Author: Pekka Riikonen <priikone@silcnet.org>
- Copyright (C) 1997 - 2006 Pekka Riikonen
+ Copyright (C) 1997 - 2007 Pekka Riikonen
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*
* This function creates TCP listener. This is used to create network
* listener for incoming connections, and `callback' will be called
- * everytime new connection is received. If `local_ip_addr' is NULL any
+ * everytime new connection is received. If `local_ip_addr' is NULL 'any'
* address is used. If provided it can be used bind the listener to
* `local_ip_count' many IP addresses provided in `local_ip_addr' table.
* On success returns the SilcNetListener context, or NULL on error.
* If `require_fqdn' is TRUE the listener will require that the incoming
* connection has FQDN to be able to connect. If the `lookup' is TRUE
- * then the incoming connection hostname will be resolved.
+ * then the incoming connection hostname will be resolved. If the `port'
+ * is zero (0), operating system will define it automatically.
+ *
+ * The `callback' always delivers valid new stream. It is not called
+ * with an error status.
*
***/
SilcNetListener
SilcSchedule schedule,
SilcNetCallback callback, void *context);
+/****f* silcutil/SilcNetAPI/silc_net_listener_get_port
+ *
+ * SYNOPSIS
+ *
+ * SilcUInt16 silc_net_listener_get_port(SilcNetListener listener);
+ *
+ * DESCRIPTION
+ *
+ * Returns the ports to where the `listener' is bound. This can be used
+ * to get the port if none was specified in silc_net_tcp_create_listener.
+ * Returns an array of ports of size of `port_count'. The caller must
+ * free the array with silc_free. There are as many ports in the array
+ * as there were IP addresses provided in silc_net_tcp_create_listener.
+ *
+ ***/
+SilcUInt16 *silc_net_listener_get_port(SilcNetListener listener,
+ SilcUInt32 *port_count);
+
+/****f* silcutil/SilcNetAPI/silc_net_listener_get_ip
+ *
+ * SYNOPSIS
+ *
+ * char **silc_net_listener_get_ip(SilcNetListener listener,
+ * SilcUInt32 *ip_count);
+ *
+ * DESCRIPTION
+ *
+ * Returns the IP's to where the `listener' is bound. Returns an array
+ * of IP addresses of size of `port_count'. The caller must free the
+ * array and its strings with silc_free.
+ *
+ ***/
+char **silc_net_listener_get_ip(SilcNetListener listener,
+ SilcUInt32 *ip_count);
+
+/****f* silcutil/SilcNetAPI/silc_net_listener_get_hostname
+ *
+ * SYNOPSIS
+ *
+ * char **silc_net_listener_get_hostname(SilcNetListener listener,
+ * SilcUInt32 *hostname_count);
+ *
+ * DESCRIPTION
+ *
+ * Returns the hostnames to where the `listener' is bound. Returns an
+ * array of hostnames of size of `port_count'. The caller must free the
+ * array and its strings with silc_free.
+ *
+ ***/
+char **silc_net_listener_get_hostname(SilcNetListener listener,
+ SilcUInt32 *hostname_count);
+
/****f* silcutil/SilcNetAPI/silc_net_close_listener
*
* SYNOPSIS
* asynchronous call, and this function returns before the connection is
* actually established. The `callback' will be called after the
* connection is created to deliver the SilcStream for the created
- * connection.
+ * connection. This function supports IPv6 if the platform supports it.
*
* The returned SilcAsyncOperation context can be used to control the
* asynchronous connecting, such as to abort it. If it is aborted
* using silc_async_abort the `callback' will not be called. If NULL
* is returned the operation cannot be aborted.
*
- */
+ ***/
SilcAsyncOperation silc_net_tcp_connect(const char *local_ip_addr,
const char *remote_ip_addr,
int remote_port,
* silc_stream_write function and packets may be received using
* silc_stream_read function.
*
- * If the remote address is not provided then packets may only be received
- * by using silc_net_udp_receive and sent only by using the function
+ * If the remote address is not provided the stream is in connectionless
+ * state. This means that packets can be received only by using
+ * silc_net_udp_receive and sent only by using the function
* silc_net_udp_send.
*
* To receive packets the silc_stream_set_notifier must be called for the
* To read the packet use silc_stream_read if the remote address was
* provided, and silc_net_udp_receive if it was not.
*
+ * Supports IPv6 if the platform supports it.
+ *
* EXAMPLE
*
* SilcStream udpstream;
* // Send packet to remote host
* silc_stream_write(udpstream, data, data_len);
*
+ * Create UDP listener:
+ *
+ * udpstream = silc_net_udp_connect("0.0.0.0", 500, NULL, 0, schedule);
+ * silc_stream_set_notifier(udpstream, schedule, receive_callback, context);
+ *
***/
SilcStream silc_net_udp_connect(const char *local_ip_addr, int local_port,
const char *remote_ip_addr, int remote_port,
*
* SYNOPSIS
*
- * void silc_net_udp_send(SilcStream stream,
- * const char *remote_ip_addr, int remote_port,
- * const unsigned char *data, SilcUInt32 data_len);
+ * int silc_net_udp_send(SilcStream stream,
+ * const char *remote_ip_addr, int remote_port,
+ * const unsigned char *data, SilcUInt32 data_len);
*
* DESCRIPTION
*
* used. In those cases, this function must be used. This may also be
* used even if the stream is connected.
*
- * This function always succeeds, however there is no guarantee that the
- * packet is delivered, as UDP is unreliable transport protocol.
+ * Returns the amount of data written, -1 if data could not be written
+ * at this moment, or -2 if error occurred. If -1 is returned the
+ * notifier callback will later be called with SILC_STREAM_CAN_WRITE
+ * status when stream is again ready for writing.
*
***/
-void silc_net_udp_send(SilcStream stream,
- const char *remote_ip_addr, int remote_port,
- const unsigned char *data, SilcUInt32 data_len);
+int silc_net_udp_send(SilcStream stream,
+ const char *remote_ip_addr, int remote_port,
+ const unsigned char *data, SilcUInt32 data_len);
-/****f* silcutil/SilcNetAPI/silc_net_close_connection
+/****f* silcutil/SilcNetAPI/silc_net_get_error_string
*
* SYNOPSIS
*
- * void silc_net_close_connection(int sock);
+ * const char silc_net_get_error_string(SilcNetStatus error);
*
* DESCRIPTION
*
- * Closes the connection by closing the socket connection.
+ * Return `error' as a string.
*
***/
-void silc_net_close_connection(int sock);
+const char *silc_net_get_error_string(SilcNetStatus error);
-/****f* silcutil/SilcNetAPI/silc_net_accept_connection
+/****f* silcutil/SilcNetAPI/silc_net_close_connection
*
* SYNOPSIS
*
- * int silc_net_accept_connection(int sock);
+ * void silc_net_close_connection(int sock);
*
* DESCRIPTION
*
- * Accepts a connection from a particular socket.
+ * Closes the connection by closing the socket connection. This routine
+ * can only be used with POSIX compliant systems.
*
***/
-int silc_net_accept_connection(int sock);
+void silc_net_close_connection(int sock);
-/****f* silcutil/SilcNetAPI/silc_net_set_socket_nonblock
+/****f* silcutil/SilcNetAPI/silc_net_accept_connection
*
* SYNOPSIS
*
- * int silc_net_set_socket_nonblock(int sock);
+ * int silc_net_accept_connection(int sock);
*
* DESCRIPTION
*
- * Sets the socket to non-blocking mode.
+ * Accepts a connection from a particular socket. This routine can only
+ * be used with POSIX compliant systems. This call is equivalent to
+ * accept(2).
*
***/
-int silc_net_set_socket_nonblock(int sock);
+int silc_net_accept_connection(int sock);
/****f* silcutil/SilcNetAPI/silc_net_set_socket_opt
*
*
* Sets a option for a socket. This function can be used to set
* various options for the socket. Some of the options might be
- * system specific.
+ * system specific. This routine can only be used with POSIX compliant
+ * systems. This call is equivalent to setsockopt(2);
*
***/
int silc_net_set_socket_opt(int sock, int level, int option, int on);
*
* DESCRIPTION
*
- * Return socket options to the `optval' and `opt_len'.
+ * Return socket options to the `optval' and `opt_len'. This routine
+ * can only be used with POSIX compliant systems. This call is
+ * equivalent to getsockopt(2).
*
***/
int silc_net_get_socket_opt(int sock, int level, int option,
void *optval, int *opt_len);
+/****f* silcutil/SilcNetAPI/silc_net_set_socket_nonblock
+ *
+ * SYNOPSIS
+ *
+ * int silc_net_set_socket_nonblock(SilcSocket sock);
+ *
+ * DESCRIPTION
+ *
+ * Sets the socket `sock' to non-blocking mode.
+ *
+ ***/
+int silc_net_set_socket_nonblock(SilcSocket sock);
+
/****f* silcutil/SilcNetAPI/silc_net_is_ip4
*
* SYNOPSIS
*
* SYNOPSIS
*
- * SilcBool silc_net_addr2bin(const char *addr, void *bin, SilcUInt32 bin_len);
+ * SilcBool silc_net_addr2bin(const char *addr, void *bin,
+ * SilcUInt32 bin_len);
*
* DESCRIPTION
*
* SYNOPSIS
*
* SilcBool silc_net_gethostbyname(const char *name, SilcBool prefer_ipv6,
- * char *address, SilcUInt32 address_len);
+ * char *address, SilcUInt32 address_len);
*
* DESCRIPTION
*
* SYNOPSIS
*
* SilcBool silc_net_gethostbyaddr(const char *addr, char *name,
- * SilcUInt32 name_len);
+ * SilcUInt32 name_len);
*
- * DESCRIPTION
+x * DESCRIPTION
*
* Resolves the hostname for the IP address indicated by the `addr'
* This returns TRUE and the resolved hostname to the `name' buffer,
*
* SYNOPSIS
*
- * SilcBool silc_net_check_host_by_sock(int sock, char **hostname,
+ * SilcBool silc_net_check_host_by_sock(SilcSocket sock, char **hostname,
* char **ip);
*
* DESCRIPTION
* lookup as well to verify that the IP has FQDN.
*
***/
-SilcBool silc_net_check_host_by_sock(int sock, char **hostname, char **ip);
+SilcBool silc_net_check_host_by_sock(SilcSocket sock, char **hostname,
+ char **ip);
/****f* silcutil/SilcNetAPI/silc_net_check_local_by_sock
*
* SYNOPSIS
*
- * SilcBool silc_net_check_local_by_sock(int sock, char **hostname,
+ * SilcBool silc_net_check_local_by_sock(SilcSocket sock, char **hostname,
* char **ip);
*
* DESCRIPTION
* lookup as well to verify that the IP has FQDN.
*
***/
-SilcBool silc_net_check_local_by_sock(int sock, char **hostname, char **ip);
+SilcBool silc_net_check_local_by_sock(SilcSocket sock, char **hostname,
+ char **ip);
/****f* silcutil/SilcNetAPI/silc_net_get_remote_port
*
* SYNOPSIS
*
- * SilcUInt16 silc_net_get_remote_port(int sock);
+ * SilcUInt16 silc_net_get_remote_port(SilcSocket sock);
*
* DESCRIPTION
*
* Return remote port by socket.
*
***/
-SilcUInt16 silc_net_get_remote_port(int sock);
+SilcUInt16 silc_net_get_remote_port(SilcSocket sock);
/****f* silcutil/SilcNetAPI/silc_net_get_local_port
*
* SYNOPSIS
*
- * SilcUInt16 silc_net_get_local_port(int sock);
+ * SilcUInt16 silc_net_get_local_port(SilcSocket sock);
*
* DESCRIPTION
*
* Return local port by socket.
*
***/
-SilcUInt16 silc_net_get_local_port(int sock);
+SilcUInt16 silc_net_get_local_port(SilcSocket sock);
/****f* silcutil/SilcNetAPI/silc_net_localhost
*
***/
char *silc_net_localip(void);
-/****f* silcutil/SilcNetAPI/silc_net_win32_init
- *
- * SYNOPSIS
- *
- * SilcBool 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.
- *
- ***/
-SilcBool 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);
-
#include "silcnet_i.h"
#endif /* SILCNET_H */
projects / silc.git / blobdiff