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/* Copyright 2012 The ChromiumOS Authors
* 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 boot [OPTIONS] DRIVE\n\n"
"Edit the PMBR sector for legacy BIOSes\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"
" -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[]) {
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:pD:")) != -1)
{
switch (c)
{
case 'D':
params.drive_size = strtoull(optarg, &e, 0);
errorcnt += check_int_parse(c, e);
break;
case 'i':
params.partition = (uint32_t)strtoul(optarg, &e, 0);
errorcnt += check_int_parse(c, e);
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.drive_name = argv[optind];
return CgptBoot(¶ms);
}
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