[PATCH] list: fix a bug

[Jonatan Schlag <jonatan.schlag@ipfire.org>]

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When the list is called "list" we have a problem because
${list}="list"
and ${!list}="list"
This creates effects nobody wants and which are also not so easy to understand.
To avoid such problems in the future we now throw an assertation when the list is called list.

Signed-off-by: Jonatan Schlag <jonatan.schlag(a)ipfire.org>
---
 src/functions/functions.list | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/functions/functions.list b/src/functions/functions.list
index 26ba6c3..ff73b04 100644
--- a/src/functions/functions.list
+++ b/src/functions/functions.list
@@ -25,6 +25,7 @@
 list_append() {
 	local list=${1}
 	assert isset list
+	assert [ ${list} != "list" ]
 	shift
 
 	local arg
@@ -40,6 +41,7 @@ list_append_one() {
 	shift
 
 	assert isset list
+	assert [ ${list} != "list" ]
 
 	if [ -n "${!list}" ]; then
 		printf -v ${list} -- "${!list} $@"
@@ -53,6 +55,7 @@ list_remove() {
 	shift
 
 	assert isset list
+	assert [ ${list} != "list" ]
 
 	local _list k
 	for k in ${!list}; do
@@ -127,6 +130,10 @@ list_join() {
 	local list=${1}
 	local delim=${2}
 
+	assert isset list
+	assert isset delim
+	assert [ ${list} != "list" ]
+
 	local ret
 	printf -v ret "${delim}%s" ${!list}
 
-- 
2.6.3