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fstree.c

/*
 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
 *
 *
 * 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 "dtc.h"

#include <dirent.h>
#include <sys/stat.h>

static struct node *read_fstree(const char *dirname)
{
      DIR *d;
      struct dirent *de;
      struct stat st;
      struct node *tree;

      d = opendir(dirname);
      if (!d)
            die("Couldn't opendir() \"%s\": %s\n", dirname, strerror(errno));

      tree = build_node(NULL, NULL);

      while ((de = readdir(d)) != NULL) {
            char *tmpnam;

            if (streq(de->d_name, ".")
                || streq(de->d_name, ".."))
                  continue;

            tmpnam = join_path(dirname, de->d_name);

            if (lstat(tmpnam, &st) < 0)
                  die("stat(%s): %s\n", tmpnam, strerror(errno));

            if (S_ISREG(st.st_mode)) {
                  struct property *prop;
                  FILE *pfile;

                  pfile = fopen(tmpnam, "r");
                  if (! pfile) {
                        fprintf(stderr,
                              "WARNING: Cannot open %s: %s\n",
                              tmpnam, strerror(errno));
                  } else {
                        prop = build_property(strdup(de->d_name),
                                          data_copy_file(pfile,
                                                     st.st_size),
                                          NULL);
                        add_property(tree, prop);
                        fclose(pfile);
                  }
            } else if (S_ISDIR(st.st_mode)) {
                  struct node *newchild;

                  newchild = read_fstree(tmpnam);
                  newchild = name_node(newchild, strdup(de->d_name),
                                   NULL);
                  add_child(tree, newchild);
            }

            free(tmpnam);
      }

      return tree;
}

struct boot_info *dt_from_fs(const char *dirname)
{
      struct node *tree;

      tree = read_fstree(dirname);
      tree = name_node(tree, "", NULL);

      return build_boot_info(NULL, tree, 0);
}


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