Line data    Source code

       1             : /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
       2             : 
       3             : /***
       4             :   This file is part of systemd.
       5             : 
       6             :   Copyright 2014 Lennart Poettering
       7             : 
       8             :   systemd is free software; you can redistribute it and/or modify it
       9             :   under the terms of the GNU Lesser General Public License as published by
      10             :   the Free Software Foundation; either version 2.1 of the License, or
      11             :   (at your option) any later version.
      12             : 
      13             :   systemd is distributed in the hope that it will be useful, but
      14             :   WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
      16             :   Lesser General Public License for more details.
      17             : 
      18             :   You should have received a copy of the GNU Lesser General Public License
      19             :   along with systemd; If not, see <http://www.gnu.org/licenses/>.
      20             :  ***/
      21             : 
      22             : #pragma once
      23             : 
      24             : 
      25             : #include "hashmap.h"
      26             : #include "in-addr-util.h"
      27             : 
      28             : #define DNS_LABEL_MAX 63
      29             : #define DNS_NAME_MAX 255
      30             : 
      31             : int dns_label_unescape(const char **name, char *dest, size_t sz);
      32             : int dns_label_unescape_suffix(const char *name, const char **label_end, char *dest, size_t sz);
      33             : int dns_label_escape(const char *p, size_t l, char **ret);
      34             : 
      35             : int dns_label_apply_idna(const char *encoded, size_t encoded_size, char *decoded, size_t decoded_max);
      36             : int dns_label_undo_idna(const char *encoded, size_t encoded_size, char *decoded, size_t decoded_max);
      37             : 
      38             : int dns_name_normalize(const char *s, char **_ret);
      39           2 : static inline int dns_name_is_valid(const char *s) {
      40             :         int r;
      41           2 :         r = dns_name_normalize(s, NULL);
      42           2 :         if (r == -EINVAL)
      43           0 :                 return 0;
      44           2 :         if (r < 0)
      45           0 :                 return r;
      46           2 :         return 1;
      47             : }
      48             : 
      49             : unsigned long dns_name_hash_func(const void *s, const uint8_t hash_key[HASH_KEY_SIZE]);
      50             : int dns_name_compare_func(const void *a, const void *b);
      51             : extern const struct hash_ops dns_name_hash_ops;
      52             : 
      53             : int dns_name_between(const char *a, const char *b, const char *c);
      54             : int dns_name_equal(const char *x, const char *y);
      55             : int dns_name_endswith(const char *name, const char *suffix);
      56             : 
      57             : int dns_name_reverse(int family, const union in_addr_union *a, char **ret);
      58             : int dns_name_address(const char *p, int *family, union in_addr_union *a);
      59             : 
      60             : int dns_name_root(const char *name);
      61             : int dns_name_single_label(const char *name);