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