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-rw-r--r--src/share/m/ssh_proxycommand12
1 files changed, 11 insertions, 1 deletions
diff --git a/src/share/m/ssh_proxycommand b/src/share/m/ssh_proxycommand
index 5f7a63b..5fb2ce4 100644
--- a/src/share/m/ssh_proxycommand
+++ b/src/share/m/ssh_proxycommand
@@ -237,7 +237,17 @@ else
if (type ssh-keygen &>/dev/null) ; then
hostKey=$(ssh-keygen -F "$HOST" -f "$KNOWN_HOSTS" 2>/dev/null)
else
- # FIXME: we're not dealing with digested known_hosts if we don't
+ # FIXME: we're not dealing with digested known_hosts if we
+ # don't have ssh-keygen
+
+ # But we could do this without needing ssh-keygen. hashed
+ # known_hosts looks like: |1|X|Y where 1 means SHA1 (nothing
+ # else is defined in openssh sources), X is the salt (same
+ # length as the digest output), base64-encoded, and Y is the
+ # digested hostname (also base64-encoded).
+
+ # see hostfile.{c,h} in openssh sources.
+
hostKey=$(cut -f1 -d\ < .ssh/known_hosts | tr ',' '\n' | grep -Fx -e "$HOST" || :)
fi
fi