| netmask.subr (244675) | netmask.subr (247280) |
|---|---|
| 1if [ ! "$_NETWORKING_NETMASK_SUBR" ]; then _NETWORKING_NETMASK_SUBR=1 2# | 1if [ ! "$_NETWORKING_NETMASK_SUBR" ]; then _NETWORKING_NETMASK_SUBR=1 2# |
| 3# Copyright (c) 2006-2012 Devin Teske | 3# Copyright (c) 2006-2013 Devin Teske |
| 4# All Rights Reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 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 --- 7 unchanged lines hidden (view full) --- 19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20# DAMAGES (INLUDING, 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 25# SUCH DAMAGE. 26# | 4# All Rights Reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 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 --- 7 unchanged lines hidden (view full) --- 19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20# DAMAGES (INLUDING, 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 25# SUCH DAMAGE. 26# |
| 27# $FreeBSD: head/usr.sbin/bsdconfig/networking/share/netmask.subr 244675 2012-12-25 10:47:45Z dteske $ | 27# $FreeBSD: head/usr.sbin/bsdconfig/networking/share/netmask.subr 247280 2013-02-25 19:55:32Z dteske $ |
| 28# 29############################################################ INCLUDES 30 31BSDCFG_SHARE="/usr/share/bsdconfig" 32. $BSDCFG_SHARE/common.subr || exit 1 33f_dprintf "%s: loading includes..." networking/netmask.subr 34f_include $BSDCFG_SHARE/dialog.subr 35f_include $BSDCFG_SHARE/strings.subr 36f_include $BSDCFG_SHARE/networking/common.subr 37 38BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="120.networking" 39f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr 40 41############################################################ FUNCTIONS 42 | 28# 29############################################################ INCLUDES 30 31BSDCFG_SHARE="/usr/share/bsdconfig" 32. $BSDCFG_SHARE/common.subr || exit 1 33f_dprintf "%s: loading includes..." networking/netmask.subr 34f_include $BSDCFG_SHARE/dialog.subr 35f_include $BSDCFG_SHARE/strings.subr 36f_include $BSDCFG_SHARE/networking/common.subr 37 38BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="120.networking" 39f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr 40 41############################################################ FUNCTIONS 42 |
| 43# f_ifconfig_netmask $interface 44# 45# Returns the IPv4 subnet mask associated with $interface. 46# 47f_ifconfig_netmask() 48{ 49 local interface="$1" octets 50 octets=$( ifconfig "$interface" 2> /dev/null | awk \ 51 ' 52 BEGIN { found = 0 } 53 ( $1 == "inet" ) \ 54 { 55 printf "%s %s %s %s\n", 56 substr($4,3,2), 57 substr($4,5,2), 58 substr($4,7,2), 59 substr($4,9,2) 60 found = 1 61 exit 62 } 63 END { exit ! found } 64 ' ) || return $FAILURE 65 66 local octet netmask= 67 for octet in $octets; do 68 netmask="$netmask${netmask:+.}$( printf "%u" "0x$octet" )" 69 done 70 echo $netmask 71} 72 73# f_validate_netmask $netmask 74# 75# Returns zero if the given argument (a subnet mask) is of the proper format. 76# 77# The return status for invalid IP address is one of: 78# 1 One or more individual fields within the subnet mask (separated 79# by dots) contains one or more invalid characters. 80# 2 One or more individual fields within the subnet mask are null 81# and/or missing. 82# 3 One or more individual fields within the subnet mask exceeds 83# the maximum of 255 (a full 8-bit register). 84# 4 The subnet mask has either too few or too many fields. 85# 5 One or more individual fields within the subnet mask is an 86# invalid integer (only 0,128,192,224,240,248,252,254,255 are 87# valid integers). 88# 89f_validate_netmask() 90{ 91 local mask="$1" 92 93 ( # Operate within a sub-shell to protect the parent environment 94 95 # Track number of fields for error checking 96 nfields=0 97 98 IFS="." # Split on `dot' 99 for field in $mask; do 100 101 # Return error if the field is null 102 [ "$field" ] || exit 2 103 104 # Return error if not a whole positive integer 105 f_isinteger "$field" || exit 1 106 107 # Return error if the field exceeds 255 108 [ $field -gt 255 ] && exit 3 109 110 # Return error if the field is an invalid integer 111 case "$field" in 112 0|128|192|224|240|248|252|254|255) :;; 113 *) exit 5;; 114 esac 115 116 nfields=$(( $nfields + 1 )) 117 118 done 119 120 [ $nfields -eq 4 ] || exit 4 121 ) 122} 123 | |
| 124# f_dialog_maskerror $error $netmask 125# 126# Display a msgbox with the appropriate error message for an error returned by 127# the f_validate_netmask function. 128# 129f_dialog_maskerror() 130{ 131 local error="$1" netmask="$2" --- 86 unchanged lines hidden --- | 43# f_dialog_maskerror $error $netmask 44# 45# Display a msgbox with the appropriate error message for an error returned by 46# the f_validate_netmask function. 47# 48f_dialog_maskerror() 49{ 50 local error="$1" netmask="$2" --- 86 unchanged lines hidden --- |