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# $NetBSD: usergroupfuncs.MirBSD,v 1.1 2012/06/19 05:43:24 bsiegert Exp $
#
# Platform-specific adduser and addgroup functionality.
# group_exists group [groupid]
# Returns 0 if $group exists and has gid $groupid
# Returns 1 if neither $group nor $groupid exist
# Returns 2 if $group or $groupid exist but don't match
# Returns 3 for all errors
#
group_exists()
{
_group="$1"; _groupid="$2"
${TEST} -n "$_group" || return 3
if ${TEST} -n "$_groupid"; then
${AWK} -F : "BEGIN { rv=1 }; \$1 == \"$_group\" { if (\$3 == $_groupid) rv=0; else rv=2 }; END { exit rv }" /etc/group
else
${AWK} -F : "\$1 == \"$_group\" || \$3 == \"$_group\" { found=1 }; END { if (!found) exit 1 }" /etc/group
fi
}
# user_exists user [userid]
# Returns 0 if $user exists and has uid $userid
# Returns 1 if neither $user nor $userid exist
# Returns 2 if $user or $userid exist but don't match
# Returns 3 for all errors
#
user_exists()
{
_user="$1"; _userid="$2"
${TEST} -n "$_user" || return 3
if ${TEST} -n "$_userid"; then
${AWK} -F : "BEGIN { rv=1 }; \$1 == \"$_user\" { if (\$3 == $_userid) rv=0; else rv=2 }; END { exit rv }" /etc/passwd
else
${AWK} -F : "\$1 == \"$_user\" || \$3 == \"$_user\" { found=1 }; END { if (!found) exit 1 }" /etc/passwd
fi
}
# first_free_uid
# prints the lowest free uid
first_free_uid()
{
integer uid=700
while :; do
user_exists $uid
if (( $? == 1 )); then
break
fi
let uid++
done
${ECHO} $uid
}
# first_free_gid
# prints the lowest free gid
first_free_gid()
{
integer gid=700
while :; do
group_exists $gid
if (( $? == 1 )); then
break
fi
let gid++
done
${ECHO} $gid
}
# adduser user group [userid] [descr] [home] [shell]
adduser()
{
user="$1"; group="$2"; userid="$3"
descr="$4"; home="$5" shell="$6"
#${TEST} $# -eq 6 || return 1
${TEST} -n "$user" || return 2
${TEST} -n "$group" || return 2
case $user in
${PKGNAME%-[0-9]*}) descr_dflt="pkgsrc -- $user user" ;;
*) descr_dflt="pkgsrc -- ${PKGNAME%-[0-9]*} $user user" ;;
esac
: ${descr:="$descr_dflt"}
: ${home:="@PKG_USER_HOME@"}
: ${shell:="@PKG_USER_SHELL@"}
if ${TEST} "$group" -gt 0; then
# numerical gid
gid=$group
else
if group_exists "$group"; then
gid=$(awk -F : "\$1 == \"$group\" { print \$3 }" /etc/group)
else
gid=$(first_free_gid)
addgroup "$group" $gid
fi
fi
if ${TEST} -z "$userid"; then
userid=$(first_free_uid)
fi
${ECHO} "${PKGNAME}: Creating user \`\`$user'' ($userid)"
set -e
P=$(mktemp /etc/pwd.tmp.XXXXXXXXXX)
trap 'rm -f $P; exit 1' 1 2 3 5 13 15
${CHOWN} root:wheel $P
${CHMOD} 600 $P
${ECHO} "$user:*:$userid:$gid::0:0:$descr:$home:$shell" >>$P
${CAT} /etc/master.passwd >>$P
${SORT} -t: -nk3 -o $P $P
${MV} /etc/master.passwd /etc/master.passwd.bak
${MV} $P /etc/master.passwd
${CHOWN} root:wheel /etc/master.passwd
${CHMOD} 600 /etc/master.passwd
${RM} -f /etc/master.passwd.bak
pwd_mkdb -p /etc/master.passwd
set +e
return 0
}
# addgroup group [groupid]
addgroup()
{
group="$1"; groupid="$2"
${TEST} $# -gt 1 || return 1
${TEST} -n "$group" || return 2
if ${TEST} -z "$groupid"; then
groupid=$(first_free_gid)
fi
${ECHO} "${PKGNAME}: Creating group \`\`$group'' ($groupid)"
set -e
T=$(mktemp /etc/pwd.tmp.XXXXXXXXXX)
trap 'rm -f $T; exit 1' 1 2 3 5 13 15
${ECHO} "$group:*:$groupid:" >$T
${CHOWN} root:wheel $T
${CHMOD} 644 $T
${CAT} /etc/group >>$T
${SORT} -t: -nk3 -uo $T $T
${MV} /etc/group /etc/group.bak
${MV} $T /etc/group
${RM} -f /etc/group.bak
pwd_mkdb -p /etc/master.passwd
set +e
return 0
}
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