blob: 911384d64786b121f5effbc76a0d22ccbd52eac1 [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 legacy [OPTIONS] DRIVE\n\n"
"Switch GPT header signature to \"CHROMEOS\".\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"
" -e Switch GPT header signature back to \"EFI PART\"\n"
" -p Switch primary GPT header signature to \"IGNOREME\"\n"
"\n", progname);
}
int cmd_legacy(int argc, char *argv[]) {
CgptLegacyParams params;
memset(&params, 0, sizeof(params));
int c;
char* e = 0;
int errorcnt = 0;
opterr = 0; // quiet, you
while ((c=getopt(argc, argv, ":hepD:")) != -1)
{
switch (c)
{
case 'D':
params.drive_size = strtoull(optarg, &e, 0);
errorcnt += check_int_parse(c, e);
break;
case 'e':
if (params.mode) {
Error("Incompatible flags, pick either -e or -p\n");
errorcnt++;
}
params.mode = CGPT_LEGACY_MODE_EFIPART;
break;
case 'p':
if (params.mode) {
Error("Incompatible flags, pick either -e or -p\n");
errorcnt++;
}
params.mode = CGPT_LEGACY_MODE_IGNORE_PRIMARY;
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 CgptLegacy(&params);
}