Mercurial > cpython-lru_cache-weakref
diff Modules/parsermodule.c @ 62787:c6f16b8cb858
Issue #9130: Fix validation of relative imports in parser module.
| author | Mark Dickinson <dickinsm@gmail.com> |
|---|---|
| date | Sun, 04 Jul 2010 18:11:51 +0000 |
| parents | 1eaf4bbe4b1c |
| children | fb360c079059 |
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--- a/Modules/parsermodule.c Sun Jul 04 17:47:30 2010 +0000 +++ b/Modules/parsermodule.c Sun Jul 04 18:11:51 2010 +0000 @@ -1767,8 +1767,8 @@ return i-1; } -/* 'from' ('.'* dotted_name | '.') 'import' ('*' | '(' import_as_names ')' | - * import_as_names +/* import_from: ('from' ('.'* dotted_name | '.'+) + * 'import' ('*' | '(' import_as_names ')' | import_as_names)) */ static int validate_import_from(node *tree) @@ -1778,7 +1778,8 @@ int havename = (TYPE(CHILD(tree, ndots + 1)) == dotted_name); int offset = ndots + havename; int res = validate_ntype(tree, import_from) - && (nch >= 4 + ndots) + && (offset >= 1) + && (nch >= 3 + offset) && validate_name(CHILD(tree, 0), "from") && (!havename || validate_dotted_name(CHILD(tree, ndots + 1))) && validate_name(CHILD(tree, offset + 1), "import");