Hello,
I've come upon OpenSSH bug 472, whereby scp refuses usernames containing
a '#' character, dieing with 'invalid user name'. Both rsync and ssh
accept such usernames, and after looking at
/usr/src/crypto/openssh/scp.c, it would appear that scp also allows such
usernames for the source, but not the destination.
I've several questions:
1) Is there any specific reason why scp behaves like this, and
specifically why does it only attempt to validate the destination user
name and not the source?
2) Assuming it is safe to drop the username validation, I can quite
happily modify the code as appropriate. However, I'm not sure how to
rebuild and update with minimum fuss. I really only need to rebuild scp
and install the new binary, can I do this easily without a full make
buildworld; make installworld?
3) Assuming that there's no additional reason not to remove the username
validation, how should I go about submitting a change request to get
this modification made in CURRENT, and MFCed as appropriate?
Kind Regards,
Chris Key
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