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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.
*/
/*
* An utility to create UBI volumes.
*
* Autor: Artem B. Bityutskiy <dedekind@oktetlabs.ru>
*/
#include <stdio.h>
#include <stdint.h>
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "config.h"
#include <libubi.h>
static void usage(void);
static int param_sanity_check(ubi_lib_t lib);
static int parse_options(int argc, char * const argv[]);
/*
* The below variables are set by command line options.
*/
static int vol_id = -1;
static int devn = -1;
int main(int argc, char * const argv[])
{
int err, old_errno;
ubi_lib_t lib;
err = parse_options(argc, argv);
if (err)
return err == 1 ? 0 : -1;
if (devn == -1) {
fprintf(stderr, "Device number was not specified\n");
fprintf(stderr, "Use -h option for help\n");
return -1;
}
err = ubi_open(&lib);
if (err) {
perror("Cannot open libubi");
return -1;
}
err = param_sanity_check(lib);
if (err) {
perror("Input parameters check");
fprintf(stderr, "Use -h option for help\n");
goto out_libubi;
}
err = ubi_rmvol(lib, devn, vol_id);
old_errno = errno;
if (err < 0) {
perror("Cannot remove volume");
fprintf(stderr, " err=%d errno=%d\n", err, old_errno);
goto out_libubi;
}
return 0;
out_libubi:
ubi_close(&lib);
return -1;
}
/* 'getopt()' option string */
static const char *optstring = "hd:n:";
static int parse_options(int argc, char * const argv[])
{
int opt = 0;
while (opt != -1) {
char *endp;
opt = getopt(argc, argv, optstring);
switch (opt) {
case 'h':
usage();
return 1;
case 'n':
vol_id = strtoul(optarg, &endp, 0);
if (*endp != '\0' || endp == optarg || vol_id < 0) {
fprintf(stderr, "Bad volume "
"number: \"%s\"\n", optarg);
goto out;
}
break;
case 'd':
devn = strtoul(optarg, &endp, 0);
if (*endp != '\0' || endp == optarg || devn < 0) {
fprintf(stderr, "Bad UBI device "
"number: \"%s\"\n", optarg);
goto out;
}
break;
case ':':
fprintf(stderr, "Parameter is missing\n");
goto out;
case '?':
fprintf(stderr, "Unknown parameter\n");
goto out;
case -1:
break;
default:
fprintf(stderr, "Internal error\n");
goto out;
}
}
return 0;
out:
errno = EINVAL;
return -1;
}
static int param_sanity_check(ubi_lib_t lib)
{
int err;
struct ubi_info ubi;
if (vol_id == -1) {
fprintf(stderr, "Volume ID was not specified\n");
goto out;
}
err = ubi_get_info(lib, &ubi);
if (err)
return -1;
if (devn >= (int)ubi.dev_count) {
fprintf(stderr, "Device %d does not exist\n", devn);
goto out;
}
return 0;
out:
errno = EINVAL;
return -1;
}
static void usage(void)
{
printf("Usage: ubi_rmvol OPTIONS\n"
"Command line options:\n"
"\t-h - this help message\n"
"\t-d - UBI device number\n"
"\t-n VOLNUM - volume number to remove\n");
}
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