1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include "lwip/netdb.h"
33
34 #if LWIP_DNS && LWIP_SOCKET
35
gethostbyname(const char * name)36 struct hostent *gethostbyname(const char *name)
37 {
38 if (name == NULL) {
39 return NULL;
40 }
41 return lwip_gethostbyname(name);
42 }
43
gethostbyname_r(const char * name,struct hostent * ret,char * buf,size_t buflen,struct hostent ** result,int * h_errnop)44 int gethostbyname_r(const char *name, struct hostent *ret, char *buf, size_t buflen, struct hostent **result,
45 int *h_errnop)
46 {
47 return lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop);
48 }
49
freeaddrinfo(struct addrinfo * res)50 void freeaddrinfo(struct addrinfo *res)
51 {
52 lwip_freeaddrinfo(res);
53 }
54
getaddrinfo(const char * restrict nodename,const char * restrict servname,const struct addrinfo * restrict hints,struct addrinfo ** restrict res)55 int getaddrinfo(const char *restrict nodename, const char *restrict servname, const struct addrinfo *restrict hints,
56 struct addrinfo **restrict res)
57 {
58 return lwip_getaddrinfo(nodename, servname, hints, res);
59 }
60
61 #endif