4 usage="Usage: $0 [-bc] [COMMAND [ARGS...]]"
7 case "${SHELL-/bin/sh}" in
11 force=nil chosen= commands=
12 while [ $# -gt 0 ]; do
14 -h | --help) echo "$usage"; exit 0 ;;
15 -c | --cshell | --tcsh) style=csh chosen=t ;;
16 -b | --bourne | --bash | --zsh) style=sh chosen=t ;;
17 -f | --force) force=t ;;
19 -*) echo >&2 "$usage"; exit 1 ;;
24 [ $# -gt 0 ] && style=commands
25 case $chosen,$style in
27 echo >&2 "$0: output style and commands? you're odd"
32 ## Check that this stands a chance of working.
33 if ! type >/dev/null 2>&1 ssh-agent || ! type >/dev/null >&1 ssh-add; then
34 echo >&2 "$0: ssh not installed; chickening out"
38 ## Some useful variables.
39 hostname=${HOST-$(hostname)}
40 user=${USER-${LOGNAME-$(id -un)}} uid=${UID-$(id -u)}
41 dir=$TMPDIR/.ssh-agent.$hostname.$user
42 socket=$dir/sock; pid=$dir/pid
45 ## Should I start a new agent?
49 case ${SSH_AUTH_SOCK+t} in
51 set +e; ssh-add -l >/dev/null 2>&1; rc=$?; set -e
52 if [ $rc -lt 2 ]; then foundp=t; fi
59 "$HOME/.cache/keyring-"*"/ssh" \
60 "/run/user/$uid/keyring/ssh" \
64 set +e; ssh-add -l >/dev/null 2>&1; rc=$?; set -e
65 if [ $rc -lt 2 ]; then foundp=t; break; fi
80 case $p in *:*) d=${p%%:*} p=${p#*:} ;; *) d=$p p= ;; esac
81 if [ -x "${d+$d/}setsid" ]; then runes="$runes setsid"; break; fi
82 case $p in "") break ;; esac
84 set +e; ssh-add -l >/dev/null 2>&1; rc=$?; set -e
85 if [ $rc -ge 2 ]; then
86 if [ -f "$pid" ]; then
87 kill $(cat "$pid") >/dev/null 2>&1 || :
89 rm -f "$socket" "$pid"
90 (cd /; exec $runes ssh-agent -d -a "$socket" </dev/null >/dev/null 2>&1)&
97 ### Run a program, or export the details
99 sh) echo "SSH_AUTH_SOCK='$SSH_AUTH_SOCK'; export SSH_AUTH_SOCK" ;;
100 csh) echo "setenv SSH_AUTH_SOCK '$SSH_AUTH_SOCK'" ;;
101 commands) exec "$@" ;;