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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2010,2012,2013 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <grub/util/misc.h>
#include <grub/util/install.h>
#include <grub/i18n.h>
#include <grub/term.h>
#include <grub/macho.h>
#define _GNU_SOURCE 1
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
static void
write_fat (FILE *in32, FILE *in64, FILE *out, const char *out_filename,
const char *name32, const char *name64)
{
struct grub_macho_fat_header head;
struct grub_macho_fat_arch arch32, arch64;
grub_uint32_t size32, size64;
long size;
char *buf;
fseek (in32, 0, SEEK_END);
size = ftell (in32);
if (size < 0)
grub_util_error ("cannot get end of input file '%s': %s",
name32, strerror (errno));
size32 = (grub_uint32_t) size;
fseek (in32, 0, SEEK_SET);
fseek (in64, 0, SEEK_END);
size = ftell (in64);
if (size < 0)
grub_util_error ("cannot get end of input file '%s': %s",
name64, strerror (errno));
size64 = (grub_uint64_t) size;
fseek (in64, 0, SEEK_SET);
head.magic = grub_cpu_to_le32_compile_time (GRUB_MACHO_FAT_EFI_MAGIC);
head.nfat_arch = grub_cpu_to_le32_compile_time (2);
arch32.cputype = grub_cpu_to_le32_compile_time (GRUB_MACHO_CPUTYPE_IA32);
arch32.cpusubtype = grub_cpu_to_le32_compile_time (3);
arch32.offset = grub_cpu_to_le32_compile_time (sizeof (head)
+ sizeof (arch32)
+ sizeof (arch64));
arch32.size = grub_cpu_to_le32 (size32);
arch32.align = 0;
arch64.cputype = grub_cpu_to_le32_compile_time (GRUB_MACHO_CPUTYPE_AMD64);
arch64.cpusubtype = grub_cpu_to_le32_compile_time (3);
arch64.offset = grub_cpu_to_le32 (sizeof (head) + sizeof (arch32)
+ sizeof (arch64) + size32);
arch64.size = grub_cpu_to_le32 (size64);
arch64.align = 0;
if (fwrite (&head, 1, sizeof (head), out) != sizeof (head)
|| fwrite (&arch32, 1, sizeof (arch32), out) != sizeof (arch32)
|| fwrite (&arch64, 1, sizeof (arch64), out) != sizeof (arch64))
{
if (out_filename)
grub_util_error ("cannot write to `%s': %s",
out_filename, strerror (errno));
else
grub_util_error ("cannot write to the stdout: %s", strerror (errno));
}
buf = xmalloc (size32);
if (fread (buf, 1, size32, in32) != size32)
grub_util_error (_("cannot read `%s': %s"), name32,
strerror (errno));
if (fwrite (buf, 1, size32, out) != size32)
{
if (out_filename)
grub_util_error ("cannot write to `%s': %s",
out_filename, strerror (errno));
else
grub_util_error ("cannot write to the stdout: %s", strerror (errno));
}
free (buf);
buf = xmalloc (size64);
if (fread (buf, 1, size64, in64) != size64)
grub_util_error (_("cannot read `%s': %s"), name64,
strerror (errno));
if (fwrite (buf, 1, size64, out) != size64)
{
if (out_filename)
grub_util_error ("cannot write to `%s': %s",
out_filename, strerror (errno));
else
grub_util_error ("cannot write to the stdout: %s", strerror (errno));
}
free (buf);
}
void
grub_util_glue_efi (const char *file32, const char *file64, const char *outname)
{
FILE *in32, *in64, *out;
in32 = grub_util_fopen (file32, "r");
if (!in32)
grub_util_error (_("cannot open `%s': %s"), file32,
strerror (errno));
in64 = grub_util_fopen (file64, "r");
if (!in64)
grub_util_error (_("cannot open `%s': %s"), file64,
strerror (errno));
if (outname)
out = grub_util_fopen (outname, "wb");
else
out = stdout;
if (!out)
{
grub_util_error (_("cannot open `%s': %s"), outname ? : "stdout",
strerror (errno));
}
write_fat (in32, in64, out, outname,
file32, file64);
fclose (in32);
fclose (in64);
if (out != stdout)
fclose (out);
}
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