1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/openpkg/rc.func Tue Jan 06 23:40:39 2009 +0100
1.3 @@ -0,0 +1,210 @@
1.4 +##
1.5 +## @l_prefix@/etc/rc.func -- Run-Command Helper Functions
1.6 +## Copyright (c) 2000-2007 OpenPKG Foundation e.V. <http://openpkg.net/>
1.7 +## Copyright (c) 2000-2007 Ralf S. Engelschall <http://engelschall.com/>
1.8 +##
1.9 +## Permission to use, copy, modify, and distribute this software for
1.10 +## any purpose with or without fee is hereby granted, provided that
1.11 +## the above copyright notice and this permission notice appear in all
1.12 +## copies.
1.13 +##
1.14 +## THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
1.15 +## WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
1.16 +## MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
1.17 +## IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
1.18 +## CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.19 +## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.20 +## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
1.21 +## USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
1.22 +## ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
1.23 +## OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
1.24 +## OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.25 +## SUCH DAMAGE.
1.26 +##
1.27 +
1.28 +##
1.29 +## NOTICE: This script is a collection of reusable shell functions
1.30 +## running under GNU Bash during the execution of OpenPKG run-command
1.31 +## sections.
1.32 +##
1.33 +
1.34 +#
1.35 +# rcMsg (display message)
1.36 +#
1.37 +# Usage: rcMsg [-e] [-w] <message>
1.38 +# Example: rcMsg -e "invalid command line"
1.39 +# Description: display a regular/warning/error message.
1.40 +#
1.41 +rcMsg () {
1.42 + local prefix="rc:"
1.43 + while [ $# -gt 0 ]; do
1.44 + case $1 in
1.45 + -e ) prefix="${prefix}ERROR:"; shift ;;
1.46 + -w ) prefix="${prefix}WARNING:"; shift ;;
1.47 + * ) break ;;
1.48 + esac
1.49 + done
1.50 + echo "${prefix} $*"
1.51 + return 0
1.52 +}
1.53 +
1.54 +#
1.55 +# rcPath (manipulate colon-separated PATH-style variable)
1.56 +#
1.57 +# Usage: rcPath [-a] [-r] [-p] [-e] <var> <dir> [<dir> ...]
1.58 +# Example: rcPath -a -e PATH /bin /sbin /usr/bin /usr/sbin /usr/ccs/bin
1.59 +# Description: removes (-r) or adds (-a) by appending or prepending
1.60 +# (-p) one or more directories <dir> (optionally have
1.61 +# to be existing if -e is given) to a colon-separated
1.62 +# PATH-style variable <var>. In case a directory already
1.63 +# exists, it is first removed.
1.64 +#
1.65 +rcPath () {
1.66 + local mode=""
1.67 + local prepend=0
1.68 + local exists=0
1.69 + while [ $# -gt 0 ]; do
1.70 + case $1 in
1.71 + -a ) mode="add"; shift ;;
1.72 + -r ) mode="remove"; shift ;;
1.73 + -p ) prepend=1; shift ;;
1.74 + -e ) exists=1; shift ;;
1.75 + * ) break ;;
1.76 + esac
1.77 + done
1.78 + local var="$1"
1.79 + shift
1.80 + if [ ".${mode}" = .add ]; then
1.81 + local edit_del=""
1.82 + local edit_add=""
1.83 + local dir
1.84 + for dir in "$@"; do
1.85 + if [ ".${exists}" = .1 ] && [ ! -d "${dir}" ]; then
1.86 + continue
1.87 + fi
1.88 + edit_del="${edit_del} -e 's;^${dir}\$;;' -e 's;^${dir}:;;'"
1.89 + edit_del="${edit_del} -e 's;:${dir}:;:;' -e 's;:${dir}\$;;'"
1.90 + if [ ".${prepend}" = .0 ]; then
1.91 + edit_add="${edit_add} -e 's;\$;:${dir};'"
1.92 + else
1.93 + edit_add="-e 's;^;${dir}:;' ${edit_add}"
1.94 + fi
1.95 + done
1.96 + if [ ".${edit_del}${edit_add}" != . ]; then
1.97 + eval "${var}=\`echo \"\$${var}\" | sed ${edit_del} ${edit_add}\`"
1.98 + fi
1.99 + return 0
1.100 + elif [ ".${mode}" = .remove ]; then
1.101 + local edit=""
1.102 + local dir
1.103 + for dir in "$@"; do
1.104 + edit="${edit} -e 's;^${dir}\$;;' -e 's;^${dir}:;;'"
1.105 + edit="${edit} -e 's;:${dir}:;:;' -e 's;:${dir}\$;;'"
1.106 + done
1.107 + eval "${var}=\`echo \"\$${var}\" | sed ${edit}\`"
1.108 + return 0
1.109 + else
1.110 + rcMsg -e "rcPath: neither add (-a) nor remove (-r) operation specified"
1.111 + return 1
1.112 + fi
1.113 +}
1.114 +
1.115 +#
1.116 +# rcTmp (temporary file handling)
1.117 +#
1.118 +# Usage: rcTmp [-i] [-f [-n <name>]] [-k]
1.119 +# Example: rcTmp -i; tmpfile=`rcTmp -f -n tmp`; ...; rcTmp -k
1.120 +# Description: ???
1.121 +#
1.122 +rcTmp () {
1.123 + local mode=""
1.124 + local name=""
1.125 + while [ $# -gt 0 ]; do
1.126 + case $1 in
1.127 + -i ) mode="init"; shift ;;
1.128 + -f ) mode="file"; shift ;;
1.129 + -k ) mode="kill"; shift ;;
1.130 + -n ) name="$2"; shift; shift ;;
1.131 + * ) break ;;
1.132 + esac
1.133 + done
1.134 + if [ ".${mode}" = .init ]; then
1.135 + if [ ".${RC_TMPDIR}" = . ]; then
1.136 + local i=0
1.137 + while [ ${i} -lt 10 ]; do
1.138 + RC_TMPDIR="@l_prefix@/RPM/TMP/rc-`date '+%Y%m%d%H%M%S'`-$$"
1.139 + (umask 022; mkdir ${RC_TMPDIR} >/dev/null 2>&1) && break
1.140 + i=$((${i} + 1))
1.141 + sleep 1
1.142 + done
1.143 + if [ ${i} -eq 10 ]; then
1.144 + rcMsg -e "rcTmp: unable to establish secure temporary directory" 1>&2
1.145 + return 1
1.146 + fi
1.147 + declare -r RC_TMPDIR
1.148 + fi
1.149 + return 0
1.150 + elif [ ".${mode}" = .file ]; then
1.151 + echo "${RC_TMPDIR}/${name:-tmp}"
1.152 + return 0
1.153 + elif [ ".${mode}" = .kill ]; then
1.154 + if [ ".${RC_TMPDIR}" = . ]; then
1.155 + rcMsg -e "rcTmp: no secure temporary directory known"
1.156 + return 1
1.157 + else
1.158 + rm -rf ${RC_TMPDIR}
1.159 + return 0
1.160 + fi
1.161 + else
1.162 + rcMsg -e "rcTmp: neither init (-i), file (-f) nor kill (-k) operation specified"
1.163 + return 1
1.164 + fi
1.165 +}
1.166 +
1.167 +#
1.168 +# rcService (check for service status enable/active/usable)
1.169 +#
1.170 +# Usage: rcService <pkg> <service> <val>
1.171 +# Example: if rcService openssh enable yes; then ...
1.172 +# Description: check <service> of package <pkg> against value <val>.
1.173 +# <service> has to be one of "enable", "active" or "usable".
1.174 +# <val> has to be either "no", "yes", or "unknown".
1.175 +#
1.176 +rcService () {
1.177 + local pkg="`echo ${1} | sed -e 's;-;_;g'`"
1.178 + local var="${pkg}_${2}"
1.179 + local chk="${3}"
1.180 + eval "local val=\$${var}"
1.181 + if [ ".${val}" = . ]; then
1.182 + eval `@l_prefix@/bin/openpkg rc 2>/dev/null --silent ${1} status || true`
1.183 + eval "local val=\$${var}"
1.184 + fi
1.185 + if [ ".${val}" = ".${chk}" ]; then
1.186 + return 0
1.187 + else
1.188 + return 1
1.189 + fi
1.190 +}
1.191 +
1.192 +#
1.193 +# rcVarIsYes (check variable for positive value)
1.194 +#
1.195 +# Usage: rcVarIsYes <var>
1.196 +# Example: if rcVarIsYes foo; then ...
1.197 +# Description: check whether a variable <var> contains a positive
1.198 +# value, i.e., the values "yes", "true", "on" or "1" in
1.199 +# arbitrary lower or upper case.
1.200 +#
1.201 +rcVarIsYes () {
1.202 + local var="${1}"
1.203 + eval "local val=\"\$${var}\""
1.204 + case "${val}" in
1.205 + [Yy][Ee][Ss] | [Tt][Rr][Uu][Ee] | [Oo][Nn] | 1 )
1.206 + return 0
1.207 + ;;
1.208 + * )
1.209 + return 1
1.210 + ;;
1.211 + esac
1.212 +}
1.213 +
