src/basic/hostname-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   This file is part of systemd.
   6
   7   Copyright 2010-2015 Lennart Poettering
   8 ***/
   9
  10 #include <stdbool.h>
  11 #include <stdio.h>
  12
  13 #include "macro.h"
  14
  15 bool hostname_is_set(void);
  16
  17 char* gethostname_malloc(void);
  18 int gethostname_strict(char **ret);
  19
  20 bool hostname_is_valid(const char *s, bool allow_trailing_dot) _pure_;
  21 char* hostname_cleanup(char *s);
  22
  23 #define machine_name_is_valid(s) hostname_is_valid(s, false)
  24
  25 bool is_localhost(const char *hostname);
  26 bool is_gateway_hostname(const char *hostname);
  27
  28 int sethostname_idempotent(const char *s);
  29
  30 int shorten_overlong(const char *s, char **ret);
  31
  32 int read_etc_hostname_stream(FILE *f, char **ret);
  33 int read_etc_hostname(const char *path, char **ret);