->getStream('brokenfile');
  while (!feof($fp)) {
    $buf .= fread($fp, 2048+109); //CRC error NOT printed
  }
  $fclose($fp);

  zip.close()
}

Expected result:
----------------
A CRC32 error report that can be handled.

The one from "fread($fp, 2048+108)" is fine: "Warning: fread() [function.fread]: Zip stream error: CRC error in ..." (can be handled with "ob_get_contents()");

For "ZipArchive::extractTo()" the corrupt file(s) should be printed.

Actual result:
--------------
CRC32 errors are reported always.