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302270174d
When invoking a shell as root using ```sudo -s```, the ssh-agent plugin starts a new agent although it already exists. The problem boils down to a check if ssh-agent is running using ```ps x```. If that is extended to ```ps ax``` for root, then the existing ssh-agent will still work.
47 lines
1.2 KiB
Bash
47 lines
1.2 KiB
Bash
typeset _agent_forwarding _ssh_env_cache
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function _start_agent() {
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local lifetime
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local -a identities
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# start ssh-agent and setup environment
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zstyle -s :omz:plugins:ssh-agent lifetime lifetime
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ssh-agent -s ${lifetime:+-t} ${lifetime} | sed 's/^echo/#echo/' >! $_ssh_env_cache
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chmod 600 $_ssh_env_cache
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. $_ssh_env_cache > /dev/null
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# load identies
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zstyle -a :omz:plugins:ssh-agent identities identities
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echo starting ssh-agent...
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ssh-add $HOME/.ssh/${^identities}
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}
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# Get the filename to store/lookup the environment from
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_ssh_env_cache="$HOME/.ssh/environment-$SHORT_HOST"
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# test if agent-forwarding is enabled
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zstyle -b :omz:plugins:ssh-agent agent-forwarding _agent_forwarding
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if [[ $_agent_forwarding == "yes" && -n "$SSH_AUTH_SOCK" ]]; then
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# Add a nifty symlink for screen/tmux if agent forwarding
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[[ -L $SSH_AUTH_SOCK ]] || ln -sf "$SSH_AUTH_SOCK" /tmp/ssh-agent-$USER-screen
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elif [[ -f "$_ssh_env_cache" ]]; then
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# Source SSH settings, if applicable
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. $_ssh_env_cache > /dev/null
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if [[ $USER == "root" ]]; then
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FILTER="ax"
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else
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FILTER="x"
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fi
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ps $FILTER | grep ssh-agent | grep -q $SSH_AGENT_PID || {
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_start_agent
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}
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else
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_start_agent
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fi
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# tidy up after ourselves
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unset _agent_forwarding _ssh_env_cache
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unfunction _start_agent
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