sid.c

一个类似windows

        }
        if (csubauth == 0)
        {
            TRACE("SubAuthorityCount is 0\n");
            goto lend; /* ERROR_INVALID_SID */
        }

	pisid->SubAuthorityCount = csubauth;

        /* Advance to identifier authority */
	while (*StringSid && *StringSid != '-')
            StringSid++;
        if (*StringSid == '-')
            StringSid++;

        /* MS' implementation can't handle values greater than 2^32 - 1, so
         * we don't either; assume most significant bytes are always 0
         */
        pisid->IdentifierAuthority.Value[0] = 0;
        pisid->IdentifierAuthority.Value[1] = 0;
        identAuth = atoiW(StringSid);
        pisid->IdentifierAuthority.Value[5] = identAuth & 0xff;
        pisid->IdentifierAuthority.Value[4] = (identAuth & 0xff00) >> 8;
        pisid->IdentifierAuthority.Value[3] = (identAuth & 0xff0000) >> 16;
        pisid->IdentifierAuthority.Value[2] = (identAuth & 0xff000000) >> 24;

        /* Advance to first sub authority */
        while (*StringSid && *StringSid != '-')
            StringSid++;
        if (*StringSid == '-')
            StringSid++;

        while (*StringSid)
	{	
	    while (*StringSid && *StringSid != '-')
                StringSid++;

            pisid->SubAuthority[i++] = atoiW(StringSid);
        }

	if (i != pisid->SubAuthorityCount)
            goto lend; /* ERROR_INVALID_SID */

        bret = TRUE;
    }
    else /* String constant format  - Only available in winxp and above */
    {
        pisid->Revision = SDDL_REVISION;
	pisid->SubAuthorityCount = 1;

	FIXME("String constant not supported: %s\n", debugstr_wn(StringSid, 2));

	/* TODO: Lookup string of well-known SIDs in table */
	pisid->IdentifierAuthority.Value[5] = 0;
	pisid->SubAuthority[0] = 0;

        bret = TRUE;
    }

lend:
    if (!bret)
        SetLastError(ERROR_INVALID_SID);

    TRACE("returning %s\n", bret ? "TRUE" : "FALSE");
    return bret;
}

/* Exported functions */

/*
 * @implemented
 */
BOOL STDCALL
AllocateLocallyUniqueId(PLUID Luid)
{
  NTSTATUS Status;

  Status = NtAllocateLocallyUniqueId (Luid);
  if (!NT_SUCCESS (Status))
    {
      SetLastError (RtlNtStatusToDosError (Status));
      return FALSE;
    }

  return TRUE;
}


/*
 * @implemented
 */
BOOL STDCALL
AllocateAndInitializeSid (PSID_IDENTIFIER_AUTHORITY pIdentifierAuthority,
			  BYTE nSubAuthorityCount,
			  DWORD dwSubAuthority0,
			  DWORD dwSubAuthority1,
			  DWORD dwSubAuthority2,
			  DWORD dwSubAuthority3,
			  DWORD dwSubAuthority4,
			  DWORD dwSubAuthority5,
			  DWORD dwSubAuthority6,
			  DWORD dwSubAuthority7,
			  PSID *pSid)
{
  NTSTATUS Status;

  Status = RtlAllocateAndInitializeSid (pIdentifierAuthority,
					nSubAuthorityCount,
					dwSubAuthority0,
					dwSubAuthority1,
	                                      dwSubAuthority2,
	                                      dwSubAuthority3,
	                                      dwSubAuthority4,
	                                      dwSubAuthority5,
	                                      dwSubAuthority6,
	                                      dwSubAuthority7,
	                                      pSid);
  if (!NT_SUCCESS (Status))
    {
      SetLastError (RtlNtStatusToDosError (Status));
      return FALSE;
    }

  return TRUE;
}


/*
 * @implemented
 */
BOOL STDCALL
CopySid (DWORD nDestinationSidLength,
	 PSID pDestinationSid,
	 PSID pSourceSid)
{
  NTSTATUS Status;

  Status = RtlCopySid (nDestinationSidLength,
		       pDestinationSid,
		       pSourceSid);
  if (!NT_SUCCESS (Status))
    {
      SetLastError (RtlNtStatusToDosError (Status));
      return FALSE;
    }

  return TRUE;
}
/* Winehq cvs 20050916 */
/******************************************************************************
 * ConvertStringSecurityDescriptorToSecurityDescriptorW [ADVAPI32.@]
 * @implemented
 */
BOOL WINAPI ConvertStringSecurityDescriptorToSecurityDescriptorW(
        LPCWSTR StringSecurityDescriptor,
        DWORD StringSDRevision,
        PSECURITY_DESCRIPTOR* SecurityDescriptor,
        PULONG SecurityDescriptorSize)
{
    DWORD cBytes;
    SECURITY_DESCRIPTOR* psd;
    BOOL bret = FALSE;

    TRACE("%s\n", debugstr_w(StringSecurityDescriptor));

    if (GetVersion() & 0x80000000)
    {
        SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
        goto lend;
    }
    else if (StringSDRevision != SID_REVISION)
    {
        SetLastError(ERROR_UNKNOWN_REVISION);
	goto lend;
    }

    /* Compute security descriptor length */
    if (!ParseStringSecurityDescriptorToSecurityDescriptor(StringSecurityDescriptor,
        NULL, &cBytes))
	goto lend;

    psd = *SecurityDescriptor = (SECURITY_DESCRIPTOR*) LocalAlloc(
        GMEM_ZEROINIT, cBytes);

    psd->Revision = SID_REVISION;
    psd->Control |= SE_SELF_RELATIVE;

    if (!ParseStringSecurityDescriptorToSecurityDescriptor(StringSecurityDescriptor,
        psd, &cBytes))
    {
        LocalFree(psd);
	goto lend;
    }

    if (SecurityDescriptorSize)
        *SecurityDescriptorSize = cBytes;

    bret = TRUE;
 
lend:
    TRACE(" ret=%d\n", bret);
    return bret;
}

/* Winehq cvs 20050916 */
/******************************************************************************
 * ConvertStringSecurityDescriptorToSecurityDescriptorA [ADVAPI32.@]
 * @implemented
 */
BOOL WINAPI ConvertStringSecurityDescriptorToSecurityDescriptorA(
        LPCSTR StringSecurityDescriptor,
        DWORD StringSDRevision,
        PSECURITY_DESCRIPTOR* SecurityDescriptor,
        PULONG SecurityDescriptorSize)
{
    UINT len;
    BOOL ret = FALSE;
    LPWSTR StringSecurityDescriptorW;

    len = MultiByteToWideChar(CP_ACP, 0, StringSecurityDescriptor, -1, NULL, 0);
    StringSecurityDescriptorW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));

    if (StringSecurityDescriptorW)
    {
        MultiByteToWideChar(CP_ACP, 0, StringSecurityDescriptor, -1, StringSecurityDescriptorW, len);

        ret = ConvertStringSecurityDescriptorToSecurityDescriptorW(StringSecurityDescriptorW,
                                                                   StringSDRevision, SecurityDescriptor,
                                                                   SecurityDescriptorSize);
        HeapFree(GetProcessHeap(), 0, StringSecurityDescriptorW);
    }

    return ret;
}

/*
 * @implemented
 */
BOOL STDCALL
EqualPrefixSid (PSID pSid1,
		PSID pSid2)
{
  return RtlEqualPrefixSid (pSid1, pSid2);
}


/*
 * @implemented
 */
BOOL STDCALL
EqualSid (PSID pSid1,
	  PSID pSid2)
{
  return RtlEqualSid (pSid1, pSid2);
}


/*
 * @implemented
 *
 * RETURNS
 *  Docs says this function does NOT return a value
 *  even thou it's defined to return a PVOID...
 */
PVOID STDCALL
FreeSid (PSID pSid)
{
   return RtlFreeSid (pSid);
}


/*
 * @implemented
 */
DWORD STDCALL
GetLengthSid (PSID pSid)
{
  return (DWORD)RtlLengthSid (pSid);
}


/*
 * @implemented
 */
PSID_IDENTIFIER_AUTHORITY STDCALL
GetSidIdentifierAuthority (PSID pSid)
{
  return RtlIdentifierAuthoritySid (pSid);
}


/*
 * @implemented
 */
DWORD STDCALL
GetSidLengthRequired (UCHAR nSubAuthorityCount)
{
  return (DWORD)RtlLengthRequiredSid (nSubAuthorityCount);
}


/*
 * @implemented
 */
PDWORD STDCALL
GetSidSubAuthority (PSID pSid,
		    DWORD nSubAuthority)
{
  return (PDWORD)RtlSubAuthoritySid (pSid, nSubAuthority);
}


/*
 * @implemented
 */
PUCHAR STDCALL
GetSidSubAuthorityCount (PSID pSid)
{
  return RtlSubAuthorityCountSid (pSid);
}


/*
 * @implemented
 */
BOOL STDCALL
InitializeSid (PSID Sid,
	       PSID_IDENTIFIER_AUTHORITY pIdentifierAuthority,
	       BYTE nSubAuthorityCount)
{
  NTSTATUS Status;

  Status = RtlInitializeSid (Sid,
			     pIdentifierAuthority,
			     nSubAuthorityCount);
  if (!NT_SUCCESS (Status))
    {
      SetLastError (RtlNtStatusToDosError (Status));
      return FALSE;
    }

  return TRUE;
}


/*
 * @implemented
 */
BOOL STDCALL
IsValidSid (PSID pSid)
{
  return (BOOL)RtlValidSid (pSid);
}

/*
 * @implemented
 */
BOOL STDCALL
ConvertSidToStringSidW(PSID Sid, LPWSTR *StringSid)
{
  NTSTATUS Status;
  UNICODE_STRING UnicodeString;
  WCHAR FixedBuffer[64];

  if (! RtlValidSid(Sid))
    {
      SetLastError(ERROR_INVALID_SID);
      return FALSE;
    }

  UnicodeString.Length = 0;
  UnicodeString.MaximumLength = sizeof(FixedBuffer);
  UnicodeString.Buffer = FixedBuffer;
  Status = RtlConvertSidToUnicodeString(&UnicodeString, Sid, FALSE);
  if (STATUS_BUFFER_TOO_SMALL == Status)
    {
      Status = RtlConvertSidToUnicodeString(&UnicodeString, Sid, TRUE);
    }
  if (! NT_SUCCESS(Status))
    {
      SetLastError(RtlNtStatusToDosError(Status));
      return FALSE;
    }

  *StringSid = LocalAlloc(LMEM_FIXED, UnicodeString.Length + sizeof(WCHAR));
  if (NULL == *StringSid)
    {
      if (UnicodeString.Buffer != FixedBuffer)
        {
          RtlFreeUnicodeString(&UnicodeString);
        }
      SetLastError(ERROR_NOT_ENOUGH_MEMORY);
      return FALSE;
    }

  MoveMemory(*StringSid, UnicodeString.Buffer, UnicodeString.Length);
  ZeroMemory((PCHAR) *StringSid + UnicodeString.Length, sizeof(WCHAR));
  if (UnicodeString.Buffer != FixedBuffer)
    {
      RtlFreeUnicodeString(&UnicodeString);
    }

  return TRUE;
}


/*
 * @implemented
 */
BOOL STDCALL
ConvertSidToStringSidA(PSID Sid, LPSTR *StringSid)
{
  LPWSTR StringSidW;
  int Len;

  if (! ConvertSidToStringSidW(Sid, &StringSidW))
    {
      return FALSE;
    }

  Len = WideCharToMultiByte(CP_ACP, 0, StringSidW, -1, NULL, 0, NULL, NULL);
  if (Len <= 0)
    {
      LocalFree(StringSidW);
      SetLastError(ERROR_NOT_ENOUGH_MEMORY);
      return FALSE;
    }
  *StringSid = LocalAlloc(LMEM_FIXED, Len);
  if (NULL == *StringSid)
    {
      LocalFree(StringSidW);
      SetLastError(ERROR_NOT_ENOUGH_MEMORY);
      return FALSE;
    }

  if (! WideCharToMultiByte(CP_ACP, 0, StringSidW, -1, *StringSid, Len, NULL, NULL))
    {
      LocalFree(StringSid);
      LocalFree(StringSidW);
      return FALSE;
    }

  LocalFree(StringSidW);

  return TRUE;
}


/*
 * @unimplemented
 */
BOOL STDCALL
EqualDomainSid(IN PSID pSid1,
               IN PSID pSid2,
               OUT BOOL* pfEqual)
{
    FIXME("%s() not implemented!\n", __FUNCTION__);
    return FALSE;
}


/*
 * @unimplemented
 */
BOOL STDCALL
GetWindowsAccountDomainSid(IN PSID pSid,
                           OUT PSID ppDomainSid,
                           IN OUT DWORD* cbSid)
{
    FIXME("%s() not implemented!\n", __FUNCTION__);
    return FALSE;
}


/*
 * @unimplemented
 */
BOOL STDCALL
CreateWellKnownSid(IN WELL_KNOWN_SID_TYPE WellKnownSidType,
                   IN PSID DomainSid  OPTIONAL,
                   OUT PSID pSid,
                   IN OUT DWORD* cbSid)
{
    FIXME("unimplemented!\n", __FUNCTION__);
    return FALSE;
}


/*
 * @unimplemented
 */
BOOL STDCALL
IsWellKnownSid(IN PSID pSid,
               IN WELL_KNOWN_SID_TYPE WellKnownSidType)
{
    FIXME("unimplemented!\n", __FUNCTION__);
    return FALSE;
}


/*
 * @implemented
 */
BOOL STDCALL
ConvertStringSidToSidA(
                IN LPCSTR StringSid,
                OUT PSID* sid)
{
    BOOL bRetVal = FALSE;

    if (!StringSid || !sid)
        SetLastError(ERROR_INVALID_PARAMETER);
    else
    {
        UINT len = MultiByteToWideChar(CP_ACP, 0, StringSid, -1, NULL, 0);
        LPWSTR wStringSid = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
        MultiByteToWideChar(CP_ACP, 0, StringSid, - 1, wStringSid, len);
        bRetVal = ConvertStringSidToSidW(wStringSid, sid);
        HeapFree(GetProcessHeap(), 0, wStringSid);
    }
    return bRetVal;
}

/*
 * @unimplemented
 */
BOOL STDCALL
ConvertStringSidToSidW(
                IN LPCWSTR StringSid,
                OUT PSID* sid)
{
    FIXME("unimplemented!\n", __FUNCTION__);
    return FALSE;
}


/* EOF */