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/* SPDX-License-Identifier: LGPL-2.0-or-later */
/*
* Copyright (C) 1995-2004 Miquel van Smoorenburg
* Version: @(#)initreq.h 1.28 31-Mar-2004 MvS
*/
#pragma once
#include <sys/param.h>
#if defined(__FreeBSD_kernel__)
# define INIT_FIFO "/etc/.initctl"
#else
# define INIT_FIFO "/dev/initctl"
#endif
#define INIT_MAGIC 0x03091969
#define INIT_CMD_START 0
#define INIT_CMD_RUNLVL 1
#define INIT_CMD_POWERFAIL 2
#define INIT_CMD_POWERFAILNOW 3
#define INIT_CMD_POWEROK 4
#define INIT_CMD_BSD 5
#define INIT_CMD_SETENV 6
#define INIT_CMD_UNSETENV 7
#define INIT_CMD_CHANGECONS 12345
#ifdef MAXHOSTNAMELEN
# define INITRQ_HLEN MAXHOSTNAMELEN
#else
# define INITRQ_HLEN 64
#endif
/*
* This is what BSD 4.4 uses when talking to init.
* Linux doesn't use this right now.
*/
struct init_request_bsd {
char gen_id[8]; /* Beats me.. telnetd uses "fe" */
char tty_id[16]; /* Tty name minus /dev/tty */
char host[INITRQ_HLEN]; /* Hostname */
char term_type[16]; /* Terminal type */
int signal; /* Signal to send */
int pid; /* Process to send to */
char exec_name[128]; /* Program to execute */
char reserved[128]; /* For future expansion. */
};
/*
* Because of legacy interfaces, "runlevel" and "sleeptime"
* aren't in a separate struct in the union.
*
* The weird sizes are because init expects the whole
* struct to be 384 bytes.
*/
struct init_request {
int magic; /* Magic number */
int cmd; /* What kind of request */
int runlevel; /* Runlevel to change to */
int sleeptime; /* Time between TERM and KILL */
union {
struct init_request_bsd bsd;
char data[368];
} i;
};
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