freebsd-nq/usr.sbin/bsdconfig/share/variable.subr

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if [ ! "$_VARIABLE_SUBR" ]; then _VARIABLE_SUBR=1
#
# Copyright (c) 2012-2013 Devin Teske
# All Rights Reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
############################################################ INCLUDES
BSDCFG_SHARE="/usr/share/bsdconfig"
. $BSDCFG_SHARE/common.subr || exit 1
f_dprintf "%s: loading includes..." variable.subr
f_include $BSDCFG_SHARE/dialog.subr
f_include $BSDCFG_SHARE/strings.subr
############################################################ GLOBALS
VARIABLES=
#
# Default behavior is to call f_variable_set_defaults() when loaded.
#
: ${VARIABLE_SELF_INITIALIZE=1}
#
# File to write when f_dump_variables() is called.
#
: ${VARIABLE_DUMPFILE:=/etc/bsdconfig.vars}
############################################################ FUNCTIONS
# f_variable_new $handle $variable
#
# Register a new variable named $variable with the given reference-handle
# $handle. The environment variable $handle is set to $variable allowing you to
# use the f_getvar() function (from common.subr) with $handle to get the value
# of environment variable $variable. For example:
#
# f_variable_new VAR_ABC abc
#
# allows the later indirection:
#
# f_getvar $VAR_ABC
#
# to return the value of environment variable `abc'. Variables registered in
# this manner are recorded in the $VARIABLES environment variable for later
# allowing dynamic enumeration of so-called `registered/advertised' variables.
#
f_variable_new()
{
local handle="$1" variable="$2"
[ "$handle" ] || return $FAILURE
f_dprintf "variable.subr: New variable %s -> %s" "$handle" "$variable"
setvar $handle $variable
VARIABLES="$VARIABLES${VARIABLES:+ }$handle"
}
# f_variable_get_value $var [ $fmt [ $opts ... ] ]
#
# Unless nonInteractive is set, prompt the user with a given value (pre-filled
# with the value of $var) and give them the chance to change the value.
#
# Unlike f_getvar() (from common.subr) which can return a variable to the
# caller on standard output, this function has no [meaningful] output.
#
# Returns success unless $var is either NULL or missing.
#
f_variable_get_value()
{
local var="$1" cp
[ "$var" ] || return $FAILURE
if ! { f_getvar $var cp && ! f_interactive; }; then
shift 1 # var
f_dialog_input cp "$( printf "$@" )" "$cp" && setvar $var "$cp"
fi
return $SUCCESS
}
# f_variable_set_defaults
#
# Installs sensible defaults for registered/advertised variables.
#
f_variable_set_defaults()
{
#
# Initialize various user-edittable values to their defaults
#
setvar $VAR_EDITOR "${EDITOR:-/usr/bin/ee}"
setvar $VAR_FTP_STATE "auto"
setvar $VAR_FTP_USER "ftp"
setvar $VAR_HOSTNAME "$( hostname )"
setvar $VAR_MEDIA_TIMEOUT "300"
setvar $VAR_NFS_SECURE "NO"
setvar $VAR_NFS_TCP "NO"
setvar $VAR_NFS_V3 "YES"
setvar $VAR_PKG_TMPDIR "/var/tmp"
setvar $VAR_RELNAME "$UNAME_R"
f_dprintf "f_variable_set_defaults: Defaults initialized."
}
# f_dump_variables
#
# Dump a list of registered/advertised variables and their respective values to
# $VARIABLE_DUMPFILE. Returns success unless the file couldn't be written. If
# an error occurs, it is displayed using f_dialog_msgbox() (from dialog.subr).
#
f_dump_variables()
{
local err
if ! err=$(
( for handle in $VARIABLES; do
f_getvar $handle var || continue
f_getvar $var value || continue
f_shell_escape "$value" value
printf "%s='%s'\n" "$var" "$value"
done > "$VARIABLE_DUMPFILE" ) 2>&1
); then
f_dialog_msgbox "$err"
return $FAILURE
fi
}
# f_debugging
#
# Are we in debug mode? Returns success if extra DEBUG information has been
# requested (by setting $debug to non-NULL), otherwise false.
#
f_debugging()
{
local value
f_getvar $VAR_DEBUG value && [ "$value" ]
}
# f_interactive()
#
# Are we running interactively? Return error if $nonInteractive is set and non-
# NULL, otherwise return success.
#
f_interactive()
{
local value
! f_getvar $VAR_NONINTERACTIVE value || [ ! "$value" ]
}
# f_netinteractive()
#
# Has the user specifically requested the network-portion of configuration and
# setup to be performed interactively? Returns success if the user has asked
# for the network configuration to be done interactively even if perhaps over-
# all non-interactive mode has been requested (by setting nonInteractive).
#
# Returns success if $netInteractive is set and non-NULL.
#
f_netinteractive()
{
local value
f_getvar $VAR_NETINTERACTIVE value && [ "$value" ]
}
############################################################ MAIN
#
# Variables that can be tweaked from config files
#
# Handle Variable Name
f_variable_new VAR_CONFIG_FILE configFile
f_variable_new VAR_DEBUG debug
f_variable_new VAR_DEBUG_FILE debugFile
f_variable_new VAR_DIRECTORY_PATH _directoryPath
f_variable_new VAR_DOMAINNAME domainname
f_variable_new VAR_EDITOR editor
f_variable_new VAR_EXTRAS ifconfig_
f_variable_new VAR_FTP_DIR ftpDirectory
f_variable_new VAR_FTP_HOST ftpHost
f_variable_new VAR_FTP_PASS ftpPass
f_variable_new VAR_FTP_PATH _ftpPath
f_variable_new VAR_FTP_PORT ftpPort
f_variable_new VAR_FTP_STATE ftpState
f_variable_new VAR_FTP_USER ftpUser
f_variable_new VAR_GATEWAY defaultrouter
f_variable_new VAR_HOSTNAME hostname
f_variable_new VAR_HTTP_FTP_MODE httpFtpMode
f_variable_new VAR_HTTP_PROXY httpProxy
f_variable_new VAR_HTTP_PROXY_HOST httpProxyHost
f_variable_new VAR_HTTP_PROXY_PATH _httpProxyPath
f_variable_new VAR_HTTP_PROXY_PORT httpProxyPort
f_variable_new VAR_IFCONFIG ifconfig_
f_variable_new VAR_IPADDR ipaddr
f_variable_new VAR_IPV6ADDR ipv6addr
f_variable_new VAR_IPV6_ENABLE ipv6_activate_all_interfaces
f_variable_new VAR_MEDIA_TIMEOUT MEDIA_TIMEOUT
f_variable_new VAR_MEDIA_TYPE mediaType
f_variable_new VAR_NAMESERVER nameserver
f_variable_new VAR_NETINTERACTIVE netInteractive
f_variable_new VAR_NETMASK netmask
f_variable_new VAR_NETWORK_DEVICE netDev
f_variable_new VAR_NFS_HOST nfsHost
f_variable_new VAR_NFS_PATH nfsPath
f_variable_new VAR_NFS_SECURE nfs_reserved_port_only
f_variable_new VAR_NFS_TCP nfs_use_tcp
f_variable_new VAR_NFS_V3 nfs_use_v3
f_variable_new VAR_NONINTERACTIVE nonInteractive
f_variable_new VAR_NO_CONFIRM noConfirm
f_variable_new VAR_NO_ERROR noError
f_variable_new VAR_NO_INET6 noInet6
f_variable_new VAR_PACKAGE package
f_variable_new VAR_PKG_TMPDIR PKG_TMPDIR
f_variable_new VAR_PORTS_PATH ports
f_variable_new VAR_RELNAME releaseName
f_variable_new VAR_SLOW_ETHER slowEthernetCard
f_variable_new VAR_TRY_DHCP tryDHCP
f_variable_new VAR_TRY_RTSOL tryRTSOL
f_variable_new VAR_UFS_PATH ufs
#
# Self-initialize unless requested otherwise
#
f_dprintf "%s: VARIABLE_SELF_INITIALIZE=[%s]" \
variable.subr "$VARIABLE_SELF_INITIALIZE"
case "$VARIABLE_SELF_INITIALIZE" in
""|0|[Nn][Oo]|[Oo][Ff][Ff]|[Ff][Aa][Ll][Ss][Ee]) : do nothing ;;
*) f_variable_set_defaults
esac
f_dprintf "%s: Successfully loaded." variable.subr
fi # ! $_VARIABLE_SUBR