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#! /bin/sh
# @(#) mkpath.sh,v 1.6 1992/07/11 11:40:14 tron Exp
#
# mkpath - make a pathalias output file
#
# Copyright (C) 1988 Ronald S. Karr and Landon Curt Noll
# Copyright (C) 1992 Ronald S. Karr
#
# See the file COPYING, distributed with smail, for restriction
# and warranty information.
# Usage:
# mkpath [-v] [-V] [-x] [-e] [-n] [-t trace] [path_config]
#
# -v verbose mode for mkpath, execution block commands
# are executed with the sh(1) -v flag
# -V pathalias(8) runs with '-v' verbose mode
# -x execution block commands are executed with the
# sh(1) '-x' option.
# -e tries to get mkpath to stop when it encounters a
# syntax error, and the internal sh(1) to stop when
# a top level command exits with a non-zero status.
# -n disables the execution of any sh(1) commands
# useful with the '-v' and disables '-x', '-e', '-V', '-t'
# -t trace all input of pathalias(8) is to be copied into
# the file 'trace'.
# path_config pathalia's configuration file, '-' => stdin,
# or $LIB_DIR/maps/mkpath.conf by default
#
# If '-V' and '-t' are both used, '-V' must be before '-t'.
# base directory for smail library/utility
#
# These directories should be owned by root, and only writeable by root
#
LIB_DIR="X_LIB_DIR_X"
UTIL_BIN_DIR="X_UTIL_BIN_DIR_X"
TMPDIR="X_TMP_DIR_X"
MAPDIR="$LIB_DIR/maps"
# standard locations
#
PATHALIAS=$UTIL_BIN_DIR/pathalias
DCASEHOST=$UTIL_BIN_DIR/dcasehost
AWKFILE=$UTIL_BIN_DIR/mkpath.awk
GLEEM=$UTIL_BIN_DIR/gleem
GETOPT=$UTIL_BIN_DIR/getopt
SORT=sort
PATH="X_UTIL_PATH_X:X_SECURE_PATH_X"; export PATH
# parse args - need a public domain getopt command - XXX
#
PROG=$0
USAGE="$PROG: usage: $PROG [-v] [-V] [-x] [-e] [-n] [-t trace] [path_config]"
set -- `$GETOPT -n $PROG -q vVxent: $*`
if [ "$?" -ne 0 ]; then
echo "$USAGE" 1>&2
exit 1
fi
SHELL_ARGS="-"
ERR=0
TEE_FILE=
PWD=`pwd`
for i in $*; do
case $i in
-v) SHELL_ARGS="$SHELL_ARGS"v; shift;;
-V) PATHALIAS="$PATHALIAS -v"; shift;;
-x) SHELL_ARGS="$SHELL_ARGS"x; shift;;
-e) SHELL_ARGS="$SHELL_ARGS"e; ERR=1; shift;;
-n) SHELL_ARGS="$SHELL_ARGS"n; shift;;
-t) if [ -z "$TEE_FILE" ]; then
TEE_FILE="$2"; PATHALIAS="tee -a $TEE_FILE | $PATHALIAS";
fi; shift 2;;
--) shift; break;;
esac
done
# determine the path.conf config file
if [ "$#" -gt 1 ]; then
echo "$USAGE"
exit 4
elif [ "$#" -eq 1 ]; then
CONFIG="$1"
else
CONFIG=
fi
# verify that we can read the config file
# determine the initial directory
#
if [ "$CONFIG" = "-" ]; then
CD="$PWD"
CONFIG="mkpath_stdin"
CONF=""
elif [ -z "$CONFIG" ]; then
CD="$MAPDIR"
cd "$CD"
CD=`pwd`
CONFIG="$MAPDIR"/mkpath.conf
CONF="$CONFIG"
elif [ -r "$CONFIG" ]; then
if [ "`expr $CONFIG : '\\/'`" -eq 0 ]; then
CD=`pwd`
else
CD=`echo "$CONFIG" | sed 's,^\(.*\)/[^/][^/]*$,\1,'`
cd "$CD"
CD=`pwd`
fi
CONF="$CONFIG"
else
echo "$PROG: can not read $CONFIG" 1>&2
exit 5
fi
# special action commands
#
# args to run pathalias, switch fields and sort for the pathsort command
PATHSORT="$PATHALIAS -i -D|$DCASEHOST|$SORT -T $TMPDIR"
# export vars needed for the sub-shell
#
# process the config file
#
trap "rm -f $TMPDIR/stm*;exit 1" 1 2 3 15
if [ "$TEE_FILE" ]; then
cat /dev/null > $TEE_FILE
fi
# strip input of #comments, run it thru awk and into the shell
(echo "#! /bin/sh $SHELL_ARGS"
echo "PROG=\"$PROG\""
echo "PWD=\"$PWD\""
echo "CD=\"$CD\""
echo "CWD=\"$CD\""
echo "ERR=\"$ERR\""
echo "PATH=\"$PATH\""
echo "GLEEM=\"$GLEEM\""
echo "PATHALIAS=\"$PATHALIAS\""
echo "PATHSORT=\"$PATHSORT\""
echo "export PROG PWD CD CWD ERR PATH GLEEM PATHALIAS PATHSORT"
if [ -z "$CONF" ]; then
sed -e 's/[ ]*#.*$//' -e 's/^[ ]*//'
else
sed -e 's/[ ]*#.*$//' -e 's/^[ ]*//' < "$CONFIG"
fi | awk -f "$AWKFILE" ERR="$ERR" PROG="$PROG" - ) | /bin/sh "$SHELL_ARGS"
exit $?
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