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/*
* Copyright (C) 2017 Pali Rohár <pali.rohar@gmail.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include "libudffs.h"
#include "options.h"
static struct option long_options[] = {
{ "help", no_argument, NULL, OPT_HELP },
{ "blocksize", required_argument, NULL, OPT_BLK_SIZE },
{ "vatblock", required_argument, NULL, OPT_VAT_BLOCK },
{ "locale", no_argument, NULL, OPT_LOCALE },
{ "u8", no_argument, NULL, OPT_UNICODE8 },
{ "u16", no_argument, NULL, OPT_UNICODE16 },
{ "utf8", no_argument, NULL, OPT_UTF8 },
{ 0, 0, NULL, 0 },
};
static void usage(void)
{
fprintf(stderr, "udfinfo from " PACKAGE_NAME " " PACKAGE_VERSION "\n"
"Usage:\n"
"\tudfinfo [--locale|--u8|--u16|--utf8] [-b|--blocksize=block-size] [--vatblock=block] device\n"
);
exit(1);
}
static unsigned long int strtoul_safe(const char *str, int base, int *failed)
{
char *endptr = NULL;
unsigned long int ret;
errno = 0;
ret = strtoul(str, &endptr, base);
*failed = (!*str || *endptr || errno) ? 1 : 0;
return ret;
}
void parse_args(int argc, char *argv[], struct udf_disc *disc, char **filename)
{
unsigned long int value;
int failed;
int ret;
while ((ret = getopt_long(argc, argv, "b:h", long_options, NULL)) != EOF)
{
switch (ret)
{
case OPT_HELP:
case 'h':
usage();
break;
case OPT_BLK_SIZE:
case 'b':
value = strtoul_safe(optarg, 0, &failed);
if (failed || value < 512 || value > 32768 || (value & (value - 1)))
{
fprintf(stderr, "%s: Error: Invalid value for option --blocksize\n", appname);
exit(1);
}
disc->blocksize = value;
break;
case OPT_VAT_BLOCK:
value = strtoul_safe(optarg, 0, &failed);
if (failed || value > UINT32_MAX)
{
fprintf(stderr, "%s: Error: Invalid value for option --vatblock\n", appname);
exit(1);
}
disc->vat_block = value;
break;
case OPT_UNICODE8:
disc->flags &= ~FLAG_CHARSET;
disc->flags |= FLAG_UNICODE8;
break;
case OPT_UNICODE16:
disc->flags &= ~FLAG_CHARSET;
disc->flags |= FLAG_UNICODE16;
break;
case OPT_UTF8:
disc->flags &= ~FLAG_CHARSET;
disc->flags |= FLAG_UTF8;
break;
case OPT_LOCALE:
disc->flags &= ~FLAG_CHARSET;
disc->flags |= FLAG_LOCALE;
break;
default:
usage();
break;
}
}
if (optind+1 != argc)
usage();
*filename = argv[optind];
}
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