62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/*
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* Copyright (C) 2008 Free Software Foundation, Inc.
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*
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* This program 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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* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/file.h>
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#include <grub/err.h>
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#include <grub/dl.h>
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#include <grub/misc.h>
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#include <grub/aout.h>
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int
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grub_aout_get_type (union grub_aout_header *header)
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{
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int magic;
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magic = AOUT_GETMAGIC (header->aout32);
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if ((magic == AOUT32_OMAGIC) || (magic == AOUT32_NMAGIC) ||
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(magic == AOUT32_ZMAGIC) || (magic == AOUT32_QMAGIC))
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return AOUT_TYPE_AOUT32;
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else if ((magic == AOUT64_OMAGIC) || (magic == AOUT64_NMAGIC) ||
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(magic == AOUT64_ZMAGIC))
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return AOUT_TYPE_AOUT64;
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else
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return AOUT_TYPE_NONE;
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}
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grub_err_t
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grub_aout_load (grub_file_t file, int offset,
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grub_addr_t load_addr,
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int load_size,
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grub_addr_t bss_end_addr)
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{
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if ((grub_file_seek (file, offset)) == (grub_off_t) - 1)
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return grub_errno;
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if (!load_size)
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load_size = file->size - offset;
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grub_file_read (file, (char *) load_addr, load_size);
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if (grub_errno)
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return grub_errno;
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if (bss_end_addr)
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grub_memset ((char *) load_addr + load_size, 0,
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bss_end_addr - load_addr - load_size);
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return GRUB_ERR_NONE;
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}
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