From: Alexander Barton <alex@barton.de>
Date: Mon, 7 Dec 2015 09:08:47 +0000 (+0100)
Subject: Test for required external commands
X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=trigger-rcmd.git;a=commitdiff_plain;h=cf9579bd60b626db8da8fc20e1cced0199c47202

Test for required external commands
---

diff --git a/scripts/trigger-rcmd b/scripts/trigger-rcmd
index 34f6f4d..17fd8a3 100755
--- a/scripts/trigger-rcmd
+++ b/scripts/trigger-rcmd
@@ -117,6 +117,15 @@ do_rcmd() {
 # Defaults
 NO_WAKE=
 
+# Check required tools
+for t in fping ssh etherwake; do
+	type "$t" >/dev/null 2>&1
+	if [ $? -ne 0 ]; then
+		echo "$NAME: Required tool \"$t\" missing, aborting!"
+		exit 3
+	fi
+done
+
 while [ $# -gt 0 ]; do
 	case "$1" in
 	  --no-wake|-n)