32 lines
1.3 KiB
Plaintext
32 lines
1.3 KiB
Plaintext
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This version of ftpd has been fixed to conform to RFC959.
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Unfortunately, this conformance introduces a user visible change. While
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technically, this is the fault of the client (ftp) instead of the server
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(ftpd), the change will be seen whenever an old ftp client calls a new ftpd
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server.
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The problem is that the old ftpd implemented the NLST command by execing
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/bin/ls. This produced non-conformant output in some cases. The new
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ftpd no longer executes /bin/ls for the NLST command as it has it's own
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built-in code.
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The user visible change in the ftp behavior is caused by the ftp client
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"knowing" that the daemon will exec /bin/ls. This assumption should not
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have been made.
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When the old ftp client is used, one of the options is the "ls" command
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which sends the command NLST to the ftpd server. The client should really
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be sending the LIST command. The new ftp client has been corrected to do
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this.
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NLST should not normally be used directly by humans. It is intended to
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interface with commands like mget or mput.
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Users who are not able to upgrade their ftp client may obtain the previous
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behavior, by using the command "dir" instead of "ls".
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These changes only apply to those sites using code derived from the Berkeley
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software releases (which means almost every UNIX based implementation will
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see this problem).
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