Blame src/accept.c

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/******************************************************************************
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Copyright 1993, 1998  The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Author: Ralph Mor, X Consortium
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******************************************************************************/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <X11/ICE/ICElib.h>
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#include "ICElibint.h"
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#include <X11/Xtrans/Xtrans.h>
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IceConn
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IceAcceptConnection (
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	IceListenObj 	listenObj,
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	IceAcceptStatus	*statusRet
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)
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{
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    IceConn    		iceConn;
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    XtransConnInfo	newconn;
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    iceByteOrderMsg 	*pMsg;
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    int   		endian, status;
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    /*
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     * Accept the connection.
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     */
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    if ((newconn = _IceTransAccept (listenObj->trans_conn, &status)) == NULL)
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    {
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	if (status == TRANS_ACCEPT_BAD_MALLOC)
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	    *statusRet = IceAcceptBadMalloc;
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	else
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	    *statusRet = IceAcceptFailure;
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	return (NULL);
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    }
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    /*
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     * Set close-on-exec so that programs that fork() don't get confused.
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     */
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    _IceTransSetOption (newconn, TRANS_CLOSEONEXEC, 1);
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    /*
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     * Create an ICE object for this connection.
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     */
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    if ((iceConn = malloc (sizeof (struct _IceConn))) == NULL)
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    {
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	_IceTransClose (newconn);
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	*statusRet = IceAcceptBadMalloc;
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	return (NULL);
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    }
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    iceConn->listen_obj = listenObj;
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    iceConn->waiting_for_byteorder = True;
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    iceConn->connection_status = IceConnectPending;
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    iceConn->io_ok = True;
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    iceConn->dispatch_level = 0;
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    iceConn->context = NULL;
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    iceConn->my_ice_version_index = 0;
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    iceConn->trans_conn = newconn;
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    iceConn->send_sequence = 0;
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    iceConn->receive_sequence = 0;
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    iceConn->connection_string = strdup(listenObj->network_id);
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    if (iceConn->connection_string == NULL)
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    {
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	_IceTransClose (newconn);
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	free (iceConn);
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	*statusRet = IceAcceptBadMalloc;
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	return (NULL);
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    }
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    iceConn->vendor = NULL;
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    iceConn->release = NULL;
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    if ((iceConn->inbuf = iceConn->inbufptr = malloc (ICE_INBUFSIZE)) != NULL)
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    {
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	iceConn->inbufmax = iceConn->inbuf + ICE_INBUFSIZE;
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    }
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    else
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    {
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	_IceTransClose (newconn);
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	free (iceConn->connection_string);
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	free (iceConn);
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	*statusRet = IceAcceptBadMalloc;
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	return (NULL);
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    }
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    if ((iceConn->outbuf = iceConn->outbufptr = malloc (ICE_OUTBUFSIZE)) != NULL)
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    {
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	iceConn->outbufmax = iceConn->outbuf + ICE_OUTBUFSIZE;
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    }
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    else
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    {
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	_IceTransClose (newconn);
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	free (iceConn->connection_string);
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	free (iceConn->inbuf);
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	free (iceConn);
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	*statusRet = IceAcceptBadMalloc;
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	return (NULL);
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    }
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    iceConn->scratch = NULL;
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    iceConn->scratch_size = 0;
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    iceConn->open_ref_count = 1;
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    iceConn->proto_ref_count = 0;
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    iceConn->skip_want_to_close = False;
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    iceConn->want_to_close = False;
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    iceConn->free_asap = False;
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    iceConn->saved_reply_waits = NULL;
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    iceConn->ping_waits = NULL;
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    iceConn->process_msg_info = NULL;
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    iceConn->connect_to_you = NULL;
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    iceConn->protosetup_to_you = NULL;
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    iceConn->connect_to_me = NULL;
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    iceConn->protosetup_to_me = NULL;
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    /*
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     * Send our byte order.
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     */
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    IceGetHeader (iceConn, 0, ICE_ByteOrder,
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	SIZEOF (iceByteOrderMsg), iceByteOrderMsg, pMsg);
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    endian = 1;
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    if (*(char *) &endian)
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	pMsg->byteOrder = IceLSBfirst;
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    else
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	pMsg->byteOrder = IceMSBfirst;
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    IceFlush (iceConn);
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    if (_IceWatchProcs)
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    {
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	/*
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	 * Notify the watch procedures that an iceConn was opened.
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	 */
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	_IceConnectionOpened (iceConn);
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    }
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    *statusRet = IceAcceptSuccess;
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    return (iceConn);
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}