143 lines
4.1 KiB
C
143 lines
4.1 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2010,2012,2013 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 <config.h>
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#include <grub/util/misc.h>
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#include <grub/i18n.h>
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#include <grub/term.h>
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#include <grub/macho.h>
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#define _GNU_SOURCE 1
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <argp.h>
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#include <unistd.h>
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#include <errno.h>
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static void
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write_fat (FILE *in32, FILE *in64, FILE *out, const char *out_filename,
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const char *name32, const char *name64)
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{
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struct grub_macho_fat_header head;
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struct grub_macho_fat_arch arch32, arch64;
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grub_uint32_t size32, size64;
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char *buf;
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fseek (in32, 0, SEEK_END);
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size32 = ftell (in32);
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fseek (in32, 0, SEEK_SET);
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fseek (in64, 0, SEEK_END);
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size64 = ftell (in64);
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fseek (in64, 0, SEEK_SET);
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head.magic = grub_cpu_to_le32_compile_time (GRUB_MACHO_FAT_EFI_MAGIC);
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head.nfat_arch = grub_cpu_to_le32_compile_time (2);
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arch32.cputype = grub_cpu_to_le32_compile_time (GRUB_MACHO_CPUTYPE_IA32);
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arch32.cpusubtype = grub_cpu_to_le32_compile_time (3);
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arch32.offset = grub_cpu_to_le32_compile_time (sizeof (head)
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+ sizeof (arch32)
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+ sizeof (arch64));
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arch32.size = grub_cpu_to_le32 (size32);
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arch32.align = 0;
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arch64.cputype = grub_cpu_to_le32_compile_time (GRUB_MACHO_CPUTYPE_AMD64);
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arch64.cpusubtype = grub_cpu_to_le32_compile_time (3);
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arch64.offset = grub_cpu_to_le32 (sizeof (head) + sizeof (arch32)
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+ sizeof (arch64) + size32);
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arch64.size = grub_cpu_to_le32 (size64);
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arch64.align = 0;
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if (fwrite (&head, 1, sizeof (head), out) != sizeof (head)
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|| fwrite (&arch32, 1, sizeof (arch32), out) != sizeof (arch32)
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|| fwrite (&arch64, 1, sizeof (arch64), out) != sizeof (arch64))
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{
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if (out_filename)
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grub_util_error ("cannot write to `%s': %s",
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out_filename, strerror (errno));
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else
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grub_util_error ("cannot write to the stdout: %s", strerror (errno));
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}
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buf = xmalloc (size32);
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if (fread (buf, 1, size32, in32) != size32)
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grub_util_error (_("cannot read `%s': %s"), name32,
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strerror (errno));
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if (fwrite (buf, 1, size32, out) != size32)
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{
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if (out_filename)
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grub_util_error ("cannot write to `%s': %s",
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out_filename, strerror (errno));
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else
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grub_util_error ("cannot write to the stdout: %s", strerror (errno));
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}
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free (buf);
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buf = xmalloc (size64);
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if (fread (buf, 1, size64, in64) != size64)
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grub_util_error (_("cannot read `%s': %s"), name64,
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strerror (errno));
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if (fwrite (buf, 1, size64, out) != size64)
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{
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if (out_filename)
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grub_util_error ("cannot write to `%s': %s",
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out_filename, strerror (errno));
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else
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grub_util_error ("cannot write to the stdout: %s", strerror (errno));
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}
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free (buf);
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}
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void
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grub_util_glue_efi (const char *file32, const char *file64, const char *outname)
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{
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FILE *in32, *in64, *out;
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in32 = grub_util_fopen (file32, "r");
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if (!in32)
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grub_util_error (_("cannot open `%s': %s"), file32,
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strerror (errno));
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in64 = grub_util_fopen (file64, "r");
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if (!in64)
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grub_util_error (_("cannot open `%s': %s"), file64,
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strerror (errno));
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if (outname)
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out = grub_util_fopen (outname, "wb");
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else
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out = stdout;
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if (!out)
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{
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grub_util_error (_("cannot open `%s': %s"), outname ? : "stdout",
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strerror (errno));
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}
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write_fat (in32, in64, out, outname,
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file32, file64);
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fclose (in32);
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fclose (in64);
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if (out != stdout)
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fclose (out);
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}
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