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/*
* Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/spawn.h>
#include <stddef.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#define log_trace(fmt, ...) printf("[init]: " fmt, ##__VA_ARGS__)
#define log_error(fmt, ...) printf("[error]: " fmt, ##__VA_ARGS__)
#define SHELL_PATH "/usr/bin/osh"
#define LOGIN_PATH "/usr/bin/login"
#define INIT_RC_PATH "/usr/rc/init.rc"
static void
init_hostname(void)
{
char hostname[128];
int error;
size_t len;
FILE *fp;
fp = fopen("/etc/hostname", "r");
if (fp == NULL) {
log_error("[init]: error opening /etc/hostname\n");
return;
}
error = fread(hostname, sizeof(char), sizeof(hostname), fp);
if (error <= 0) {
log_error("[init]: error reading /etc/hostname\n");
fclose(fp);
return;
}
len = strlen(hostname);
hostname[len - 2] = '\0';
if (sethostname(hostname, len) < 0) {
log_error("[init]: error setting hostname\n");
log_error("[init]: tried to set %s (len=%d)\n", hostname, len);
fclose(fp);
return;
}
log_trace("hostname -> %s\n", hostname);
fclose(fp);
}
int
main(int argc, char **argv)
{
char *login_argv[] = { LOGIN_PATH, NULL };
char *start_argv[] = { SHELL_PATH, INIT_RC_PATH, NULL };
char *envp[] = { NULL };
/* Initialize the system hostname */
init_hostname();
/* Start the init.rc */
log_trace("init.rc up\n");
spawn(SHELL_PATH, start_argv, envp, 0);
start_argv[1] = NULL;
/* Start the login manager */
spawn(login_argv[0], login_argv, envp, 0);
for (;;);
return 0;
}
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