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be sure to properly escape type names

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* src/scan-code.l: Use obstack_quote when passing type_name to m4.
* tests/input.at (Code injection): New.
* NEWS: Document it.
Thanks to Paul Eggert for the wording.
This commit is contained in:
Akim Demaille
2012-07-26 12:14:50 +02:00
parent 0601c3bf0f
commit 8617d87e24
3 changed files with 63 additions and 5 deletions
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12
src/scan-code.l
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@@ -764,8 +764,9 @@ handle_action_dollar (symbol_list *rule, char *text, location dollar_loc)
untyped_var_seen = true;
}
obstack_fgrow1 (&obstack_for_string,
"]b4_lhs_value([%s])[", type_name);
obstack_sgrow (&obstack_for_string, "]b4_lhs_value(");
obstack_quote (&obstack_for_string, type_name);
obstack_sgrow (&obstack_for_string, ")[");
rule->action_props.is_value_used = true;
break;
@@ -784,9 +785,10 @@ handle_action_dollar (symbol_list *rule, char *text, location dollar_loc)
untyped_var_seen = true;
}
obstack_fgrow3 (&obstack_for_string,
"]b4_rhs_value(%d, %d, [%s])[",
effective_rule_length, n, type_name);
obstack_fgrow2 (&obstack_for_string,
"]b4_rhs_value(%d, %d, ", effective_rule_length, n);
obstack_quote (&obstack_for_string, type_name);
obstack_sgrow (&obstack_for_string, ")[");
if (n > 0)
symbol_list_n_get (effective_rule, n)->action_props.is_value_used =
true;