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36 lines
1.1 KiB
36 lines
1.1 KiB
6 years ago
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From d5447330844a1f16d927d42cd1d96c5425133aad Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Wed, 12 Aug 2015 14:24:05 +0200
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Subject: [PATCH] network/net-lib.sh: add is_ip()
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add function to test if string is a valid IP
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(cherry picked from commit 01b23b6900eabefbfd1f589b9f12c8ff38c5afc0)
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---
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modules.d/40network/net-lib.sh | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/modules.d/40network/net-lib.sh b/modules.d/40network/net-lib.sh
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index cfc06feb..44c1bf04 100755
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--- a/modules.d/40network/net-lib.sh
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+++ b/modules.d/40network/net-lib.sh
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@@ -2,6 +2,18 @@
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# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
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# ex: ts=8 sw=4 sts=4 et filetype=sh
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+is_ip() {
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+ echo "$1" | {
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+ IFS=. read a b c d
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+ test "$a" -ge 0 -a "$a" -le 255 \
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+ -a "$b" -ge 0 -a "$b" -le 255 \
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+ -a "$c" -ge 0 -a "$c" -le 255 \
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+ -a "$d" -ge 0 -a "$d" -le 255 \
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+ 2> /dev/null
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+ } && return 0
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+ return 1
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+}
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+
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get_ip() {
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local iface="$1" ip=""
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ip=$(ip -o -f inet addr show $iface)
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