/*

 * Copyright (C) 2022 Huawei Device Co., Ltd.

 * Licensed 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 <stdbool.h>

#include "endian_internal.h"



#define B_L_SWAP16(A)  ((((uint16_t)(A) & 0xff00) >> 8) | (((uint16_t)(A) & 0x00ff) << 8))

#define B_L_SWAP32(A)  ((((uint32_t)(A) & 0xff000000) >> 24) | (((uint32_t)(A) & 0x00ff0000) >> 8) | \

    (((uint32_t)(A) & 0x0000ff00) << 8) | (((uint32_t)(A) & 0x000000ff) << 24))



static bool CheckEndian(void);



static bool CheckEndian(void)

{

    union {

        int32_t i;

        uint8_t s[4];

    } c;

    c.i = 0x12345678;



    return (c.s[0] == 0x12);

}



uint32_t HtonlInter(uint32_t h)

{

    return CheckEndian() ? h : B_L_SWAP32(h);

}



uint32_t NtohlInter(uint32_t n)

{

    return CheckEndian() ? n : B_L_SWAP32(n);

}



uint16_t HtonsInter(uint16_t h)

{

    return CheckEndian() ? h : B_L_SWAP16(h);

}



uint16_t NtohsInter(uint16_t n)

{

    return CheckEndian() ? n : B_L_SWAP16(n);

}