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92ccc96b SG |
1 | /* |
2 | * Copyright (c) 2012, Google Inc. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License as | |
6 | * published by the Free Software Foundation; either version 2 of | |
7 | * the License, or (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
17 | * MA 02111-1307 USA | |
18 | */ | |
19 | ||
20 | #include <common.h> | |
21 | #include <fs.h> | |
22 | #include <os.h> | |
23 | ||
24 | int sandbox_fs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info) | |
25 | { | |
26 | return 0; | |
27 | } | |
28 | ||
29 | long sandbox_fs_read_at(const char *filename, unsigned long pos, | |
30 | void *buffer, unsigned long maxsize) | |
31 | { | |
32 | ssize_t size; | |
33 | int fd, ret; | |
34 | ||
35 | fd = os_open(filename, OS_O_RDONLY); | |
36 | if (fd < 0) | |
37 | return fd; | |
38 | ret = os_lseek(fd, pos, OS_SEEK_SET); | |
39 | if (ret == -1) { | |
40 | os_close(fd); | |
41 | return ret; | |
42 | } | |
43 | if (!maxsize) | |
44 | maxsize = os_get_filesize(filename); | |
45 | size = os_read(fd, buffer, maxsize); | |
46 | os_close(fd); | |
47 | ||
48 | return size; | |
49 | } | |
50 | ||
7eb2c8d5 SG |
51 | long sandbox_fs_write_at(const char *filename, unsigned long pos, |
52 | void *buffer, unsigned long towrite) | |
53 | { | |
54 | ssize_t size; | |
55 | int fd, ret; | |
56 | ||
57 | fd = os_open(filename, OS_O_RDWR | OS_O_CREAT); | |
58 | if (fd < 0) | |
59 | return fd; | |
60 | ret = os_lseek(fd, pos, OS_SEEK_SET); | |
61 | if (ret == -1) { | |
62 | os_close(fd); | |
63 | return ret; | |
64 | } | |
65 | size = os_write(fd, buffer, towrite); | |
66 | os_close(fd); | |
67 | ||
68 | return size; | |
69 | } | |
70 | ||
92ccc96b SG |
71 | int sandbox_fs_ls(const char *dirname) |
72 | { | |
73 | struct os_dirent_node *head, *node; | |
74 | int ret; | |
75 | ||
76 | ret = os_dirent_ls(dirname, &head); | |
77 | if (ret) | |
78 | return ret; | |
79 | ||
80 | for (node = head; node; node = node->next) { | |
81 | printf("%s %10lu %s\n", os_dirent_get_typename(node->type), | |
82 | node->size, node->name); | |
83 | } | |
84 | ||
85 | return 0; | |
86 | } | |
87 | ||
88 | void sandbox_fs_close(void) | |
89 | { | |
90 | } | |
91 | ||
92 | int fs_read_sandbox(const char *filename, void *buf, int offset, int len) | |
93 | { | |
94 | int len_read; | |
95 | ||
96 | len_read = sandbox_fs_read_at(filename, offset, buf, len); | |
97 | if (len_read == -1) { | |
98 | printf("** Unable to read file %s **\n", filename); | |
99 | return -1; | |
100 | } | |
101 | ||
102 | return len_read; | |
103 | } | |
7eb2c8d5 SG |
104 | |
105 | int fs_write_sandbox(const char *filename, void *buf, int offset, int len) | |
106 | { | |
107 | int len_written; | |
108 | ||
109 | len_written = sandbox_fs_write_at(filename, offset, buf, len); | |
110 | if (len_written == -1) { | |
111 | printf("** Unable to write file %s **\n", filename); | |
112 | return -1; | |
113 | } | |
114 | ||
115 | return len_written; | |
116 | } |