417                 char label[DNS_LABEL_MAX];  in dns_name_concat()  local
419                 r = dns_label_unescape(&p, label, sizeof label, flags);  in dns_name_concat()
439                         r = dns_label_escape(label, r, ret + n + !first, DNS_LABEL_ESCAPED_MAX);  in dns_name_concat()
448                         r = dns_label_escape(label, r, escaped, sizeof(escaped));  in dns_name_concat()
490                 char label[DNS_LABEL_MAX+1];  in dns_name_hash_func()  local
492                 r = dns_label_unescape(&p, label, sizeof label, 0);  in dns_name_hash_func()
498                 ascii_strlower_n(label, r);  in dns_name_hash_func()
499                 siphash24_compress(label, r, state);  in dns_name_hash_func()
755                         char label[DNS_LABEL_MAX+1];  in dns_name_address()  local
757                         r = dns_label_unescape(&p, label, sizeof label, 0);  in dns_name_address()
765                         r = safe_atou8(label, &a[i]);  in dns_name_address()
791                         char label[DNS_LABEL_MAX+1];  in dns_name_address()  local
794                         r = dns_label_unescape(&p, label, sizeof label, 0);  in dns_name_address()
799                         x = unhexchar(label[0]);  in dns_name_address()
803                         r = dns_label_unescape(&p, label, sizeof label, 0);  in dns_name_address()
808                         y = unhexchar(label[0]);  in dns_name_address()
901 static bool srv_type_label_is_valid(const char *label, size_t n) {  in srv_type_label_is_valid()  argument
904         assert(label);  in srv_type_label_is_valid()
909         if (label[0] != '_') /* First label char needs to be underscore */  in srv_type_label_is_valid()
913         if (!(label[1] >= 'A' && label[1] <= 'Z') &&  in srv_type_label_is_valid()
914             !(label[1] >= 'a' && label[1] <= 'z'))  in srv_type_label_is_valid()
919                 if (!(label[k] >= 'A' && label[k] <= 'Z') &&  in srv_type_label_is_valid()
920                     !(label[k] >= 'a' && label[k] <= 'z') &&  in srv_type_label_is_valid()
921                     !(label[k] >= '0' && label[k] <= '9') &&  in srv_type_label_is_valid()
922                     label[k] != '-')  in srv_type_label_is_valid()
937                 char label[DNS_LABEL_MAX];  in dns_srv_type_is_valid()  local
941                 r = dns_label_unescape(&name, label, sizeof label, 0);  in dns_srv_type_is_valid()
950                 if (!srv_type_label_is_valid(label, r))  in dns_srv_type_is_valid()
1017 static bool dns_service_name_label_is_valid(const char *label, size_t n) {  in dns_service_name_label_is_valid()  argument
1020         assert(label);  in dns_service_name_label_is_valid()
1022         if (memchr(label, 0, n))  in dns_service_name_label_is_valid()
1025         s = strndupa_safe(label, n);  in dns_service_name_label_is_valid()
1340                 char label[DNS_LABEL_MAX];  in dns_name_apply_idna()  local
1342                 r = dns_label_unescape(&name, label, sizeof label, 0);  in dns_name_apply_idna()
1348                 q = dns_label_apply_idna(label, r, label, sizeof label);  in dns_name_apply_idna()
1357                 r = dns_label_escape(label, r, buf + n + !first, DNS_LABEL_ESCAPED_MAX);  in dns_name_apply_idna()