023a4f6701
When generating utmp/wtmp entries, optionally add both LOGIN_PROCESS and INIT_PROCESS entries or even all three of LOGIN_PROCESS, INIT_PROCESS and USER_PROCESS entries, instead of just a single INIT_PROCESS entry. With this change systemd may be used to not only invoke a getty directly in a SysV-compliant way but alternatively also a login(1) implementation or even forego getty and login entirely, and invoke arbitrary shells in a way that they appear in who(1) or w(1). This is preparation for a later commit that adds a "machinectl shell" operation to invoke a shell in a container, in a way that is compatible with who(1) and w(1).
73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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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 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 "util.h"
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#ifdef HAVE_UTMP
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int utmp_get_runlevel(int *runlevel, int *previous);
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int utmp_put_shutdown(void);
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int utmp_put_reboot(usec_t timestamp);
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int utmp_put_runlevel(int runlevel, int previous);
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int utmp_put_dead_process(const char *id, pid_t pid, int code, int status);
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int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line, int ut_type, const char *user);
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int utmp_wall(
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const char *message,
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const char *username,
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const char *origin_tty,
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bool (*match_tty)(const char *tty, void *userdata),
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void *userdata);
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#else /* HAVE_UTMP */
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static inline int utmp_get_runlevel(int *runlevel, int *previous) {
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return -ESRCH;
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}
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static inline int utmp_put_shutdown(void) {
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return 0;
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}
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static inline int utmp_put_reboot(usec_t timestamp) {
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return 0;
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}
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static inline int utmp_put_runlevel(int runlevel, int previous) {
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return 0;
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}
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static inline int utmp_put_dead_process(const char *id, pid_t pid, int code, int status) {
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return 0;
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}
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static inline int utmp_put_init_process(const char *id, pid_t pid, pid_t sid, const char *line, int ut_type, const char *user) {
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return 0;
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}
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static inline int utmp_wall(
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const char *message,
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const char *username,
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const char *origin_tty,
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bool (*match_tty)(const char *tty, void *userdata),
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void *userdata) {
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return 0;
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}
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#endif /* HAVE_UTMP */
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