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/*-
* Copyright (c) 2010 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <libefi.h>
#include <stdlib.h>
#include "libefi_int.h"
/*
* EFI_STATUS
* GetVariable(
* IN CHAR16 *VariableName,
* IN EFI_GUID *VendorGuid,
* OUT UINT32 *Attributes OPTIONAL,
* IN OUT UINTN *DataSize,
* OUT VOID *Data
* );
*/
int
efi_getvar(char *name, uuid_t *vendor, uint32_t *attrib, size_t *datasize,
void *data)
{
struct iodev_efivar_req req;
int error;
req.namesize = 0;
error = libefi_utf8_to_ucs2(name, &req.namesize, &req.name);
if (error)
return (error);
req.vendor = *vendor;
req.datasize = *datasize;
req.data = data;
req.access = IODEV_EFIVAR_GETVAR;
error = libefi_efivar(&req);
*datasize = req.datasize;
if (!error && attrib != NULL)
*attrib = req.attrib;
free(req.name);
return (error);
}
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