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Uninitialized filter variables of path/[el]?clist types are now explicitly empty

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Maria Matejka 2023-06-17 10:16:28 +02:00 committed by Ondrej Zajicek
parent 6f798683a3
commit 39f8f46d81
1 changed files with 15 additions and 27 deletions
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42
filter/config.Y
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@ -225,34 +225,22 @@ f_new_lc_item(u32 f1, u32 t1, u32 f2, u32 t2, u32 f3, u32 t3)
}
static inline struct f_inst *
f_const_empty(struct f_dynamic_attr dyn)
f_const_empty(enum f_type t)
{
struct f_val empty;
switch (dyn.type) {
case EAF_TYPE_AS_PATH:
case EAF_TYPE_INT_SET:
case EAF_TYPE_EC_SET:
case EAF_TYPE_LC_SET:
empty = (struct f_val) {
.type = dyn.f_type,
switch (t) {
case T_PATH:
case T_CLIST:
case T_ECLIST:
case T_LCLIST:
return f_new_inst(FI_CONSTANT, (struct f_val) {
.type = t,
.val.ad = &null_adata,
};
break;
});
default:
cf_error("Can't empty that attribute");
return f_new_inst(FI_CONSTANT, (struct f_val) {});
}
return f_new_inst(FI_CONSTANT, empty);
}
#define f_dummy_dynattr(_type, _f_type) ((struct f_dynamic_attr) { .type = _type, .f_type = _f_type, })
#define f_const_empty_path f_const_empty(f_dummy_dynattr(EAF_TYPE_AS_PATH, T_PATH))
#define f_const_empty_clist f_const_empty(f_dummy_dynattr(EAF_TYPE_INT_SET, T_CLIST))
#define f_const_empty_eclist f_const_empty(f_dummy_dynattr(EAF_TYPE_EC_SET, T_ECLIST))
#define f_const_empty_lclist f_const_empty(f_dummy_dynattr(EAF_TYPE_LC_SET, T_LCLIST))
/*
* Remove all new lines and doubled whitespaces
* and convert all tabulators to spaces
@ -884,7 +872,7 @@ method_term:
;
method_cmd:
EMPTY { $$ = f_const_empty(FM.object->i_FI_EA_GET.da); }
EMPTY { $$ = f_const_empty(FM.object->i_FI_EA_GET.da.f_type); }
| PREPEND '(' term ')' { $$ = f_new_inst(FI_PATH_PREPEND, FM.object, $3 ); }
| ADD '(' term ')' { $$ = f_new_inst(FI_CLIST_ADD, FM.object, $3 ); }
| DELETE '(' term ')' { $$ = f_new_inst(FI_CLIST_DEL, FM.object, $3 ); }
@ -925,10 +913,10 @@ term:
$$ = $4;
}
| '+' EMPTY '+' { $$ = f_const_empty_path; }
| '-' EMPTY '-' { $$ = f_const_empty_clist; }
| '-' '-' EMPTY '-' '-' { $$ = f_const_empty_eclist; }
| '-' '-' '-' EMPTY '-' '-' '-' { $$ = f_const_empty_lclist; }
| '+' EMPTY '+' { $$ = f_const_empty(T_PATH); }
| '-' EMPTY '-' { $$ = f_const_empty(T_CLIST); }
| '-' '-' EMPTY '-' '-' { $$ = f_const_empty(T_ECLIST); }
| '-' '-' '-' EMPTY '-' '-' '-' { $$ = f_const_empty(T_LCLIST); }
| PREPEND '(' term ',' term ')' { $$ = f_new_inst(FI_PATH_PREPEND, $3, $5); }
| ADD '(' term ',' term ')' { $$ = f_new_inst(FI_CLIST_ADD, $3, $5); }
| DELETE '(' term ',' term ')' { $$ = f_new_inst(FI_CLIST_DEL, $3, $5); }