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https://bugzilla.mindrot.org/show_bug.cgi?id=3438

Bug ID: 3438
Summary: env var that is SetEnv'ed multiple times in the same
SetEnv directive, is sent/printed several times
Product: Portable OpenSSH
Version: v9.0p1
Hardware: Other
OS: Linux
Status: NEW
Severity: normal
Priority: P5
Component: Miscellaneous
Assignee: unassigned-bugs@mindrot.org
Reporter: calestyo@scientia.org

Hey.

Not sure whether this is a bug, but I guess so.

When doing e.g.
SetEnv LC_ALL=C
SetEnv LC_ALL=C.UTF-8

only the former will show up in e.g. -G as:
setenv LC_ALL=C
respectively -v as:
debug1: channel 0: setting env LC_ALL = "C"

which is, I guess, as it should be.

However, when using:
SetEnv LC_ALL=C LC_ALL=C.UTF-8

-G will give:
setenv LC_ALL=C
setenv LC_ALL=C.UTF-8

and -v:
debug1: channel 0: setting env LC_ALL = "C"
debug1: channel 0: setting env LC_ALL = "C.UTF-8"

and in the remote shell, the env var is actually set to the latter
("C.UTF-8").
If actually desired, than at least this should be documented in SetEnv.

And -G should probably only print the one line that actually matters.


Thanks,
Chris.

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