moveconfig: replace unsafe eval with asteval
Commit b237d358b425 ("moveconfig: expand simple expressions") added
support for expanding expressions in configs, but used the unsafe python
built-in "eval". This patch fixes this by replacing eval with the
asteval module.
Signed-off-by: Markus Klotzbuecher <mk@mkio.de>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/tools/moveconfig.py b/tools/moveconfig.py
index 36160a3..df20ec6 100755
--- a/tools/moveconfig.py
+++ b/tools/moveconfig.py
@@ -295,6 +295,7 @@
"""
+import asteval
import collections
import copy
import difflib
@@ -808,10 +809,11 @@
return line
try:
+ aeval = asteval.Interpreter( usersyms=SIZES, minimal=True )
cfg, val = re.split("=", line)
val= val.strip('\"')
if re.search("[*+-/]|<<|SZ_+|\(([^\)]+)\)", val):
- newval = hex(eval(val, SIZES))
+ newval = hex(aeval(val))
print("\tExpanded expression %s to %s" % (val, newval))
return cfg+'='+newval
except: