nsec3-chain: simplify NSEC3 owner conversion

diff --git a/src/knot/dnssec/nsec3-chain.c b/src/knot/dnssec/nsec3-chain.c
index 3d2b38dd488b60c4d79b4bc0df39f5f0b9acbc68..4dee82723f429a3260233d3e0d683079460d9609 100644 (file)
--- a/src/knot/dnssec/nsec3-chain.c
+++ b/src/knot/dnssec/nsec3-chain.c
@@ -281,30 +281,16 @@ static int connect_nsec3_base(knot_rdataset_t *a_rrs, const knot_dname_t *b_name
        }
 
        uint8_t raw_length = knot_nsec3_next_len(a_rrs->rdata);
+       assert(raw_length == dnssec_nsec3_hash_length(algorithm));
        uint8_t *raw_hash = (uint8_t *)knot_nsec3_next(a_rrs->rdata);
        if (raw_hash == NULL) {
                return KNOT_EINVAL;
        }
 
-       assert(raw_length == dnssec_nsec3_hash_length(algorithm));
-
-       char *b32_hash = knot_dname_to_str_alloc(b_name);
-       if (!b32_hash) {
-               return KNOT_ENOMEM;
-       }
-
-       char *b32_end = strchr(b32_hash, '.');
-       if (!b32_end) {
-               free(b32_hash);
-               return KNOT_EINVAL;
-       }
-
-       size_t b32_length = b32_end - b32_hash;
-       int32_t written = base32hex_decode((uint8_t *)b32_hash, b32_length,
-                                          raw_hash, raw_length);
-
-       free(b32_hash);
-
+       assert(b_name);
+       uint8_t b32_length = b_name[0];
+       const uint8_t *b32_hash = &(b_name[1]);
+       int32_t written = base32hex_decode(b32_hash, b32_length, raw_hash, raw_length);
        if (written != raw_length) {
                return KNOT_EINVAL;
        }