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xserver/hw/xfree86/parser/Flags.c

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/* $XFree86: xc/programs/Xserver/hw/xfree86/parser/Flags.c,v 1.23 2003/08/24 17:37:07 dawes Exp $ */
/*
*
* 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).
*/
/* View/edit this file with tab stops set to 4 */
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "xf86Parser.h"
#include "xf86tokens.h"
#include "Configint.h"
#include <math.h>
extern LexRec val;
static xf86ConfigSymTabRec ServerFlagsTab[] =
{
{ENDSECTION, "endsection"},
{NOTRAPSIGNALS, "notrapsignals"},
{DONTZAP, "dontzap"},
{DONTZOOM, "dontzoom"},
{DISABLEVIDMODE, "disablevidmodeextension"},
{ALLOWNONLOCAL, "allownonlocalxvidtune"},
{DISABLEMODINDEV, "disablemodindev"},
{MODINDEVALLOWNONLOCAL, "allownonlocalmodindev"},
{ALLOWMOUSEOPENFAIL, "allowmouseopenfail"},
{OPTION, "option"},
{BLANKTIME, "blanktime"},
{STANDBYTIME, "standbytime"},
{SUSPENDTIME, "suspendtime"},
{OFFTIME, "offtime"},
{DEFAULTLAYOUT, "defaultserverlayout"},
{-1, ""},
};
#define CLEANUP xf86freeFlags
XF86ConfFlagsPtr
xf86parseFlagsSection (void)
{
int token;
parsePrologue (XF86ConfFlagsPtr, XF86ConfFlagsRec)
while ((token = xf86getToken (ServerFlagsTab)) != ENDSECTION)
{
int hasvalue = FALSE;
int strvalue = FALSE;
int tokentype;
switch (token)
{
case COMMENT:
ptr->flg_comment = xf86addComment(ptr->flg_comment, val.str);
break;
/*
* these old keywords are turned into standard generic options.
* we fall through here on purpose
*/
case DEFAULTLAYOUT:
strvalue = TRUE;
case BLANKTIME:
case STANDBYTIME:
case SUSPENDTIME:
case OFFTIME:
hasvalue = TRUE;
case NOTRAPSIGNALS:
case DONTZAP:
case DONTZOOM:
case DISABLEVIDMODE:
case ALLOWNONLOCAL:
case DISABLEMODINDEV:
case MODINDEVALLOWNONLOCAL:
case ALLOWMOUSEOPENFAIL:
{
int i = 0;
while (ServerFlagsTab[i].token != -1)
{
char *tmp;
if (ServerFlagsTab[i].token == token)
{
char *valstr = NULL;
/* can't use strdup because it calls malloc */
tmp = xf86configStrdup (ServerFlagsTab[i].name);
if (hasvalue)
{
tokentype = xf86getSubToken(&(ptr->flg_comment));
if (strvalue) {
if (tokentype != STRING)
Error (QUOTE_MSG, tmp);
valstr = val.str;
} else {
if (tokentype != NUMBER)
Error (NUMBER_MSG, tmp);
valstr = xf86confmalloc(16);
if (valstr)
sprintf(valstr, "%d", val.num);
}
}
ptr->flg_option_lst = xf86addNewOption
(ptr->flg_option_lst, tmp, valstr);
}
i++;
}
}
break;
case OPTION:
ptr->flg_option_lst = xf86parseOption(ptr->flg_option_lst);
break;
case EOF_TOKEN:
Error (UNEXPECTED_EOF_MSG, NULL);
break;
default:
Error (INVALID_KEYWORD_MSG, xf86tokenString ());
break;
}
}
#ifdef DEBUG
printf ("Flags section parsed\n");
#endif
return ptr;
}
#undef CLEANUP
void
xf86printServerFlagsSection (FILE * f, XF86ConfFlagsPtr flags)
{
XF86OptionPtr p;
if ((!flags) || (!flags->flg_option_lst))
return;
p = flags->flg_option_lst;
fprintf (f, "Section \"ServerFlags\"\n");
if (flags->flg_comment)
fprintf (f, "%s", flags->flg_comment);
xf86printOptionList(f, p, 1);
fprintf (f, "EndSection\n\n");
}
static XF86OptionPtr
addNewOption2 (XF86OptionPtr head, char *name, char *val, int used)
{
XF86OptionPtr new, old = NULL;
/* Don't allow duplicates */
if (head != NULL && (old = xf86findOption(head, name)) != NULL)
new = old;
else {
new = xf86confcalloc (1, sizeof (XF86OptionRec));
new->list.next = NULL;
}
new->opt_name = name;
new->opt_val = val;
new->opt_used = used;
if (old == NULL)
return ((XF86OptionPtr) xf86addListItem ((glp) head, (glp) new));
else
return head;
}
XF86OptionPtr
xf86addNewOption (XF86OptionPtr head, char *name, char *val)
{
return addNewOption2(head, name, val, 0);
}
void
xf86freeFlags (XF86ConfFlagsPtr flags)
{
if (flags == NULL)
return;
xf86optionListFree (flags->flg_option_lst);
TestFree(flags->flg_comment);
xf86conffree (flags);
}
XF86OptionPtr
xf86optionListDup (XF86OptionPtr opt)
{
XF86OptionPtr newopt = NULL;
while (opt)
{
newopt = xf86addNewOption(newopt, xf86configStrdup(opt->opt_name),
xf86configStrdup(opt->opt_val));
newopt->opt_used = opt->opt_used;
if (opt->opt_comment)
newopt->opt_comment = xf86configStrdup(opt->opt_comment);
opt = opt->list.next;
}
return newopt;
}
void
xf86optionListFree (XF86OptionPtr opt)
{
XF86OptionPtr prev;
while (opt)
{
TestFree (opt->opt_name);
TestFree (opt->opt_val);
TestFree (opt->opt_comment);
prev = opt;
opt = opt->list.next;
xf86conffree (prev);
}
}
char *
xf86optionName(XF86OptionPtr opt)
{
if (opt)
return opt->opt_name;
return 0;
}
char *
xf86optionValue(XF86OptionPtr opt)
{
if (opt)
return opt->opt_val;
return 0;
}
XF86OptionPtr
xf86newOption(char *name, char *value)
{
XF86OptionPtr opt;
opt = xf86confcalloc(1, sizeof (XF86OptionRec));
if (!opt)
return NULL;
opt->opt_used = 0;
opt->list.next = 0;
opt->opt_name = name;
opt->opt_val = value;
return opt;
}
XF86OptionPtr
xf86nextOption(XF86OptionPtr list)
{
if (!list)
return NULL;
return list->list.next;
}
/*
* this function searches the given option list for the named option and
* returns a pointer to the option rec if found. If not found, it returns
* NULL
*/
XF86OptionPtr
xf86findOption (XF86OptionPtr list, const char *name)
{
while (list)
{
if (xf86nameCompare (list->opt_name, name) == 0)
return (list);
list = list->list.next;
}
return (NULL);
}
/*
* this function searches the given option list for the named option. If
* found and the option has a parameter, a pointer to the parameter is
* returned. If the option does not have a parameter an empty string is
* returned. If the option is not found, a NULL is returned.
*/
char *
xf86findOptionValue (XF86OptionPtr list, const char *name)
{
XF86OptionPtr p = xf86findOption (list, name);
if (p)
{
if (p->opt_val)
return (p->opt_val);
else
return "";
}
return (NULL);
}
XF86OptionPtr
xf86optionListCreate( const char **options, int count, int used )
{
XF86OptionPtr p = NULL;
char *t1, *t2;
int i;
if (count == -1)
{
for (count = 0; options[count]; count++)
;
}
if( (count % 2) != 0 )
{
fprintf( stderr, "xf86optionListCreate: count must be an even number.\n" );
return (NULL);
}
for (i = 0; i < count; i += 2)
{
/* can't use strdup because it calls malloc */
t1 = xf86confmalloc (sizeof (char) *
(strlen (options[i]) + 1));
strcpy (t1, options[i]);
t2 = xf86confmalloc (sizeof (char) *
(strlen (options[i + 1]) + 1));
strcpy (t2, options[i + 1]);
p = addNewOption2 (p, t1, t2, used);
}
return (p);
}
/* the 2 given lists are merged. If an option with the same name is present in
* both, the option from the user list - specified in the second argument -
* is used. The end result is a single valid list of options. Duplicates
* are freed, and the original lists are no longer guaranteed to be complete.
*/
XF86OptionPtr
xf86optionListMerge (XF86OptionPtr head, XF86OptionPtr tail)
{
XF86OptionPtr a, b, ap = NULL, bp = NULL;
a = tail;
b = head;
while (tail && b) {
if (xf86nameCompare (a->opt_name, b->opt_name) == 0) {
if (b == head)
head = a;
else
bp->list.next = a;
if (a == tail)
tail = a->list.next;
else
ap->list.next = a->list.next;
a->list.next = b->list.next;
b->list.next = NULL;
xf86optionListFree (b);
b = a->list.next;
bp = a;
a = tail;
ap = NULL;
} else {
ap = a;
if (!(a = a->list.next)) {
a = tail;
bp = b;
b = b->list.next;
ap = NULL;
}
}
}
if (head) {
for (a = head; a->list.next; a = a->list.next)
;
a->list.next = tail;
} else
head = tail;
return (head);
}
char *
xf86uLongToString(unsigned long i)
{
char *s;
int l;
l = (int)(ceil(log10((double)i) + 2.5));
s = xf86confmalloc(l);
if (!s)
return NULL;
sprintf(s, "%lu", i);
return s;
}
void
xf86debugListOptions(XF86OptionPtr Options)
{
while (Options) {
ErrorF("Option: %s Value: %s\n",Options->opt_name,Options->opt_val);
Options = Options->list.next;
}
}
XF86OptionPtr
xf86parseOption(XF86OptionPtr head)
{
XF86OptionPtr option, cnew, old;
char *name, *comment = NULL;
int token;
if ((token = xf86getSubToken(&comment)) != STRING) {
xf86parseError(BAD_OPTION_MSG, NULL);
if (comment)
xf86conffree(comment);
return (head);
}
name = val.str;
if ((token = xf86getSubToken(&comment)) == STRING) {
option = xf86newOption(name, val.str);
option->opt_comment = comment;
if ((token = xf86getToken(NULL)) == COMMENT)
option->opt_comment = xf86addComment(option->opt_comment, val.str);
else
xf86unGetToken(token);
}
else {
option = xf86newOption(name, NULL);
option->opt_comment = comment;
if (token == COMMENT)
option->opt_comment = xf86addComment(option->opt_comment, val.str);
else
xf86unGetToken(token);
}
old = NULL;
/* Don't allow duplicates */
if (head != NULL && (old = xf86findOption(head, name)) != NULL) {
cnew = old;
xf86conffree(option->opt_name);
TestFree(option->opt_val);
TestFree(option->opt_comment);
xf86conffree(option);
}
else
cnew = option;
if (old == NULL)
return ((XF86OptionPtr)xf86addListItem((glp)head, (glp)cnew));
return (head);
}
void
xf86printOptionList(FILE *fp, XF86OptionPtr list, int tabs)
{
int i;
if (!list)
return;
while (list) {
for (i = 0; i < tabs; i++)
fputc('\t', fp);
if (list->opt_val)
fprintf(fp, "Option \"%s\" \"%s\"", list->opt_name, list->opt_val);
else
fprintf(fp, "Option \"%s\"", list->opt_name);
if (list->opt_comment)
fprintf(fp, "%s", list->opt_comment);
else
fputc('\n', fp);
list = list->list.next;
}
}
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