2de2abad62
This commit updates networkd behavior to check if the hostname option received via DHCP is too long for Linux limit, and in case shorten it. An overlong hostname will be truncated to the first dot or to `HOST_MAX_LEN`, whatever comes earlier.
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2010-2015 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdbool.h>
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#include "macro.h"
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bool hostname_is_set(void);
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char* gethostname_malloc(void);
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int gethostname_strict(char **ret);
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bool hostname_is_valid(const char *s, bool allow_trailing_dot) _pure_;
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char* hostname_cleanup(char *s);
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#define machine_name_is_valid(s) hostname_is_valid(s, false)
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bool is_localhost(const char *hostname);
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bool is_gateway_hostname(const char *hostname);
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int sethostname_idempotent(const char *s);
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int shorten_overlong(const char *s, char **ret);
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int read_etc_hostname_stream(FILE *f, char **ret);
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int read_etc_hostname(const char *path, char **ret);
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