Incorrect downloading binary files from FTP
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Key: NET-176
URL: https://issues.apache.org/jira/browse/NET-176
Project: Commons Net
Issue Type: Bug
Affects Versions: 1.4
Environment: WinXP SP2, JDK 1.5, Commons.Net 1.4.
Remote FTP Server (ProFTPd, Linux).
Reporter: Dmitriy Komarov
When I am trying to download some archive files (.zip), they are stored
sometimes on my PC wrong (damaged).
Works _always_ good with Gene6 FTP Server (local) on WinXP SP2.
Works _always_ bad with ProFTPd (remote!!!) on Linux.
Example of code, based on Commons.Net:
FTPClient c = new FTPClient();
c.connect(host);
c.enterRemotePassiveMode();
c.setFileType(FTP.BINARY_FILE_TYPE);
c.login(user, pass);
c.changeWorkingDirectory(dir);
FileOutputStream fos = new FileOutputStream(outFile);
c.retrieveFile(fileName, fos);
fos.close();
c.disconnect();
Example of code, successfuly working (not based on Commons.Net, just standart
JDK modules):
URL ur = new URL("ftp://"; + user+ ":" + pass + "@" + host + "/" + dir + "/" +
fileName);
URLConnection urlc = ur.openConnection();
BufferedInputStream bis = new BufferedInputStream(urlc.getInputStream());
BufferedOutputStream bos = new BufferedOutputStream(new
FileOutputStream(outFile));
int by;
while ((by = bis.read()) != -1)
bos.write(by);
bis.close();
bos.close();
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