1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun #include "dtc.h"
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <dirent.h>
9*4882a593Smuzhiyun #include <sys/stat.h>
10*4882a593Smuzhiyun
read_fstree(const char * dirname)11*4882a593Smuzhiyun static struct node *read_fstree(const char *dirname)
12*4882a593Smuzhiyun {
13*4882a593Smuzhiyun DIR *d;
14*4882a593Smuzhiyun struct dirent *de;
15*4882a593Smuzhiyun struct stat st;
16*4882a593Smuzhiyun struct node *tree;
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun d = opendir(dirname);
19*4882a593Smuzhiyun if (!d)
20*4882a593Smuzhiyun die("Couldn't opendir() \"%s\": %s\n", dirname, strerror(errno));
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun tree = build_node(NULL, NULL, NULL);
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun while ((de = readdir(d)) != NULL) {
25*4882a593Smuzhiyun char *tmpname;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun if (streq(de->d_name, ".")
28*4882a593Smuzhiyun || streq(de->d_name, ".."))
29*4882a593Smuzhiyun continue;
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun tmpname = join_path(dirname, de->d_name);
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun if (stat(tmpname, &st) < 0)
34*4882a593Smuzhiyun die("stat(%s): %s\n", tmpname, strerror(errno));
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun if (S_ISREG(st.st_mode)) {
37*4882a593Smuzhiyun struct property *prop;
38*4882a593Smuzhiyun FILE *pfile;
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun pfile = fopen(tmpname, "rb");
41*4882a593Smuzhiyun if (! pfile) {
42*4882a593Smuzhiyun fprintf(stderr,
43*4882a593Smuzhiyun "WARNING: Cannot open %s: %s\n",
44*4882a593Smuzhiyun tmpname, strerror(errno));
45*4882a593Smuzhiyun } else {
46*4882a593Smuzhiyun prop = build_property(xstrdup(de->d_name),
47*4882a593Smuzhiyun data_copy_file(pfile,
48*4882a593Smuzhiyun st.st_size),
49*4882a593Smuzhiyun NULL);
50*4882a593Smuzhiyun add_property(tree, prop);
51*4882a593Smuzhiyun fclose(pfile);
52*4882a593Smuzhiyun }
53*4882a593Smuzhiyun } else if (S_ISDIR(st.st_mode)) {
54*4882a593Smuzhiyun struct node *newchild;
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun newchild = read_fstree(tmpname);
57*4882a593Smuzhiyun newchild = name_node(newchild, xstrdup(de->d_name));
58*4882a593Smuzhiyun add_child(tree, newchild);
59*4882a593Smuzhiyun }
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun free(tmpname);
62*4882a593Smuzhiyun }
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun closedir(d);
65*4882a593Smuzhiyun return tree;
66*4882a593Smuzhiyun }
67*4882a593Smuzhiyun
dt_from_fs(const char * dirname)68*4882a593Smuzhiyun struct dt_info *dt_from_fs(const char *dirname)
69*4882a593Smuzhiyun {
70*4882a593Smuzhiyun struct node *tree;
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun tree = read_fstree(dirname);
73*4882a593Smuzhiyun tree = name_node(tree, "");
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun return build_dt_info(DTSF_V1, NULL, tree, guess_boot_cpuid(tree));
76*4882a593Smuzhiyun }
77