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/*
* 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
*
* 1.2 Removed argp because we want to use uClibc.
* 1.3 Minor cleanups
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.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"
#define PROGRAM_VERSION "1.3"
typedef enum action_t {
ACT_NORMAL = 0,
ACT_ARGP_ABORT,
ACT_ARGP_ERR,
} action_t;
#define ABORT_ARGP do { \
args->action = ACT_ARGP_ABORT; \
} while (0)
#define ERR_ARGP do { \
args->action = ACT_ARGP_ERR; \
} while (0)
#define VOL_ARGS_MAX 2
static char doc[] = "\nVersion: " PROGRAM_VERSION "\n\tBuilt on "
BUILD_CPU" "BUILD_OS" at "__DATE__" "__TIME__"\n"
"\n"
"ubimirror - mirrors ubi volumes.\n";
static const char *optionsstr =
" -c, --copyright Print copyright information.\n"
" -s, --side=<seqnum> Use the side <seqnum> as source.\n"
" -?, --help Give this help list\n"
" --usage Give a short usage message\n"
" -V, --version Print program version\n";
static const char *usage =
"Usage: ubimirror [-c?V] [-s <seqnum>] [--copyright] [--side=<seqnum>]\n"
" [--help] [--usage] [--version] <source> <destination>\n";
static const char copyright [] __attribute__((unused)) =
"(C) IBM Coorporation 2007";
struct option long_options[] = {
{ .name = "copyright", .has_arg = 0, .flag = NULL, .val = 'c' },
{ .name = "side", .has_arg = 1, .flag = NULL, .val = 's' },
{ .name = "help", .has_arg = 0, .flag = NULL, .val = '?' },
{ .name = "usage", .has_arg = 0, .flag = NULL, .val = 0 },
{ .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' },
{ NULL, 0, NULL, 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 int
parse_opt(int argc, char **argv, myargs *args)
{
while (1) {
int key;
key = getopt_long(argc, argv, "cs:?V", long_options, NULL);
if (key == -1)
break;
switch (key) {
case 'c':
err_msg("%s", copyright);
ABORT_ARGP;
break;
case 's':
args->side = get_update_side(optarg);
if (args->side < 0) {
err_msg("Unsupported seqnum: %s.\n"
"Supported seqnums are '0' "
"and '1'\n", optarg);
ERR_ARGP;
}
break;
case '?': /* help */
err_msg("Usage: ubimirror [OPTION...] "
"<source> <destination>\n");
err_msg("%s", doc);
err_msg("%s", optionsstr);
err_msg("\nReport bugs to %s\n",
PACKAGE_BUGREPORT);
exit(0);
break;
case 'V':
err_msg("%s", PROGRAM_VERSION);
exit(0);
break;
default:
err_msg("%s", usage);
exit(-1);
}
}
while (optind < argc) {
/* only two entries allowed */
if (args->vol_no >= VOL_ARGS_MAX) {
err_msg("%s", usage);
ERR_ARGP;
}
args->vol[(args->vol_no)++] = argv[optind++];
}
return 0;
}
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,
};
parse_opt(argc, argv, &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;
}
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