blob: 9e7261398b950156d9daf2cec5bf47f7720eabda (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
#
# Chet Ramey <chet.ramey@case.edu>
#
# Copyright 2002 Chester Ramey
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# TThis program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# inet2hex - Internet address conversion, dotted-decimal to hex
#
inet2hex ()
{
local IFS
IFS=.
set -- $1
if (( $# != 4 )); then
echo "inet2hex: incorrect input format: $1" >&2
echo "inet2hex: usage: inet2hex XX.XX.XX.XX" >&2
return 2
fi
printf "0x%02x%02x%02x%02x\n" $1 $2 $3 $4
}
#
# hex2inet - Internet address conversion, hex to dotted-decimal
#
hex2inet ()
{
local x1 x2 x3 x4
local rev
OPTIND=1
while getopts "r" o
do
case "$o" in
r) rev=true;;
*) echo "hex2inet: usage: hex2inet [-r] [0x]XXXXXXXX" >&2 ; exit 2;;
esac
done
shift $(( $OPTIND - 1 ))
case "$1" in
0x*) h=${1#??} ;;
*) h=$1 ;;
esac
if (( ${#h} != 8 )); then
echo "hex2inet: $h not in inet format" >&2
echo "hex2inet: usage: hex2inet [0x]XXXXXXXX" >&2
return 2
fi
x1=$(( 0x${h:0:2} ))
x2=$(( 0x${h:2:2} ))
x3=$(( 0x${h:4:2} ))
x4=$(( 0x${h:6:2} ))
if [ -z "$rev" ] ; then
printf "%d.%d.%d.%d\n" $x1 $x2 $x3 $x4
else
printf "%d.%d.%d.%d\n" $x4 $x3 $x2 $x1
fi
return 0
}
|
