Last change
on this file since 3864 was 3621, checked in by Bruno Cornec, 8 years ago |
New 3?3 banch for incorporation of latest busybox 1.25. Changing minor version to handle potential incompatibilities.
|
-
Property svn:eol-style
set to
native
|
File size:
1.0 KB
|
Line | |
---|
1 | /* vi: set sw=4 ts=4: */
|
---|
2 | /*
|
---|
3 | * Utility routines.
|
---|
4 | *
|
---|
5 | * Copyright (C) 2016 Denys Vlasenko
|
---|
6 | *
|
---|
7 | * Licensed under GPLv2, see file LICENSE in this source tree.
|
---|
8 | */
|
---|
9 | //kbuild:lib-y += ubi.o
|
---|
10 |
|
---|
11 | #include "libbb.h"
|
---|
12 |
|
---|
13 | // from ubi-media.h
|
---|
14 | #define UBI_MAX_VOLUME_NAME 127
|
---|
15 | #define UBI_MAX_VOLUMES 128
|
---|
16 |
|
---|
17 | unsigned FAST_FUNC ubi_devnum_from_devname(const char *str)
|
---|
18 | {
|
---|
19 | unsigned ubi_devnum;
|
---|
20 |
|
---|
21 | if (sscanf(str, "/dev/ubi%u", &ubi_devnum) != 1)
|
---|
22 | bb_error_msg_and_die("not an UBI device: '%s'", str);
|
---|
23 | return ubi_devnum;
|
---|
24 | }
|
---|
25 |
|
---|
26 | int FAST_FUNC ubi_get_volid_by_name(unsigned ubi_devnum, const char *vol_name)
|
---|
27 | {
|
---|
28 | unsigned i;
|
---|
29 |
|
---|
30 | for (i = 0; i < UBI_MAX_VOLUMES; i++) {
|
---|
31 | char buf[UBI_MAX_VOLUME_NAME + 1];
|
---|
32 | char fname[sizeof("/sys/class/ubi/ubi%u_%u/name") + 2 * sizeof(int)*3];
|
---|
33 |
|
---|
34 | sprintf(fname, "/sys/class/ubi/ubi%u_%u/name", ubi_devnum, i);
|
---|
35 | if (open_read_close(fname, buf, sizeof(buf)) <= 0)
|
---|
36 | continue;
|
---|
37 |
|
---|
38 | strchrnul(buf, '\n')[0] = '\0';
|
---|
39 | if (strcmp(vol_name, buf) == 0)
|
---|
40 | return i;
|
---|
41 | }
|
---|
42 | bb_error_msg_and_die("volume '%s' not found", vol_name);
|
---|
43 | }
|
---|
Note:
See
TracBrowser
for help on using the repository browser.