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#include "project.h"
void
sync_tables (DISK * d)
{
MBR *m;
uint8_t mbuf[512];
GPT_headers h;
int i;
GUID guid_ext3 = GUID_TYPE_LINUX_EXT3;
GUID guid_swap = GUID_TYPE_LINUX_SWAP;
GUID guid_hfs = GUID_TYPE_APPLE_HFS;
GUID guid_efi = GUID_TYPE_SYSTEM;
int mbr_entry = 0;
int seen_linux = 0;
disk_read (d, mbuf, 0, 1);
m = (MBR *) mbuf;
h = headers_get (d);
for (i = 0; i < h.header.n_partition_entries; ++i)
{
GPT_entry e = entry_read (d, &h.header, i);
uint8_t type = 0, bootable = 0;
if (e.start>=2147483648) continue;
if (e.end>=2147483648) continue;
if (!guid_cmp (&e.type, &guid_efi))
{
type = MBR_PARTITION_TYPE_EFI;
}
else if (!guid_cmp (&e.type, &guid_ext3))
{
type = MBR_PARTITION_TYPE_LINUX;
}
else if (!guid_cmp (&e.type, &guid_swap))
{
type = MBR_PARTITION_TYPE_SWAP;
}
else if (!guid_cmp (&e.type, &guid_hfs))
{
type = MBR_PARTITION_TYPE_HFS;
}
if ((type == MBR_PARTITION_TYPE_LINUX) && (!seen_linux))
{
seen_linux++;
bootable++;
}
mbr_entry_from_gpt_entry (&m->entry[mbr_entry++], &h.header, &e,
bootable, type);
if (mbr_entry == 4)
break;
}
for (; mbr_entry < 4; ++mbr_entry)
{
memset (&m->entry[mbr_entry], 0, sizeof (MBR_entry));
}
disk_write (d, mbuf, 0, 1);
}
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