1 /* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include <stdio.h> 17 #include <stdlib.h> 18 #include <errno.h> 19 #include <net/if.h> 20 #include "test.h" 21 22 /** 23 * @tc.name : if_indextoname_0100 24 * @tc.desc : Get network interface by index 25 * @tc.level : Level 0 26 */ if_indextoname_0100(void)27void if_indextoname_0100(void) 28 { 29 int saved_errno = errno; 30 char if_name[IFNAMSIZ] = {'\0'}; 31 unsigned int if_index = (unsigned int)atoi("1"); 32 33 char *name = if_indextoname(if_index, if_name); 34 if (name == NULL && errno == ENXIO) { 35 t_error("%s if_indextoname get name is NULL", __func__); 36 } 37 } 38 main(int argc,char * argv[])39int main(int argc, char *argv[]) 40 { 41 if_indextoname_0100(); 42 return t_status; 43 }