0b662d60fc
and let other function call the new internal function gethostentbyname_r Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com> Change-Id: Ic6137d6cf03f75d6ed33e23bf04ae74b7264e682
140 lines
4.8 KiB
C
140 lines
4.8 KiB
C
/****************************************************************************
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* libs/libc/net/lib_netdb.h
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* 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
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __LIBS_LIBC_NETDB_LIB_NETDB_H
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#define __LIBS_LIBC_NETDB_LIB_NETDB_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <netdb.h>
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#include <stdio.h>
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#ifdef CONFIG_LIBC_NETDB
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* This is the maximum number of alternate host names supported by this
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* implementation:
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*/
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#ifndef CONFIG_NETDB_MAX_ALTNAMES
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# define CONFIG_NETDB_MAX_ALTNAMES 4
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#endif
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/* This is the path to the system hosts file */
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#ifndef CONFIG_NETDB_HOSTCONF_PATH
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# define CONFIG_NETDB_HOSTCONF_PATH "/etc/hosts"
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#endif
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/* Size of the buffer available for host data */
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#ifndef CONFIG_NETDB_BUFSIZE
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# define CONFIG_NETDB_BUFSIZE 128
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#endif
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#ifndef CONFIG_NETDB_MAX_IPADDR
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# define CONFIG_NETDB_MAX_IPADDR 1
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#endif
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/****************************************************************************
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* Public Types
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****************************************************************************/
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struct hostent_s
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{
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FAR char *h_name; /* Official name of the host. */
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FAR char **h_aliases; /* A pointer to an array of pointers to the
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* alternative host names, terminated by a
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* null pointer. */
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FAR int *h_addrtypes; /* A pointer to an array of address type. */
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FAR int *h_lengths; /* A pointer to an array of the length, in bytes,
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* of the address. */
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FAR char **h_addr_list; /* A pointer to an array of pointers to network
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* addresses (in network byte order) for the host,
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* terminated by a null pointer. */
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};
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struct services_db_s
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{
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FAR const char *s_name;
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int s_port;
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int s_protocol;
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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EXTERN struct hostent g_hostent;
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EXTERN char g_hostbuffer[CONFIG_NETDB_BUFSIZE];
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EXTERN const struct services_db_s g_services_db[];
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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bool convert_hostent(const FAR struct hostent_s *in,
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int type, FAR struct hostent *out);
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ssize_t parse_hostfile(FAR FILE *stream, FAR struct hostent_s *host,
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FAR char *buf, size_t buflen);
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int gethostentbyname_r(FAR const char *name,
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FAR struct hostent_s *host, FAR char *buf,
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size_t buflen, FAR int *h_errnop);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* CONFIG_LIBC_NETDB */
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#endif /* __LIBS_LIBC_NETDB_LIB_NETDB_H */
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