68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
|
|
#pragma once
|
|
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
|
|
#include "env-file.h"
|
|
#include "macro.h"
|
|
#include "strv.h"
|
|
|
|
typedef enum GetHostnameFlags {
|
|
GET_HOSTNAME_ALLOW_NONE = 1 << 0, /* accepts "(none)". */
|
|
GET_HOSTNAME_ALLOW_LOCALHOST = 1 << 1, /* accepts "localhost" or friends. */
|
|
GET_HOSTNAME_FALLBACK_DEFAULT = 1 << 2, /* use default hostname if no hostname is set. */
|
|
GET_HOSTNAME_SHORT = 1 << 3, /* kills the FQDN part if present. */
|
|
} GetHostnameFlags;
|
|
|
|
int gethostname_full(GetHostnameFlags flags, char **ret);
|
|
static inline int gethostname_strict(char **ret) {
|
|
return gethostname_full(0, ret);
|
|
}
|
|
|
|
static inline char* gethostname_malloc(void) {
|
|
char *s;
|
|
|
|
if (gethostname_full(GET_HOSTNAME_ALLOW_LOCALHOST | GET_HOSTNAME_FALLBACK_DEFAULT, &s) < 0)
|
|
return NULL;
|
|
|
|
return s;
|
|
}
|
|
|
|
static inline char* gethostname_short_malloc(void) {
|
|
char *s;
|
|
|
|
if (gethostname_full(GET_HOSTNAME_ALLOW_LOCALHOST | GET_HOSTNAME_FALLBACK_DEFAULT | GET_HOSTNAME_SHORT, &s) < 0)
|
|
return NULL;
|
|
|
|
return s;
|
|
}
|
|
|
|
char* get_default_hostname(void);
|
|
|
|
bool valid_ldh_char(char c) _const_;
|
|
|
|
typedef enum ValidHostnameFlags {
|
|
VALID_HOSTNAME_TRAILING_DOT = 1 << 0, /* Accept trailing dot on multi-label names */
|
|
VALID_HOSTNAME_DOT_HOST = 1 << 1, /* Accept ".host" as valid hostname */
|
|
} ValidHostnameFlags;
|
|
|
|
bool hostname_is_valid(const char *s, ValidHostnameFlags flags) _pure_;
|
|
char* hostname_cleanup(char *s);
|
|
|
|
bool is_localhost(const char *hostname);
|
|
|
|
static inline bool is_gateway_hostname(const char *hostname) {
|
|
/* This tries to identify the valid syntaxes for the our synthetic "gateway" host. */
|
|
return STRCASE_IN_SET(hostname, "_gateway", "_gateway.");
|
|
}
|
|
|
|
static inline bool is_outbound_hostname(const char *hostname) {
|
|
/* This tries to identify the valid syntaxes for the our synthetic "outbound" host. */
|
|
return STRCASE_IN_SET(hostname, "_outbound", "_outbound.");
|
|
}
|
|
|
|
static inline int get_pretty_hostname(char **ret) {
|
|
return parse_env_file(NULL, "/etc/machine-info", "PRETTY_HOSTNAME", ret);
|
|
}
|