xenocara/xserver/hw/xfree86/parser/read.c
matthieu 1a66cad3fb Update to xserver 1.19.5.
Tested by bru@, jsg@ and others
2017-12-08 15:01:59 +00:00

310 lines
11 KiB
C

/*
*
* Copyright (c) 1997 Metro Link Incorporated
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* 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 X CONSORTIUM 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 Metro Link shall not be
* used in advertising or otherwise to promote the sale, use or other dealings
* in this Software without prior written authorization from Metro Link.
*
*/
/*
* Copyright (c) 1997-2003 by The XFree86 Project, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 copyright holder(s)
* and author(s) 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 copyright holder(s) and author(s).
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "xf86Config.h"
#include "xf86Parser.h"
#include "xf86tokens.h"
#include "Configint.h"
static const xf86ConfigSymTabRec TopLevelTab[] = {
{SECTION, "section"},
{-1, ""},
};
#define CLEANUP xf86freeConfig
/*
* This function resolves name references and reports errors if the named
* objects cannot be found.
*/
static int
xf86validateConfig(XF86ConfigPtr p)
{
if (!xf86validateScreen(p))
return FALSE;
if (!xf86validateInput(p))
return FALSE;
if (!xf86validateLayout(p))
return FALSE;
return TRUE;
}
XF86ConfigPtr
xf86readConfigFile(void)
{
int token;
XF86ConfigPtr ptr = NULL;
if ((ptr = xf86allocateConfig()) == NULL) {
return NULL;
}
while ((token = xf86getToken(TopLevelTab)) != EOF_TOKEN) {
switch (token) {
case COMMENT:
ptr->conf_comment = xf86addComment(ptr->conf_comment, xf86_lex_val.str);
break;
case SECTION:
if (xf86getSubToken(&(ptr->conf_comment)) != STRING) {
xf86parseError(QUOTE_MSG, "Section");
CLEANUP(ptr);
return NULL;
}
xf86setSection(xf86_lex_val.str);
if (xf86nameCompare(xf86_lex_val.str, "files") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_RETURN(conf_files, xf86parseFilesSection());
}
else if (xf86nameCompare(xf86_lex_val.str, "serverflags") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_RETURN(conf_flags, xf86parseFlagsSection());
}
else if (xf86nameCompare(xf86_lex_val.str, "pointer") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_LIST(conf_input_lst, xf86parsePointerSection,
XF86ConfInputPtr);
}
else if (xf86nameCompare(xf86_lex_val.str, "videoadaptor") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_LIST(conf_videoadaptor_lst, xf86parseVideoAdaptorSection,
XF86ConfVideoAdaptorPtr);
}
else if (xf86nameCompare(xf86_lex_val.str, "device") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_LIST(conf_device_lst, xf86parseDeviceSection,
XF86ConfDevicePtr);
}
else if (xf86nameCompare(xf86_lex_val.str, "monitor") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_LIST(conf_monitor_lst, xf86parseMonitorSection,
XF86ConfMonitorPtr);
}
else if (xf86nameCompare(xf86_lex_val.str, "modes") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_LIST(conf_modes_lst, xf86parseModesSection,
XF86ConfModesPtr);
}
else if (xf86nameCompare(xf86_lex_val.str, "screen") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_LIST(conf_screen_lst, xf86parseScreenSection,
XF86ConfScreenPtr);
}
else if (xf86nameCompare(xf86_lex_val.str, "inputdevice") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_LIST(conf_input_lst, xf86parseInputSection,
XF86ConfInputPtr);
}
else if (xf86nameCompare(xf86_lex_val.str, "inputclass") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_LIST(conf_inputclass_lst,
xf86parseInputClassSection, XF86ConfInputClassPtr);
}
else if (xf86nameCompare(xf86_lex_val.str, "outputclass") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_LIST(conf_outputclass_lst, xf86parseOutputClassSection,
XF86ConfOutputClassPtr);
}
else if (xf86nameCompare(xf86_lex_val.str, "module") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_RETURN(conf_modules, xf86parseModuleSection());
}
else if (xf86nameCompare(xf86_lex_val.str, "serverlayout") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_LIST(conf_layout_lst, xf86parseLayoutSection,
XF86ConfLayoutPtr);
}
else if (xf86nameCompare(xf86_lex_val.str, "vendor") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_LIST(conf_vendor_lst, xf86parseVendorSection,
XF86ConfVendorPtr);
}
else if (xf86nameCompare(xf86_lex_val.str, "dri") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_RETURN(conf_dri, xf86parseDRISection());
}
else if (xf86nameCompare(xf86_lex_val.str, "extensions") == 0) {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
HANDLE_RETURN(conf_extensions, xf86parseExtensionsSection());
}
else {
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
Error(INVALID_SECTION_MSG, xf86tokenString());
}
break;
default:
free(xf86_lex_val.str);
xf86_lex_val.str = NULL;
Error(INVALID_KEYWORD_MSG, xf86tokenString());
}
}
if (xf86validateConfig(ptr))
return ptr;
else {
CLEANUP(ptr);
return NULL;
}
}
#undef CLEANUP
/*
* adds an item to the end of the linked list. Any record whose first field
* is a GenericListRec can be cast to this type and used with this function.
* A pointer to the head of the list is returned to handle the addition of
* the first item.
*/
GenericListPtr
xf86addListItem(GenericListPtr head, GenericListPtr new)
{
GenericListPtr p = head;
GenericListPtr last = NULL;
while (p) {
last = p;
p = p->next;
}
if (last) {
last->next = new;
return head;
}
else
return new;
}
/*
* Test if one chained list contains the other.
* In this case both list have the same endpoint (provided they don't loop)
*/
int
xf86itemNotSublist(GenericListPtr list_1, GenericListPtr list_2)
{
GenericListPtr p = list_1;
GenericListPtr last_1 = NULL, last_2 = NULL;
while (p) {
last_1 = p;
p = p->next;
}
p = list_2;
while (p) {
last_2 = p;
p = p->next;
}
return (!(last_1 == last_2));
}
/*
* Conditionally allocate config struct, but only allocate it
* if it's not already there. In either event, return the pointer
* to the global config struct.
*/
XF86ConfigPtr xf86allocateConfig(void)
{
if (!xf86configptr) {
xf86configptr = calloc(1, sizeof(XF86ConfigRec));
}
return xf86configptr;
}
void
xf86freeConfig(XF86ConfigPtr p)
{
if (p == NULL)
return;
xf86freeFiles(p->conf_files);
xf86freeModules(p->conf_modules);
xf86freeFlags(p->conf_flags);
xf86freeMonitorList(p->conf_monitor_lst);
xf86freeModesList(p->conf_modes_lst);
xf86freeVideoAdaptorList(p->conf_videoadaptor_lst);
xf86freeDeviceList(p->conf_device_lst);
xf86freeScreenList(p->conf_screen_lst);
xf86freeLayoutList(p->conf_layout_lst);
xf86freeInputList(p->conf_input_lst);
xf86freeVendorList(p->conf_vendor_lst);
xf86freeDRI(p->conf_dri);
xf86freeExtensions(p->conf_extensions);
TestFree(p->conf_comment);
free(p);
}