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@alisade
Last active February 3, 2021 13:00
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source ~/ssh-agent.sh
sshagent_init
function sshagent_findsockets {
find /tmp -uid $(id -u) -type s -name agent.\* 2>/dev/null
}
function sshagent_testsocket {
if [ ! -x "$(which ssh-add)" ] ; then
echo "ssh-add is not available; agent testing aborted"
return 1
fi
if [ X"$1" != X ] ; then
export SSH_AUTH_SOCK=$1
fi
if [ X"$SSH_AUTH_SOCK" = X ] ; then
return 2
fi
if [ -S $SSH_AUTH_SOCK ] ; then
ssh-add -l > /dev/null
if [ $? = 2 ] ; then
echo "Socket $SSH_AUTH_SOCK is dead! Deleting!"
rm -f $SSH_AUTH_SOCK
return 4
else
echo "Found ssh-agent $SSH_AUTH_SOCK"
return 0
fi
else
echo "$SSH_AUTH_SOCK is not a socket!"
return 3
fi
}
function sshagent_init {
# ssh agent sockets can be attached to a ssh daemon process or an
# ssh-agent process.
AGENTFOUND=0
# Attempt to find and use the ssh-agent in the current environment
if sshagent_testsocket ; then AGENTFOUND=1 ; fi
# If there is no agent in the environment, search /tmp for
# possible agents to reuse before starting a fresh ssh-agent
# process.
if [ $AGENTFOUND = 0 ] ; then
for agentsocket in $(sshagent_findsockets) ; do
if [ $AGENTFOUND != 0 ] ; then break ; fi
if sshagent_testsocket $agentsocket ; then AGENTFOUND=1 ; fi
done
fi
# If at this point we still haven't located an agent, it's time to
# start a new one
if [ $AGENTFOUND = 0 ] ; then
eval `ssh-agent`
fi
# Clean up
unset AGENTFOUND
unset agentsocket
# Finally, show what keys are currently in the agent
#ssh-add -l
}
alias sagent="sshagent_init"
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