/**************************************************************************** * libs/libc/netdb/lib_netdb.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ #ifndef __LIBS_LIBC_NETDB_LIB_NETDB_H #define __LIBS_LIBC_NETDB_LIB_NETDB_H /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #ifdef CONFIG_LIBC_NETDB /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* This is the maximum number of alternate host names supported by this * implementation: */ #ifndef CONFIG_NETDB_MAX_ALTNAMES # define CONFIG_NETDB_MAX_ALTNAMES 4 #endif /* This is the path to the system hosts file */ #ifndef CONFIG_NETDB_HOSTCONF_PATH # define CONFIG_NETDB_HOSTCONF_PATH "/etc/hosts" #endif /* Size of the buffer available for host data */ #ifndef CONFIG_NETDB_BUFSIZE # define CONFIG_NETDB_BUFSIZE 128 #endif #ifndef CONFIG_NETDB_MAX_IPADDR # define CONFIG_NETDB_MAX_IPADDR 1 #endif /**************************************************************************** * Public Types ****************************************************************************/ struct hostent_s { FAR char *h_name; /* Official name of the host. */ FAR char **h_aliases; /* A pointer to an array of pointers to the * alternative host names, terminated by a * null pointer. */ FAR int *h_addrtypes; /* A pointer to an array of address type. */ FAR int *h_lengths; /* A pointer to an array of the length, in bytes, * of the address. */ FAR char **h_addr_list; /* A pointer to an array of pointers to network * addresses (in network byte order) for the host, * terminated by a null pointer. */ }; struct services_db_s { FAR const char *s_name; int s_port; int s_protocol; }; /**************************************************************************** * Public Data ****************************************************************************/ #ifdef __cplusplus #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif EXTERN struct hostent g_hostent; EXTERN char g_hostbuffer[CONFIG_NETDB_BUFSIZE]; EXTERN const struct services_db_s g_services_db[]; /**************************************************************************** * Public Function Prototypes ****************************************************************************/ bool convert_hostent(FAR const struct hostent_s *in, int type, FAR struct hostent *out); ssize_t parse_hostfile(FAR FILE *stream, FAR struct hostent_s *host, FAR char *buf, size_t buflen); int gethostentbyname_r(FAR const char *name, FAR struct hostent_s *host, FAR char *buf, size_t buflen, FAR int *h_errnop); #undef EXTERN #ifdef __cplusplus } #endif #endif /* CONFIG_LIBC_NETDB */ #endif /* __LIBS_LIBC_NETDB_LIB_NETDB_H */