1 /* $NetBSD: fstree.c,v 1.1.1.3 2019/12/22 12:34:04 skrll Exp $ */
2
3 // SPDX-License-Identifier: GPL-2.0-or-later
4 /*
5 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
6 */
7
8 #include "dtc.h"
9
10 #include <dirent.h>
11 #include <sys/stat.h>
12
read_fstree(const char * dirname)13 static struct node *read_fstree(const char *dirname)
14 {
15 DIR *d;
16 struct dirent *de;
17 struct stat st;
18 struct node *tree;
19
20 d = opendir(dirname);
21 if (!d)
22 die("Couldn't opendir() \"%s\": %s\n", dirname, strerror(errno));
23
24 tree = build_node(NULL, NULL, NULL);
25
26 while ((de = readdir(d)) != NULL) {
27 char *tmpname;
28
29 if (streq(de->d_name, ".")
30 || streq(de->d_name, ".."))
31 continue;
32
33 tmpname = join_path(dirname, de->d_name);
34
35 if (lstat(tmpname, &st) < 0)
36 die("stat(%s): %s\n", tmpname, strerror(errno));
37
38 if (S_ISREG(st.st_mode)) {
39 struct property *prop;
40 FILE *pfile;
41
42 pfile = fopen(tmpname, "rb");
43 if (! pfile) {
44 fprintf(stderr,
45 "WARNING: Cannot open %s: %s\n",
46 tmpname, strerror(errno));
47 } else {
48 prop = build_property(xstrdup(de->d_name),
49 data_copy_file(pfile,
50 st.st_size),
51 NULL);
52 add_property(tree, prop);
53 fclose(pfile);
54 }
55 } else if (S_ISDIR(st.st_mode)) {
56 struct node *newchild;
57
58 newchild = read_fstree(tmpname);
59 newchild = name_node(newchild, xstrdup(de->d_name));
60 add_child(tree, newchild);
61 }
62
63 free(tmpname);
64 }
65
66 closedir(d);
67 return tree;
68 }
69
dt_from_fs(const char * dirname)70 struct dt_info *dt_from_fs(const char *dirname)
71 {
72 struct node *tree;
73
74 tree = read_fstree(dirname);
75 tree = name_node(tree, "");
76
77 return build_dt_info(DTSF_V1, NULL, tree, guess_boot_cpuid(tree));
78 }
79