161 lines
5.0 KiB
Plaintext
161 lines
5.0 KiB
Plaintext
if [ ! "$_NETWORKING_HOSTNAME_SUBR" ]; then _NETWORKING_HOSTNAME_SUBR=1
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#
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# Copyright (c) 2006-2013 Devin Teske
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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############################################################ INCLUDES
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BSDCFG_SHARE="/usr/share/bsdconfig"
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. $BSDCFG_SHARE/common.subr || exit 1
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f_dprintf "%s: loading includes..." networking/hostname.subr
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f_include $BSDCFG_SHARE/dialog.subr
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f_include $BSDCFG_SHARE/networking/common.subr
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f_include $BSDCFG_SHARE/networking/resolv.subr
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f_include $BSDCFG_SHARE/sysrc.subr
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BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="120.networking"
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f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
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############################################################ FUNCTIONS
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# f_dialog_hnerror $error $hostname
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#
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# Display a msgbox with the appropriate error message for an error returned by
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# the f_validate_hostname function.
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#
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f_dialog_hnerror()
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{
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local error="$1" fqhn="$2"
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[ ${error:-0} -ne 0 ] || return $SUCCESS
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case "$error" in
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1) f_show_msg "$msg_hostname_label_contains_invalid_chars" "$fqhn" ;;
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2) f_show_msg \
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"$msg_hostname_label_starts_or_ends_with_hyphen" "$fqhn" ;;
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3) f_show_msg "$msg_hostname_label_is_null" "$fqhn" ;;
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63) f_show_msg "$msg_hostname_label_exceeds_max_length" "$fqhn" ;;
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255) f_show_msg "$msg_hostname_exceeds_max_length" "$fqhn" ;;
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esac
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}
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# f_dialog_validate_hostname $hostname
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#
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# Returns zero if the given argument (a fully-qualified hostname) is compliant
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# with standards set-forth in RFC's 952 and 1123 of the Network Working Group:
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#
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# RFC 952 - DoD Internet host table specification
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# http://tools.ietf.org/html/rfc952
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#
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# RFC 1123 - Requirements for Internet Hosts - Application and Support
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# http://tools.ietf.org/html/rfc1123
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#
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# If the hostname is determined to be invalid, the appropriate error will be
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# displayed using the f_dialog_hnerror function above.
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#
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f_dialog_validate_hostname()
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{
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local fqhn="$1"
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f_validate_hostname "$fqhn"
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local retval=$?
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# Produce an appropriate error message if necessary.
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[ $retval -eq $SUCCESS ] || f_dialog_hnerror $retval "$fqhn"
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return $retval
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}
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# f_dialog_input_hostname
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#
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# Edits the current hostname.
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#
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f_dialog_input_hostname()
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{
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local hostname="$( f_sysrc_get 'hostname:-$(hostname)' )"
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local hostname_orig="$hostname" # for change-tracking
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local msg
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if [ "$USE_XDIALOG" ]; then
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msg="$xmsg_please_enter_fqhn"
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else
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msg="$msg_please_enter_fqhn"
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fi
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#
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# Loop until the user provides taint-free input.
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#
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while :; do
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f_dialog_input hostname "$msg" "$hostname" \
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"$hline_alnum_punc_tab_enter" || return
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# Taint-check the user's input
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f_dialog_validate_hostname "$hostname" && break
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done
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#
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# Save hostname only if the user changed the hostname.
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#
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if [ "$hostname" != "$hostname_orig" ]; then
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f_dialog_info "$msg_saving_hostname"
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f_sysrc_set hostname "$hostname"
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fi
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#
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# Update resolv.conf(5) search/domain directives
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#
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f_dialog_resolv_conf_update "$hostname"
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#
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# Only ask to apply setting if the current hostname is different than
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# the stored configuration (in rc.conf(5)).
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#
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if [ "$( hostname )" != "$( f_sysrc_get hostname )" ]; then
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[ ! "$USE_XDIALOG" ] && f_dialog_clear
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#
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# If connected via ssh(1) and performing X11-Forwarding, don't
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# allow the hostname to be changed to prevent the fatal error
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# "X11 connection rejected because of wrong authentication."
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#
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if [ "$USE_XDIALOG" -a "$SSH_CONNECTION" ]; then
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f_show_msg "$msg_activate_hostname_x11warning" \
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"$( hostname )" "$hostname"
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else
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f_yesno "$msg_activate_hostname" \
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"$( hostname )" "$hostname" \
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&& hostname "$hostname"
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fi
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fi
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return $SUCCESS
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}
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############################################################ MAIN
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f_dprintf "%s: Successfully loaded." networking/hostname.subr
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fi # ! $_NETWORKING_HOSTNAME_SUBR
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