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

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   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 char *id128_to_uuid_string(sd_id128_t id, char s[37]);
  12
  13 /* Like SD_ID128_FORMAT_STR, but formats as UUID, not in plain format */
  14 #define ID128_UUID_FORMAT_STR "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x"
  15
  16 bool id128_is_valid(const char *s) _pure_;
  17
  18 typedef enum Id128Format {
  19         ID128_ANY,
  20         ID128_PLAIN,  /* formatted as 32 hex chars as-is */
  21         ID128_UUID,   /* formatted as 36 character uuid string */
  22         _ID128_FORMAT_MAX,
  23 } Id128Format;
  24
  25 int id128_read_fd(int fd, Id128Format f, sd_id128_t *ret);
  26 int id128_read(const char *p, Id128Format f, sd_id128_t *ret);
  27
  28 int id128_write_fd(int fd, Id128Format f, sd_id128_t id, bool do_sync);
  29 int id128_write(const char *p, Id128Format f, sd_id128_t id, bool do_sync);
  30
  31 void id128_hash_func(const sd_id128_t *p, struct siphash *state);
  32 int id128_compare_func(const sd_id128_t *a, const sd_id128_t *b) _pure_;
  33 extern const struct hash_ops id128_hash_ops;