1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/genericopenlibs/cstdlib/LPOSIX/NETCALLS.CPP Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,342 @@
1.4 +// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +// connectors for re-entrant networking system calls
1.18 +//
1.19 +//
1.20 +
1.21 +#include "SYSIF.H"
1.22 +#include "LPOSIX.H"
1.23 +
1.24 +#include <reent.h>
1.25 +#include <sys/socket.h>
1.26 +
1.27 +extern "C" {
1.28 +
1.29 +/**
1.30 +@param family Specifies the address family used in the communications domain.
1.31 +@param style Type of socket.
1.32 +@param protocol Protocol used with that socket.
1.33 +
1.34 +@return On Success, non-negative integer, the socket file descriptor.
1.35 + On Failure, returns -1, eerno may be set.
1.36 +*/
1.37 +EXPORT_C int socket (int family, int style, int protocol)
1.38 + {
1.39 + struct _reent *r = _REENT2;
1.40 + if (!r)
1.41 + return -1; // Memory for library globals is not allocated (errno not set).
1.42 + return _socket_r (r, family, style, protocol);
1.43 + }
1.44 +EXPORT_C int _socket_r (struct _reent *r, int family, int style, int protocol)
1.45 + {
1.46 + MSystemInterface& sysIf=Interface(r);
1.47 + return sysIf.socket(family,style,protocol,r->_errno);
1.48 + }
1.49 +
1.50 +/**
1.51 +Receives a message from a socket.
1.52 +The recv() call can be used on a connection mode socket or a bound,
1.53 +connectionless socket. If no messages are available at the socket,
1.54 +the recv() call waits for a message to arrive unless the socket is nonblocking.
1.55 +
1.56 +@param fd Specifies a socket descriptor to use for the send.
1.57 +@param buf Points to the buffer containing message to send.
1.58 +@param cnt Specifies the length of the message in bytes.
1.59 +@param flags Lets the sender control the way data is sent.
1.60 +
1.61 +@return On Success, returns the number of bytes received.
1.62 + On Failure, returns -1, eerno may be set.
1.63 +*/
1.64 +EXPORT_C int recv (int fd, char *buf, size_t cnt, int flags)
1.65 + {
1.66 + struct _reent *r = _REENT2;
1.67 + if (!r)
1.68 + return -1; // Memory for library globals is not allocated (errno not set).
1.69 + return _recvfrom_r (r, fd, buf, cnt, flags, 0, 0);
1.70 + }
1.71 +
1.72 +/**
1.73 +@return On Succcess, returns length of message in bytes, can be 0.
1.74 + On Failure, returns -1, errno may be set.
1.75 +*/
1.76 +EXPORT_C int recvfrom (int fd, char *buf, size_t cnt, int flags, struct sockaddr* from, size_t* fromsize)
1.77 + {
1.78 + struct _reent *r = _REENT2;
1.79 + if (!r)
1.80 + return -1; // Memory for library globals is not allocated (errno not set).
1.81 + return _recvfrom_r (r, fd, buf, cnt, flags, from ,fromsize);
1.82 + }
1.83 +EXPORT_C int _recvfrom_r (struct _reent *r, int fd, char *buf, size_t nbyte, int flags, struct sockaddr* from, size_t* fromsize)
1.84 + {
1.85 + MSystemInterface& sysIf=Interface(r);
1.86 + return sysIf.recvfrom(fd,buf,nbyte,flags,from,(unsigned long*)fromsize,r->_errno);
1.87 + }
1.88 +
1.89 +/**
1.90 +Initiates transmission of a message from the specified socket to its peer.
1.91 +The send() function sends a message only when the socket is connected.
1.92 +
1.93 +@param fd Specifies a socket descriptor to use for the send.
1.94 +@param buf Points to the buffer containing message to send.
1.95 +@param cnt Specifies the length of the message in bytes.
1.96 +@param flags Lets the sender control the way data is sent.
1.97 +
1.98 +@return On Success, returns the numbers of characters sent.
1.99 + On Failure, returns -1, errno may be set.
1.100 +*/
1.101 +EXPORT_C int send (int fd, const char *buf, size_t cnt, int flags)
1.102 + {
1.103 + struct _reent *r = _REENT2;
1.104 + if (!r)
1.105 + return -1; // Memory for library globals is not allocated (errno not set).
1.106 + return _sendto_r (r, fd, buf, cnt, flags, 0, 0);
1.107 + }
1.108 +
1.109 +/**
1.110 +@return On Success, returns the numbers of characters sent.
1.111 + On Failure, returns -1, errno may be set.
1.112 +*/
1.113 +EXPORT_C int sendto (int fd, const char *buf, size_t cnt, int flags, struct sockaddr* to, size_t tosize)
1.114 + {
1.115 + struct _reent *r = _REENT2;
1.116 + if (!r)
1.117 + return -1; // Memory for library globals is not allocated (errno not set).
1.118 + return _sendto_r (r, fd, buf, cnt, flags, to, tosize);
1.119 + }
1.120 +EXPORT_C int _sendto_r (struct _reent *r, int fd, const char *buf, size_t nbyte, int flags, struct sockaddr* to, size_t tosize)
1.121 + {
1.122 + MSystemInterface& sysIf=Interface(r);
1.123 + return sysIf.sendto(fd,buf,nbyte,flags,to,tosize,r->_errno);
1.124 + }
1.125 +
1.126 +/**
1.127 +Shuts down all or part of a full-duplex connection on the socket associated with fd.
1.128 +
1.129 +@param fd Is the socket descriptor to shut down.
1.130 +@param how Specifies the type of shutdown.
1.131 +
1.132 +@return On Success, returns 0.
1.133 + On Failure, returns -1, errno may be set.
1.134 +*/
1.135 +EXPORT_C int shutdown (int fd, int how)
1.136 + {
1.137 + struct _reent *r = _REENT2;
1.138 + if (!r)
1.139 + return -1; // Memory for library globals is not allocated (errno not set).
1.140 + return _shutdown_r (r, fd, how);
1.141 + }
1.142 +EXPORT_C int _shutdown_r (struct _reent *r, int fd, int how)
1.143 + {
1.144 + MSystemInterface& sysIf=Interface(r);
1.145 + return sysIf.shutdown(fd,how,r->_errno);
1.146 + }
1.147 +
1.148 +/**
1.149 +Marks a connection-mode socket, specified by the socket argument fd,
1.150 +as accepting connections, and limits the number of outstanding connections
1.151 +in the socket's listen queue to the value specified by the n argument.
1.152 +The socket fd is put into 'passive' mode where incoming connection
1.153 +requests are acknowledged and queued pending acceptance by the process.
1.154 +
1.155 +@param fd Is a descriptor identifying a bound, unconnected socket.
1.156 +@param n Is the maximum length that the queue of pending connections
1.157 + may grow to. If this value is SOMAXCONN, then the underlying service provider
1.158 + responsible for socket fd sets the backlog to a maximum "reasonable" value.
1.159 +
1.160 +@return On Success, returns 0.
1.161 + On Failure, returns -1, errno may be set.
1.162 +*/
1.163 +EXPORT_C int listen (int fd, int n)
1.164 + {
1.165 + struct _reent *r = _REENT2;
1.166 + if (!r)
1.167 + return -1; // Memory for library globals is not allocated (errno not set).
1.168 + return _listen_r (r, fd, n);
1.169 + }
1.170 +EXPORT_C int _listen_r (struct _reent *r, int fd, int n)
1.171 + {
1.172 + MSystemInterface& sysIf=Interface(r);
1.173 + return sysIf.listen(fd,n,r->_errno);
1.174 + }
1.175 +
1.176 +/**
1.177 +accepts a connection on a socket. An incoming connection is acknowledged and associated with
1.178 +an immediately created socket. The original socket is returned to the listening state.
1.179 +
1.180 +@param fd Is the integer descriptor of the desired socket.
1.181 +@param addr Points to a sockaddr structure containing the socket address.
1.182 +@param size Points to an integer that states the address length in bytes.
1.183 +
1.184 +@return On Success, returns a non-negative integer, which is a descriptor of the accepted socket.
1.185 + Upon return, addrlen contains the actual length in bytes of the address returned.
1.186 + On Failure, returns -1, errno may be set.
1.187 +*/
1.188 +EXPORT_C int accept (int fd, struct sockaddr *addr, size_t *size)
1.189 + {
1.190 + struct _reent *r = _REENT2;
1.191 + if (!r)
1.192 + return -1; // Memory for library globals is not allocated (errno not set).
1.193 + return _accept_r (r, fd, addr, size);
1.194 + }
1.195 +EXPORT_C int _accept_r (struct _reent *r, int fd, struct sockaddr *addr, size_t *size)
1.196 + {
1.197 + MSystemInterface& sysIf=Interface(r);
1.198 + int newfd=sysIf.accept(fd,r->_errno);
1.199 + if (newfd>=0)
1.200 + sysIf.sockname(newfd,addr,(unsigned long*)size,1,r->_errno); // getpeername
1.201 + return newfd;
1.202 + }
1.203 +
1.204 +/**
1.205 +Associate that socket with a port.
1.206 +
1.207 +@param fd Is the integer descriptor of the desired socket.
1.208 +@param addr Points to a sockaddr structure containing the socket address.
1.209 +@param size Points to an integer that states the address length in bytes.
1.210 +
1.211 +@return On Success, returns 0.
1.212 + On Failure, returns -1, errno may be set.
1.213 +*/
1.214 +EXPORT_C int bind (int fd, struct sockaddr *addr, size_t size)
1.215 + {
1.216 + struct _reent *r = _REENT2;
1.217 + if (!r)
1.218 + return -1; // Memory for library globals is not allocated (errno not set).
1.219 + return _bind_r (r, fd, addr, size);
1.220 + }
1.221 +EXPORT_C int _bind_r (struct _reent *r, int fd, struct sockaddr *addr, size_t size)
1.222 + {
1.223 + MSystemInterface& sysIf=Interface(r);
1.224 + return sysIf.bind(fd,addr,size,r->_errno);
1.225 + }
1.226 +
1.227 +/**
1.228 +Used by a client program to establish communication with a remote entity
1.229 +
1.230 +@param fd Is the integer descriptor of the desired socket.
1.231 +@param addr Points to a sockaddr structure containing the socket address.
1.232 +@param size Points to an integer that states the address length in bytes.
1.233 +
1.234 +@return On Success, returns 0.
1.235 + On Failure, returns -1, errno may be set.
1.236 +*/
1.237 +EXPORT_C int connect (int fd, struct sockaddr *addr, size_t size)
1.238 + {
1.239 + struct _reent *r = _REENT2;
1.240 + if (!r)
1.241 + return -1; // Memory for library globals is not allocated (errno not set).
1.242 + return _connect_r (r, fd, addr, size);
1.243 + }
1.244 +EXPORT_C int _connect_r (struct _reent *r, int fd, struct sockaddr *addr, size_t size)
1.245 + {
1.246 + MSystemInterface& sysIf=Interface(r);
1.247 + return sysIf.connect(fd,addr,size,r->_errno);
1.248 + }
1.249 +
1.250 +/**
1.251 +Returns the current name for the specified socket. The namelen parameter should be initialized
1.252 +to indicate the amount of space pointed to by name. When returned, namelen contains the actual
1.253 +size (in bytes) of the name returned.
1.254 +
1.255 +@param fd Is the integer descriptor of the desired socket.
1.256 +@param addr Points to a sockaddr structure containing the socket address.
1.257 +@param size Points to an integer that states the address length in bytes.
1.258 +
1.259 +@return On Success, returns 0.
1.260 + On Failure, returns -1, errno may be set.
1.261 +*/
1.262 +EXPORT_C int getsockname (int fd, struct sockaddr *addr, size_t* size)
1.263 + {
1.264 + struct _reent *r = _REENT2;
1.265 + if (!r)
1.266 + return -1; // Memory for library globals is not allocated (errno not set).
1.267 + return _getsockname_r (r, fd, addr, size);
1.268 + }
1.269 +EXPORT_C int _getsockname_r (struct _reent *r, int fd, struct sockaddr *addr, size_t* size)
1.270 + {
1.271 + MSystemInterface& sysIf=Interface(r);
1.272 + return sysIf.sockname(fd,addr,(unsigned long*)size,0,r->_errno);
1.273 + }
1.274 +
1.275 +/**
1.276 +Returns the peer address of the specified socket.
1.277 +
1.278 +@return On Success, returns 0.
1.279 + On Failure, returns -1, errno may be set.
1.280 +*/
1.281 +EXPORT_C int getpeername (int fd, struct sockaddr *addr, size_t* size)
1.282 + {
1.283 + struct _reent *r = _REENT2;
1.284 + if (!r)
1.285 + return -1; // Memory for library globals is not allocated (errno not set).
1.286 + return _getpeername_r (r, fd, addr, size);
1.287 + }
1.288 +EXPORT_C int _getpeername_r (struct _reent *r, int fd, struct sockaddr *addr, size_t* size)
1.289 + {
1.290 + MSystemInterface& sysIf=Interface(r);
1.291 + return sysIf.sockname(fd,addr,(unsigned long*)size,1,r->_errno);
1.292 + }
1.293 +
1.294 +/**
1.295 +Manipulates options associated with a socket.
1.296 +
1.297 +@return On Success, returns 0.
1.298 + On Failure, returns -1, errno may be set.
1.299 +*/
1.300 +EXPORT_C int getsockopt (int fd, int level, int opt, void* buf, size_t* len)
1.301 + {
1.302 + struct _reent *r = _REENT2;
1.303 + if (!r)
1.304 + return -1; // Memory for library globals is not allocated (errno not set).
1.305 + return _getsockopt_r (r, fd, level, opt, buf, len);
1.306 + }
1.307 +EXPORT_C int _getsockopt_r (struct _reent *r, int fd, int level, int opt, void* buf, size_t* len)
1.308 + {
1.309 + MSystemInterface& sysIf=Interface(r);
1.310 + return sysIf.getsockopt(fd,level,opt,buf,(unsigned long*)len,r->_errno);
1.311 + }
1.312 +
1.313 +/**
1.314 +Manipulates options associated with a socket. Options can exist at multiple protocol levels.
1.315 +However, the options are always present at the uppermost socket level. Options affect socket
1.316 +operations, such as the routing of packets, out-of-band data transfer, and so on.
1.317 +
1.318 +@param fd Specifies a socket for which an option should be set.
1.319 +@param level Identifies whether the operation applies to the socket itself or to the underlying
1.320 + protocol being used. The socket itself is identified by the symbolic constant SOL_SOCKET.
1.321 + Other protocol levels require the protocol number for the appropriate protocol
1.322 + controlling the option.
1.323 +@param opt Specifies a single option to which the request applies,
1.324 + negative option values are not support on Symbian OS.
1.325 +@param buf Specifies a value for the option.
1.326 +@param len Specifies the length of the option value.
1.327 +
1.328 +@return On Success, returns 0.
1.329 + On Failure, returns -1, errno may be set.
1.330 +*/
1.331 +EXPORT_C int setsockopt (int fd, int level, int opt, void* buf, size_t len)
1.332 + {
1.333 + struct _reent *r = _REENT2;
1.334 + if (!r)
1.335 + return -1; // Memory for library globals is not allocated (errno not set).
1.336 + return _setsockopt_r (r, fd, level, opt, buf, len);
1.337 + }
1.338 +EXPORT_C int _setsockopt_r (struct _reent *r, int fd, int level, int opt, void* buf, size_t len)
1.339 + {
1.340 + MSystemInterface& sysIf=Interface(r);
1.341 + return sysIf.setsockopt(fd,level,opt,buf,len,r->_errno);
1.342 + }
1.343 +
1.344 +
1.345 +} // extern "C"