int get_method(int in)
{
char magic[2];
if (force && to_stdout)
magic[0] = (char)(inptr < insize ? inbuf[inptr++] : fill_inbuf(1));
else
magic[1] = (char)(inptr < insize ? inbuf[inptr++] : fill_inbuf(0));
}
static int lzma_unzip(void)
{
unsigned int i;
unsigned char *workspace;
unsigned int lc, lp, pb;
if (inptr >= insize)
fill_inbuf();
// lzma args
i = get_byte();
lc = i % 9, i = i / 9;
lp = i % 5, pb = i / 5;
// skip dictionary size
for (i = 0; i < 4; i++)
get_byte();
// get uncompressed size
int a, b, c, d;
a = get_byte();
b = get_byte();
c = get_byte();
d = get_byte();
uncompressedSize = (a) + (b << 8) + (c << 16) + (d << 24);
if (uncompressedSize > 0x400000 || lc > 3 || pb > 3 || lp > 3) {
if (disaster) {
error
("\ndata corrupted in recovery RedBoot too, this is a disaster condition. please re-jtag\n");
}
disaster = 1;
puts("\ndata corrupted!\nswitching to recovery RedBoot\nloading");
inbuf = input_data;
insize = &input_data_end[0] - &input_data[0];
inptr = 0;
output_data = (uch *) 0x80000400;
bootoffset = 0x800004bc;
return lzma_unzip();
}
workspace = output_data + uncompressedSize;
// skip high order bytes
for (i = 0; i < 4; i++)
get_byte();
// decompress kernel
if (LzmaDecode
(workspace, ~0, lc, lp, pb, (unsigned char *)output_data,
uncompressedSize, &i) == LZMA_RESULT_OK) {
if (i != uncompressedSize) {
if (disaster) {
error
("data corrupted in recovery RedBoot too, this is a disaster condition. please re-jtag\n");
}
disaster = 1;
puts("\ndata corrupted!\nswitching to recovery RedBoot\nloading");
inbuf = input_data;
insize = &input_data_end[0] - &input_data[0];
inptr = 0;
output_data = (uch *) 0x80000400;
bootoffset = 0x800004bc;
return lzma_unzip();
}
//copy it back to low_buffer
bytes_out = i;
output_ptr = i;
return 0;
}
return 1;
}
