| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #include "os/endian.h" |
| |
| void |
| put_le16(void *buf, uint16_t x) |
| { |
| uint8_t *u8ptr; |
| |
| u8ptr = buf; |
| u8ptr[0] = (uint8_t)x; |
| u8ptr[1] = (uint8_t)(x >> 8); |
| } |
| |
| void |
| put_le24(void *buf, uint32_t x) |
| { |
| uint8_t *u8ptr; |
| |
| u8ptr = buf; |
| u8ptr[0] = (uint8_t)x; |
| u8ptr[1] = (uint8_t)(x >> 8); |
| u8ptr[2] = (uint8_t)(x >> 16); |
| } |
| |
| void |
| put_le32(void *buf, uint32_t x) |
| { |
| uint8_t *u8ptr; |
| |
| u8ptr = buf; |
| u8ptr[0] = (uint8_t)x; |
| u8ptr[1] = (uint8_t)(x >> 8); |
| u8ptr[2] = (uint8_t)(x >> 16); |
| u8ptr[3] = (uint8_t)(x >> 24); |
| } |
| |
| void |
| put_le64(void *buf, uint64_t x) |
| { |
| uint8_t *u8ptr; |
| |
| u8ptr = buf; |
| u8ptr[0] = (uint8_t)x; |
| u8ptr[1] = (uint8_t)(x >> 8); |
| u8ptr[2] = (uint8_t)(x >> 16); |
| u8ptr[3] = (uint8_t)(x >> 24); |
| u8ptr[4] = (uint8_t)(x >> 32); |
| u8ptr[5] = (uint8_t)(x >> 40); |
| u8ptr[6] = (uint8_t)(x >> 48); |
| u8ptr[7] = (uint8_t)(x >> 56); |
| } |
| |
| uint16_t |
| get_le16(const void *buf) |
| { |
| const uint8_t *u8ptr; |
| uint16_t x; |
| |
| u8ptr = buf; |
| x = u8ptr[0]; |
| x |= (uint16_t)u8ptr[1] << 8; |
| |
| return x; |
| } |
| |
| uint32_t |
| get_le24(const void *buf) |
| { |
| const uint8_t *u8ptr; |
| uint32_t x; |
| |
| u8ptr = buf; |
| x = u8ptr[0]; |
| x |= (uint32_t)u8ptr[1] << 8; |
| x |= (uint32_t)u8ptr[2] << 16; |
| |
| return x; |
| } |
| |
| uint32_t |
| get_le32(const void *buf) |
| { |
| const uint8_t *u8ptr; |
| uint32_t x; |
| |
| u8ptr = buf; |
| x = u8ptr[0]; |
| x |= (uint32_t)u8ptr[1] << 8; |
| x |= (uint32_t)u8ptr[2] << 16; |
| x |= (uint32_t)u8ptr[3] << 24; |
| |
| return x; |
| } |
| |
| uint64_t |
| get_le64(const void *buf) |
| { |
| const uint8_t *u8ptr; |
| uint64_t x; |
| |
| u8ptr = buf; |
| x = u8ptr[0]; |
| x |= (uint64_t)u8ptr[1] << 8; |
| x |= (uint64_t)u8ptr[2] << 16; |
| x |= (uint64_t)u8ptr[3] << 24; |
| x |= (uint64_t)u8ptr[4] << 32; |
| x |= (uint64_t)u8ptr[5] << 40; |
| x |= (uint64_t)u8ptr[6] << 48; |
| x |= (uint64_t)u8ptr[7] << 56; |
| |
| return x; |
| } |
| |
| void |
| put_be16(void *buf, uint16_t x) |
| { |
| uint8_t *u8ptr; |
| |
| u8ptr = buf; |
| u8ptr[0] = (uint8_t)(x >> 8); |
| u8ptr[1] = (uint8_t)x; |
| } |
| |
| void |
| put_be24(void *buf, uint32_t x) |
| { |
| uint8_t *u8ptr; |
| |
| u8ptr = buf; |
| u8ptr[0] = (uint8_t)(x >> 16); |
| u8ptr[1] = (uint8_t)(x >> 8); |
| u8ptr[2] = (uint8_t)x; |
| } |
| |
| void |
| put_be32(void *buf, uint32_t x) |
| { |
| uint8_t *u8ptr; |
| |
| u8ptr = buf; |
| u8ptr[0] = (uint8_t)(x >> 24); |
| u8ptr[1] = (uint8_t)(x >> 16); |
| u8ptr[2] = (uint8_t)(x >> 8); |
| u8ptr[3] = (uint8_t)x; |
| } |
| |
| void |
| put_be64(void *buf, uint64_t x) |
| { |
| uint8_t *u8ptr; |
| |
| u8ptr = buf; |
| u8ptr[0] = (uint8_t)(x >> 56); |
| u8ptr[1] = (uint8_t)(x >> 48); |
| u8ptr[2] = (uint8_t)(x >> 40); |
| u8ptr[3] = (uint8_t)(x >> 32); |
| u8ptr[4] = (uint8_t)(x >> 24); |
| u8ptr[5] = (uint8_t)(x >> 16); |
| u8ptr[6] = (uint8_t)(x >> 8); |
| u8ptr[7] = (uint8_t)x; |
| } |
| |
| uint16_t |
| get_be16(const void *buf) |
| { |
| const uint8_t *u8ptr; |
| uint16_t x; |
| |
| u8ptr = buf; |
| x = (uint16_t)u8ptr[0] << 8; |
| x |= u8ptr[1]; |
| |
| return x; |
| } |
| |
| uint32_t |
| get_be24(const void *buf) |
| { |
| const uint8_t *u8ptr; |
| uint32_t x; |
| |
| u8ptr = buf; |
| x = (uint32_t)u8ptr[0] << 16; |
| x |= (uint32_t)u8ptr[1] << 8; |
| x |= (uint32_t)u8ptr[2]; |
| |
| return x; |
| } |
| |
| uint32_t |
| get_be32(const void *buf) |
| { |
| const uint8_t *u8ptr; |
| uint32_t x; |
| |
| u8ptr = buf; |
| x = (uint32_t)u8ptr[0] << 24; |
| x |= (uint32_t)u8ptr[1] << 16; |
| x |= (uint32_t)u8ptr[2] << 8; |
| x |= u8ptr[3]; |
| |
| return x; |
| } |
| |
| uint64_t |
| get_be64(const void *buf) |
| { |
| const uint8_t *u8ptr; |
| uint64_t x; |
| |
| u8ptr = buf; |
| x = (uint64_t)u8ptr[0] << 56; |
| x |= (uint64_t)u8ptr[1] << 48; |
| x |= (uint64_t)u8ptr[2] << 40; |
| x |= (uint64_t)u8ptr[3] << 32; |
| x |= (uint64_t)u8ptr[4] << 24; |
| x |= (uint64_t)u8ptr[5] << 16; |
| x |= (uint64_t)u8ptr[6] << 8; |
| x |= u8ptr[7]; |
| |
| return x; |
| } |
| void |
| swap_in_place(void *buf, int len) |
| { |
| uint8_t *u8ptr; |
| uint8_t tmp; |
| int i; |
| int j; |
| |
| u8ptr = buf; |
| |
| for (i = 0, j = len - 1; i < j; i++, j--) { |
| tmp = u8ptr[i]; |
| |
| u8ptr[i] = u8ptr[j]; |
| u8ptr[j] = tmp; |
| } |
| } |
| |
| /* swap octets */ |
| void |
| swap_buf(uint8_t *dst, const uint8_t *src, int len) |
| { |
| int i; |
| |
| for (i = 0; i < len; i++) { |
| dst[len - 1 - i] = src[i]; |
| } |
| } |