src/libsystemd/sd-id128/id128-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   This file is part of systemd.
   6
   7   Copyright 2016 Lennart Poettering
   8 ***/
   9
  10 #include <stdbool.h>
  11
  12 #include "sd-id128.h"
  13
  14 #include "hash-funcs.h"
  15 #include "macro.h"
  16
  17 char *id128_to_uuid_string(sd_id128_t id, char s[37]);
  18
  19 /* Like SD_ID128_FORMAT_STR, but formats as UUID, not in plain format */
  20 #define ID128_UUID_FORMAT_STR "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x"
  21
  22 bool id128_is_valid(const char *s) _pure_;
  23
  24 typedef enum Id128Format {
  25         ID128_ANY,
  26         ID128_PLAIN,  /* formatted as 32 hex chars as-is */
  27         ID128_UUID,   /* formatted as 36 character uuid string */
  28         _ID128_FORMAT_MAX,
  29 } Id128Format;
  30
  31 int id128_read_fd(int fd, Id128Format f, sd_id128_t *ret);
  32 int id128_read(const char *p, Id128Format f, sd_id128_t *ret);
  33
  34 int id128_write_fd(int fd, Id128Format f, sd_id128_t id, bool do_sync);
  35 int id128_write(const char *p, Id128Format f, sd_id128_t id, bool do_sync);
  36
  37 void id128_hash_func(const void *p, struct siphash *state);
  38 int id128_compare_func(const void *a, const void *b) _pure_;
  39 extern const struct hash_ops id128_hash_ops;