| Current File : //proc/self/root/usr/share/debconf/confmodule.sh |
#!/bin/sh
# This is a shell library to interface to the Debian configration management
# system.
#
# This library is obsolete. Do not use.
###############################################################################
# Initialization.
# Check to see if a FrontEnd is running.
if [ ! "$DEBIAN_HAS_FRONTEND" ]; then
PERL_DL_NONLAZY=1
export PERL_DL_NONLAZY
# Ok, this is pretty crazy. Since there is no FrontEnd, this
# program execs a FrontEnd. It will then run a new copy of $0 that
# can talk to it.
exec /usr/share/debconf/frontend $0 $*
fi
# Only do this once.
if [ -z "$DEBCONF_REDIR" ]; then
# Redirect standard output to standard error. This prevents common
# mistakes by making all the output of the postinst or whatever
# script is using this library not be parsed as confmodule commands.
#
# To actually send something to standard output, send it to fd 3.
exec 3>&1 1>&2
DEBCONF_REDIR=1
export DEBCONF_REDIR
fi
# For internal use, send text to the frontend.
_command () {
echo $* >&3
}
echo "WARNING: Using deprecated debconf compatibility library."
###############################################################################
# Commands.
# Generate subroutines for all commands that don't have special handlers.
# Each command must be listed twice, once in lower case, once in upper.
# Doing that saves us a lot of calls to tr at load time. I just wish shell had
# an upper-case function.
old_opts="$@"
for i in "capb CAPB" "set SET" "reset RESET" "title TITLE" \
"input INPUT" "beginblock BEGINBLOCK" "endblock ENDBLOCK" "go GO" \
"get GET" "register REGISTER" "unregister UNREGISTER" "subst SUBST" \
"fset FSET" "fget FGET" "visible VISIBLE" "purge PURGE" \
"metaget METAGET" "exist EXIST" \
"x_loadtemplatefile X_LOADTEMPLATEFILE"; do
# Break string up into words.
set -- $i
eval "db_$1 () {
_command \"$2 \$@\"
read _RET
old_opts="\$@"
set -- \$_RET
shift
RET="\$*"
set -- \$old_opts
unset old_opts
}"
done
# $@ was clobbered above, unclobber.
set -- $old_opts
unset old_opts
# By default, 1.0 protocol version is sent to the frontend. You can
# pass in a different version to override this.
db_version () {
if [ "$1" ]; then
_command "VERSION $1"
else
_command "VERSION 1.0"
fi
# Not quite correct, but not worth fixing in obsolete code.
read -r RET
}
# Here for backwards compatibility.
db_go () {
_command "GO"
read -r RET
if [ "$RET" = 30 ]; then
RET='back'
fi
}
# Just an alias for input. It tends to make more sense to use this to display
# text, since displaying text isn't really asking for input.
db_text () {
db_input $@
}
# Cannot read a return code, since there is none and we would block.
db_stop () {
echo STOP >&3
}