[IMPROVED] Refactorizar el script hexroute para mejorar legibilidad
🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
parent
066caaa0b1
commit
e9211614c3
GPG key ID:
83BD2A5F674B7E26
1 changed files with 91 additions and 55 deletions
90
bin/hexroute
90
bin/hexroute
|
|
@ -5,6 +5,7 @@
|
|||
# for Windows(r) clients
|
||||
#
|
||||
# Copyright (c) 2005-2015 Karl McMurdo
|
||||
# Modified: 2025-03-11
|
||||
#
|
||||
# Freely distributable, but please keep header intact
|
||||
#
|
||||
|
|
@ -12,31 +13,43 @@
|
|||
#
|
||||
######################################################################
|
||||
|
||||
# Validate and split an IP address into components
|
||||
# Args: $1 - IP address, $2 - Array name to store components
|
||||
function split_ipaddr() {
|
||||
[ ${1:-X} = X -o "${1}" != ${1//[^.0-9]/} -o ${1:-X} = X \
|
||||
-o "${1//[0-9]/}" != "..." ] && return 1
|
||||
# Validate basic format
|
||||
if [ ${1:-X} = X ] || [ "${1}" != ${1//[^.0-9]/} ] || [ "${1//[0-9]/}" != "..." ]; then
|
||||
return 1
|
||||
fi
|
||||
|
||||
local rval=0
|
||||
local t
|
||||
local T[1]
|
||||
local T[2]
|
||||
local T[3]
|
||||
local T[4]
|
||||
local -a T=([1]="" [2]="" [3]="" [4]="")
|
||||
|
||||
# Split the IP address
|
||||
T[1]=${1%%.*}
|
||||
T[2]=${1#*.}
|
||||
T[2]=${T[2]%%.*}
|
||||
T[3]=${1#*.*.}
|
||||
T[3]=${T[3]%%.*}
|
||||
T[2]=${1#*.}; T[2]=${T[2]%%.*}
|
||||
T[3]=${1#*.*.}; T[3]=${T[3]%%.*}
|
||||
T[4]=${1#*.*.*.}
|
||||
|
||||
# Validate each octet
|
||||
[ ${T[1]} = 0 ] && rval=1
|
||||
for t in 1 2 3 4
|
||||
do
|
||||
|
||||
for t in 1 2 3 4; do
|
||||
[ ${T[${t}]:-999} -gt 255 ] && rval=1
|
||||
eval "${2}[${t}]=${T[${t}]}"
|
||||
done
|
||||
|
||||
return ${rval}
|
||||
}
|
||||
|
||||
# Constants and configuration
|
||||
VERSION="1.0"
|
||||
AUTHOR="Karl McMurdo"
|
||||
YEAR="2015"
|
||||
|
||||
# Usage and help messages
|
||||
USAGE='echo -e "Usage: ${0//*\/} [-v|-h] target/bits [gw] gateway [target/bits [gw] gateway ...]\n\n\tie: ${0} 172.16.0.0/16 gw 192.168.1.1\n" && exit 1'
|
||||
INFO="HexRoute 1.0 Copyright (c) 2015 Karl McMurdo
|
||||
INFO="HexRoute ${VERSION} Copyright (c) ${YEAR} ${AUTHOR}
|
||||
|
||||
Converts human readable route information to a dhcpd hex string
|
||||
|
||||
|
|
@ -44,45 +57,68 @@ Converts human readable route information to a dhcpd hex string
|
|||
Twice also prints option definiton lines for dhcpd.conf
|
||||
-h Prints this message
|
||||
"
|
||||
|
||||
# DHCP configuration strings
|
||||
DHCPHDR="# New Option Type for Windows Client Static Routes
|
||||
option new-static-routes code 249 = string;"
|
||||
DHCPS="option new-static-routes "
|
||||
DHCPE=";"
|
||||
|
||||
# Error messages
|
||||
BADTARG='echo -e "Invalid target network: ${1}" && exit 2'
|
||||
BADBITS='echo -e "Invalid Network bit value: ${1}" && exit 3'
|
||||
BADGW='echo -e "Invalid Gateway: ${2}" && exit 4'
|
||||
|
||||
# Default settings
|
||||
VERBOSE=false
|
||||
EXTRAVERBOSE=false
|
||||
|
||||
while [ "${1:0:1}" = "-" ]
|
||||
do
|
||||
if [ "${1}" = "-v" ]
|
||||
then
|
||||
# Process command line options
|
||||
while [ "${1:0:1}" = "-" ]; do
|
||||
case "${1}" in
|
||||
"-v")
|
||||
$VERBOSE && EXTRAVERBOSE=true
|
||||
VERBOSE=true
|
||||
elif [ "${1}" = "-h" ]
|
||||
then
|
||||
;;
|
||||
"-h")
|
||||
echo "${INFO}"
|
||||
eval "${USAGE}"
|
||||
else
|
||||
;;
|
||||
*)
|
||||
eval "${USAGE}"
|
||||
fi
|
||||
;;
|
||||
esac
|
||||
shift
|
||||
done
|
||||
|
||||
# Check if we have enough arguments
|
||||
[ ${#} -lt 2 ] && eval "${USAGE}"
|
||||
OUT=""
|
||||
|
||||
while [ ${#} -ge 2 ]
|
||||
do
|
||||
# Process routes
|
||||
while [ ${#} -ge 2 ]; do
|
||||
# Parse target network
|
||||
split_ipaddr ${1/\/*/} TARG || eval "${BADTARG}"
|
||||
BITS=${1/*\//}
|
||||
shift
|
||||
[ ${BITS:-X} = X -o "${BITS}" != ${BITS//[^0-9]/} ] && eval "${BADBITS}"
|
||||
[ ${BITS} -gt 32 -o ${BITS} -lt 1 ] && eval "${BADBITS}"
|
||||
|
||||
# Validate bits
|
||||
if [ ${BITS:-X} = X ] || [ "${BITS}" != ${BITS//[^0-9]/} ]; then
|
||||
eval "${BADBITS}"
|
||||
fi
|
||||
|
||||
if [ ${BITS} -gt 32 ] || [ ${BITS} -lt 1 ]; then
|
||||
eval "${BADBITS}"
|
||||
fi
|
||||
|
||||
# Handle optional "gw" keyword
|
||||
[ ${1:-X} = gw ] && shift
|
||||
|
||||
# Parse gateway
|
||||
split_ipaddr ${1:-X} GW || eval "${BADGW}"
|
||||
shift
|
||||
|
||||
# Build output in hex format
|
||||
OUT=${OUT}$( printf ":%02x:%02x" ${BITS} ${TARG[1]} )
|
||||
[ ${BITS} -gt 8 ] && OUT=${OUT}$( printf ":%02x" ${TARG[2]} )
|
||||
[ ${BITS} -gt 16 ] && OUT=${OUT}$( printf ":%02x" ${TARG[3]} )
|
||||
|
|
@ -90,9 +126,9 @@ do
|
|||
OUT=${OUT}$( printf ":%02x:%02x:%02x:%02x" ${GW[@]} )
|
||||
done
|
||||
|
||||
# Output results
|
||||
$EXTRAVERBOSE && echo "${DHCPHDR}"
|
||||
if $VERBOSE
|
||||
then
|
||||
if $VERBOSE; then
|
||||
echo ${DHCPS}${OUT/:/}${DHCPE}
|
||||
else
|
||||
echo ${OUT/:/}
|
||||
|
|
|
|||
Loading…
Reference in a new issue