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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 18:33:23 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 18:33:23 +0000 |
commit | 1d5cace9db9aef76f26b2d7ba54bbb76443b00b2 (patch) | |
tree | 314a15dd1aa103da13bdc83ba1d2105a290bc5ba /examples/functions/inetaddr | |
parent | Initial commit. (diff) | |
download | bash-1d5cace9db9aef76f26b2d7ba54bbb76443b00b2.tar.xz bash-1d5cace9db9aef76f26b2d7ba54bbb76443b00b2.zip |
Adding upstream version 5.0.upstream/5.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | examples/functions/inetaddr | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/examples/functions/inetaddr b/examples/functions/inetaddr new file mode 100644 index 0000000..9e72613 --- /dev/null +++ b/examples/functions/inetaddr @@ -0,0 +1,79 @@ +# +# 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 +} |