[jira] Updated: (NET-148) Relaxed condition in __getReply causes other failures.
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https://issues.apache.org/jira/browse/NET-148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rory Winston updated NET-148:
-
Fix Version/s: 2.0
> Relaxed condition in __getReply causes other failures.
> --
>
> Key: NET-148
> URL: https://issues.apache.org/jira/browse/NET-148
> Project: Commons Net
> Issue Type: Bug
>Affects Versions: 1.4, Nightly Builds
>Reporter: Matthew Simoneau
> Assigned To: Rory Winston
> Fix For: 2.0
>
>
> In FTP.java's __getReply() method, this do/while loop reads multi-line
> responses from the server:
> do
> {
> line = _controlInput.readLine();
> ...
> }
> while (!(line.length() >= 4 && line.charAt(3) != '-' &&
> Character.isDigit(line.charAt(0;
> // This is too strong a condition because of non-conforming ftp
> // servers like ftp.funet.fi which sent 226 as the last line of a
> // 426 multi-line reply in response to ls /. We relax the
> condition to
> // test that the line starts with a digit rather than starting
> with
> // the code.
> // line.startsWith(code)));
> }
> Note the comment and the commented-out termination condition. I think the
> relevant spec is http://www.ietf.org/rfc/rfc0959.txt and the section is
> "4.2. FTP REPLIES". This is causing problems with the return from the STAT
> command from Geocities' FTP servers. Here is an example reply.
> 211- ftp.us.geocities.com FTP server status:
> Version wu-2.6.0(48) Tue Jan 2 16:30:15 PST 2007
> Connected to 144.212.217.85
> Logged in anonymously
> TYPE: ASCII, FORM: Nonprint; STRUcture: File; transfer MODE: Stream
> No data connection
> 0 data bytes received in 0 files
> 0 data bytes transmitted in 0 files
> 0 data bytes total in 0 files
> 57 traffic bytes received in 0 transfers
> 733 traffic bytes transmitted in 0 transfers
> 834 traffic bytes total in 0 transfers
> 211 End of status
> Note that the line "0 data bytes total in 0 files" starts with a digit, but
> it isn't a reply code. This prematurely halts reading of lines from the
> server, and the remaining lines will look like a reply from the next command.
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[jira] Updated: (NET-148) Relaxed condition in __getReply causes other failures.
[
https://issues.apache.org/jira/browse/NET-148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Matthew Simoneau updated NET-148:
-
Affects Version/s: Nightly Builds
> Relaxed condition in __getReply causes other failures.
> --
>
> Key: NET-148
> URL: https://issues.apache.org/jira/browse/NET-148
> Project: Commons Net
> Issue Type: Bug
>Affects Versions: 1.4, Nightly Builds
>Reporter: Matthew Simoneau
>
> In FTP.java's __getReply() method, this do/while loop reads multi-line
> responses from the server:
> do
> {
> line = _controlInput.readLine();
> ...
> }
> while (!(line.length() >= 4 && line.charAt(3) != '-' &&
> Character.isDigit(line.charAt(0;
> // This is too strong a condition because of non-conforming ftp
> // servers like ftp.funet.fi which sent 226 as the last line of a
> // 426 multi-line reply in response to ls /. We relax the
> condition to
> // test that the line starts with a digit rather than starting
> with
> // the code.
> // line.startsWith(code)));
> }
> Note the comment and the commented-out termination condition. I think the
> relevant spec is http://www.ietf.org/rfc/rfc0959.txt and the section is
> "4.2. FTP REPLIES". This is causing problems with the return from the STAT
> command from Geocities' FTP servers. Here is an example reply.
> 211- ftp.us.geocities.com FTP server status:
> Version wu-2.6.0(48) Tue Jan 2 16:30:15 PST 2007
> Connected to 144.212.217.85
> Logged in anonymously
> TYPE: ASCII, FORM: Nonprint; STRUcture: File; transfer MODE: Stream
> No data connection
> 0 data bytes received in 0 files
> 0 data bytes transmitted in 0 files
> 0 data bytes total in 0 files
> 57 traffic bytes received in 0 transfers
> 733 traffic bytes transmitted in 0 transfers
> 834 traffic bytes total in 0 transfers
> 211 End of status
> Note that the line "0 data bytes total in 0 files" starts with a digit, but
> it isn't a reply code. This prematurely halts reading of lines from the
> server, and the remaining lines will look like a reply from the next command.
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