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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: fpart/src/cmd_create.c $ */
/* */
/* OpenPOWER FFS Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2014,2015 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/*
* File: create.c
* Author: Shaun Wetzstein <shaun@us.ibm.com>
* Descr: --create implementation
* Date: 01/30/2013
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <unistd.h>
#include <getopt.h>
#include <errno.h>
#include <ctype.h>
#include <regex.h>
#include <clib/attribute.h>
#include <clib/assert.h>
#include <clib/list.h>
#include <clib/list_iter.h>
#include <clib/misc.h>
#include <clib/min.h>
#include <clib/err.h>
#include <clib/raii.h>
#include "main.h"
int command_create(args_t * args)
{
assert(args != NULL);
uint32_t block = 0;
uint32_t size = 0;
uint32_t pad = 0xff;
if (parse_size(args->block, &block) < 0)
return -1;
if (parse_size(args->size, &size) < 0)
return -1;
if (args->pad != NULL)
if (parse_size(args->pad, &pad) < 0)
return -1;
struct stat st;
if (stat(args->target, &st) < 0) {
if (errno == ENOENT) {
create_regular_file(args->target, size, (uint8_t)pad);
} else {
ERRNO(errno);
return -1;
}
} else {
if (st.st_size != size) {
create_regular_file(args->target, size, (uint8_t)pad);
} else {
if (args->force != f_FORCE && st.st_size != size) {
UNEXPECTED("--size '%d' differs from actual "
"size '%lld', use --force to "
"override", size, (long long)st.st_size);
return -1;
}
}
}
/* ========================= */
int create(args_t * args, off_t poffset)
{
if (args->verbose == f_VERBOSE)
printf("%llx: create partition table\n", (long long)poffset);
const char * target = args->target;
int debug = args->debug;
RAII(FILE*, file, fopen_generic(target, "r+", debug), fclose);
if (file == NULL)
return -1;
RAII(ffs_t*, ffs, __ffs_fcreate(file, poffset, block,
size / block), __ffs_fclose);
if (ffs == NULL)
return -1;
return 0;
}
/* ========================= */
return command(args, create);
}
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