[sr-dev] git:master:62f573d4: kamctl: fix dangerous 'rm -rf' code in case if variables are not defined

[Daniel-Constantin Mierla]

Module: kamailio
Branch: master
Commit: 62f573d4ecbbebe5f0f2d3b39be7ad4c2b460e65
URL: https://github.com/kamailio/kamailio/commit/62f573d4ecbbebe5f0f2d3b39be7ad4c2b460e65

Author: Alexander Lutay <alutay at sipwise.com>
Committer: Daniel-Constantin Mierla <miconda at gmail.com>
Date: 2017-08-02T09:06:05+02:00

kamctl: fix dangerous 'rm -rf' code in case if variables are not defined

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Modified: utils/kamctl/kamctl

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Diff:  https://github.com/kamailio/kamailio/commit/62f573d4ecbbebe5f0f2d3b39be7ad4c2b460e65.diff
Patch: https://github.com/kamailio/kamailio/commit/62f573d4ecbbebe5f0f2d3b39be7ad4c2b460e65.patch

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diff --git a/utils/kamctl/kamctl b/utils/kamctl/kamctl
index 30d5878482..3aaecbd15a 100755
--- a/utils/kamctl/kamctl
+++ b/utils/kamctl/kamctl
@@ -2614,7 +2614,7 @@ tls_ca() {
 			merr "Failed to create root directory $CA_PATH"
 			exit 1
 		fi
-		rm -fr $CA_PATH/*
+		rm -fr "${CA_PATH:?}"/*
 		mkdir $CA_PATH/private
 		mkdir $CA_PATH/certs
 		touch $CA_PATH/index.txt
@@ -2685,7 +2685,7 @@ tls_ca() {
 			merr "Failed to create user directory $USER_DIR "
 			exit 1
 		fi
-		rm -fr $USER_DIR/*
+		rm -fr "${USER_DIR:?}"/*
 
 		mecho "Creating user certificate request"
 		openssl req  -config $USER_CFG -out $USER_DIR/$USER-cert_req.pem \