From f6f7f2f65712e6fa114f5751a72ad26cd893e92f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luc=C3=ADa=20Andrea=20Illanes=20Albornoz?=
 <lucia@luciaillanes.de>
Date: Sun, 19 Feb 2023 07:19:26 +0100
Subject: Reject empty variables from the command line.

---
 subr.rtl/rtl_platform.subr | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'subr.rtl/rtl_platform.subr')

diff --git a/subr.rtl/rtl_platform.subr b/subr.rtl/rtl_platform.subr
index 365d09eb..c5027d5f 100644
--- a/subr.rtl/rtl_platform.subr
+++ b/subr.rtl/rtl_platform.subr
@@ -144,6 +144,22 @@ rtl_run_cmd_unsplit() {
 	return ${_rrcu_rc};
 };
 
+rtl_set_var_from_cmdline() {
+	local	_rsvfc_rstatus="${1#\$}" _rsvfc_arg="${2}"	\
+		_rsvfc_rc=0 _rsvfc_vname="" _rsvfc_vval="";
+
+	_rsvfc_vname="${_rsvfc_arg%%=*}";
+	_rsvfc_vval="${_rsvfc_arg#*=}";
+
+	if [ "${_rsvfc_vval:+1}" != 1 ]; then
+		_rsvfc_rc=1;
+		rtl_setrstatus "${_rsvfc_rstatus}" 'empty value specified for \${'"${_rsvfc_vname}"'}.';
+	else
+		rtl_set_var_unsafe "${_rsvfc_vname}" "${_rsvfc_vval}";
+	fi;
+	return "${_rsvfc_rc}";
+};
+
 rtl_set_vars() {
 	local	_rsv_vars_set_vname="${1}" _rsv_vname_dst="${2}" _rsv_vname_src_tmpls="${3}"	\
 		_rsv_vars_set_old="" _rsv_vars_set_tmp="" _rsv_vname_src="" _rsv_vnames_src="";
-- 
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