Contents of /tags/mkinitrd-6_3_0/busybox/modutils/rmmod.c
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Thu Aug 19 10:14:02 2010 UTC (14 years, 1 month ago) by niro
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File size: 1345 byte(s)
Thu Aug 19 10:14:02 2010 UTC (14 years, 1 month ago) by niro
File MIME type: text/plain
File size: 1345 byte(s)
tagged 'mkinitrd-6_3_0'
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Mini rmmod implementation for busybox |
4 | * |
5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
6 | * Copyright (C) 2008 Timo Teras <timo.teras@iki.fi> |
7 | * |
8 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
9 | */ |
10 | |
11 | #include "libbb.h" |
12 | #include "modutils.h" |
13 | |
14 | int rmmod_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
15 | int rmmod_main(int argc UNUSED_PARAM, char **argv) |
16 | { |
17 | int n; |
18 | unsigned flags = O_NONBLOCK | O_EXCL; |
19 | |
20 | /* Parse command line. */ |
21 | n = getopt32(argv, "wfas"); // -s ignored |
22 | argv += optind; |
23 | if (n & 1) // --wait |
24 | flags &= ~O_NONBLOCK; |
25 | if (n & 2) // --force |
26 | flags |= O_TRUNC; |
27 | if (n & 4) { |
28 | /* Unload _all_ unused modules via NULL delete_module() call */ |
29 | if (bb_delete_module(NULL, flags) != 0 && errno != EFAULT) |
30 | bb_perror_msg_and_die("rmmod"); |
31 | return EXIT_SUCCESS; |
32 | } |
33 | |
34 | if (!*argv) |
35 | bb_show_usage(); |
36 | |
37 | n = ENABLE_FEATURE_2_4_MODULES && get_linux_version_code() < KERNEL_VERSION(2,6,0); |
38 | while (*argv) { |
39 | char modname[MODULE_NAME_LEN]; |
40 | const char *bname; |
41 | |
42 | bname = bb_basename(*argv++); |
43 | if (n) |
44 | safe_strncpy(modname, bname, MODULE_NAME_LEN); |
45 | else |
46 | filename2modname(bname, modname); |
47 | if (bb_delete_module(modname, flags)) |
48 | bb_error_msg_and_die("can't unload '%s': %s", |
49 | modname, moderror(errno)); |
50 | } |
51 | |
52 | return EXIT_SUCCESS; |
53 | } |