xref: /openbmc/u-boot/scripts/dtc/fstree.c (revision 971a54193c9a90a6651064c4a7879e3568e9e7b8)
1  /*
2   * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
3   *
4   *
5   * This program is free software; you can redistribute it and/or
6   * modify it under the terms of the GNU General Public License as
7   * published by the Free Software Foundation; either version 2 of the
8   * License, or (at your option) any later version.
9   *
10   *  This program is distributed in the hope that it will be useful,
11   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   *  General Public License for more details.
14   *
15   *  You should have received a copy of the GNU General Public License
16   *  along with this program; if not, write to the Free Software
17   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
18   *                                                                   USA
19   */
20  
21  #include "dtc.h"
22  
23  #include <dirent.h>
24  #include <sys/stat.h>
25  
26  static struct node *read_fstree(const char *dirname)
27  {
28  	DIR *d;
29  	struct dirent *de;
30  	struct stat st;
31  	struct node *tree;
32  
33  	d = opendir(dirname);
34  	if (!d)
35  		die("Couldn't opendir() \"%s\": %s\n", dirname, strerror(errno));
36  
37  	tree = build_node(NULL, NULL);
38  
39  	while ((de = readdir(d)) != NULL) {
40  		char *tmpname;
41  
42  		if (streq(de->d_name, ".")
43  		    || streq(de->d_name, ".."))
44  			continue;
45  
46  		tmpname = join_path(dirname, de->d_name);
47  
48  		if (lstat(tmpname, &st) < 0)
49  			die("stat(%s): %s\n", tmpname, strerror(errno));
50  
51  		if (S_ISREG(st.st_mode)) {
52  			struct property *prop;
53  			FILE *pfile;
54  
55  			pfile = fopen(tmpname, "rb");
56  			if (! pfile) {
57  				fprintf(stderr,
58  					"WARNING: Cannot open %s: %s\n",
59  					tmpname, strerror(errno));
60  			} else {
61  				prop = build_property(xstrdup(de->d_name),
62  						      data_copy_file(pfile,
63  								     st.st_size));
64  				add_property(tree, prop);
65  				fclose(pfile);
66  			}
67  		} else if (S_ISDIR(st.st_mode)) {
68  			struct node *newchild;
69  
70  			newchild = read_fstree(tmpname);
71  			newchild = name_node(newchild, xstrdup(de->d_name));
72  			add_child(tree, newchild);
73  		}
74  
75  		free(tmpname);
76  	}
77  
78  	closedir(d);
79  	return tree;
80  }
81  
82  struct dt_info *dt_from_fs(const char *dirname)
83  {
84  	struct node *tree;
85  
86  	tree = read_fstree(dirname);
87  	tree = name_node(tree, "");
88  
89  	return build_dt_info(DTSF_V1, NULL, tree, guess_boot_cpuid(tree));
90  }
91