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