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- /* ====================================================================
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2000-2002 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Apache" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
-
- #ifndef APR_NETWORK_IO_H
- #define APR_NETWORK_IO_H
- /**
- * @file apr_network_io.h
- * @brief APR Network library
- */
- /**
- * @defgroup APR_Net Network Routines
- * @ingroup APR
- * @{
- */
-
- #include "apr.h"
- #include "apr_pools.h"
- #include "apr_file_io.h"
- #include "apr_errno.h"
- #include "apr_inherit.h"
-
- #if APR_HAVE_NETINET_IN_H
- #include <netinet/in.h>
- #endif
-
- #ifdef __cplusplus
- extern "C" {
- #endif /* __cplusplus */
-
- #ifndef MAX_SECS_TO_LINGER
- #define MAX_SECS_TO_LINGER 30
- #endif
-
- #ifndef APRMAXHOSTLEN
- #define APRMAXHOSTLEN 256
- #endif
-
- #ifndef APR_ANYADDR
- #define APR_ANYADDR "0.0.0.0"
- #endif
-
- /**
- * @defgroup Sock_opt Socket option definitions
- * @{
- */
- #define APR_SO_LINGER 1
- #define APR_SO_KEEPALIVE 2
- #define APR_SO_DEBUG 4
- #define APR_SO_NONBLOCK 8
- #define APR_SO_REUSEADDR 16
- #define APR_SO_TIMEOUT 32
- #define APR_SO_SNDBUF 64
- #define APR_SO_RCVBUF 128
- #define APR_SO_DISCONNECTED 256
- #define APR_TCP_NODELAY 512
- #define APR_TCP_NOPUSH 1024
- #define APR_RESET_NODELAY 2048 /**< This flag is ONLY set internally
- * when we set APR_TCP_NOPUSH with
- * APR_TCP_NODELAY set to tell us that
- * APR_TCP_NODELAY should be turned on
- * again when NOPUSH is turned off
- */
- #define APR_INCOMPLETE_READ 4096 /**< Set on non-blocking sockets
- * (APR_SO_TIMEOUT != 0) on which the
- * previous read() did not fill a buffer
- * completely. the next apr_recv() will
- * first call select()/poll() rather than
- * going straight into read(). (Can also
- * be set by an application to force a
- * select()/poll() call before the next
- * read, in cases where the app expects
- * that an immediate read would fail.)
- */
- #define APR_INCOMPLETE_WRITE 8192 /* like APR_INCOMPLETE_READ, but for write
- */
-
- #define APR_POLLIN 0x001
- #define APR_POLLPRI 0x002
- #define APR_POLLOUT 0x004
- #define APR_POLLERR 0x010
- #define APR_POLLHUP 0x020
- #define APR_POLLNVAL 0x040
- /** @} */
-
- typedef enum {APR_SHUTDOWN_READ, APR_SHUTDOWN_WRITE,
- APR_SHUTDOWN_READWRITE} apr_shutdown_how_e;
-
- #if (!APR_HAVE_IN_ADDR)
- /**
- * We need to make sure we always have an in_addr type, so APR will just
- * define it ourselves, if the platform doesn't provide it.
- */
- struct in_addr {
- apr_uint32_t s_addr; /**< storage to hold the IP# */
- };
- #endif
-
- /**
- * @def APR_INET
- * Not all platforms have these defined, so we'll define them here
- * The default values come from FreeBSD 4.1.1
- */
- #define APR_INET AF_INET
- /** @def APR_UNSPEC
- * Let the system decide which address family to use
- */
- #ifdef AF_UNSPEC
- #define APR_UNSPEC AF_UNSPEC
- #else
- #define APR_UNSPEC 0
- #endif
- #if APR_HAVE_IPV6
- #define APR_INET6 AF_INET6
- #endif
-
- /**
- * Enum to tell us if we're interested in remote or local socket
- */
- typedef enum {
- APR_LOCAL,
- APR_REMOTE
- } apr_interface_e;
-
- /* I guess not everybody uses inet_addr. This defines apr_inet_addr
- * appropriately.
- */
-
- #if APR_HAVE_INET_ADDR
- #define apr_inet_addr inet_addr
- #elif APR_HAVE_INET_NETWORK /* only DGUX, as far as I know */
- /**
- * @warning
- * not generally safe... inet_network() and inet_addr() perform
- * different functions */
- #define apr_inet_addr inet_network
- #endif
-
- typedef struct apr_socket_t apr_socket_t;
- typedef struct apr_pollfd_t apr_pollfd_t;
- /**
- * A structure to encapsulate headers and trailers for apr_sendfile
- */
- typedef struct apr_hdtr_t apr_hdtr_t;
- typedef struct in_addr apr_in_addr_t;
- /** A structure to represent an IP subnet */
- typedef struct apr_ipsubnet_t apr_ipsubnet_t;
-
- /** @remark use apr_uint16_t just in case some system has a short that isn't 16 bits... */
- typedef apr_uint16_t apr_port_t;
-
- /* It's defined here as I think it should all be platform safe...
- */
- /**
- * APRs socket address type, used to ensure protocol independence
- */
- typedef struct apr_sockaddr_t apr_sockaddr_t;
-
- struct apr_sockaddr_t {
- /** The pool to use... */
- apr_pool_t *pool;
- /** The hostname */
- char *hostname;
- /** Either a string of the port number or the service name for the port */
- char *servname;
- /** The numeric port */
- apr_port_t port;
- /** The family */
- apr_int32_t family;
- union {
- /** IPv4 sockaddr structure */
- struct sockaddr_in sin;
- #if APR_HAVE_IPV6
- /** IPv6 sockaddr structure */
- struct sockaddr_in6 sin6;
- #endif
- } sa;
- /** How big is the sockaddr we're using? */
- apr_socklen_t salen;
- /** How big is the ip address structure we're using? */
- int ipaddr_len;
- /** How big should the address buffer be? 16 for v4 or 46 for v6
- * used in inet_ntop... */
- int addr_str_len;
- /** This points to the IP address structure within the appropriate
- * sockaddr structure. */
- void *ipaddr_ptr;
- /** If multiple addresses were found by apr_sockaddr_info_get(), this
- * points to a representation of the next address. */
- apr_sockaddr_t *next;
- };
-
- #if APR_HAS_SENDFILE
- /* Define flags passed in on apr_sendfile() */
- #define APR_SENDFILE_DISCONNECT_SOCKET 1
- #endif
-
- /** A structure to encapsulate headers and trailers for apr_sendfile */
- struct apr_hdtr_t {
- /** An iovec to store the headers sent before the file.
- * @defvar iovec *headers */
- struct iovec* headers;
- /** number of headers in the iovec */
- int numheaders;
- /** An iovec to store the trailers sent after the file.
- * @defvar iovec *trailers */
- struct iovec* trailers;
- /** number of trailers in the iovec */
- int numtrailers;
- };
-
- /* function definitions */
-
- /**
- * Create a socket.
- * @param new_sock The new socket that has been set up.
- * @param family The address family of the socket (e.g., APR_INET).
- * @param type The type of the socket (e.g., SOCK_STREAM).
- * @param cont The pool to use
- */
- APR_DECLARE(apr_status_t) apr_socket_create(apr_socket_t **new_sock,
- int family, int type,
- apr_pool_t *cont);
-
- /**
- * Shutdown either reading, writing, or both sides of a socket.
- * @param thesocket The socket to close
- * @param how How to shutdown the socket. One of:
- * <PRE>
- * APR_SHUTDOWN_READ no longer allow read requests
- * APR_SHUTDOWN_WRITE no longer allow write requests
- * APR_SHUTDOWN_READWRITE no longer allow read or write requests
- * </PRE>
- * @remark This does not actually close the socket descriptor, it just
- * controls which calls are still valid on the socket.
- */
- APR_DECLARE(apr_status_t) apr_shutdown(apr_socket_t *thesocket,
- apr_shutdown_how_e how);
-
- /**
- * Close a socket.
- * @param thesocket The socket to close
- */
- APR_DECLARE(apr_status_t) apr_socket_close(apr_socket_t *thesocket);
-
- /**
- * Bind the socket to its associated port
- * @param sock The socket to bind
- * @param sa The socket address to bind to
- * @remark This may be where we will find out if there is any other process
- * using the selected port.
- */
- APR_DECLARE(apr_status_t) apr_bind(apr_socket_t *sock, apr_sockaddr_t *sa);
-
- /**
- * Listen to a bound socket for connections.
- * @param sock The socket to listen on
- * @param backlog The number of outstanding connections allowed in the sockets
- * listen queue. If this value is less than zero, the listen
- * queue size is set to zero.
- */
- APR_DECLARE(apr_status_t) apr_listen(apr_socket_t *sock, apr_int32_t backlog);
-
- /**
- * Accept a new connection request
- * @param new_sock A copy of the socket that is connected to the socket that
- * made the connection request. This is the socket which should
- * be used for all future communication.
- * @param sock The socket we are listening on.
- * @param connection_pool The pool for the new socket.
- */
- APR_DECLARE(apr_status_t) apr_accept(apr_socket_t **new_sock,
- apr_socket_t *sock,
- apr_pool_t *connection_pool);
-
- /**
- * Issue a connection request to a socket either on the same machine
- * or a different one.
- * @param sock The socket we wish to use for our side of the connection
- * @param sa The address of the machine we wish to connect to. If NULL,
- * APR assumes that the sockaddr_in in the apr_socket is
- * completely filled out.
- */
- APR_DECLARE(apr_status_t) apr_connect(apr_socket_t *sock, apr_sockaddr_t *sa);
-
- /**
- * Create apr_sockaddr_t from hostname, address family, and port.
- * @param sa The new apr_sockaddr_t.
- * @param hostname The hostname or numeric address string to resolve/parse.
- * @param family The address family to use, or APR_UNSPEC if the system should
- * decide.
- * @param port The port number.
- * @param flags Special processing flags.
- * @param p The pool for the apr_sockaddr_t and associated storage.
- */
- APR_DECLARE(apr_status_t) apr_sockaddr_info_get(apr_sockaddr_t **sa,
- const char *hostname,
- apr_int32_t family,
- apr_port_t port,
- apr_int32_t flags,
- apr_pool_t *p);
-
- /**
- * Look up the host name from an apr_sockaddr_t.
- * @param hostname The hostname.
- * @param sa The apr_sockaddr_t.
- * @param flags Special processing flags.
- */
- APR_DECLARE(apr_status_t) apr_getnameinfo(char **hostname,
- apr_sockaddr_t *sa,
- apr_int32_t flags);
-
- /**
- * Parse hostname/IP address with scope id and port.
- *
- * Any of the following strings are accepted:
- * 8080 (just the port number)
- * www.apache.org (just the hostname)
- * www.apache.org:8080 (hostname and port number)
- * [fe80::1]:80 (IPv6 numeric address string only)
- * [fe80::1%eth0] (IPv6 numeric address string and scope id)
- *
- * Invalid strings:
- * (empty string)
- * [abc] (not valid IPv6 numeric address string)
- * abc:65536 (invalid port number)
- *
- * @param addr The new buffer containing just the hostname. On output, *addr
- * will be NULL if no hostname/IP address was specfied.
- * @param scope_id The new buffer containing just the scope id. On output,
- * *scope_id will be NULL if no scope id was specified.
- * @param port The port number. On output, *port will be 0 if no port was
- * specified.
- * @param str The input string to be parsed.
- * @param p The pool from which *addr and *scope_id are allocated.
- * @remark If scope id shouldn't be allowed, check for scope_id != NULL in
- * addition to checking the return code. If addr/hostname should be
- * required, check for addr == NULL in addition to checking the
- * return code.
- */
- APR_DECLARE(apr_status_t) apr_parse_addr_port(char **addr,
- char **scope_id,
- apr_port_t *port,
- const char *str,
- apr_pool_t *p);
-
- /**
- * Get name of the current machine
- * @param buf A buffer to store the hostname in.
- * @param len The maximum length of the hostname that can be stored in the
- * buffer provided. The suggested length is APRMAXHOSTLEN + 1.
- * @param cont The pool to use.
- * @remark If the buffer was not large enough, an error will be returned.
- */
- APR_DECLARE(apr_status_t) apr_gethostname(char *buf, int len, apr_pool_t *cont);
-
- /**
- * Return the data associated with the current socket
- * @param data The user data associated with the socket.
- * @param key The key to associate with the user data.
- * @param sock The currently open socket.
- */
- APR_DECLARE(apr_status_t) apr_socket_data_get(void **data, const char *key,
- apr_socket_t *sock);
-
- /**
- * Set the data associated with the current socket.
- * @param sock The currently open socket.
- * @param data The user data to associate with the socket.
- * @param key The key to associate with the data.
- * @param cleanup The cleanup to call when the socket is destroyed.
- */
- APR_DECLARE(apr_status_t) apr_socket_data_set(apr_socket_t *sock, void *data,
- const char *key,
- apr_status_t (*cleanup)(void*));
-
- /**
- * Send data over a network.
- * @param sock The socket to send the data over.
- * @param buf The buffer which contains the data to be sent.
- * @param len On entry, the number of bytes to send; on exit, the number
- * of bytes sent.
- * @remark
- * <PRE>
- * This functions acts like a blocking write by default. To change
- * this behavior, use apr_setsocketopt with the APR_SO_TIMEOUT option.
- *
- * It is possible for both bytes to be sent and an error to be returned.
- *
- * APR_EINTR is never returned.
- * </PRE>
- */
- APR_DECLARE(apr_status_t) apr_send(apr_socket_t *sock, const char *buf,
- apr_size_t *len);
-
- /**
- * Send multiple packets of data over a network.
- * @param sock The socket to send the data over.
- * @param vec The array of iovec structs containing the data to send
- * @param nvec The number of iovec structs in the array
- * @param len Receives the number of bytes actually written
- * @remark
- * <PRE>
- * This functions acts like a blocking write by default. To change
- * this behavior, use apr_setsocketopt with the APR_SO_TIMEOUT option.
- * The number of bytes actually sent is stored in argument 3.
- *
- * It is possible for both bytes to be sent and an error to be returned.
- *
- * APR_EINTR is never returned.
- * </PRE>
- */
- APR_DECLARE(apr_status_t) apr_sendv(apr_socket_t *sock,
- const struct iovec *vec,
- apr_int32_t nvec, apr_size_t *len);
-
- /**
- * @param sock The socket to send from
- * @param where The apr_sockaddr_t describing where to send the data
- * @param data The data to send
- * @param len The length of the data to send
- */
- APR_DECLARE(apr_status_t) apr_sendto(apr_socket_t *sock, apr_sockaddr_t *where,
- apr_int32_t flags, const char *buf,
- apr_size_t *len);
-
- /**
- * @param from The apr_sockaddr_t to fill in the recipient info
- * @param sock The socket to use
- * @param buf The buffer to use
- * @param len The length of the available buffer
- */
-
- APR_DECLARE(apr_status_t) apr_recvfrom(apr_sockaddr_t *from, apr_socket_t *sock,
- apr_int32_t flags, char *buf,
- apr_size_t *len);
-
- #if APR_HAS_SENDFILE || defined(DOXYGEN)
-
- /**
- * Send a file from an open file descriptor to a socket, along with
- * optional headers and trailers
- * @param sock The socket to which we're writing
- * @param file The open file from which to read
- * @param hdtr A structure containing the headers and trailers to send
- * @param offset Offset into the file where we should begin writing
- * @param len (input) - Number of bytes to send from the file
- * (output) - Number of bytes actually sent,
- * including headers, file, and trailers
- * @param flags APR flags that are mapped to OS specific flags
- * @remark This functions acts like a blocking write by default. To change
- * this behavior, use apr_setsocketopt with the APR_SO_TIMEOUT option.
- * The number of bytes actually sent is stored in argument 5.
- */
- APR_DECLARE(apr_status_t) apr_sendfile(apr_socket_t *sock, apr_file_t *file,
- apr_hdtr_t *hdtr, apr_off_t *offset,
- apr_size_t *len, apr_int32_t flags);
-
- #endif /* APR_HAS_SENDFILE */
-
- /**
- * Read data from a network.
- * @param sock The socket to read the data from.
- * @param buf The buffer to store the data in.
- * @param len On entry, the number of bytes to receive; on exit, the number
- * of bytes received.
- * @remark
- * <PRE>
- * This functions acts like a blocking read by default. To change
- * this behavior, use apr_setsocketopt with the APR_SO_TIMEOUT option.
- * The number of bytes actually sent is stored in argument 3.
- *
- * It is possible for both bytes to be received and an APR_EOF or
- * other error to be returned.
- *
- * APR_EINTR is never returned.
- * </PRE>
- */
- APR_DECLARE(apr_status_t) apr_recv(apr_socket_t *sock,
- char *buf, apr_size_t *len);
-
- /**
- * Setup socket options for the specified socket
- * @param sock The socket to set up.
- * @param opt The option we would like to configure. One of:
- * <PRE>
- * APR_SO_DEBUG -- turn on debugging information
- * APR_SO_KEEPALIVE -- keep connections active
- * APR_SO_LINGER -- lingers on close if data is present
- * APR_SO_NONBLOCK -- Turns blocking on/off for socket
- * APR_SO_REUSEADDR -- The rules used in validating addresses
- * supplied to bind should allow reuse
- * of local addresses.
- * APR_SO_TIMEOUT -- Set the timeout value in microseconds.
- * values < 0 mean wait forever. 0 means
- * don't wait at all.
- * APR_SO_SNDBUF -- Set the SendBufferSize
- * APR_SO_RCVBUF -- Set the ReceiveBufferSize
- * </PRE>
- * @param on Value for the option.
- */
- APR_DECLARE(apr_status_t) apr_setsocketopt(apr_socket_t *sock,
- apr_int32_t opt, apr_int32_t on);
-
- /**
- * Query socket options for the specified socket
- * @param sock The socket to query
- * @param opt The option we would like to query. One of:
- * <PRE>
- * APR_SO_DEBUG -- turn on debugging information
- * APR_SO_KEEPALIVE -- keep connections active
- * APR_SO_LINGER -- lingers on close if data is present
- * APR_SO_NONBLOCK -- Turns blocking on/off for socket
- * APR_SO_REUSEADDR -- The rules used in validating addresses
- * supplied to bind should allow reuse
- * of local addresses.
- * APR_SO_TIMEOUT -- Set the timeout value in microseconds.
- * values < 0 mean wait forever. 0 means
- * don't wait at all.
- * APR_SO_SNDBUF -- Set the SendBufferSize
- * APR_SO_RCVBUF -- Set the ReceiveBufferSize
- * APR_SO_DISCONNECTED -- Query the disconnected state of the socket.
- * (Currently only used on Windows)
- * </PRE>
- * @param on Socket option returned on the call.
- */
- APR_DECLARE(apr_status_t) apr_getsocketopt(apr_socket_t *sock,
- apr_int32_t opt, apr_int32_t *on);
-
- /**
- * Return an apr_sockaddr_t from an apr_socket_t
- * @param sa The returned apr_sockaddr_t.
- * @param which Which interface do we want the apr_sockaddr_t for?
- * @param sock The socket to use
- */
- APR_DECLARE(apr_status_t) apr_socket_addr_get(apr_sockaddr_t **sa,
- apr_interface_e which,
- apr_socket_t *sock);
-
- /**
- * Set the port in an APR socket address.
- * @param sockaddr The socket address to set.
- * @param port The port to be stored in the socket address.
- */
- APR_DECLARE(apr_status_t) apr_sockaddr_port_set(apr_sockaddr_t *sockaddr,
- apr_port_t port);
-
- /**
- * Return the port in an APR socket address.
- * @param port The port from the socket address.
- * @param sockaddr The socket address to reference.
- */
- APR_DECLARE(apr_status_t) apr_sockaddr_port_get(apr_port_t *port,
- apr_sockaddr_t *sockaddr);
-
- /**
- * Set the IP address in an APR socket address.
- * @param sockaddr The socket address to use
- * @param addr The IP address to attach to the socket.
- * Use APR_ANYADDR to use any IP addr on the machine.
- */
- APR_DECLARE(apr_status_t) apr_sockaddr_ip_set(apr_sockaddr_t *sockaddr,
- const char *addr);
-
- /**
- * Return the IP address (in numeric address string format) in
- * an APR socket address.
- * @param addr The IP address.
- * @param sockaddr The socket address to reference.
- */
- APR_DECLARE(apr_status_t) apr_sockaddr_ip_get(char **addr,
- apr_sockaddr_t *sockaddr);
-
- /**
- * See if the IP addresses in two APR socket addresses are
- * equivalent. Appropriate logic is present for comparing
- * IPv4-mapped IPv6 addresses with IPv4 addresses.
- *
- * @param addr1 One of the APR socket addresses.
- * @param addr2 The other APR socket address.
- * @remark The return value will be non-zero if the addresses
- * are equivalent.
- */
- APR_DECLARE(int) apr_sockaddr_equal(const apr_sockaddr_t *addr1,
- const apr_sockaddr_t *addr2);
-
- /**
- * Setup the memory required for poll to operate properly
- * @param new_poll The poll structure to be used.
- * @param num The number of socket descriptors to be polled.
- * @param cont The pool to operate on.
- */
- APR_DECLARE(apr_status_t) apr_poll_setup(apr_pollfd_t **new_poll,
- apr_int32_t num,
- apr_pool_t *cont);
-
- /**
- * Poll the sockets in the poll structure
- * @param aprset The poll structure we will be using.
- * @param nsds The number of sockets we are polling.
- * @param timeout The amount of time in microseconds to wait. This is
- * a maximum, not a minimum. If a socket is signalled, we
- * will wake up before this time. A negative number means
- * wait until a socket is signalled.
- * @remark
- * <PRE>
- * The number of sockets signalled is returned in the second argument.
- *
- * This is a blocking call, and it will not return until either a
- * socket has been signalled, or the timeout has expired.
- * </PRE>
- */
- APR_DECLARE(apr_status_t) apr_poll(apr_pollfd_t *aprset, apr_int32_t *nsds,
- apr_interval_time_t timeout);
-
- /**
- * Add a socket to the poll structure.
- * @param aprset The poll structure we will be using.
- * @param socket The socket to add to the current poll structure.
- * @param event The events to look for when we do the poll. One of:
- * <PRE>
- * APR_POLLIN signal if read will not block
- * APR_POLLPRI signal if prioirty data is availble to be read
- * APR_POLLOUT signal if write will not block
- * </PRE>
- */
- APR_DECLARE(apr_status_t) apr_poll_socket_add(apr_pollfd_t *aprset,
- apr_socket_t *sock,
- apr_int16_t event);
-
- /**
- * Modify a socket in the poll structure with mask.
- * @param aprset The poll structure we will be using.
- * @param sock The socket to modify in poll structure.
- * @param events The events to stop looking for during the poll. One of:
- * <PRE>
- * APR_POLLIN signal if read will not block
- * APR_POLLPRI signal if priority data is available to be read
- * APR_POLLOUT signal if write will not block
- * </PRE>
- */
- APR_DECLARE(apr_status_t) apr_poll_socket_mask(apr_pollfd_t *aprset,
- apr_socket_t *sock,
- apr_int16_t events);
- /**
- * Remove a socket from the poll structure.
- * @param aprset The poll structure we will be using.
- * @param sock The socket to remove from the current poll structure.
- */
- APR_DECLARE(apr_status_t) apr_poll_socket_remove(apr_pollfd_t *aprset,
- apr_socket_t *sock);
-
- /**
- * Remove all sockets from the poll structure.
- * @param aprset The poll structure we will be using.
- * @param events The events to clear from all sockets. One of:
- * <PRE>
- * APR_POLLIN signal if read will not block
- * APR_POLLPRI signal if priority data is available to be read
- * APR_POLLOUT signal if write will not block
- * </PRE>
- */
- APR_DECLARE(apr_status_t) apr_poll_socket_clear(apr_pollfd_t *aprset,
- apr_int16_t events);
-
- /**
- * Get the return events for the specified socket.
- * @param event The returned events for the socket. One of:
- * <PRE>
- * APR_POLLIN Data is available to be read
- * APR_POLLPRI Priority data is availble to be read
- * APR_POLLOUT Write will succeed
- * APR_POLLERR An error occurred on the socket
- * APR_POLLHUP The connection has been terminated
- * APR_POLLNVAL This is an invalid socket to poll on.
- * Socket not open.
- * </PRE>
- * @param sock The socket we wish to get information about.
- * @param aprset The poll structure we will be using.
- */
- APR_DECLARE(apr_status_t) apr_poll_revents_get(apr_int16_t *event,
- apr_socket_t *sock,
- apr_pollfd_t *aprset);
-
- /**
- * Return the data associated with the current poll.
- * @param pollfd The currently open pollfd.
- * @param key The key to use for retrieving data associated with a poll struct.
- * @param data The user data associated with the pollfd.
- */
- APR_DECLARE(apr_status_t) apr_poll_data_get(apr_pollfd_t *pollfd,
- const char *key, void *data);
-
- /**
- * Set the data associated with the current poll.
- * @param pollfd The currently open pollfd.
- * @param data The key to associate with the data.
- * @param key The user data to associate with the pollfd.
- * @param cleanup The cleanup function
- */
- APR_DECLARE(apr_status_t) apr_poll_data_set(apr_pollfd_t *pollfd, void *data,
- const char *key,
- apr_status_t (*cleanup)(void *));
-
- #if APR_FILES_AS_SOCKETS || defined(DOXYGEN)
-
- /**
- * Convert a File type to a socket so that it can be used in a poll operation.
- * @param newsock the newly created socket which represents a file.
- * @param file the file to mask as a socket.
- * @warning This is not available on all platforms. Platforms that have the
- * ability to poll files for data to be read/written/exceptions will
- * have the APR_FILES_AS_SOCKETS macro defined as true.
- */
- APR_DECLARE(apr_status_t) apr_socket_from_file(apr_socket_t **newsock,
- apr_file_t *file);
-
- #endif /* APR_FILES_AS_SOCKETS */
-
- /**
- * Given an apr_sockaddr_t and a service name, set the port for the service
- * @param sockaddr The apr_sockaddr_t that will have its port set
- * @param servname The name of the service you wish to use
- */
- APR_DECLARE(apr_status_t) apr_getservbyname(apr_sockaddr_t *sockaddr,
- const char *servname);
-
- /**
- * Build an ip-subnet representation from an IP address and optional netmask or
- * number-of-bits.
- * @param ipsub The new ip-subnet representation
- * @param ipstr The input IP address string
- * @param mask_or_numbits The input netmask or number-of-bits string, or NULL
- * @param p The pool to allocate from
- */
- APR_DECLARE(apr_status_t) apr_ipsubnet_create(apr_ipsubnet_t **ipsub, const char *ipstr,
- const char *mask_or_numbits, apr_pool_t *p);
-
- /**
- * Test the IP address in an apr_sockaddr_t against a pre-built ip-subnet
- * representation.
- * @param ipsub The ip-subnet representation
- * @param sa The socket address to test
- * @return non-zero if the socket address is within the subnet, 0 otherwise
- */
- APR_DECLARE(int) apr_ipsubnet_test(apr_ipsubnet_t *ipsub, apr_sockaddr_t *sa);
-
- #if APR_HAS_SO_ACCEPTFILTER || defined(DOXYGEN)
- /**
- * Set an OS level accept filter.
- * @param sock The socket to put the accept filter on.
- * @param name The accept filter
- * @param args Any extra args to the accept filter. Passing NULL here removes
- * the accept filter.
- */
- apr_status_t apr_socket_accept_filter(apr_socket_t *sock, char *name,
- char *args);
- #endif
-
- /**
- * Set a socket to be inherited by child processes.
- * @param socket The socket to enable inheritance.
- */
- APR_DECLARE(void) apr_socket_inherit_set(apr_socket_t *skt);
-
- /** @deprecated @see apr_socket_inherit_set */
- APR_DECLARE(void) apr_socket_set_inherit(apr_socket_t *skt);
-
- /**
- * Unset a socket from being inherited by child processes.
- * @param socket The socket to disable inheritance.
- */
- APR_DECLARE(void) apr_socket_inherit_unset(apr_socket_t *skt);
-
- /** @deprecated @see apr_socket_inherit_unset */
- APR_DECLARE(void) apr_socket_unset_inherit(apr_socket_t *skt);
-
- #ifdef __cplusplus
- }
- #endif
- /** @} */
- #endif /* ! APR_NETWORK_IO_H */
-
-