blob: dfa8a1f1f4f5834cc9a1861b7f1d69f530a13b68 [file] [log] [blame]
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <getopt.h>
#include <string.h>
#include "cgpt.h"
#include "vboot_host.h"
extern const char* progname;
static void Usage(void)
{
printf("\nUsage: %s create [OPTIONS] DRIVE\n\n"
"Create or reset an empty GPT.\n\n"
"Options:\n"
" -D NUM Size (in bytes) of the disk where partitions reside;\n"
" default 0, meaning partitions and GPT structs are\n"
" both on DRIVE\n"
" -z Zero the blocks of the GPT table and entries\n"
" -p NUM Size (in blocks) of the disk to pad between the\n"
" primary GPT header and its entries, default 0\n"
"\n", progname);
}
int cmd_create(int argc, char *argv[]) {
CgptCreateParams params;
memset(&params, 0, sizeof(params));
int c;
int errorcnt = 0;
char *e = 0;
opterr = 0; // quiet, you
while ((c=getopt(argc, argv, ":hzp:D:")) != -1)
{
switch (c)
{
case 'D':
params.drive_size = strtoull(optarg, &e, 0);
errorcnt += check_int_parse(c, e);
break;
case 'z':
params.zap = 1;
break;
case 'p':
params.padding = strtoull(optarg, &e, 0);
errorcnt += check_int_parse(c, e);
break;
case 'h':
Usage();
return CGPT_OK;
case '?':
Error("unrecognized option: -%c\n", optopt);
errorcnt++;
break;
case ':':
Error("missing argument to -%c\n", optopt);
errorcnt++;
break;
default:
errorcnt++;
break;
}
}
if (errorcnt)
{
Usage();
return CGPT_FAILED;
}
if (optind >= argc) {
Usage();
return CGPT_FAILED;
}
params.drive_name = argv[optind];
return CgptCreate(&params);
}