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resolve: drop recursion in TXT field handling

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Fixes #25683.

(cherry picked from commit 494ef16743)
This commit is contained in:
Yu Watanabe 2022-12-10 10:21:41 +09:00 committed by Zbigniew Jędrzejewski-Szmek
parent aeb3653744
commit 8ff529fb80
1 changed files with 13 additions and 19 deletions
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32
src/resolve/resolved-dns-rr.c
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@ -1768,36 +1768,30 @@ int dns_resource_record_get_cname_target(DnsResourceKey *key, DnsResourceRecord
return 0; return 0;
} }
DnsTxtItem *dns_txt_item_free_all(DnsTxtItem *i) { DnsTxtItem *dns_txt_item_free_all(DnsTxtItem *first) {
DnsTxtItem *n; LIST_FOREACH(items, i, first)
free(i);
if (!i) return NULL;
return NULL;
n = i->items_next;
free(i);
return dns_txt_item_free_all(n);
} }
bool dns_txt_item_equal(DnsTxtItem *a, DnsTxtItem *b) { bool dns_txt_item_equal(DnsTxtItem *a, DnsTxtItem *b) {
DnsTxtItem *bb = b;
if (a == b) if (a == b)
return true; return true;
if (!a != !b) LIST_FOREACH(items, aa, a) {
return false; if (!bb)
return false;
if (!a) if (memcmp_nn(aa->data, aa->length, bb->data, bb->length) != 0)
return true; return false;
if (a->length != b->length) bb = bb->items_next;
return false; }
if (memcmp(a->data, b->data, a->length) != 0) return !bb;
return false;
return dns_txt_item_equal(a->items_next, b->items_next);
} }
DnsTxtItem *dns_txt_item_copy(DnsTxtItem *first) { DnsTxtItem *dns_txt_item_copy(DnsTxtItem *first) {