1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
2 #pragma once
3 
4 #include <stdbool.h>
5 
6 #include "sd-id128.h"
7 
8 #include "hash-funcs.h"
9 #include "macro.h"
10 
11 bool id128_is_valid(const char *s) _pure_;
12 
13 typedef enum Id128Format {
14         ID128_ANY,
15         ID128_PLAIN,  /* formatted as 32 hex chars as-is */
16         ID128_PLAIN_OR_UNINIT,  /* formatted as 32 hex chars as-is; allow special "uninitialized"
17                                  * value when reading from file (id128_read() and id128_read_fd()).
18                                  *
19                                  * This format should be used when reading a machine-id file. */
20         ID128_UUID,   /* formatted as 36 character uuid string */
21         _ID128_FORMAT_MAX,
22 } Id128Format;
23 
24 int id128_read_fd(int fd, Id128Format f, sd_id128_t *ret);
25 int id128_read(const char *p, Id128Format f, sd_id128_t *ret);
26 
27 int id128_write_fd(int fd, Id128Format f, sd_id128_t id, bool do_sync);
28 int id128_write(const char *p, Id128Format f, sd_id128_t id, bool do_sync);
29 
30 void id128_hash_func(const sd_id128_t *p, struct siphash *state);
31 int id128_compare_func(const sd_id128_t *a, const sd_id128_t *b) _pure_;
32 extern const struct hash_ops id128_hash_ops;
33 
34 sd_id128_t id128_make_v4_uuid(sd_id128_t id);
35 
36 int id128_get_product(sd_id128_t *ret);
37 
38 int id128_equal_string(const char *s, sd_id128_t id);
39