300 lines
8.6 KiB
C
300 lines
8.6 KiB
C
/*
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* font server extensions
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*/
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/*
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Copyright 1990, 1991, 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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* Copyright 1990, 1991 Network Computing Devices;
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* Portions Copyright 1987 by Digital Equipment Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that 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, and that the names of Network Computing Devices, or Digital
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* not be used in advertising or publicity pertaining to distribution
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* of the software without specific, written prior permission.
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*
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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
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
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* THIS SOFTWARE.
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*/
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#include "config.h"
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#include <X11/fonts/FSproto.h>
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#include "misc.h"
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#include "clientstr.h"
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#include "extentst.h"
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#include "difs.h"
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#include "dispatch.h"
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#define EXTENSION_BASE 128
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#define EXTENSION_EVENT_BASE 64
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#define LAST_EVENT 128
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#define LAST_ERROR 255
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static ExtensionEntry **extensions = (ExtensionEntry **) NULL;
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static int lastEvent = EXTENSION_EVENT_BASE;
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static int lastError = FirstExtensionError;
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static int NumExtensions = 0;
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ExtensionEntry *
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AddExtension(
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char *name,
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int num_events,
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int num_errors,
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int (*main_proc) (ClientPtr),
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int (*smain_proc) (ClientPtr),
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void (*closedown_proc) (struct _ExtensionEntry *),
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unsigned short (*minorop_proc) (ClientPtr))
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{
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int i;
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ExtensionEntry *ext,
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**newexts;
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if (!main_proc || !smain_proc || !closedown_proc || !minorop_proc)
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return ((ExtensionEntry *) 0);
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if ((lastEvent + num_events > LAST_EVENT) ||
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(unsigned) (lastError + num_errors > LAST_ERROR))
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return ((ExtensionEntry *) 0);
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ext = (ExtensionEntry *) fsalloc(sizeof(ExtensionEntry));
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if (!ext)
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return ((ExtensionEntry *) 0);
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ext->name = (char *) fsalloc(strlen(name) + 1);
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ext->num_aliases = 0;
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ext->aliases = (char **) NULL;
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if (!ext->name) {
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fsfree(ext);
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return ((ExtensionEntry *) 0);
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}
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strcpy(ext->name, name);
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i = NumExtensions;
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newexts = (ExtensionEntry **) fsrealloc(extensions,
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(i + 1) * sizeof(ExtensionEntry *));
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if (!newexts) {
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fsfree(ext->name);
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fsfree(ext);
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return ((ExtensionEntry *) 0);
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}
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NumExtensions++;
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extensions = newexts;
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extensions[i] = ext;
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ext->index = i;
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ext->base = i + EXTENSION_BASE;
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ext->CloseDown = closedown_proc;
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ext->MinorOpcode = minorop_proc;
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ProcVector[i + EXTENSION_BASE] = main_proc;
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SwappedProcVector[i + EXTENSION_BASE] = smain_proc;
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if (num_events) {
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ext->eventBase = lastEvent;
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ext->eventLast = lastEvent + num_events;
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lastEvent += num_events;
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} else {
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ext->eventBase = 0;
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ext->eventLast = 0;
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}
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if (num_errors) {
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ext->errorBase = lastError;
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ext->errorLast = lastError + num_errors;
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lastError += num_errors;
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} else {
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ext->errorBase = 0;
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ext->errorLast = 0;
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}
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return ext;
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}
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Bool
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AddExtensionAlias(char *alias, ExtensionEntry *ext)
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{
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char *name;
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char **aliases;
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aliases = (char **) fsrealloc(ext->aliases,
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(ext->num_aliases + 1) * sizeof(char *));
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if (!aliases)
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return FALSE;
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ext->aliases = aliases;
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name = (char *) fsalloc(strlen(alias) + 1);
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if (!name)
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return FALSE;
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strcpy(name, alias);
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ext->aliases[ext->num_aliases++] = name;
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return TRUE;
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}
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unsigned short
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StandardMinorOpcode(ClientPtr client)
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{
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return ((fsReq *) client->requestBuffer)->data;
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}
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unsigned short
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MinorOpcodeOfRequest(ClientPtr client)
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{
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unsigned char major;
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major = ((fsReq *) client->requestBuffer)->reqType;
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if (major < EXTENSION_BASE)
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return 0;
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major -= EXTENSION_BASE;
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if (major >= NumExtensions)
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return 0;
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return (*extensions[major]->MinorOpcode) (client);
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}
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void
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CloseDownExtensions(void)
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{
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int i,
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j;
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for (i = NumExtensions - 1; i >= 0; i--) {
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(*extensions[i]->CloseDown) (extensions[i]);
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NumExtensions = i;
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fsfree(extensions[i]->name);
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for (j = extensions[i]->num_aliases; --j >= 0;)
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fsfree(extensions[i]->aliases[j]);
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fsfree(extensions[i]->aliases);
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fsfree(extensions[i]);
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}
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fsfree(extensions);
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extensions = (ExtensionEntry **) NULL;
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lastEvent = EXTENSION_EVENT_BASE;
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lastError = FirstExtensionError;
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}
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void
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InitExtensions(void)
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{
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}
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int
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ProcQueryExtension(ClientPtr client)
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{
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fsQueryExtensionReply reply = {
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.type = FS_Reply,
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.sequenceNumber = client->sequence,
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.length = SIZEOF(fsQueryExtensionReply) >> 2,
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.major_opcode = 0
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};
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int i,
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j;
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REQUEST(fsQueryExtensionReq);
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REQUEST_AT_LEAST_SIZE(fsQueryExtensionReq);
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if (!NumExtensions) {
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reply.present = fsFalse;
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} else {
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for (i = 0; i < NumExtensions; i++) {
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if ((strlen(extensions[i]->name) == stuff->nbytes) &&
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!strncmp((char *) &stuff[1], extensions[i]->name,
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(int) stuff->nbytes))
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break;
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for (j = extensions[i]->num_aliases; --j >= 0;) {
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if ((strlen(extensions[i]->aliases[j]) == stuff->nbytes) &&
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!strncmp((char *) &stuff[1], extensions[i]->aliases[j],
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(int) stuff->nbytes))
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break;
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}
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if (j >= 0)
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break;
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}
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if (i == NumExtensions) {
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reply.present = fsFalse;
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} else {
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reply.present = fsTrue;
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reply.major_opcode = extensions[i]->base;
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reply.first_event = extensions[i]->eventBase;
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reply.first_error = extensions[i]->errorBase;
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}
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}
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WriteReplyToClient(client, SIZEOF(fsQueryExtensionReply), &reply);
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return client->noClientException;
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}
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int
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ProcListExtensions(ClientPtr client)
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{
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fsListExtensionsReply reply = {
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.type = FS_Reply,
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.nExtensions = NumExtensions,
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.sequenceNumber = client->sequence,
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.length = SIZEOF(fsListExtensionsReply) >> 2
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};
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char *bufptr,
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*buffer = NULL;
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int total_length = 0;
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REQUEST(fsListExtensionsReq);
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REQUEST_SIZE_MATCH(fsListExtensionsReq);
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if (NumExtensions) {
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int i,
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j;
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for (i = 0; i < NumExtensions; i++) {
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total_length += strlen(extensions[i]->name) + 1;
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reply.nExtensions += extensions[i]->num_aliases;
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for (j = extensions[i]->num_aliases; --j >= 0;)
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total_length += strlen(extensions[i]->aliases[j]) + 1;
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}
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reply.length += (total_length + 3) >> 2;
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buffer = bufptr = (char *) ALLOCATE_LOCAL(total_length);
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if (!buffer) {
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SendErrToClient(client, FSBadAlloc, NULL);
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return FSBadAlloc;
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}
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for (i = 0; i < NumExtensions; i++) {
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int len;
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*bufptr++ = len = strlen(extensions[i]->name);
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memmove( bufptr, extensions[i]->name, len);
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bufptr += len;
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for (j = extensions[i]->num_aliases; --j >= 0;) {
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*bufptr++ = len = strlen(extensions[i]->aliases[j]);
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memmove( bufptr, extensions[i]->aliases[j], len);
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bufptr += len;
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}
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}
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}
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WriteReplyToClient(client, SIZEOF(fsListExtensionsReply), &reply);
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if (total_length) {
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WriteToClient(client, total_length, buffer);
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DEALLOCATE_LOCAL(buffer);
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}
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return client->noClientException;
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}
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