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/* SPDX-License-Identifier: GPL-2.0-only */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <stdint.h>
#include "common.h"
size_t bgets(struct buffer *input, void *output, size_t len)
{
len = input->size < len ? input->size : len;
memmove(output, input->data, len);
input->data += len;
input->size -= len;
return len;
}
size_t bputs(struct buffer *b, const void *data, size_t len)
{
memmove(&b->data[b->size], data, len);
b->size += len;
return len;
}
/* 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 = {
get8, get16be, get32be, get64be,
put8, put16be, put32be, put64be
};
struct xdr xdr_le = {
get8, get16le, get32le, get64le,
put8, put16le, put32le, put64le
};
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