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-rw-r--r--applications/luci-app-statistics/luasrc/statistics/rrdtool.lua10
1 files changed, 3 insertions, 7 deletions
diff --git a/applications/luci-app-statistics/luasrc/statistics/rrdtool.lua b/applications/luci-app-statistics/luasrc/statistics/rrdtool.lua
index e29a2e17d..47e1696ec 100644
--- a/applications/luci-app-statistics/luasrc/statistics/rrdtool.lua
+++ b/applications/luci-app-statistics/luasrc/statistics/rrdtool.lua
@@ -87,7 +87,7 @@ function Graph._rrdtool( self, def, rrd )
fs.mkdirr( dir )
-- construct commandline
- local cmdline = "rrdtool graph"
+ local cmdline = { "rrdtool", "graph" }
-- copy default arguments to def stack
for i, opt in ipairs(self.args) do
@@ -102,15 +102,11 @@ function Graph._rrdtool( self, def, rrd )
opt = opt:gsub( "{file}", rrd )
end
- if opt:match("[^%w]") then
- cmdline = cmdline .. " '" .. opt .. "'"
- else
- cmdline = cmdline .. " " .. opt
- end
+ cmdline[#cmdline+1] = luci.util.shellquote(opt)
end
-- execute rrdtool
- local rrdtool = io.popen( cmdline )
+ local rrdtool = io.popen(table.concat(cmdline, " "))
rrdtool:close()
end