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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
/*
* kmod - one tool to rule them all
*
* Copyright (C) 2011-2013 ProFUSION embedded systems
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <getopt.h>
#include <string.h>
#include <libkmod.h>
#include "kmod.h"
static const char options_s[] = "+hV";
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
{}
};
static const struct kmod_cmd kmod_cmd_help;
static const struct kmod_cmd *kmod_cmds[] = {
&kmod_cmd_help,
&kmod_cmd_list,
&kmod_cmd_static_nodes,
};
static const struct kmod_cmd *kmod_compat_cmds[] = {
&kmod_cmd_compat_lsmod,
&kmod_cmd_compat_rmmod,
&kmod_cmd_compat_insmod,
&kmod_cmd_compat_modinfo,
&kmod_cmd_compat_modprobe,
&kmod_cmd_compat_depmod,
};
static int kmod_help(int argc, char *argv[])
{
size_t i;
printf("kmod - Manage kernel modules: list, load, unload, etc\n"
"Usage:\n"
"\t%s [options] command [command_options]\n\n"
"Options:\n"
"\t-V, --version show version\n"
"\t-h, --help show this help\n\n"
"Commands:\n", basename(argv[0]));
for (i = 0; i < ARRAY_SIZE(kmod_cmds); i++) {
if (kmod_cmds[i]->help != NULL) {
printf(" %-12s %s\n", kmod_cmds[i]->name,
kmod_cmds[i]->help);
}
}
puts("\nkmod also handles gracefully if called from following symlinks:");
for (i = 0; i < ARRAY_SIZE(kmod_compat_cmds); i++) {
if (kmod_compat_cmds[i]->help != NULL) {
printf(" %-12s %s\n", kmod_compat_cmds[i]->name,
kmod_compat_cmds[i]->help);
}
}
return EXIT_SUCCESS;
}
static const struct kmod_cmd kmod_cmd_help = {
.name = "help",
.cmd = kmod_help,
.help = "Show help message",
};
static int handle_kmod_commands(int argc, char *argv[])
{
const char *cmd;
int err = 0;
size_t i;
for (;;) {
int c;
c = getopt_long(argc, argv, options_s, options, NULL);
if (c == -1)
break;
switch (c) {
case 'h':
kmod_help(argc, argv);
return EXIT_SUCCESS;
case 'V':
puts("kmod version " VERSION);
return EXIT_SUCCESS;
case '?':
return EXIT_FAILURE;
default:
fprintf(stderr, "Error: unexpected getopt_long() value '%c'.\n", c);
return EXIT_FAILURE;
}
}
if (optind >= argc) {
fputs("missing command\n", stderr);
goto fail;
}
cmd = argv[optind];
for (i = 0, err = -EINVAL; i < ARRAY_SIZE(kmod_cmds); i++) {
if (strcmp(kmod_cmds[i]->name, cmd) != 0)
continue;
err = kmod_cmds[i]->cmd(--argc, ++argv);
}
if (err < 0) {
fprintf(stderr, "invalid command '%s'\n", cmd);
goto fail;
}
return err;
fail:
kmod_help(argc, argv);
return EXIT_FAILURE;
}
static int handle_kmod_compat_commands(int argc, char *argv[])
{
const char *cmd;
size_t i;
cmd = basename(argv[0]);
for (i = 0; i < ARRAY_SIZE(kmod_compat_cmds); i++) {
if (strcmp(kmod_compat_cmds[i]->name, cmd) == 0)
return kmod_compat_cmds[i]->cmd(argc, argv);
}
return -ENOENT;
}
int main(int argc, char *argv[])
{
int err;
if (strcmp(program_invocation_short_name, "kmod") == 0)
err = handle_kmod_commands(argc, argv);
else
err = handle_kmod_compat_commands(argc, argv);
return err;
}
|
