** Description changed: Binary package hint: openssh-client This is not a terminal-related problem: regardless of the terminal used and the way the backspace key is supposed to behave (ASCII DEL, escape sequence, Control+H), what happens is that via SSH the backspace key only deletes the last byte of a character, not the whole character itself. You can notice this when you use UTF-8 characters that are encoded on more than 1 byte. Some diacritics from the Latin alphabet are encoded on 2 bytes, whereas some Japanese characters are encoded on 3. As an example, assume the following scenario: the letter "ș" is encoded as "c8 99" and endline is encoded as "0a": u...@host:~$ cat > ș.txt ș ^d u...@host:~$ hexdump -C ș.txt 00000000 c8 99 0a |...| 00000003 Now, assume you write "testș[hit backspace]test[endline]". On the physical host (i.e. without being SSH-ed into it), the hexdump of that file will be: u...@host:~$ cat > test.txt testș[backspace]test ^d u...@host:~$ hexdump -C test.txt 00000000 74 65 73 74 74 65 73 74 0a |testtest.| 00000009 whereas the *same* thing via SSH would lead you to having the following hexdump: u...@host:~$ ssh u...@localhost u...@localhost's password: u...@host:~$ cat > test.txt testș[backspace]test ^d u...@host:~$ hexdump -C test.txt 00000000 74 65 73 74 c8 74 65 73 74 0a |test.test.| 0000000a So notice how backspace only deleted via SSH the last byte of "ș" i.e. only the "99" out of "c8 99"; compare the expected hexdump: 74 65 73 74 74 65 73 74 0a with the actual hexdump: 74 65 73 74 c8 74 65 73 74 0a locale is set to en_US.UTF-8; changing it to ro_RO.UTF-8 (both on the host and via SSH) yields the same results. Finally, last details: Ubuntu 9.04 Kernel 2.6.28-13-generic openssh-client: Installed: 1:5.1p1-5ubuntu1 openssh-server: Installed: 1:5.1p1-5ubuntu1 + + L.E.: I also tried the same thing using dropbear instead of OpenSSH.
-- Backspace via SSH only deletes last byte of characters https://bugs.launchpad.net/bugs/394570 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
