1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* rdsquashfs.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#include "rdsquashfs.h"
static void dump_xattrs(fstree_t *fs, tree_xattr_t *xattr)
{
const char *key, *value;
size_t i;
for (i = 0; i < xattr->num_attr; ++i) {
key = str_table_get_string(&fs->xattr_keys,
xattr->attr[i].key_index);
value = str_table_get_string(&fs->xattr_values,
xattr->attr[i].value_index);
printf("%s=%s\n", key, value);
}
}
int main(int argc, char **argv)
{
int status = EXIT_FAILURE;
sqfs_reader_t sqfs;
tree_node_t *n;
options_t opt;
process_command_line(&opt, argc, argv);
if (sqfs_reader_open(&sqfs, opt.image_name, opt.rdtree_flags))
goto out_cmd;
if (opt.cmdpath != NULL) {
n = fstree_node_from_path(&sqfs.fs, opt.cmdpath);
if (n == NULL) {
perror(opt.cmdpath);
goto out_fs;
}
} else {
n = sqfs.fs.root;
}
switch (opt.op) {
case OP_LS:
list_files(n);
break;
case OP_CAT:
if (!S_ISREG(n->mode)) {
fprintf(stderr, "/%s: not a regular file\n",
opt.cmdpath);
goto out_fs;
}
if (data_reader_dump_file(sqfs.data, n->data.file,
STDOUT_FILENO, false))
goto out_fs;
break;
case OP_UNPACK:
if (opt.unpack_root != NULL) {
if (mkdir_p(opt.unpack_root))
return -1;
if (pushd(opt.unpack_root))
return -1;
}
if (restore_fstree(n, opt.flags))
goto out_fs;
if (fill_unpacked_files(&sqfs.fs, sqfs.data,
opt.flags, opt.num_jobs))
goto out_fs;
if (update_tree_attribs(&sqfs.fs, n, opt.flags))
goto out_fs;
if (opt.unpack_root != NULL && popd() != 0)
goto out_fs;
break;
case OP_DESCRIBE:
if (describe_tree(sqfs.fs.root, opt.unpack_root))
goto out_fs;
break;
case OP_RDATTR:
if (n->xattr != NULL)
dump_xattrs(&sqfs.fs, n->xattr);
break;
}
status = EXIT_SUCCESS;
out_fs:
sqfs_reader_close(&sqfs);
out_cmd:
free(opt.cmdpath);
return status;
}
|
