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https://github.com/morgan9e/systemd
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5bb9063505
glibc defines HOST_NAME_MAX as 64 and our code rely on that, but musl defines the constant as 255. Let's provide our own definition for the maximum length.
50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include "basic-forward.h"
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#include "strv.h"
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/* HOST_NAME_MAX should be 64 on linux, but musl uses the one by POSIX (255). */
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#define LINUX_HOST_NAME_MAX CONST_MIN((size_t) HOST_NAME_MAX, (size_t) 64)
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char* get_default_hostname_raw(void);
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bool valid_ldh_char(char c) _const_;
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typedef enum ValidHostnameFlags {
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VALID_HOSTNAME_TRAILING_DOT = 1 << 0, /* Accept trailing dot on multi-label names */
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VALID_HOSTNAME_DOT_HOST = 1 << 1, /* Accept ".host" as valid hostname */
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VALID_HOSTNAME_QUESTION_MARK = 1 << 2, /* Accept "?" as place holder for hashed machine ID value */
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} ValidHostnameFlags;
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bool hostname_is_valid(const char *s, ValidHostnameFlags flags) _pure_;
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char* hostname_cleanup(char *s);
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bool is_localhost(const char *hostname);
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static inline bool is_gateway_hostname(const char *hostname) {
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/* This tries to identify the valid syntaxes for the our synthetic "gateway" host. */
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return STRCASE_IN_SET(hostname, "_gateway", "_gateway.");
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}
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static inline bool is_outbound_hostname(const char *hostname) {
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/* This tries to identify the valid syntaxes for the our synthetic "outbound" host. */
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return STRCASE_IN_SET(hostname, "_outbound", "_outbound.");
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}
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static inline bool is_dns_stub_hostname(const char *hostname) {
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return STRCASE_IN_SET(hostname, "_localdnsstub", "_localdnsstub.");
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}
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static inline bool is_dns_proxy_stub_hostname(const char *hostname) {
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return STRCASE_IN_SET(hostname, "_localdnsproxy", "_localdnsproxy.");
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}
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const char* etc_hostname(void);
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const char* etc_machine_info(void);
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int get_pretty_hostname(char **ret);
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int machine_spec_valid(const char *s);
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int split_user_at_host(const char *s, char **ret_user, char **ret_host);
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