uniqueid.c File Reference

#include "diskpart.h"
#include <debug.h>

Include dependency graph for uniqueid.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
EXIT_CODE	UniqueIdDisk (_In_ INT argc, _In_ PWSTR *argv)

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 11 of file uniqueid.c.

Function Documentation

UniqueIdDisk()

EXIT_CODE UniqueIdDisk	(	_In_ INT	argc,
		_In_ PWSTR *	argv
	)

Definition at line 17 of file uniqueid.c.

{
    WCHAR szBuffer[40];
    PWSTR pszSuffix, pszId = NULL;
    INT i;
    ULONG ulValue;
 
    if (CurrentDisk == NULL)
    {
        ConResPuts(StdOut, IDS_SELECT_NO_DISK);
        return EXIT_SUCCESS;
    }
 
    if (argc == 2)
    {
        ConPuts(StdOut, L"\n");
        if (CurrentDisk->LayoutBuffer->PartitionStyle == PARTITION_STYLE_GPT)
            PrintGUID(szBuffer, &CurrentDisk->LayoutBuffer->Gpt.DiskId);
        else if (CurrentDisk->LayoutBuffer->PartitionStyle == PARTITION_STYLE_MBR)
            swprintf(szBuffer, L"%08lx", CurrentDisk->LayoutBuffer->Mbr.Signature);
        else
            wcscpy(szBuffer, L"00000000");
        ConPrintf(StdOut, L"Disk ID: %s\n", szBuffer);
        ConPuts(StdOut, L"\n");
        return EXIT_SUCCESS;
    }
 
    if (argc != 3)
    {
        ConResPuts(StdErr, IDS_ERROR_INVALID_ARGS);
        return EXIT_SUCCESS;
    }
 
    for (i = 1; i < argc; i++)
    {
        if (_wcsicmp(argv[i], L"noerr") == 0)
        {
            /* noerr */
            DPRINT("NOERR\n");
            ConPuts(StdOut, L"The NOERR option is not supported yet!\n");
        }
    }
 
    for (i = 1; i < argc; i++)
    {
        if (HasPrefix(argv[2], L"id=", &pszSuffix))
        {
            /* id=<Byte>|<GUID> */
            DPRINT("ID : %s\n", pszSuffix);
            pszId = pszSuffix;
        }
        else if (_wcsicmp(argv[i], L"noerr") == 0)
        {
            /* noerr - Already handled above */
        }
        else
        {
            ConResPuts(StdErr, IDS_ERROR_INVALID_ARGS);
            return EXIT_SUCCESS;
        }
    }
 
    if (CurrentDisk->PartitionStyle == PARTITION_STYLE_GPT)
    {
        if (!StringToGUID(&CurrentDisk->LayoutBuffer->Gpt.DiskId, pszId))
        {
            ConResPuts(StdErr, IDS_ERROR_INVALID_ARGS);
            return EXIT_SUCCESS;
        }
 
        CurrentDisk->Dirty = TRUE;
        UpdateGptDiskLayout(CurrentDisk, FALSE);
        WriteGptPartitions(CurrentDisk);
    }
    else if (CurrentDisk->PartitionStyle == PARTITION_STYLE_MBR)
    {
        if ((pszId == NULL) ||
            (wcslen(pszId) != 8) ||
            (IsHexString(pszId) == FALSE))
        {
            ConResPuts(StdErr, IDS_ERROR_INVALID_ARGS);
            return EXIT_SUCCESS;
        }
 
        ulValue = wcstoul(pszId, NULL, 16);
        if ((ulValue == 0) && (errno == ERANGE))
        {
            ConResPuts(StdErr, IDS_ERROR_INVALID_ARGS);
            return EXIT_SUCCESS;
        }
 
        DPRINT("New Signature: 0x%08lx\n", ulValue);
        CurrentDisk->LayoutBuffer->Mbr.Signature = ulValue;
        CurrentDisk->Dirty = TRUE;
        UpdateMbrDiskLayout(CurrentDisk);
        WriteMbrPartitions(CurrentDisk);
    }
    else
    {
        ConResPuts(StdOut, IDS_UNIQUID_DISK_INVALID_STYLE);
    }
 
    return EXIT_SUCCESS;
}