Annotation of prex-old/usr/bin/init/init.c, Revision 1.1
1.1 ! nbrk 1: /*
! 2: * Copyright (c) 2005-2007, Kohsuke Ohtani
! 3: * All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 8: * 1. Redistributions of source code must retain the above copyright
! 9: * notice, this list of conditions and the following disclaimer.
! 10: * 2. Redistributions in binary form must reproduce the above copyright
! 11: * notice, this list of conditions and the following disclaimer in the
! 12: * documentation and/or other materials provided with the distribution.
! 13: * 3. Neither the name of the author nor the names of any co-contibutors
! 14: * may be used to endorse or promote products derived from this software
! 15: * without specific prior written permission.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: */
! 29:
! 30: #include <prex/prex.h>
! 31: #include <sys/wait.h>
! 32:
! 33: #include <unistd.h>
! 34: #include <errno.h>
! 35: #include <fcntl.h>
! 36: #include <stdio.h>
! 37: #include <stdlib.h>
! 38:
! 39: #define PROGNAME "/boot/cmdbox"
! 40:
! 41: /*
! 42: * The mother of all processes.
! 43: */
! 44: int
! 45: main(int argc, char *argv[])
! 46: {
! 47: pid_t pid;
! 48:
! 49: close(0);
! 50: close(1);
! 51: close(2);
! 52:
! 53: pid = vfork();
! 54:
! 55: if (pid == -1)
! 56: exit(1);
! 57:
! 58: if (pid == 0) {
! 59: /*
! 60: * child
! 61: */
! 62: signal(SIGHUP, SIG_DFL);
! 63: signal(SIGINT, SIG_DFL);
! 64: signal(SIGALRM, SIG_DFL);
! 65:
! 66: open("/dev/console", O_RDWR); /* stdin */
! 67: dup(0); /* stdout */
! 68: dup(0); /* stderr */
! 69:
! 70: exit(execve(PROGNAME, 0, 0));
! 71: }
! 72: /*
! 73: * parent
! 74: */
! 75: thread_setprio(thread_self(), 254);
! 76: while (wait((int *)0) != pid);
! 77: return 0;
! 78: }
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