mirror of
https://github.com/openharmony/kernel_common_modules_newip.git
synced 2026-08-26 19:50:43 -04:00
liangbotong
76 lines
2.3 KiB
C
76 lines
2.3 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 AF_NINET_PATH ("/sys/module/newip/parameters/af_ninet")
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#define AF_NINET_LENTH (5)
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int g_af_ninet;
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void _get_af_ninet(void)
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{
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char tmp[AF_NINET_LENTH];
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FILE *fn = fopen(AF_NINET_PATH, "r");
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if (!fn) {
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printf("fail to open %s\n\n", AF_NINET_PATH);
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return;
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}
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if (fgets(tmp, AF_NINET_LENTH, fn) == NULL) {
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printf("fail to gets %s\n\n", AF_NINET_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_af_ninet = atoi(tmp);
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}
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int get_af_ninet(void)
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{
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if (g_af_ninet == 0)
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_get_af_ninet();
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return g_af_ninet;
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}
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int main(int argc, char **argv)
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{
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printf("af_ninet=%d\n\n", get_af_ninet());
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return 0;
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}
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