| /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| #pragma once |
| |
| #include <stdbool.h> |
| #include <stdio.h> |
| |
| #include "macro.h" |
| #include "strv.h" |
| |
| typedef enum GetHostnameFlags { |
| GET_HOSTNAME_ALLOW_LOCALHOST = 1 << 0, /* accepts "localhost" or friends. */ |
| GET_HOSTNAME_FALLBACK_DEFAULT = 1 << 1, /* use default hostname if no hostname is set. */ |
| GET_HOSTNAME_SHORT = 1 << 2, /* 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 bool is_dns_stub_hostname(const char *hostname) { |
| return STRCASE_IN_SET(hostname, "_localdnsstub", "_localdnsstub."); |
| } |
| |
| static inline bool is_dns_proxy_stub_hostname(const char *hostname) { |
| return STRCASE_IN_SET(hostname, "_localdnsproxy", "_localdnsproxy."); |
| } |
| |
| int get_pretty_hostname(char **ret); |