+
+/****f* silcutil/SilcNetAPI/silc_net_get_socket_opt
+ *
+ * SYNOPSIS
+ *
+ * int silc_net_get_socket_opt(int sock, int level, int option,
+ * void *optval, int *opt_len);
+ *
+ * DESCRIPTION
+ *
+ * Return socket options to the `optval' and `opt_len'.
+ *
+ ***/
+int silc_net_get_socket_opt(int sock, int level, int option,
+ void *optval, int *opt_len);
+
+/****f* silcutil/SilcNetAPI/silc_net_is_ip4
+ *
+ * SYNOPSIS
+ *
+ * bool silc_net_is_ip4(const char *addr);
+ *
+ * DESCRIPTION
+ *
+ * Checks whether IP address sent as argument is valid IPv4 address.
+ *
+ ***/
+bool silc_net_is_ip4(const char *addr);
+
+/****f* silcutil/SilcNetAPI/silc_net_is_ip6
+ *
+ * SYNOPSIS
+ *
+ * bool silc_net_is_ip6(const char *addr);
+ *
+ * DESCRIPTION
+ *
+ * Checks whether IP address sent as argument is valid IPv6 address.
+ *
+ ***/
+bool silc_net_is_ip6(const char *addr);
+
+/****f* silcutil/SilcNetAPI/silc_net_is_ip
+ *
+ * SYNOPSIS
+ *
+ * bool silc_net_is_ip(const char *addr);
+ *
+ * DESCRIPTION
+ *
+ * Checks whether IP address sent as argument is valid IP address.
+ * This supports both IPv4 and IPv6 addresses.
+ *
+ ***/
+bool silc_net_is_ip(const char *addr);
+
+/****f* silcutil/SilcNetAPI/silc_net_addr2bin
+ *
+ * SYNOPSIS
+ *
+ * bool silc_net_addr2bin(const char *addr, void *bin, SilcUInt32 bin_len);
+ *
+ * DESCRIPTION
+ *
+ * Converts the IP number string from numbers-and-dots notation to
+ * binary form in network byte order. The address can be either
+ * IPv4 or IPv6 address.
+ *
+ ***/
+bool silc_net_addr2bin(const char *addr, void *bin, SilcUInt32 bin_len);
+
+/****f* silcutil/SilcNetAPI/SilcNetResolveCallback
+ *
+ * SYNOPSIS
+ *
+ * typedef void (*SilcNetResolveCallback)(const char *result,
+ * void *context);
+ *
+ * DESCRIPTION
+ *
+ * A callback function of this type is called after the asynchronous
+ * resolving operation has been completed. This callback is used
+ * when asynchronously resolving IP addresses and hostnames.
+ *
+ ***/
+typedef void (*SilcNetResolveCallback)(const char *result, void *context);
+
+/****f* silcutil/SilcNetAPI/silc_net_gethostbyname
+ *
+ * SYNOPSIS
+ *
+ * bool silc_net_gethostbyname(const char *name, bool prefer_ipv6,
+ * char *address, SilcUInt32 address_len);
+ *
+ * DESCRIPTION
+ *
+ * Resolves the IP address of the hostname indicated by the `name'.
+ * This returns TRUE and the IP address of the host to the `address'
+ * buffer, or FALSE if the address could not be resolved. This is
+ * synchronous function and will block the calling process. If the
+ * `prefer_ipv6' is TRUE then this will return IPv6 address if it
+ * finds. If FALSE if returns IPv4 address even if it found IPv6
+ * address also.
+ *
+ ***/
+bool silc_net_gethostbyname(const char *name, bool prefer_ipv6, char *address,
+ SilcUInt32 address_len);
+
+/****f* silcutil/SilcNetAPI/silc_net_gethostbyname_async
+ *
+ * SYNOPSIS
+ *
+ * void silc_net_gethostbyname_async(const char *name,
+ * bool prefer_ipv6,
+ * SilcSchedule schedule,
+ * SilcNetResolveCallback completion,
+ * void *context)
+ *
+ * DESCRIPTION
+ *
+ * Asynchronously resolves the IP address of the hostname indicated
+ * by the `name'. This function returns immediately, and the
+ * `completion' callback will be called after the resolving is
+ * completed.
+ *
+ * If the `prefer_ipv6' is TRUE then this will return IPv6 address if it
+ * finds. If FALSE if returns IPv4 address even if it found IPv6
+ * address also.
+ *
+ ***/
+void silc_net_gethostbyname_async(const char *name,
+ bool prefer_ipv6,
+ SilcSchedule schedule,
+ SilcNetResolveCallback completion,
+ void *context);
+
+/****f* silcutil/SilcNetAPI/silc_net_gethostbyaddr
+ *
+ * SYNOPSIS
+ *
+ * bool silc_net_gethostbyaddr(const char *addr, char *name,
+ * SilcUInt32 name_len);
+ *
+ * DESCRIPTION
+ *
+ * Resolves the hostname for the IP address indicated by the `addr'
+ * This returns TRUE and the resolved hostname to the `name' buffer,
+ * or FALSE on error. The `addr' may be either IPv4 or IPv6 address.
+ * This is synchronous function and will block the calling process.
+ *
+ ***/
+bool silc_net_gethostbyaddr(const char *addr, char *name, SilcUInt32 name_len);
+
+/****f* silcutil/SilcNetAPI/silc_net_gethostbyaddr_async
+ *
+ * SYNOPSIS
+ *
+ * void silc_net_gethostbyaddr_async(const char *addr,
+ * SilcSchedule schedule,
+ * SilcNetResolveCallback completion,
+ * void *context)
+ *
+ * DESCRIPTION
+ *
+ * Asynchronously resolves the hostname for the IP address indicated
+ * by the `addr'. This function returns immediately, and the
+ * `completion' callback will be called after the resolving is
+ * completed.
+ *
+ ***/
+void silc_net_gethostbyaddr_async(const char *addr,
+ SilcSchedule schedule,
+ SilcNetResolveCallback completion,
+ void *context);
+
+/****f* silcutil/SilcNetAPI/silc_net_check_host_by_sock
+ *
+ * SYNOPSIS
+ *
+ * bool silc_net_check_host_by_sock(int sock, char **hostname, char **ip);
+ *
+ * DESCRIPTION
+ *
+ * Performs lookups for remote name and IP address. This peforms reverse
+ * lookup as well to verify that the IP has FQDN.
+ *
+ ***/
+bool silc_net_check_host_by_sock(int sock, char **hostname, char **ip);
+
+/****f* silcutil/SilcNetAPI/silc_net_check_local_by_sock
+ *
+ * SYNOPSIS
+ *
+ * bool silc_net_check_local_by_sock(int sock, char **hostname, char **ip);
+ *
+ * DESCRIPTION
+ *
+ * Performs lookups for local name and IP address. This peforms reverse
+ * lookup as well to verify that the IP has FQDN.
+ *
+ ***/
+bool silc_net_check_local_by_sock(int sock, char **hostname, char **ip);
+
+/****f* silcutil/SilcNetAPI/silc_net_get_remote_port
+ *
+ * SYNOPSIS
+ *
+ * SilcUInt16 silc_net_get_remote_port(int sock);
+ *
+ * DESCRIPTION
+ *
+ * Return remote port by socket.
+ *
+ ***/
+SilcUInt16 silc_net_get_remote_port(int sock);
+
+/****f* silcutil/SilcNetAPI/silc_net_get_local_port
+ *
+ * SYNOPSIS
+ *
+ * SilcUInt16 silc_net_get_local_port(int sock);
+ *
+ * DESCRIPTION
+ *
+ * Return local port by socket.
+ *
+ ***/
+SilcUInt16 silc_net_get_local_port(int sock);
+
+/****f* silcutil/SilcNetAPI/silc_net_localhost
+ *
+ * SYNOPSIS
+ *
+ * char *silc_net_localhost(void);
+ *
+ * DESCRIPTION
+ *
+ * Return name of localhost. This will also attempt to resolve
+ * the real hostname by the local host's IP address. If unsuccessful
+ * the first found hostname is returned. The caller must free
+ * returned hostname.
+ *
+ ***/
+char *silc_net_localhost(void);
+
+/****f* silcutil/SilcNetAPI/silc_net_localip
+ *
+ * SYNOPSIS
+ *
+ * char *silc_net_localip(void)
+ *
+ * DESCRIPTION
+ *
+ * Return IP of localhost. The caller must free the returned IP.
+ *
+ ***/
+char *silc_net_localip(void);
+
+/****f* silcutil/SilcNetAPI/silc_net_win32_init
+ *
+ * SYNOPSIS
+ *
+ * bool silc_net_win32_init(void);
+ *
+ * DESCRIPTION
+ *
+ * This is WIN32 system specific function and is used to initialize
+ * the network. This must be called by all WIN32 applications. It
+ * is usually called at the application's main() or WinMain() before
+ * calling any other SILC routine. The application must also call
+ * the silc_net_win32_uninit when exiting the application. Returns
+ * FALSE on error. The network will not work if this function returns
+ * FALSE.
+ *
+ * NOTES
+ *
+ * This routines is available only on Win32 platform.
+ *
+ ***/
+bool silc_net_win32_init(void);
+
+/****f* silcutil/SilcNetAPI/silc_net_win32_uninit
+ *
+ * SYNOPSIS
+ *
+ * void silc_net_win32_init(void);
+ *
+ * DESCRIPTION
+ *
+ * This is WIN32 system specific function and is used to uninitialize
+ * the network. This must be called by all WIN32 applications. It
+ * is usually called when the application is exiting. After calling
+ * this function the SILC Net API routines will not work anymore.
+ *
+ * NOTES
+ *
+ * This routines is available only on Win32 platform.
+ *
+ ***/
+void silc_net_win32_uninit(void);