#!/bin/sh -u

# This script was originally written to be invokable by pine-3.95; some design
# decisions were made to maximize the functionality of this script for `pine'.

IFS=' 	
'				# Better safe than sorry!

debug=0				# 0 => no diagnostic displays to STDERR;
				# 1 => echo commands before executing them;
				# 2 => echo commands but do NOT execute them!

#tmp=${TMPDIR:-'/usr/tmp'}	# Directory for any needed temporary files ...
#tmp=${TMP:-${TMPDIR:-'/usr/tmp'}} # [Honor `pgp's $TMP before $TMPDIR?]

Basename='/bin/basename'	# Where `basename' really lives ...
Echo='/usr/ucb/echo'		# Could be just `echo' if builtin ...
Echo_n='/usr/ucb/echo -n'	# ... what does `echo -n' (or just `echo').
Pgp='/usr/uucc/exec/pgp'	# Where `pgp' really lives ...

script=`$Basename "$0"`		# Get our name (for diagnostic messages)
if [ "$script" != 'pgp' -a -t 2 ] # and (if we weren't just invoked as `pgp')
then				# then (assuming an invocation from `pine')
    $Echo "$script" >&2		# say who we are ...
    $Echo >&2			# ... with blank line.
fi
if [ "$debug" -gt 0 ]
then					### Debug ###
    $Echo $script debug: $0 ${1+"$@"} >&2
    if [ "$debug" -lt 2 ]
    then
	$Echo $script debug: commands listed and then executed >&2
    else
	$Echo $script debug: commands listed but not executed >&2
    fi
fi

if [ "$debug" -gt 0 ]
then					### Debug ###
    $Echo $script debug: $Pgp ${1+"$@"} >&2
    status=$debug
fi
if [ "$debug" -lt 2 ]
then
    $Pgp ${1+"$@"}		# Invoke `pgp' (with any supplied arguments).
    status=$?
fi

if [ "$script" != 'pgp' -a -t 2 ] # If invoked as something other than `pgp',
then				# assume it's from something like `pine'
    $Echo_n "[^D to abort] OK? " >&2	# and give the poor user (me!)
    read ok </dev/tty			# some time to read all those messages!
    ok=$?
    if [ $status -eq 0 ]	# If `pgp' succeeded,
    then			# then
	status=$ok		# use the user's ^D/return status;
    fi				# otherwise, just use `pgp's status.
fi
exit $status

### Local Variables: ###
### mode:fundamental ###
### sh-shell:sh ###
### sh-shell-file:/bin/sh ###
### End: ###