mirror of
https://github.com/openharmony/kernel_common_modules_newip.git
synced 2026-08-26 19:50:43 -04:00
liangbotong
84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
// SPDX-License-Identifier: BSD-3-Clause
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/*
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* Copyright (c) 2022 Huawei Device Co., Ltd.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdint.h>
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#define NIP_DISABLE_PATH ("/sys/module/newip/parameters/disable")
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#define NIP_DISABLE_LENTH (5)
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#define NIP_ENABLE_INVALID (0xFF)
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int g_nip_enable = NIP_ENABLE_INVALID;
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void _check_nip_enable(void)
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{
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char tmp[NIP_DISABLE_LENTH];
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FILE *fn = fopen(NIP_DISABLE_PATH, "r");
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if (!fn) {
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printf("fail to open %s\n\n", NIP_DISABLE_PATH);
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return;
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}
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if (fgets(tmp, NIP_DISABLE_LENTH, fn) == NULL) {
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printf("fail to gets %s\n\n", NIP_DISABLE_PATH);
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fclose(fn);
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return;
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}
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fclose(fn);
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g_nip_enable = atoi(tmp) ? 0 : 1;
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}
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int check_nip_enable(void)
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{
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if (g_nip_enable == NIP_ENABLE_INVALID) {
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_check_nip_enable();
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g_nip_enable = (g_nip_enable == 1 ? 1 : 0);
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}
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return g_nip_enable;
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}
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int main(int argc, char **argv)
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{
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int af_ninet = check_nip_enable();
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if (af_ninet)
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printf("Support NewIP\n\n");
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else
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printf("Not support NewIP\n\n");
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return 0;
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}
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