87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018-05-24 ChenYong First version
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*/
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#ifndef SAL_NETDB_H__
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#define SAL_NETDB_H__
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#include <stddef.h>
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#include "sal_socket.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define EAI_NONAME 200
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#define EAI_SERVICE 201
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#define EAI_FAIL 202
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#define EAI_MEMORY 203
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#define EAI_FAMILY 204
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#define HOST_NOT_FOUND 210
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#define NO_DATA 211
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#define NO_RECOVERY 212
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#define TRY_AGAIN 213
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#define AI_PASSIVE 0x01
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#define AI_CANONNAME 0x02
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#define AI_NUMERICHOST 0x04
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#define AI_NUMERICSERV 0x08
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#define AI_V4MAPPED 0x10
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#define AI_ALL 0x20
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#define AI_ADDRCONFIG 0x40
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/* input flags for structure addrinfo */
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#define AI_PASSIVE 0x01
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#define AI_CANONNAME 0x02
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#define AI_NUMERICHOST 0x04
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#define AI_NUMERICSERV 0x08
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#define AI_V4MAPPED 0x10
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#define AI_ALL 0x20
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#define AI_ADDRCONFIG 0x40
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#define DNS_MAX_NAME_LENGTH 256
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struct hostent {
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char *h_name; /* Official name of the host. */
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char **h_aliases; /* A pointer to an array of pointers to alternative host names,
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terminated by a null pointer. */
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int h_addrtype; /* Address type. */
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int h_length; /* The length, in bytes, of the address. */
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char **h_addr_list; /* A pointer to an array of pointers to network addresses (in
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network byte order) for the host, terminated by a null pointer. */
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#define h_addr h_addr_list[0] /* for backward compatibility */
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};
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struct addrinfo {
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int ai_flags; /* Input flags. */
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int ai_family; /* Address family of socket. */
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int ai_socktype; /* Socket type. */
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int ai_protocol; /* Protocol of socket. */
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socklen_t ai_addrlen; /* Length of socket address. */
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struct sockaddr *ai_addr; /* Socket address of socket. */
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char *ai_canonname; /* Canonical name of service location. */
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struct addrinfo *ai_next; /* Pointer to next in list. */
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};
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struct hostent *sal_gethostbyname(const char *name);
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int sal_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
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size_t buflen, struct hostent **result, int *h_errnop);
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void sal_freeaddrinfo(struct addrinfo *ai);
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int sal_getaddrinfo(const char *nodename,
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const char *servname,
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const struct addrinfo *hints,
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struct addrinfo **res);
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#ifdef __cplusplus
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}
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#endif
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#endif /* SAL_NETDB_H__ */
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