R6.6 is the Xorg base-lineXORG-MAINXORG-STABLE

1 files changed, 289 insertions, 0 deletions

diff --git a/src/protosetup.c b/src/protosetup.c
new file mode 100644
index 0000000..78be316
--- /dev/null
+++ b/src/protosetup.c
@@ -0,0 +1,289 @@
+/* $Xorg: protosetup.c,v 1.4 2001/02/09 02:03:26 xorgcvs Exp $ */
+/******************************************************************************
+
+
+Copyright 1993, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+Author: Ralph Mor, X Consortium
+******************************************************************************/
+
+#include <X11/ICE/ICElib.h>
+#include "ICElibint.h"
+
+
+IceProtocolSetupStatus
+IceProtocolSetup (iceConn, myOpcode, clientData, mustAuthenticate,
+    majorVersionRet, minorVersionRet, vendorRet, releaseRet,
+    errorLength, errorStringRet)
+
+IceConn	   iceConn;
+int 	   myOpcode;
+IcePointer clientData;
+Bool       mustAuthenticate;
+int	   *majorVersionRet;
+int	   *minorVersionRet;
+char	   **vendorRet;
+char	   **releaseRet;
+int  	   errorLength;
+char 	   *errorStringRet;
+
+{
+    iceProtocolSetupMsg	*pMsg;
+    char		*pData;
+    _IceProtocol	*myProtocol;
+    int			extra;
+    Bool		gotReply, ioErrorOccured;
+    int			accepted, i;
+    int			hisOpcode;
+    unsigned long	setup_sequence;
+    IceReplyWaitInfo 	replyWait;
+    _IceReply		reply;
+    IcePoVersionRec	*versionRec;
+    int			authCount;
+    int			*authIndices;
+
+    if (errorStringRet && errorLength > 0)
+	*errorStringRet = '\0';
+
+    *majorVersionRet = 0;
+    *minorVersionRet = 0;
+    *vendorRet = NULL;
+    *releaseRet = NULL;
+
+    if (myOpcode < 1 || myOpcode > _IceLastMajorOpcode)
+    {
+	strncpy (errorStringRet, "myOpcode out of range", errorLength);
+	return (IceProtocolSetupFailure);
+    }
+
+    myProtocol = &_IceProtocols[myOpcode - 1];
+
+    if (myProtocol->orig_client == NULL)
+    {
+	strncpy (errorStringRet,
+	    "IceRegisterForProtocolSetup was not called", errorLength);
+	return (IceProtocolSetupFailure);
+    }
+
+
+    /*
+     * Make sure this protocol hasn't been activated already.
+     */
+
+    if (iceConn->process_msg_info)
+    {
+	for (i = iceConn->his_min_opcode; i <= iceConn->his_max_opcode; i++)
+	{
+	    if (iceConn->process_msg_info[
+		i - iceConn->his_min_opcode].in_use &&
+                iceConn->process_msg_info[
+		i - iceConn->his_min_opcode ].my_opcode == myOpcode)
+		break;
+	}
+
+	if (i <= iceConn->his_max_opcode)
+	{
+	    return (IceProtocolAlreadyActive);
+	}
+    }
+
+    /*
+     * Generate the message.
+     */
+
+    if (myProtocol->orig_client->auth_count > 0)
+    {
+	authIndices = (int *) malloc (
+	    myProtocol->orig_client->auth_count * sizeof (int));
+
+	_IceGetPoValidAuthIndices (myProtocol->protocol_name,
+	    iceConn->connection_string,
+	    myProtocol->orig_client->auth_count,
+	    myProtocol->orig_client->auth_names,
+            &authCount, authIndices);
+
+    }
+    else
+    {
+	authCount = 0;
+	authIndices = NULL;
+    }
+
+    extra = STRING_BYTES (myProtocol->protocol_name) +
+            STRING_BYTES (myProtocol->orig_client->vendor) +
+            STRING_BYTES (myProtocol->orig_client->release);
+
+    for (i = 0; i < authCount; i++)
+    {
+	extra += STRING_BYTES (myProtocol->orig_client->auth_names[
+	    authIndices[i]]);
+    }
+
+    extra += (myProtocol->orig_client->version_count * 4);
+
+    IceGetHeaderExtra (iceConn, 0, ICE_ProtocolSetup,
+	SIZEOF (iceProtocolSetupMsg), WORD64COUNT (extra),
+	iceProtocolSetupMsg, pMsg, pData);
+
+    setup_sequence = iceConn->send_sequence;
+
+    pMsg->protocolOpcode = myOpcode;
+    pMsg->versionCount = myProtocol->orig_client->version_count;
+    pMsg->authCount = authCount;
+    pMsg->mustAuthenticate = mustAuthenticate;
+
+    STORE_STRING (pData, myProtocol->protocol_name);
+    STORE_STRING (pData, myProtocol->orig_client->vendor);
+    STORE_STRING (pData, myProtocol->orig_client->release);
+
+    for (i = 0; i < authCount; i++)
+    {
+	STORE_STRING (pData, myProtocol->orig_client->auth_names[
+	    authIndices[i]]);
+    }
+
+    for (i = 0; i < myProtocol->orig_client->version_count; i++)
+    {
+	STORE_CARD16 (pData,
+	    myProtocol->orig_client->version_recs[i].major_version);
+	STORE_CARD16 (pData,
+	    myProtocol->orig_client->version_recs[i].minor_version);
+    }
+
+    IceFlush (iceConn);
+
+
+    /*
+     * Process messages until we get a Protocol Reply.
+     */
+
+    replyWait.sequence_of_request = setup_sequence;
+    replyWait.major_opcode_of_request = 0;
+    replyWait.minor_opcode_of_request = ICE_ProtocolSetup;
+    replyWait.reply = (IcePointer) &reply;
+
+    iceConn->protosetup_to_you = (_IceProtoSetupToYouInfo *) malloc (
+	sizeof (_IceProtoSetupToYouInfo));
+    iceConn->protosetup_to_you->my_opcode = myOpcode;
+    iceConn->protosetup_to_you->my_auth_count = authCount;
+    iceConn->protosetup_to_you->auth_active = 0;
+    iceConn->protosetup_to_you->my_auth_indices = authIndices;
+
+    gotReply = False;
+    ioErrorOccured = False;
+    accepted = 0;
+
+    while (!gotReply && !ioErrorOccured)
+    {
+	ioErrorOccured = (IceProcessMessages (
+	    iceConn, &replyWait, &gotReply) == IceProcessMessagesIOError);
+
+	if (ioErrorOccured)
+	{
+	    strncpy (errorStringRet,
+		"IO error occured doing Protocol Setup on connection",
+		errorLength);
+	    return (IceProtocolSetupIOError);
+	}
+	else if (gotReply)
+	{
+	    if (reply.type == ICE_PROTOCOL_REPLY)
+	    {
+		if (reply.protocol_reply.version_index >=
+		    myProtocol->orig_client->version_count)
+		{
+		    strncpy (errorStringRet,
+	                "Got a bad version index in the Protocol Reply",
+		        errorLength);
+
+		    free (reply.protocol_reply.vendor);
+		    free (reply.protocol_reply.release);
+		}
+		else
+		{
+		    versionRec = &(myProtocol->orig_client->version_recs[
+		        reply.protocol_reply.version_index]);
+
+		    accepted = 1;
+		}
+	    }
+	    else /* reply.type == ICE_PROTOCOL_ERROR */
+	    {
+		/* Protocol Setup failed */
+		
+		strncpy (errorStringRet, reply.protocol_error.error_message,
+		    errorLength);
+
+		free (reply.protocol_error.error_message);
+	    }
+
+	    if (iceConn->protosetup_to_you->my_auth_indices)
+		free ((char *) iceConn->protosetup_to_you->my_auth_indices);
+	    free ((char *) iceConn->protosetup_to_you);
+	    iceConn->protosetup_to_you = NULL;
+	}
+    }
+
+    if (accepted)
+    {
+	_IceProcessMsgInfo *process_msg_info;
+
+	*majorVersionRet = versionRec->major_version;
+	*minorVersionRet = versionRec->minor_version;
+	*vendorRet = reply.protocol_reply.vendor;
+	*releaseRet = reply.protocol_reply.release;
+	
+
+	/*
+	 * Increase the reference count for the number of active protocols.
+	 */
+
+	iceConn->proto_ref_count++;
+
+
+	/*
+	 * We may be using a different major opcode for this protocol
+	 * than the other client.  Whenever we get a message, we must
+	 * map to our own major opcode.
+	 */
+
+	hisOpcode = reply.protocol_reply.major_opcode;
+
+	_IceAddOpcodeMapping (iceConn, hisOpcode, myOpcode);
+
+	process_msg_info = &iceConn->process_msg_info[hisOpcode -
+	    iceConn->his_min_opcode];
+
+	process_msg_info->client_data = clientData;
+	process_msg_info->accept_flag = 0;
+
+	process_msg_info->process_msg_proc.orig_client =
+		versionRec->process_msg_proc;
+
+	return (IceProtocolSetupSuccess);
+    }
+    else
+    {
+	return (IceProtocolSetupFailure);
+    }
+}