mirror of
https://github.com/openharmony/startup_init_lite.git
synced 2026-07-23 13:35:22 -04:00
sun_fan
56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <string.h>
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#include <stdio.h>
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#include "sys_param.h"
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#define HELP_PARAM "--help"
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#define BUFFER_SIZE 256
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static void ProcessParam(ParamHandle handle, void* cookie)
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{
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SystemGetParameterName(handle, (char*)cookie, BUFFER_SIZE);
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u_int32_t size = BUFFER_SIZE;
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SystemGetParameterValue(handle, ((char*)cookie) + BUFFER_SIZE, &size);
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printf("\t%s = %s \n", (char*)cookie, ((char*)cookie) + BUFFER_SIZE);
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}
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int main(int argc, char* argv[])
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{
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if (argc == 1) { // 显示所有的记录
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char value[BUFFER_SIZE + BUFFER_SIZE] = {0};
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SystemTraversalParameter(ProcessParam, (void*)value);
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return 0;
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}
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if (argc == 2 && strncmp(argv[1], HELP_PARAM, strlen(HELP_PARAM)) == 0) { // 显示帮助
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printf("usage: getparam NAME VALUE\n");
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return 0;
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}
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if (argc != 2) {
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printf("usage: getparam NAME VALUE\n");
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return 0;
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}
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char value[BUFFER_SIZE] = {0};
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u_int32_t size = BUFFER_SIZE;
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int ret = SystemGetParameter(argv[1], value, &size);
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if (ret == 0) {
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printf("%s \n", value);
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} else {
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printf("getparam %s %s fail\n", argv[1], value);
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}
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}
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