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-rw-r--r--src/protosetup.c289
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diff --git a/src/protosetup.c b/src/protosetup.c
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+/* $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);
+ }
+}
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