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/*
 * Copyright (C) 2004 by David Seikel won_fang@yahoo.com.au
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 * 02111-1307 USA
 *
 */

#include <dirent.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <signal.h>
#include <string.h>
#include <sys/poll.h>
#include <sys/wait.h>
#include <sys/utsname.h>		/* for uname(2) */

#include "busybox.h"
#include "lib_init_d.h"


void mkrootfs(const char *directories[], const nodes_t *nodes, const char *files[][2], const char *scripts[][2], const char *links[][2])
{
    int i;
    char temp[64];

    umask(022);
    sprintf(temp, "/dev");
    bb_make_directory(temp, -1l, FILEUTILS_RECUR);
    mknod("/dev/console", S_IFCHR, makedev(4, 0));
    chmod("/dev/console", S_IRUSR | S_IWUSR);
    mknod("/dev/null",    S_IFCHR, makedev(1, 3));
    chmod("/dev/null",    S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
    mknod("/dev/ptmx",    S_IFCHR, makedev(5, 2));
    chmod("/dev/ptmx",    S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
    sprintf(temp, "/bin");
    bb_make_directory(temp, -1l, FILEUTILS_RECUR);
    symlink("/bin/busybox", "/bin/sh");

    bb_printf("\n\nCreating directories, devices, files, and links.\n");
    for (i = 0; directories[i] != 0; i++)
    {
	/* Can't use it directly, coz bb_make_directory segfaults. */
	sprintf(temp, "/%s", directories[i]);
	bb_make_directory(temp, -1l, FILEUTILS_RECUR);
    }

    symlink("/var/etc", "/etc");
    symlink("/proc/mounts", "/var/etc/mtab");
    quick_mount("proc",    "proc",       "/proc",    "");
    quick_mount("sysfs",   "sysfs",      "/sys",     "");
    for (i = 0; nodes[i].name != 0; i++)
    {
	if (nodes[i].count)
	{
	    int j;
	    for (j = 0; j <= nodes[i].count; j++)
	    {
		sprintf(temp, "/dev/%s%i", nodes[i].name, j);
		mknod(temp, nodes[i].mode, makedev(nodes[i].major, nodes[i].minor + j));
	    }
	}
	else
	{
	    sprintf(temp, "/dev/%s", nodes[i].name);
	    mknod(temp, nodes[i].mode, makedev(nodes[i].major, nodes[i].minor));
	}
    } 

    for (i = 0; files[i][0] != NULL; i++)
	quick_write(files[i][0], files[i][1]);

    for (i = 0; scripts[i][0] != NULL; i++)
    {
	quick_write(scripts[i][0], scripts[i][1]);
	chmod(scripts[i][0], S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
    }

    for (i = 0; links[i][0] != NULL; i++)
	symlink(links[i][0], links[i][1]);

    quick_mount("devpts",  "devpts",     "/dev/pts", "");
    doit(0, "busybox --install");

    /* This must be last, as it currently defines a valid install. */
    /* Can't use it directly, coz bb_make_directory segfaults. */
    sprintf(temp, "/var/lib/distro");
    bb_make_directory(temp, -1l, FILEUTILS_RECUR);

    bb_printf("Created.\n");
}