35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2012 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/types.h>
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#include <grub/time.h>
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#include <grub/misc.h>
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#include <grub/acpi.h>
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/* Simple checksum by summing all bytes. Used by ACPI and SMBIOS. */
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grub_uint8_t
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grub_byte_checksum (void *base, grub_size_t size)
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{
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grub_uint8_t *ptr;
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grub_uint8_t ret = 0;
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for (ptr = (grub_uint8_t *) base; ptr < ((grub_uint8_t *) base) + size;
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ptr++)
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ret += *ptr;
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return ret;
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}
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