1 files changed, 104 insertions, 0 deletions

diff --git a/urunlevel/my_linux/mkrootfs.c b/urunlevel/my_linux/mkrootfs.c
new file mode 100644
index 0000000..9098be6
--- /dev/null
+++ b/urunlevel/my_linux/mkrootfs.c
@@ -0,0 +1,104 @@
+/*
+ * 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");
+}