141 lines
2.8 KiB
C
141 lines
2.8 KiB
C
/*
|
|
* cbfstool, CLI utility for CBFS file manipulation
|
|
*
|
|
* Copyright 2013 Google Inc.
|
|
*
|
|
* This program 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; version 2 of the License.
|
|
*
|
|
* This program 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
#include <unistd.h>
|
|
#include <stdint.h>
|
|
#include "common.h"
|
|
|
|
/* The assumption in all this code is that we're given a pointer to enough data.
|
|
* Hence, we do not check for underflow.
|
|
*/
|
|
static uint8_t get8(struct buffer *input)
|
|
{
|
|
uint8_t ret = *input->data++;
|
|
input->size--;
|
|
return ret;
|
|
}
|
|
|
|
static uint16_t get16be(struct buffer *input)
|
|
{
|
|
uint16_t ret;
|
|
ret = get8(input) << 8;
|
|
ret |= get8(input);
|
|
return ret;
|
|
}
|
|
|
|
static uint32_t get32be(struct buffer *input)
|
|
{
|
|
uint32_t ret;
|
|
ret = get16be(input) << 16;
|
|
ret |= get16be(input);
|
|
return ret;
|
|
}
|
|
|
|
static uint64_t get64be(struct buffer *input)
|
|
{
|
|
uint64_t ret;
|
|
ret = get32be(input);
|
|
ret <<= 32;
|
|
ret |= get32be(input);
|
|
return ret;
|
|
}
|
|
|
|
static void put8(struct buffer *input, uint8_t val)
|
|
{
|
|
input->data[input->size] = val;
|
|
input->size++;
|
|
}
|
|
|
|
static void put16be(struct buffer *input, uint16_t val)
|
|
{
|
|
put8(input, val >> 8);
|
|
put8(input, val);
|
|
}
|
|
|
|
static void put32be(struct buffer *input, uint32_t val)
|
|
{
|
|
put16be(input, val >> 16);
|
|
put16be(input, val);
|
|
}
|
|
|
|
static void put64be(struct buffer *input, uint64_t val)
|
|
{
|
|
put32be(input, val >> 32);
|
|
put32be(input, val);
|
|
}
|
|
|
|
static uint16_t get16le(struct buffer *input)
|
|
{
|
|
uint16_t ret;
|
|
ret = get8(input);
|
|
ret |= get8(input) << 8;
|
|
return ret;
|
|
}
|
|
|
|
static uint32_t get32le(struct buffer *input)
|
|
{
|
|
uint32_t ret;
|
|
ret = get16le(input);
|
|
ret |= get16le(input) << 16;
|
|
return ret;
|
|
}
|
|
|
|
static uint64_t get64le(struct buffer *input)
|
|
{
|
|
uint64_t ret;
|
|
uint32_t low;
|
|
low = get32le(input);
|
|
ret = get32le(input);
|
|
ret <<= 32;
|
|
ret |= low;
|
|
return ret;
|
|
}
|
|
|
|
static void put16le(struct buffer *input, uint16_t val)
|
|
{
|
|
put8(input, val);
|
|
put8(input, val >> 8);
|
|
}
|
|
|
|
static void put32le(struct buffer *input, uint32_t val)
|
|
{
|
|
put16le(input, val);
|
|
put16le(input, val >> 16);
|
|
}
|
|
|
|
static void put64le(struct buffer *input, uint64_t val)
|
|
{
|
|
put32le(input, val);
|
|
put32le(input, val >> 32);
|
|
}
|
|
|
|
struct xdr xdr_be = {
|
|
get16be, get32be, get64be,
|
|
put16be, put32be, put64be
|
|
};
|
|
|
|
struct xdr xdr_le = {
|
|
get16le, get32le, get64le,
|
|
put16le, put32le, put64le
|
|
};
|