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/* $Xorg: FSOpenServ.c,v 1.4 2001/02/09 02:03:25 xorgcvs Exp $ */
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/* @(#)FSOpenServ.c 4.1 91/05/02
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* Copyright 1990 Network Computing Devices;
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* Portions Copyright 1987 by Digital Equipment Corporation
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation, and that the names of Network Computing
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* Devices or Digital not be used in advertising or publicity pertaining
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* to distribution of the software without specific, written prior
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* permission. Network Computing Devices or Digital make no representations
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* about the suitability of this software for any purpose. It is provided
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* "as is" without express or implied warranty.
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* NETWORK COMPUTING DEVICES AND DIGITAL DISCLAIM ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES
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* OR DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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/* $XFree86: xc/lib/FS/FSOpenServ.c,v 1.8tsi Exp $ */
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Copyright 1987, 1994, 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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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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* does initial handshake w/ font server
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#include <X11/Xtrans/Xtrans.h>
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static fsReq _dummy_request = {
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static void OutOfMemory ( FSServer *svr, char *setup );
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FSServer *_FSHeadOfServerList = NULL;
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void _FSFreeServerStructure(svr)
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FSfree(svr->server_name);
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void OutOfMemory(svr, setup)
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_FSDisconnectServer(svr->trans_conn);
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_FSFreeServerStructure(svr);
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* connects to a server, makes a FSServer object and returns a pointer
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fsConnClientPrefix client;
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fsConnSetupAccept conn;
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AlternateServer *alts;
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unsigned long setuplength;
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if (server == NULL || *server == '\0') {
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if ((server = getenv("FONTSERVER")) == NULL) {
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return (FSServer *) NULL;
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if ((svr = (FSServer *) FScalloc(1, sizeof(FSServer))) == NULL) {
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return (FSServer *) NULL;
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if ((svr->trans_conn = _FSConnectServer(server)) == NULL) {
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FSfree((char *) svr);
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return (FSServer *) NULL;
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svr->fd = _FSTransGetConnectionNumber (svr->trans_conn);
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if (*(char *) &endian)
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client.byteOrder = 'l';
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client.byteOrder = 'B';
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client.major_version = FS_PROTOCOL;
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client.minor_version = FS_PROTOCOL_MINOR;
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/* XXX -- fix this when we have some auths */
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client.num_auths = 0;
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_FSSendClientPrefix(svr, &client);
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/* see if connection was accepted */
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_FSRead(svr, (char *) &prefix, (long) SIZEOF(fsConnSetup));
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setuplength = prefix.alternate_len << 2;
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if (setuplength > (SIZE_MAX>>2)
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|| (alt_data = (char *)
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(setup = FSmalloc((unsigned) setuplength))) == NULL) {
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FSfree((char *) svr);
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return (FSServer *) NULL;
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_FSRead(svr, (char *) alt_data, setuplength);
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#if SIZE_MAX <= UINT_MAX
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if (prefix.num_alternates > SIZE_MAX / sizeof(AlternateServer)) {
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FSfree((char *) alt_data);
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FSfree((char *) svr);
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return (FSServer *) 0;
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alts = (AlternateServer *)
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FSmalloc(sizeof(AlternateServer) * prefix.num_alternates);
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FSfree((char *) alt_data);
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FSfree((char *) svr);
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return (FSServer *) 0;
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for (i = 0; i < prefix.num_alternates; i++) {
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alts[i].subset = (Bool) *ad++;
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altlen = (int) *ad++;
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alts[i].name = (char *) FSmalloc(altlen + 1);
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FSfree((char *) alts[i].name);
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FSfree((char *) alts);
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FSfree((char *) alt_data);
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FSfree((char *) svr);
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return (FSServer *) 0;
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bcopy(ad, alts[i].name, altlen);
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alts[i].name[altlen] = '\0';
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ad += altlen + ((4 - (altlen + 2)) & 3);
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FSfree((char *) alt_data);
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svr->alternate_servers = alts;
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svr->num_alternates = prefix.num_alternates;
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setuplength = prefix.auth_len << 2;
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if (setuplength > (SIZE_MAX>>2)
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|| (auth_data = (char *)
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(setup = FSmalloc((unsigned) setuplength))) == NULL) {
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FSfree((char *) alts);
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FSfree((char *) svr);
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return (FSServer *) NULL;
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_FSRead(svr, (char *) auth_data, setuplength);
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if (prefix.status != AuthSuccess) {
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fprintf(stderr, "%s: connection to \"%s\" refused by server\r\n%s: ",
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"FSlib", server, "FSlib");
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FSfree((char *) alts);
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FSfree((char *) svr);
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return (FSServer *) NULL;
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_FSRead(svr, (char *) &conn, (long) SIZEOF(fsConnSetupAccept));
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if ((vendor_string = (char *)
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FSmalloc((unsigned) conn.vendor_len + 1)) == NULL) {
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FSfree((char *) auth_data);
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FSfree((char *) alts);
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FSfree((char *) svr);
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return (FSServer *) NULL;
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_FSReadPad(svr, (char *) vendor_string, conn.vendor_len);
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/* move the data into the FSServer struct */
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svr->next = (FSServer *) NULL;
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svr->proto_version = prefix.major_version;
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svr->release = conn.release_number;
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svr->max_request_size = conn.max_request_len;
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svr->event_vec[FS_Error] = _FSUnknownWireEvent;
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svr->event_vec[FS_Reply] = _FSUnknownWireEvent;
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svr->wire_vec[FS_Error] = _FSUnknownNativeEvent;
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svr->wire_vec[FS_Reply] = _FSUnknownNativeEvent;
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for (i = FSLASTEvent; i < 128; i++) {
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svr->event_vec[i] = _FSUnknownWireEvent;
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svr->wire_vec[i] = _FSUnknownNativeEvent;
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svr->resource_id = 1;
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svr->vendor = vendor_string;
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svr->vendor[conn.vendor_len] = '\0';
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svr->vnumber = FS_PROTOCOL;
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svr->last_request_read = 0;
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svr->last_req = (char *) &_dummy_request;
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if ((svr->server_name = FSmalloc((unsigned) (strlen(server) + 1)))
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OutOfMemory(svr, setup);
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return (FSServer *) NULL;
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(void) strcpy(svr->server_name, server);
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/* setup the output buffers */
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if ((svr->bufptr = svr->buffer = FSmalloc(BUFSIZE)) == NULL) {
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OutOfMemory(svr, setup);
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return (FSServer *) NULL;
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svr->bufmax = svr->buffer + BUFSIZE;
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/* set up input event queue */
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svr->head = svr->tail = NULL;
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(void) FSSynchronize(svr, _FSdebug);
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svr->next = _FSHeadOfServerList;
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_FSHeadOfServerList = svr;