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