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1 #!/bin/sh
2
3 # Copyright (c) 2013 Stefan Huber <shuber@sthu.org>
4 #
5 # Permission is hereby granted, free of charge, to any person
6 # obtaining a copy of this software and associated documentation
7 # files (the "Software"), to deal in the Software without
8 # restriction, including without limitation the rights to use,
9 # copy, modify, merge, publish, distribute, sublicense, and/or sell
10 # copies of the Software, and to permit persons to whom the
11 # Software is furnished to do so, subject to the following
12 # conditions:
13 #
14 # The above copyright notice and this permission notice shall be
15 # included in all copies or substantial portions of the Software.
16 #
17 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
19 # OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
21 # HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
22 # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
24 # OTHER DEALINGS IN THE SOFTWARE.
25
26 set -e
27
28 PROGNAME=$(basename $0)
29
30 usage() {
31 cat <<EOF
32 Increments serial in zonefile by one.
33
34 Usage: $PROGNAME zonefile [OPTIONS]
35
36 Options:
37 -h, --help Print this text.
38 EOF
39 }
40
41 TEMP=`getopt -o "h" --long "help" -n "$PROGNAME" -- "$@"`
42 eval set - "$TEMP"
43
44 while true; do
45 case "$1" in
46 -h | --help )
47 usage
48 exit $STATE_OK ;;
49 -- )
50 shift
51 break ;;
52 * )
53 break ;;
54 esac
55 done
56
57 if [ "$#" = "0" ]; then
58 echo "Not enough arguments."
59 usage
60 exit 1
61 fi
62
63 zonefile=$1
64 if ! [ -r "${zonefile}" ]; then
65 echo "Zone file does not exist: '${zonefile}'"
66 exit 2
67 fi
68
69 getSerialFromZonefile() # <zonefile>
70 {
71 awk '/; serial/{print$1}' "$1"
72 }
73
74 setSerialInZonefile() # <zonefile> <serial>
75 {
76 sed -i -e "s_^\\(.*\\s\\)[0-9]\+\\(\\s\\+; serial.*\\)_\\1$2\\2_g" "$1"
77 }
78
79
80 serial=`getSerialFromZonefile "${zonefile}"`
81 serial=$(( $serial + 1))
82
83 if [ -z "$serial" ]; then
84 echo "Internal error, serial is empty."
85 exit 1
86 fi
87
88 setSerialInZonefile "${zonefile}" "${serial}"
89