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// 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 "cgpt.h"
#include <getopt.h>
#include <string.h>
#include "cgpt_params.h"
static void Usage(void)
{
printf("\nUsage: %s boot [OPTIONS] DRIVE\n\n"
"Edit the PMBR sector for legacy BIOSes\n\n"
"Options:\n"
" -i NUM Set bootable partition\n"
" -b FILE Install bootloader code in the PMBR\n"
" -p Create legacy PMBR partition table\n"
"\n"
"With no options, it will just print the PMBR boot guid\n"
"\n", progname);
}
int cmd_boot(int argc, char *argv[]) {
struct drive drive;
CgptBootParams params;
memset(¶ms, 0, sizeof(params));
int c;
int errorcnt = 0;
char *e = 0;
opterr = 0; // quiet, you
while ((c=getopt(argc, argv, ":hi:b:p")) != -1)
{
switch (c)
{
case 'i':
params.partition = (uint32_t)strtoul(optarg, &e, 0);
if (!*optarg || (e && *e))
{
Error("invalid argument to -%c: \"%s\"\n", c, optarg);
errorcnt++;
}
break;
case 'b':
params.bootfile = optarg;
break;
case 'p':
params.create_pmbr = 1;
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) {
Error("missing drive argument\n");
return CGPT_FAILED;
}
params.driveName = argv[optind];
return cgpt_boot(¶ms);
}
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