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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright © 2010 - Maxim Levitsky
*
* mtd_probe 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.
*
* mtd_probe 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 mtd_probe; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <mtd/mtd-user.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include "alloc-util.h"
#include "build.h"
#include "fd-util.h"
#include "main-func.h"
#include "mtd_probe.h"
static const char *arg_device = NULL;
static int parse_argv(int argc, char *argv[]) {
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'v' },
{}
};
int c;
while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
switch (c) {
case 'h':
printf("%s /dev/mtd[n]\n\n"
" -h --help Show this help text\n"
" --version Show package version\n",
program_invocation_short_name);
return 0;
case 'v':
return version();
case '?':
return -EINVAL;
default:
assert_not_reached();
}
if (argc > 2)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Error: unexpected argument.");
arg_device = argv[optind];
return 1;
}
static int run(int argc, char** argv) {
_cleanup_close_ int mtd_fd = -EBADF;
mtd_info_t mtd_info;
int r;
r = parse_argv(argc, argv);
if (r <= 0)
return r;
mtd_fd = open(argv[1], O_RDONLY|O_CLOEXEC|O_NOCTTY);
if (mtd_fd < 0)
return log_error_errno(errno, "Failed to open: %m");
if (ioctl(mtd_fd, MEMGETINFO, &mtd_info) < 0)
return log_error_errno(errno, "MEMGETINFO ioctl failed: %m");
return probe_smart_media(mtd_fd, &mtd_info);
}
DEFINE_MAIN_FUNCTION(run);
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