src/basic/hostname-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include <stdbool.h>
   5 #include <stdio.h>
   6
   7 #include "macro.h"
   8
   9 bool hostname_is_set(void);
  10
  11 char* gethostname_malloc(void);
  12 int gethostname_strict(char **ret);
  13
  14 bool valid_ldh_char(char c) _const_;
  15 bool hostname_is_valid(const char *s, bool allow_trailing_dot) _pure_;
  16 char* hostname_cleanup(char *s);
  17
  18 #define machine_name_is_valid(s) hostname_is_valid(s, false)
  19
  20 bool is_localhost(const char *hostname);
  21 bool is_gateway_hostname(const char *hostname);
  22
  23 int sethostname_idempotent(const char *s);
  24
  25 int shorten_overlong(const char *s, char **ret);
  26
  27 int read_etc_hostname_stream(FILE *f, char **ret);
  28 int read_etc_hostname(const char *path, char **ret);