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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/*
* Copyright (c) International Business Machines Corp., 2006
*
* 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Author: Oliver Lohmann
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <argp.h>
#include <unistd.h>
#include <errno.h>
#include <mtd/ubi-header.h>
#include "config.h"
#include "error.h"
#include "example_ubi.h"
#include "ubimirror.h"
typedef enum action_t {
ACT_NORMAL = 0,
ACT_ARGP_ABORT,
ACT_ARGP_ERR,
} action_t;
#define ABORT_ARGP do { \
state->next = state->argc; \
args->action = ACT_ARGP_ABORT; \
} while (0)
#define ERR_ARGP do { \
state->next = state->argc; \
args->action = ACT_ARGP_ERR; \
} while (0)
#define VOL_ARGS_MAX 2
const char *argp_program_version = PACKAGE_VERSION;
const char *argp_program_bug_address = PACKAGE_BUGREPORT;
static char doc[] = "\nVersion: " PACKAGE_VERSION "\n\tBuilt on "
BUILD_CPU" "BUILD_OS" at "__DATE__" "__TIME__"\n"
"\n"
"ubimirror - mirrors ubi volumes.\n";
static const char copyright [] __attribute__((unused)) =
"(C) IBM Coorporation 2007";
static struct argp_option options[] = {
{ name: "copyright", key: 'c', arg: NULL, flags: 0,
doc: "Print copyright information.",
group: 1 },
{ name: "side", key: 's', arg: "<seqnum>", flags: 0,
doc: "Use the side <seqnum> as source.",
group: 1 },
{ name: NULL, key: 0, arg: NULL, flags: 0, doc: NULL, group: 0 },
};
typedef struct myargs {
action_t action;
int side;
int vol_no; /* index of current volume */
/* @FIXME replace by bootenv_list, makes live easier */
/* @FIXME remove the constraint of two entries in the array */
const char* vol[VOL_ARGS_MAX]; /* comma separated list of src/dst
volumes */
char *arg1;
char **options; /* [STRING...] */
} myargs;
static int
get_update_side(const char* str)
{
uint32_t i = strtoul(str, NULL, 0);
if ((i != 0) && (i != 1)) {
return -1;
}
return i;
}
static error_t
parse_opt(int key, char *arg, struct argp_state *state)
{
int err = 0;
myargs *args = state->input;
switch (key) {
case 'c':
err_msg("%s\n", copyright);
ABORT_ARGP;
break;
case 's':
args->side = get_update_side(arg);
if (args->side < 0) {
err_msg("Unsupported seqnum: %s.\n"
"Supported seqnums are '0' and '1'\n", arg);
ERR_ARGP;
}
break;
case ARGP_KEY_ARG:
/* only two entries allowed */
if (args->vol_no >= VOL_ARGS_MAX) {
err_msg("\n");
argp_usage(state);
ERR_ARGP;
}
args->vol[(args->vol_no)++] = arg;
break;
case ARGP_KEY_END:
if (err) {
err_msg("\n");
argp_usage(state);
ERR_ARGP;
}
break;
default:
return(ARGP_ERR_UNKNOWN);
}
return 0;
}
static struct argp argp = {
options: options,
parser: parse_opt,
args_doc: "<source> <destination>",
doc: doc,
children: NULL,
help_filter: NULL,
argp_domain: NULL,
};
int
main(int argc, char **argv) {
int rc = 0;
unsigned int ids[VOL_ARGS_MAX];
char err_buf[1024];
myargs args = {
.action = ACT_NORMAL,
.side = -1,
.vol_no = 0,
.vol = {"", ""},
.options = NULL,
};
argp_parse(&argp, argc, argv, ARGP_IN_ORDER, 0, &args);
if (args.action == ACT_ARGP_ERR) {
rc = 127;
goto err;
}
if (args.action == ACT_ARGP_ABORT) {
rc = 126;
goto out;
}
if (args.vol_no < VOL_ARGS_MAX) {
fprintf(stderr, "missing volume number for %s\n",
args.vol_no == 0 ? "source and target" : "target");
rc = 125;
goto out;
}
for( rc = 0; rc < args.vol_no; ++rc){
char *endp;
ids[rc] = strtoul(args.vol[rc], &endp, 0);
if( *endp != '\0' ){
fprintf(stderr, "invalid volume number %s\n",
args.vol[rc]);
rc = 125;
goto out;
}
}
rc = ubimirror(EXAMPLE_UBI_DEVICE, args.side, ids, args.vol_no,
err_buf, sizeof(err_buf));
if( rc ){
err_buf[sizeof err_buf - 1] = '\0';
fprintf(stderr, err_buf);
if( rc < 0 )
rc = -rc;
}
out:
err:
return rc;
}
|
