6 while getopts ":kx" opt; do
16 if [ -z "$user" ]; then
17 echo >&2 "Usage: become [-c] [-k] [-x] <user>"
18 echo >&2 "Options: -c Stay in current directory even if target user is not root."
19 echo >&2 " -k Delegate Kerberos credentials even if target user is not root."
20 echo >&2 " -x Delegate X11 cookie even if target user is not root."
24 uid=$(PATH=/usr/xpg4/bin:/usr/bin id -u "$user" 2>/dev/null)
25 if [ -z "$uid" ]; then
26 echo >&2 "Who is $user?"
36 PRINCIPAL=$(klist 2>/dev/null | sed -n 's/^Default principal: //p')
37 if [ $x11 = 1 -a -n "$DISPLAY" -a "${DISPLAY##localhost:}" = "$DISPLAY" ]; then
38 COOKIE="$(xauth list $DISPLAY)"
40 BECOME="$HOME/.become"
41 profile="$BECOME/$user"
42 [ -f "$profile" ] || profile="$BECOME/all"
44 file="${TMPDIR:-/tmp}/$USER.become.$user.$RANDOM.$$"
45 umask=$(builtin umask -p)
47 if exec 3>"$file" && exec <"$file" && rm "$file"; then
50 echo >&3 "PROFILE_HOME='$HOME'"
51 if [ -n "$PRINCIPAL" ]; then
52 echo >&3 "PRINCIPAL='$PRINCIPAL'"
53 if [ $kerberos = 1 ]; then
54 ccname=$(klist 2>/dev/null | sed -n 's/^Ticket cache: FILE://p')
55 if [ -f "$ccname" ]; then
56 openssl=$(find_working openssl)
57 if [ -n "$openssl" ]; then
58 echo >&3 "KRB5OPENSSL='$openssl'"
59 echo >&3 "KRB5BASE64='$($openssl enc -a -in $ccname)'"
64 if [ -n "$DISPLAY" -a -n "$COOKIE" ]; then
65 echo >&3 "xauth add $COOKIE"
67 echo >&3 "unset DISPLAY"
73 echo >&3 ". $HOME/.bash_profile"
74 [ -f "$BECOME/all" ] && cat >&3 2>/dev/null "$BECOME/all"
75 [ -f "$BECOME/$user" ] && cat >&3 2>/dev/null "$BECOME/$user"
76 [ $chdir = 1 ] && echo >&3 2>/dev/null "cd - &>/dev/null"
80 [ "$dir" = "." ] && dir="$PWD"
81 exec sudo -H -u "$user" "$dir/became"