1 if [ ! "$_NETWORKING_HOSTNAME_SUBR" ]; then _NETWORKING_HOSTNAME_SUBR=1
3 # Copyright (c) 2006-2013 Devin Teske
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions
9 # 1. Redistributions of source code must retain the above copyright
10 # notice, this list of conditions and the following disclaimer.
11 # 2. Redistributions in binary form must reproduce the above copyright
12 # notice, this list of conditions and the following disclaimer in the
13 # documentation and/or other materials provided with the distribution.
15 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 ############################################################ INCLUDES
31 BSDCFG_SHARE="/usr/share/bsdconfig"
32 . $BSDCFG_SHARE/common.subr || exit 1
33 f_dprintf "%s: loading includes..." networking/hostname.subr
34 f_include $BSDCFG_SHARE/dialog.subr
35 f_include $BSDCFG_SHARE/networking/common.subr
36 f_include $BSDCFG_SHARE/networking/resolv.subr
37 f_include $BSDCFG_SHARE/sysrc.subr
39 BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="120.networking"
40 f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
42 ############################################################ FUNCTIONS
44 # f_dialog_hnerror $error $hostname
46 # Display a msgbox with the appropriate error message for an error returned by
47 # the f_validate_hostname function.
51 local error="$1" fqhn="$2"
53 [ ${error:-0} -ne 0 ] || return $SUCCESS
56 1) f_show_msg "$msg_hostname_label_contains_invalid_chars" "$fqhn" ;;
58 "$msg_hostname_label_starts_or_ends_with_hyphen" "$fqhn" ;;
59 3) f_show_msg "$msg_hostname_label_is_null" "$fqhn" ;;
60 63) f_show_msg "$msg_hostname_label_exceeds_max_length" "$fqhn" ;;
61 255) f_show_msg "$msg_hostname_exceeds_max_length" "$fqhn" ;;
65 # f_dialog_validate_hostname $hostname
67 # Returns zero if the given argument (a fully-qualified hostname) is compliant
68 # with standards set-forth in RFC's 952 and 1123 of the Network Working Group:
70 # RFC 952 - DoD Internet host table specification
71 # https://tools.ietf.org/html/rfc952
73 # RFC 1123 - Requirements for Internet Hosts - Application and Support
74 # https://tools.ietf.org/html/rfc1123
76 # If the hostname is determined to be invalid, the appropriate error will be
77 # displayed using the f_dialog_hnerror function above.
79 f_dialog_validate_hostname()
83 f_validate_hostname "$fqhn"
86 # Produce an appropriate error message if necessary.
87 [ $retval -eq $SUCCESS ] || f_dialog_hnerror $retval "$fqhn"
92 # f_dialog_input_hostname
94 # Edits the current hostname.
96 f_dialog_input_hostname()
98 local funcname=f_dialog_input_hostname
99 local hostname="$( f_sysrc_get 'hostname:-$(hostname)' )"
100 local hostname_orig="$hostname" # for change-tracking
103 if [ "$USE_XDIALOG" ]; then
104 msg="$xmsg_please_enter_fqhn"
106 msg="$msg_please_enter_fqhn"
110 # Loop until the user provides taint-free input.
113 f_dialog_input hostname "$msg" "$hostname" \
114 "$hline_alnum_punc_tab_enter" || return $?
115 # Taint-check the user's input
116 f_dialog_validate_hostname "$hostname" && break
120 # Save hostname only if the user changed the hostname.
122 if [ "$hostname" != "$hostname_orig" ]; then
123 f_dialog_info "$msg_saving_hostname"
124 f_eval_catch $funcname f_sysrc_set \
125 'f_sysrc_set hostname "%s"' "$hostname"
129 # Update resolv.conf(5) search/domain directives
131 f_dialog_resolv_conf_update "$hostname"
134 # Only ask to apply setting if the current hostname is different than
135 # the stored configuration (in rc.conf(5)).
137 if [ "$( hostname )" != "$( f_sysrc_get hostname )" ]; then
138 [ ! "$USE_XDIALOG" ] && f_dialog_clear
141 # If connected via ssh(1) and performing X11-Forwarding, don't
142 # allow the hostname to be changed to prevent the fatal error
143 # "X11 connection rejected because of wrong authentication."
145 if [ "$USE_XDIALOG" -a "$SSH_CONNECTION" ]; then
146 f_show_msg "$msg_activate_hostname_x11warning" \
147 "$( hostname )" "$hostname"
149 f_yesno "$msg_activate_hostname" \
150 "$( hostname )" "$hostname" \
151 && hostname "$hostname"
158 ############################################################ MAIN
160 f_dprintf "%s: Successfully loaded." networking/hostname.subr
162 fi # ! $_NETWORKING_HOSTNAME_SUBR