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92ccc96b SG |
1 | /* |
2 | * Copyright (c) 2012, Google Inc. | |
3 | * | |
1a459660 | 4 | * SPDX-License-Identifier: GPL-2.0+ |
92ccc96b SG |
5 | */ |
6 | ||
7 | #include <common.h> | |
8 | #include <fs.h> | |
9 | #include <os.h> | |
10 | ||
11 | int sandbox_fs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info) | |
12 | { | |
13 | return 0; | |
14 | } | |
15 | ||
16 | long sandbox_fs_read_at(const char *filename, unsigned long pos, | |
17 | void *buffer, unsigned long maxsize) | |
18 | { | |
19 | ssize_t size; | |
20 | int fd, ret; | |
21 | ||
22 | fd = os_open(filename, OS_O_RDONLY); | |
23 | if (fd < 0) | |
24 | return fd; | |
25 | ret = os_lseek(fd, pos, OS_SEEK_SET); | |
26 | if (ret == -1) { | |
27 | os_close(fd); | |
28 | return ret; | |
29 | } | |
30 | if (!maxsize) | |
31 | maxsize = os_get_filesize(filename); | |
32 | size = os_read(fd, buffer, maxsize); | |
33 | os_close(fd); | |
34 | ||
35 | return size; | |
36 | } | |
37 | ||
7eb2c8d5 SG |
38 | long sandbox_fs_write_at(const char *filename, unsigned long pos, |
39 | void *buffer, unsigned long towrite) | |
40 | { | |
41 | ssize_t size; | |
42 | int fd, ret; | |
43 | ||
44 | fd = os_open(filename, OS_O_RDWR | OS_O_CREAT); | |
45 | if (fd < 0) | |
46 | return fd; | |
47 | ret = os_lseek(fd, pos, OS_SEEK_SET); | |
48 | if (ret == -1) { | |
49 | os_close(fd); | |
50 | return ret; | |
51 | } | |
52 | size = os_write(fd, buffer, towrite); | |
53 | os_close(fd); | |
54 | ||
55 | return size; | |
56 | } | |
57 | ||
92ccc96b SG |
58 | int sandbox_fs_ls(const char *dirname) |
59 | { | |
60 | struct os_dirent_node *head, *node; | |
61 | int ret; | |
62 | ||
63 | ret = os_dirent_ls(dirname, &head); | |
64 | if (ret) | |
65 | return ret; | |
66 | ||
67 | for (node = head; node; node = node->next) { | |
68 | printf("%s %10lu %s\n", os_dirent_get_typename(node->type), | |
69 | node->size, node->name); | |
70 | } | |
71 | ||
72 | return 0; | |
73 | } | |
74 | ||
75 | void sandbox_fs_close(void) | |
76 | { | |
77 | } | |
78 | ||
79 | int fs_read_sandbox(const char *filename, void *buf, int offset, int len) | |
80 | { | |
81 | int len_read; | |
82 | ||
83 | len_read = sandbox_fs_read_at(filename, offset, buf, len); | |
84 | if (len_read == -1) { | |
85 | printf("** Unable to read file %s **\n", filename); | |
86 | return -1; | |
87 | } | |
88 | ||
89 | return len_read; | |
90 | } | |
7eb2c8d5 SG |
91 | |
92 | int fs_write_sandbox(const char *filename, void *buf, int offset, int len) | |
93 | { | |
94 | int len_written; | |
95 | ||
96 | len_written = sandbox_fs_write_at(filename, offset, buf, len); | |
97 | if (len_written == -1) { | |
98 | printf("** Unable to write file %s **\n", filename); | |
99 | return -1; | |
100 | } | |
101 | ||
102 | return len_written; | |
103 | } |