Author: dteske
Date: Sun Jun  2 05:45:25 2013
New Revision: 251242
URL: http://svnweb.freebsd.org/changeset/base/251242

Log:
  Similar to r251236, improve the portion of dialog(1) API in dialog.subr
  responsible for retrieving stored input (for the --inputbox and --password
  widgets).
  
  When we (Ron McDowell and I) developed the first version of bsdconfig, it
  used temporary files to store responses from dialog(1). That hasn't been
  true for a very long time, so the need to always execute some clean-up
  function is long-deprecated. The function that used to perform these clean-
  up routines for these widgets was f_dialog_inputstr().
  
  We really don't need f_dialog_inputstr() for its originally designed purpose
  as all dialog invocations no longer require temporary files.
  
  Just as in r251236, redesign f_dialog_inputstr() in the following four ways:
  
  1. Rename f_dialog_inputstr() to f_dialog_inputstr_fetch()
  2. Introduce the new first-argument of $var_to_set to reduce forking
  3. Create a corresponding f_dialog_inputstr_store() to abstract storage
  4. Offload the sanitization to a new function, f_dialog_line_sanitize()
  
  It should be noted that f_dialog_line_sanitize() -- unlike its cousin from
  SVN r251236, f_dialog_data_sanitize() -- trims leading/trailing whitespace
  from the user's input. This helps prevent errors and common mistakes caused
  by the fact that the new cdialog implementation allows the right-arrow
  cursor key to go beyond the last byte of realtime input (adding whitespace
  at the end of the typed value).
  
  While we're centralizing the sanitization, let's rewrite f_dialog_input()
  while we're here to likewise reduce forking. The f_dialog_input() function
  now expects the first argument of $var_to_set instead of producing results
  on standard-out.
  
  These changes greatly improve readability and also improve performance.

Modified:
  head/usr.sbin/bsdconfig/console/saver
  head/usr.sbin/bsdconfig/mouse/flags
  head/usr.sbin/bsdconfig/networking/share/hostname.subr
  head/usr.sbin/bsdconfig/networking/share/ipaddr.subr
  head/usr.sbin/bsdconfig/networking/share/media.subr
  head/usr.sbin/bsdconfig/networking/share/netmask.subr
  head/usr.sbin/bsdconfig/networking/share/resolv.subr
  head/usr.sbin/bsdconfig/networking/share/routing.subr
  head/usr.sbin/bsdconfig/password/share/password.subr
  head/usr.sbin/bsdconfig/share/dialog.subr
  head/usr.sbin/bsdconfig/share/media/tcpip.subr
  head/usr.sbin/bsdconfig/share/mustberoot.subr
  head/usr.sbin/bsdconfig/share/variable.subr
  head/usr.sbin/bsdconfig/startup/misc
  head/usr.sbin/bsdconfig/startup/share/rcconf.subr
  head/usr.sbin/bsdconfig/startup/share/rcedit.subr
  head/usr.sbin/bsdconfig/usermgmt/share/group_input.subr
  head/usr.sbin/bsdconfig/usermgmt/share/user_input.subr

Modified: head/usr.sbin/bsdconfig/console/saver
==============================================================================
--- head/usr.sbin/bsdconfig/console/saver       Sun Jun  2 04:30:03 2013        
(r251241)
+++ head/usr.sbin/bsdconfig/console/saver       Sun Jun  2 05:45:25 2013        
(r251242)
@@ -183,9 +183,9 @@ while :; do
                break ;;
        "$msg_timeout") # Set the screen saver timeout interval
                f_dialog_title "$msg_value_required"
-               blanktime=$( f_dialog_input "$msg_enter_timeout_period" \
-                                           "$( f_sysrc_get blanktime )"
-                          ) && f_sysrc_set blanktime "$blanktime"
+               f_dialog_input blanktime "$msg_enter_timeout_period" \
+                              "$( f_sysrc_get blanktime )" &&
+                       f_sysrc_set blanktime "$blanktime"
                f_dialog_title_restore
                ;;
        esac

Modified: head/usr.sbin/bsdconfig/mouse/flags
==============================================================================
--- head/usr.sbin/bsdconfig/mouse/flags Sun Jun  2 04:30:03 2013        
(r251241)
+++ head/usr.sbin/bsdconfig/mouse/flags Sun Jun  2 05:45:25 2013        
(r251242)
@@ -79,9 +79,8 @@ flags=$( f_sysrc_get moused_flags )
 # Prompt the user with the current value
 #
 f_dialog_title "$msg_value_required"
-flags=$( f_dialog_input "$msg_please_specify_the_mouse_daemon_flags" \
-                        "$flags"
-       ) || f_die
+f_dialog_input flags "$msg_please_specify_the_mouse_daemon_flags" \
+               "$flags" || f_die
 f_dialog_title_restore
 
 #

Modified: head/usr.sbin/bsdconfig/networking/share/hostname.subr
==============================================================================
--- head/usr.sbin/bsdconfig/networking/share/hostname.subr      Sun Jun  2 
04:30:03 2013        (r251241)
+++ head/usr.sbin/bsdconfig/networking/share/hostname.subr      Sun Jun  2 
05:45:25 2013        (r251242)
@@ -108,9 +108,8 @@ f_dialog_input_hostname()
        # Loop until the user provides taint-free input.
        #
        while :; do
-               hostname=$( f_dialog_input "$msg" "$hostname" \
-                                          "$hline_alnum_punc_tab_enter"
-                         ) || return
+               f_dialog_input hostname "$msg" "$hostname" \
+                              "$hline_alnum_punc_tab_enter" || return
                # Taint-check the user's input
                f_dialog_validate_hostname "$hostname" && break
        done

Modified: head/usr.sbin/bsdconfig/networking/share/ipaddr.subr
==============================================================================
--- head/usr.sbin/bsdconfig/networking/share/ipaddr.subr        Sun Jun  2 
04:30:03 2013        (r251241)
+++ head/usr.sbin/bsdconfig/networking/share/ipaddr.subr        Sun Jun  2 
05:45:25 2013        (r251242)
@@ -162,9 +162,8 @@ f_dialog_input_ipaddr()
                # - User has either pressed ESC or chosen Cancel/No
                # - User has not made any changes to the given value
                #
-               _input=$( f_dialog_input "$msg" "$_ipaddr" \
-                                        "$hline_num_punc_tab_enter"
-                       ) || return
+               f_dialog_input _input "$msg" "$_ipaddr" \
+                              "$hline_num_punc_tab_enter" || return
                [ "$_ipaddr" = "$_input" ] && return $FAILURE
 
                # Return success if NULL value was entered

Modified: head/usr.sbin/bsdconfig/networking/share/media.subr
==============================================================================
--- head/usr.sbin/bsdconfig/networking/share/media.subr Sun Jun  2 04:30:03 
2013        (r251241)
+++ head/usr.sbin/bsdconfig/networking/share/media.subr Sun Jun  2 05:45:25 
2013        (r251242)
@@ -122,8 +122,8 @@ f_dialog_input_options()
        local msg="$( printf "$msg_please_enter_mediaopts" "$interface" )"
        local hline="$hline_alnum_punc_tab_enter"
 
-       local dialog_inputbox
-       dialog_inputbox=$( $DIALOG \
+       local _options
+       _options=$( $DIALOG \
                --title "$DIALOG_TITLE"         \
                --backtitle "$DIALOG_BACKTITLE" \
                --hline "$hline"                \
@@ -133,10 +133,8 @@ f_dialog_input_options()
                "$options"                      \
                2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
        )
-
        local retval=$?
-       setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
-       local _options="$( f_dialog_inputstr )"
+       f_dialog_line_sanitize _options
 
        [ $retval -eq $SUCCESS ] && options="$_options"
 

Modified: head/usr.sbin/bsdconfig/networking/share/netmask.subr
==============================================================================
--- head/usr.sbin/bsdconfig/networking/share/netmask.subr       Sun Jun  2 
04:30:03 2013        (r251241)
+++ head/usr.sbin/bsdconfig/networking/share/netmask.subr       Sun Jun  2 
05:45:25 2013        (r251242)
@@ -110,9 +110,8 @@ f_dialog_input_netmask()
                # - User has either pressed ESC or chosen Cancel/No
                # - User has not made any changes to the given value
                #
-               _input=$( f_dialog_input "$msg" "$_netmask" \
-                                        "$hline_num_punc_tab_enter"
-                       ) || return
+               f_dialog_input _input "$msg" "$_netmask" \
+                              "$hline_num_punc_tab_enter" || return
                [ "$_netmask" = "$_input" ] && return $FAILURE
 
                # Return success if NULL value was entered

Modified: head/usr.sbin/bsdconfig/networking/share/resolv.subr
==============================================================================
--- head/usr.sbin/bsdconfig/networking/share/resolv.subr        Sun Jun  2 
04:30:03 2013        (r251241)
+++ head/usr.sbin/bsdconfig/networking/share/resolv.subr        Sun Jun  2 
05:45:25 2013        (r251242)
@@ -311,9 +311,8 @@ f_dialog_input_nameserver()
        # Loop until the user provides taint-free input.
        #
        while :; do
-               new_ns=$( f_dialog_input "$msg" "$ns" \
-                                        "$hline_num_punc_tab_enter"
-                       ) || return
+               f_dialog_input new_ns "$msg" "$ns" \
+                              "$hline_num_punc_tab_enter" || return
 
                # Take only the first "word" of the user's input
                new_ns="${new_ns%%[$IFS]*}"

Modified: head/usr.sbin/bsdconfig/networking/share/routing.subr
==============================================================================
--- head/usr.sbin/bsdconfig/networking/share/routing.subr       Sun Jun  2 
04:30:03 2013        (r251241)
+++ head/usr.sbin/bsdconfig/networking/share/routing.subr       Sun Jun  2 
05:45:25 2013        (r251242)
@@ -83,10 +83,9 @@ f_dialog_input_defaultrouter()
        #
        local retval
        while :; do
-               defaultrouter=$( f_dialog_input \
-                       "$msg_please_enter_default_router" \
-                       "$defaultrouter" "$hline_num_punc_tab_enter"
-               )
+               f_dialog_input defaultrouter \
+                              "$msg_please_enter_default_router" \
+                              "$defaultrouter" "$hline_num_punc_tab_enter"
                retval=$?
                [ "$defaultrouter" ] || return $SUCCESS
                [ $retval -eq $SUCCESS ] || return $retval

Modified: head/usr.sbin/bsdconfig/password/share/password.subr
==============================================================================
--- head/usr.sbin/bsdconfig/password/share/password.subr        Sun Jun  2 
04:30:03 2013        (r251241)
+++ head/usr.sbin/bsdconfig/password/share/password.subr        Sun Jun  2 
05:45:25 2013        (r251242)
@@ -69,10 +69,9 @@ f_dialog_input_password()
        #
        # Loop until the user provides taint-free/valid input
        #
-       local retval _password1 _password2
+       local _password1 _password2
        while :; do
-               local dialog_inputbox
-               dialog_inputbox=$( $DIALOG \
+               _password1=$( $DIALOG \
                        --title "$DIALOG_TITLE"         \
                        --backtitle "$DIALOG_BACKTITLE" \
                        --hline "$hline"                \
@@ -82,16 +81,11 @@ f_dialog_input_password()
                        --passwordbox "$msg"            \
                        $height1 $width1                \
                        2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
-               )
+               ) || return $?
+                       # Return if user either pressed ESC or chose Cancel/No
+               debug= f_dialog_line_sanitize _password1
 
-               retval=$?
-               setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
-               _password1=$( f_dialog_inputstr )
-
-               # Return if user has either pressed ESC or chosen Cancel/No
-               [ $retval -eq $SUCCESS ] || return $retval
-
-               dialog_inputbox=$( $DIALOG \
+               _password2=$( $DIALOG \
                        --title "$DIALOG_TITLE"         \
                        --backtitle "$DIALOG_BACKTITLE" \
                        --hline "$hline"                \
@@ -101,14 +95,9 @@ f_dialog_input_password()
                        --passwordbox "$rmsg"           \
                        $height2 $width2                \
                        2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
-               )
-
-               retval=$?
-               setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
-               _password2=$( f_dialog_inputstr )
-
-               # Return if user has either pressed ESC or chosen Cancel/No
-               [ $retval -eq $SUCCESS ] || return $retval
+               ) || return $?
+                       # Return if user either pressed ESC or chose Cancel/No
+               debug= f_dialog_line_sanitize _password2
 
                # Check for NULL entry
                if ! [ "$_password1" -o "$_password2" ]; then

Modified: head/usr.sbin/bsdconfig/share/dialog.subr
==============================================================================
--- head/usr.sbin/bsdconfig/share/dialog.subr   Sun Jun  2 04:30:03 2013        
(r251241)
+++ head/usr.sbin/bsdconfig/share/dialog.subr   Sun Jun  2 05:45:25 2013        
(r251242)
@@ -144,6 +144,48 @@ f_dialog_data_sanitize()
        done
 }
 
+# f_dialog_line_sanitize $var_to_edit ...
+#
+# When using dialog(1) or Xdialog(1) sometimes unintended warnings or errors
+# are generated from underlying libraries. For example, if $LANG is set to an
+# invalid or unknown locale, the warnings from the Xdialog(1) libraries will
+# clutter the output. This function helps by providing a centralied function
+# that removes spurious warnings from the dialog(1) (or Xdialog(1)) response.
+#
+# Simply pass the name of one or more variables that need to be sanitized.
+# After execution, the variables will hold their newly-sanitized data.
+#
+# This function, unlike f_dialog_data_sanitize(), also removes leading/trailing
+# whitespace from each line.
+#
+f_dialog_line_sanitize()
+{
+       if [ "$#" -eq 0 ]; then
+               f_dprintf "%s: called with zero arguments" \
+                         f_dialog_response_sanitize
+               return $FAILURE
+       fi
+
+       local __var_to_edit
+       for __var_to_edit in $*; do
+               # Skip warnings and trim leading/trailing whitespace
+               setvar $__var_to_edit "$( f_getvar $__var_to_edit | awk '
+                       BEGIN { data = 0 }
+                       {
+                               if ( ! data )
+                               {
+                                       if ( $0 ~ /^$/ ) next
+                                       if ( $0 ~ /^Gdk-WARNING \*\*:/ ) next
+                                       data = 1
+                               }
+                               sub(/^[[:space:]]*/, "")
+                               sub(/[[:space:]]*$/, "")
+                               print
+                       }
+               ' )"
+       done
+}
+
 ############################################################ TITLE FUNCTIONS
 
 # f_dialog_title [$new_title]
@@ -1588,33 +1630,45 @@ f_dialog_noyes()
 
 ############################################################ INPUT FUNCTIONS
 
-# f_dialog_inputstr
+# f_dialog_inputstr_store [-s] $text
+#
+# Store some text from a dialog(1) inputbox to be retrieved later by
+# f_dialog_inputstr_fetch(). If the first argument is `-s', the text is
+# sanitized before being stored.
+#
+f_dialog_inputstr_store()
+{
+       local sanitize=
+       [ "$1" = "-s" ] && sanitize=1 && shift 1 # -s
+       local text="$1"
+
+       # Sanitize the line before storing it if desired
+       [ "$sanitize" ] && f_dialog_line_sanitize text
+
+       setvar DIALOG_INPUTBOX_$$ "$text"
+}
+
+# f_dialog_inputstr_fetch [$var_to_set]
 #
 # Obtain the inputstr entered by the user from the most recently displayed
-# dialog(1) inputbox and clean up any temporary files/variables.
+# dialog(1) inputbox (previously stored with f_dialog_inputstr_store() above).
+# If $var_to_set is NULL or missing, output is printed to stdout (which is less
+# recommended due to performance degradation; in a loop for example).
 #
-f_dialog_inputstr()
+f_dialog_inputstr_fetch()
 {
-       # Skip warnings and trim leading/trailing whitespace from user input
-       eval echo \"\$DIALOG_INPUTBOX_$$\" | awk '
-               BEGIN { found = 0 }
-               {
-                       if ( ! found )
-                       {
-                               if ( $0 ~ /^$/ ) next
-                               if ( $0 ~ /^Gdk-WARNING \*\*:/ ) next
-                               found = 1
-                       }
-                       sub(/^[[:space:]]*/, "")
-                       sub(/[[:space:]]*$/, "")
-                       print
-               }
-       '
+       local __var_to_set="$1" __cp
+
+       debug= f_getvar DIALOG_INPUTBOX_$$ "${__var_to_set:-__cp}" # get data
        setvar DIALOG_INPUTBOX_$$ "" # scrub memory in case data was sensitive
+
+       # Return the line on standard-out if desired
+       [ "$__var_to_set" ] || echo "$__cp"
+
        return $SUCCESS
 }
 
-# f_dialog_input $prompt [$init [$hline]]
+# f_dialog_input $var_to_set $prompt [$init [$hline]]
 #
 # Prompt the user with a dialog(1) inputbox to enter some value. The inputbox
 # remains until the the user presses ENTER or ESC, or otherwise ends the
@@ -1629,34 +1683,38 @@ f_dialog_inputstr()
 #
 f_dialog_input()
 {
-       local prompt="$1" init="$2" hline="$3"
-       local height width
-       f_dialog_inputbox_size height width \
+       local __var_to_set="$1" __prompt="$2" __init="$3" __hline="$4"
+
+       # NOTE: Function name appended to prevent __var_{height,width} values
+       #       from becoming local (and thus preventing setvar from working).
+       local __height_input __width_input
+       f_dialog_inputbox_size __height_input __width_input \
                "$DIALOG_TITLE" "$DIALOG_BACKTITLE" \
-               "$prompt" "$init" "$hline"
+               "$__prompt" "$__init" "$__hline"
 
-       local opterm="--"
-       [ "$USE_XDIALOG" ] && opterm=
+       local __opterm="--"
+       [ "$USE_XDIALOG" ] && __opterm=
 
-       local dialog_input
-       dialog_input=$(
+       local __dialog_input
+       __dialog_input=$(
                $DIALOG \
                        --title "$DIALOG_TITLE"         \
                        --backtitle "$DIALOG_BACKTITLE" \
-                       --hline "$hline"                \
+                       --hline "$__hline"              \
                        --ok-label "$msg_ok"            \
                        --cancel-label "$msg_cancel"    \
-                       --inputbox "$prompt"            \
-                       $height $width                  \
-                       $opterm "$init"                 \
+                       --inputbox "$__prompt"          \
+                       $__height_input $__width_input  \
+                       $__opterm "$__init"             \
                        2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
        )
-       local retval=$?
+       local __retval=$?
 
-       setvar DIALOG_INPUTBOX_$$ "$dialog_input"
-       f_dialog_inputstr
+       # Remove warnings and leading/trailing whitespace from user input
+       f_dialog_line_sanitize __dialog_input
 
-       return $retval
+       setvar "$__var_to_set" "$__dialog_input"
+       return $__retval
 }
 
 ############################################################ MENU FUNCTIONS

Modified: head/usr.sbin/bsdconfig/share/media/tcpip.subr
==============================================================================
--- head/usr.sbin/bsdconfig/share/media/tcpip.subr      Sun Jun  2 04:30:03 
2013        (r251241)
+++ head/usr.sbin/bsdconfig/share/media/tcpip.subr      Sun Jun  2 05:45:25 
2013        (r251242)
@@ -1422,29 +1422,23 @@ f_device_dialog_tcp()
                                                "$_netmask" \
                                                && break ;;
                                "$msg_host_name_including_domain:")
-                                       cp=$( f_dialog_input "$cp" \
-                                                            "$_hostname"
-                                           ) && _hostname="$cp" ;;
+                                       f_dialog_input cp "$cp" "$_hostname" \
+                                               && _hostname="$cp" ;;
                                "$msg_ipv4_gateway:")
-                                       cp=$( f_dialog_input "$cp" \
-                                                            "$_gateway"
-                                           ) && _gateway="$cp" ;;
+                                       f_dialog_input cp "$cp" "$_gateway" \
+                                               && _gateway="$cp" ;;
                                "$msg_name_server:")
-                                       cp=$( f_dialog_input "$cp" \
-                                                            "$_nameserver"
-                                           ) && _nameserver="$cp" ;;
+                                       f_dialog_input cp "$cp" "$_nameserver" \
+                                               && _nameserver="$cp" ;;
                                "$msg_ipv4_address:")
-                                       cp=$( f_dialog_input "$cp" \
-                                                            "$_ipaddr"
-                                           ) && _ipaddr="$cp" ;;
+                                       f_dialog_input cp "$cp" "$_ipaddr" \
+                                               && _ipaddr="$cp" ;;
                                "$msg_netmask:")
-                                       cp=$( f_dialog_input "$cp" \
-                                                            "$_netmask"
-                                           ) && _netmask="$cp" ;;
+                                       f_dialog_input cp "$cp" "$_netmask" \
+                                               && _netmask="$cp" ;;
                                "$msg_extra_options_to_ifconfig")
-                                       cp=$( f_dialog_input "$cp" \
-                                                            "$_extras"
-                                           ) && _extras="$cp" ;;
+                                       f_dialog_input cp "$cp" "$_extras" \
+                                               && _extras="$cp" ;;
                                esac
                        done
 

Modified: head/usr.sbin/bsdconfig/share/mustberoot.subr
==============================================================================
--- head/usr.sbin/bsdconfig/share/mustberoot.subr       Sun Jun  2 04:30:03 
2013        (r251241)
+++ head/usr.sbin/bsdconfig/share/mustberoot.subr       Sun Jun  2 05:45:25 
2013        (r251242)
@@ -177,8 +177,7 @@ f_become_root_via_sudo()
                                [ $retval -eq 255 ] &&
                                        f_die $retval "$password"
                        else
-                               local dialog_inputbox
-                               dialog_inputbox=$( $DIALOG \
+                               password=$( $DIALOG \
                                        --title "$DIALOG_TITLE"         \
                                        --backtitle "$DIALOG_BACKTITLE" \
                                        --hline "$hline"                \
@@ -188,14 +187,9 @@ f_become_root_via_sudo()
                                        --passwordbox "$msg"            \
                                        $height $width                  \
                                        2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
-                               )
-                               retval=$?
-                               setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
-                               password=$( f_dialog_inputstr )
+                               ) || exit $?
                        fi
-
-                       # Exit if the user cancelled.
-                       [ $retval -eq $SUCCESS ] || exit $retval
+                       debug= f_dialog_line_sanitize password
 
                        #
                        # Validate sudo(8) credentials

Modified: head/usr.sbin/bsdconfig/share/variable.subr
==============================================================================
--- head/usr.sbin/bsdconfig/share/variable.subr Sun Jun  2 04:30:03 2013        
(r251241)
+++ head/usr.sbin/bsdconfig/share/variable.subr Sun Jun  2 05:45:25 2013        
(r251242)
@@ -93,8 +93,7 @@ f_variable_get_value()
 
        if ! { f_getvar $var cp && ! f_interactive; }; then
                shift 1 # var
-               cp=$( f_dialog_input "$( printf "$@" )" "$cp" ) &&
-                       setvar $var "$cp"
+               f_dialog_input cp "$( printf "$@" )" "$cp" && setvar $var "$cp"
        fi
 
        return $SUCCESS

Modified: head/usr.sbin/bsdconfig/startup/misc
==============================================================================
--- head/usr.sbin/bsdconfig/startup/misc        Sun Jun  2 04:30:03 2013        
(r251241)
+++ head/usr.sbin/bsdconfig/startup/misc        Sun Jun  2 05:45:25 2013        
(r251242)
@@ -303,7 +303,7 @@ dialog_input_value()
        local prompt="$1" _input="$2"
 
        f_dialog_title "$msg_value_required"
-       _input=$( f_dialog_input "$prompt" "$_input" "$hline_alnum_tab_enter" )
+       f_dialog_input _input "$prompt" "$_input" "$hline_alnum_tab_enter"
        local retval=$?
        f_dialog_title_restore
 

Modified: head/usr.sbin/bsdconfig/startup/share/rcconf.subr
==============================================================================
--- head/usr.sbin/bsdconfig/startup/share/rcconf.subr   Sun Jun  2 04:30:03 
2013        (r251241)
+++ head/usr.sbin/bsdconfig/startup/share/rcconf.subr   Sun Jun  2 05:45:25 
2013        (r251242)
@@ -454,9 +454,8 @@ f_dialog_input_rcvar()
        while :; do
 
                # Return if user either pressed ESC or chosen Cancel/No
-               _input=$( f_dialog_input "$msg_please_enter_rcvar_name" \
-                                        "$_input" "$hline_alnum_tab_enter"
-                       ) || return
+               f_dialog_input _input "$msg_please_enter_rcvar_name" \
+                              "$_input" "$hline_alnum_tab_enter" || return
 
                # Check for invalid entry (1of2)
                if ! echo "$_input" | grep -q "^[[:alpha:]_]"; then

Modified: head/usr.sbin/bsdconfig/startup/share/rcedit.subr
==============================================================================
--- head/usr.sbin/bsdconfig/startup/share/rcedit.subr   Sun Jun  2 04:30:03 
2013        (r251241)
+++ head/usr.sbin/bsdconfig/startup/share/rcedit.subr   Sun Jun  2 05:45:25 
2013        (r251242)
@@ -68,9 +68,8 @@ f_dialog_rcedit()
        fi
 
        # Return if user has either pressed ESC or chosen Cancel/No
-       _input=$( f_dialog_input "$msg" "$_input" \
-                                "$hline_alnum_punc_tab_enter"
-               ) || return
+       f_dialog_input _input "$msg" "$_input" \
+                      "$hline_alnum_punc_tab_enter" || return
 
        # Return if the value has not changed from current
        local cur_val="$( f_sysrc_get "$var" )"

Modified: head/usr.sbin/bsdconfig/usermgmt/share/group_input.subr
==============================================================================
--- head/usr.sbin/bsdconfig/usermgmt/share/group_input.subr     Sun Jun  2 
04:30:03 2013        (r251241)
+++ head/usr.sbin/bsdconfig/usermgmt/share/group_input.subr     Sun Jun  2 
05:45:25 2013        (r251242)
@@ -125,9 +125,8 @@ f_dialog_input_group_name()
        while :; do
 
                # Return if user has either pressed ESC or chosen Cancel/No
-               _input=$( f_dialog_input "$msg_group" "$_input" \
-                                        "$hline_alnum_tab_enter"
-                       ) || return
+               f_dialog_input _input "$msg_group" "$_input" \
+                              "$hline_alnum_tab_enter" || return
 
                # Check for no-change
                [ "$_input" = "$_name" ] && return $SUCCESS
@@ -198,8 +197,7 @@ f_dialog_input_group_password()
        #
        local retval _password1 _password2
        while :; do
-               local dialog_inputbox
-               dialog_inputbox=$( $DIALOG \
+               _password1=$( $DIALOG \
                        --title "$DIALOG_TITLE"         \
                        --backtitle "$DIALOG_BACKTITLE" \
                        --hline "$hline"                \
@@ -210,15 +208,13 @@ f_dialog_input_group_password()
                        $height1 $width1                \
                        2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
                )
-
                retval=$?
-               setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
-               _password1=$( f_dialog_inputstr )
+               debug= f_dialog_line_sanitize _password1
 
                # Return if user has either pressed ESC or chosen Cancel/No
                [ $retval -eq $SUCCESS ] || return $retval
 
-               dialog_inputbox=$( $DIALOG \
+               _password2=$( $DIALOG \
                        --title "$DIALOG_TITLE"         \
                        --backtitle "$DIALOG_BACKTITLE" \
                        --hline "$hline"                \
@@ -229,10 +225,8 @@ f_dialog_input_group_password()
                        $height2 $width2                \
                        2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
                )
-
                retval=$?
-               setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
-               _password2=$( f_dialog_inputstr )
+               debug= f_dialog_line_sanitize _password2
 
                # Return if user has either pressed ESC or chosen Cancel/No
                [ $retval -eq $SUCCESS ] || return $retval
@@ -275,9 +269,8 @@ f_dialog_input_group_gid()
        local _input="$1"
 
        # Return if user has either pressed ESC or chosen Cancel/No
-       _input=$( f_dialog_input "$msg_group_id_leave_empty_for_default" \
-                                "$_input" "$hline_num_tab_enter"
-               ) || return
+       f_dialog_input _input "$msg_group_id_leave_empty_for_default" \
+                      "$_input" "$hline_num_tab_enter" || return
 
        group_gid="$_input"
        save_flag=1
@@ -392,11 +385,10 @@ f_dialog_input_group_members()
                2) # Enter Group Members manually
                        msg="$msg_group_members ($msg_separated_by_commas)"
 
-                       # Return to previous menu if user has either
-                       #     pressed ESC or chosen Cancel/No
-                       _group_members=$( f_dialog_input "$msg" "$_input" \
-                                                        "$hline_num_tab_enter"
-                                       ) || continue
+                       f_dialog_input _group_members "$msg" "$_input" \
+                                      "$hline_num_tab_enter" || continue
+                               # Return to previous menu if user either
+                               # pressed ESC or chose Cancel/No
 
                        _input="$_group_members"
                        ;;

Modified: head/usr.sbin/bsdconfig/usermgmt/share/user_input.subr
==============================================================================
--- head/usr.sbin/bsdconfig/usermgmt/share/user_input.subr      Sun Jun  2 
04:30:03 2013        (r251241)
+++ head/usr.sbin/bsdconfig/usermgmt/share/user_input.subr      Sun Jun  2 
05:45:25 2013        (r251242)
@@ -226,9 +226,8 @@ f_dialog_input_name()
        while :; do
 
                # Return if user has either pressed ESC or chosen Cancel/No
-               _input=$( f_dialog_input "$msg_login" "$_input" \
-                                        "$hline_alnum_tab_enter"
-                       ) || return
+               f_dialog_input _input "$msg_login" "$_input" \
+                              "$hline_alnum_tab_enter" || return
 
                # Check for no-change
                [ "$_input" = "$_name" ] && return $SUCCESS
@@ -297,10 +296,9 @@ f_dialog_input_password()
        #
        # Loop until the user provides taint-free/valid input
        #
-       local retval _password1 _password2
+       local _password1 _password2
        while :; do
-               local dialog_inputbox
-               dialog_inputbox=$( $DIALOG \
+               _password1=$( $DIALOG \
                        --title "$DIALOG_TITLE"         \
                        --backtitle "$DIALOG_BACKTITLE" \
                        --hline "$hline"                \
@@ -310,13 +308,11 @@ f_dialog_input_password()
                        --passwordbox "$msg"            \
                        $height1 $width1                \
                        2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
-               )
-
-               retval=$?
-               setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
-               _password1=$( f_dialog_inputstr )
+               ) || return $?
+                       # Return if user either pressed ESC or chose Cancel/No
+               debug= f_dialog_line_sanitize _password1
 
-               dialog_inputbox=$( $DIALOG \
+               _password2=$( $DIALOG \
                        --title "$DIALOG_TITLE"         \
                        --backtitle "$DIALOG_BACKTITLE" \
                        --hline "$hline"                \
@@ -326,14 +322,9 @@ f_dialog_input_password()
                        --passwordbox "$rmsg"           \
                        $height2 $width2                \
                        2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
-               )
-
-               retval=$?
-               setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
-               _password2=$( f_dialog_inputstr )
-
-               # Return if user has either pressed ESC or chosen Cancel/No
-               [ $retval -eq $SUCCESS ] || return $retval
+               ) || return $?
+                       # Return if user either pressed ESC or chose Cancel/No
+               debug= f_dialog_line_sanitize _password2
 
                # Check for password mismatch
                if [ "$_password1" != "$_password2" ]; then
@@ -373,9 +364,8 @@ f_dialog_input_gecos()
        local _input="$1"
 
        # Return if user has either pressed ESC or chosen Cancel/No
-       _input=$( f_dialog_input "$msg_full_name" "$_input" \
-                                "$hline_alnum_punc_tab_enter"
-               ) || return
+       f_dialog_input _input "$msg_full_name" "$_input" \
+                      "$hline_alnum_punc_tab_enter" || return
 
        pw_gecos="$_input"
        save_flag=1
@@ -396,9 +386,8 @@ f_dialog_input_uid()
        local _input="$1"
 
        # Return if user has either pressed ESC or chosen Cancel/No
-       _input=$( f_dialog_input "$msg_user_id_leave_empty_for_default" \
-                                "$_input" "$hline_num_tab_enter"
-               ) || return
+       f_dialog_input _input "$msg_user_id_leave_empty_for_default" \
+                      "$_input" "$hline_num_tab_enter" || return
 
        pw_uid="$_input"
        save_flag=1
@@ -419,9 +408,8 @@ f_dialog_input_gid()
        local _input="$1"
 
        # Return if user has either pressed ESC or chosen Cancel/No
-       _input=$( f_dialog_input "$msg_group_id_leave_empty_for_default" \
-                                "$_input" "$hline_num_tab_enter"
-               ) || return
+       f_dialog_input _input "$msg_group_id_leave_empty_for_default" \
+                      "$_input" "$hline_num_tab_enter" || return
 
        pw_gid="$_input"
        save_flag=1
@@ -442,9 +430,8 @@ f_dialog_input_class()
        local _input="$1"
 
        # Return if user has either pressed ESC or chosen Cancel/No
-       _input=$( f_dialog_input "$msg_login_class" "$_input" \
-                                "$hline_alnum_tab_enter"
-               ) || return
+       f_dialog_input _input "$msg_login_class" "$_input" \
+                      "$hline_alnum_tab_enter" || return
 
        pw_class="$_input"
        save_flag=1
@@ -585,10 +572,9 @@ f_dialog_input_change()
                                ret_days=$(( $ret_days + 1 ))
 
                        # Return to menu if either ESC or Cancel/No
-                       ret_days=$( f_dialog_input \
+                       f_dialog_input ret_days \
                                "$msg_password_expires_in_how_many_days" \
-                               "$ret_days" "$hline"
-                       ) || continue
+                               "$ret_days" "$hline" || continue
 
                        # Taint-check the user's input
                        if ! f_isinteger "$ret_days"; then
@@ -606,16 +592,12 @@ f_dialog_input_change()
                        break ;;
 
                4) # Enter value manually
-                       local ret_secs
-
                        msg=$( printf "$msg_number_of_seconds_since_epoch" \
                                      "$( date -r 1 "+%c %Z" )" )
 
                        # Return to menu if either ESC or Cancel/No
-                       ret_secs=$( f_dialog_input \
-                                       "$msg" "$_input" "$hline" ) || continue
-
-                       _input="$ret_secs"
+                       f_dialog_input _input \
+                                      "$msg" "$_input" "$hline" || continue
 
                        # Taint-check the user's input
                        if ! f_isinteger "${_input:-0}"; then
@@ -771,10 +753,9 @@ f_dialog_input_expire()
                                ret_days=$(( $ret_days + 1 ))
 
                        # Return to menu if either ESC or Cancel/No
-                       ret_days=$( f_dialog_input \
+                       f_dialog_input ret_days \
                                "$msg_account_expires_in_how_many_days" \
-                               "$ret_days" "$hline"
-                       ) || continue
+                               "$ret_days" "$hline" || continue
 
                        # Taint-check the user's input
                        if ! f_isinteger "$ret_days"; then
@@ -792,16 +773,12 @@ f_dialog_input_expire()
                        break ;;
 
                4) # Enter value manually
-                       local ret_secs
-
                        msg=$( printf "$msg_number_of_seconds_since_epoch" \
                                      "$( date -r 1 "+%c %Z" )" )
 
                        # Return to menu if either ESC or Cancel/No
-                       ret_secs=$( f_dialog_input \
-                                       "$msg" "$_input" "$hline" ) || continue
-
-                       _input="$ret_secs"
+                       f_dialog_input _input "$msg" \
+                                      "$_input" "$hline" || continue
 
                        # Taint-check the user's input
                        if ! f_isinteger "${_input:-0}"; then
@@ -837,9 +814,8 @@ f_dialog_input_home_dir()
        local _input="$1"
 
        # Return if user has either pressed ESC or chosen Cancel/No
-       _input=$( f_dialog_input "$msg_home_directory" "$_input" \
-                                "$hline_alnum_punc_tab_enter"
-               ) || return
+       f_dialog_input _input "$msg_home_directory" "$_input" \
+                      "$hline_alnum_punc_tab_enter" || return
 
        pw_home_dir="$_input"
        save_flag=1
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