414 lines
11 KiB
C
414 lines
11 KiB
C
/************************************************************
|
|
Copyright (c) 1994 by Silicon Graphics Computer Systems, Inc.
|
|
|
|
Permission to use, copy, modify, and distribute this
|
|
software and its documentation for any purpose and without
|
|
fee is hereby granted, provided that the above copyright
|
|
notice appear in all copies and that both that copyright
|
|
notice and this permission notice appear in supporting
|
|
documentation, and that the name of Silicon Graphics not be
|
|
used in advertising or publicity pertaining to distribution
|
|
of the software without specific prior written permission.
|
|
Silicon Graphics makes no representation about the suitability
|
|
of this software for any purpose. It is provided "as is"
|
|
without any express or implied warranty.
|
|
|
|
SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
|
|
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
|
|
AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
|
|
GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
|
|
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
|
DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
|
|
OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
|
|
THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
********************************************************/
|
|
|
|
#include <X11/Xlib.h>
|
|
#include <X11/XKBlib.h>
|
|
|
|
#define DEBUG_VAR debugFlags
|
|
#include "utils.h"
|
|
#include <stdlib.h>
|
|
#include <X11/extensions/XKM.h>
|
|
#include "xkbpath.h"
|
|
|
|
#ifndef PATH_MAX
|
|
#define PATH_MAX 1024
|
|
#endif
|
|
|
|
#define PATH_CHUNK 8 /* initial szPath */
|
|
|
|
static Bool noDefaultPath = False;
|
|
static int szPath; /* number of entries allocated for includePath */
|
|
static int nPathEntries; /* number of actual entries in includePath */
|
|
static char **includePath; /* Holds all directories we might be including data from */
|
|
|
|
/**
|
|
* Extract the first token from an include statement.
|
|
* @param str_inout Input statement, modified in-place. Can be passed in
|
|
* repeatedly. If str_inout is NULL, the parsing has completed.
|
|
* @param file_rtrn Set to the include file to be used.
|
|
* @param map_rtrn Set to whatever comes after ), if any.
|
|
* @param nextop_rtrn Set to the next operation in the complete statement.
|
|
* @param extra_data Set to the string between ( and ), if any.
|
|
*
|
|
* @return True if parsing was succcessful, False for an illegal string.
|
|
*
|
|
* Example: "evdev+aliases(qwerty)"
|
|
* str_inout = aliases(qwerty)
|
|
* nextop_retrn = +
|
|
* extra_data = NULL
|
|
* file_rtrn = evdev
|
|
* map_rtrn = NULL
|
|
*
|
|
* 2nd run with "aliases(qwerty)"
|
|
* str_inout = NULL
|
|
* file_rtrn = aliases
|
|
* map_rtrn = qwerty
|
|
* extra_data = NULL
|
|
* nextop_retrn = ""
|
|
*
|
|
*/
|
|
Bool
|
|
XkbParseIncludeMap(char **str_inout, char **file_rtrn, char **map_rtrn,
|
|
char *nextop_rtrn, char **extra_data)
|
|
{
|
|
char *tmp, *str, *next;
|
|
|
|
str = *str_inout;
|
|
if ((*str == '+') || (*str == '|'))
|
|
{
|
|
*file_rtrn = *map_rtrn = NULL;
|
|
*nextop_rtrn = *str;
|
|
next = str + 1;
|
|
}
|
|
else if (*str == '%')
|
|
{
|
|
*file_rtrn = *map_rtrn = NULL;
|
|
*nextop_rtrn = str[1];
|
|
next = str + 2;
|
|
}
|
|
else
|
|
{
|
|
/* search for tokens inside the string */
|
|
next = strpbrk(str, "|+");
|
|
if (next)
|
|
{
|
|
/* set nextop_rtrn to \0, next to next character */
|
|
*nextop_rtrn = *next;
|
|
*next++ = '\0';
|
|
}
|
|
else
|
|
{
|
|
*nextop_rtrn = '\0';
|
|
next = NULL;
|
|
}
|
|
/* search for :, store result in extra_data */
|
|
tmp = strchr(str, ':');
|
|
if (tmp != NULL)
|
|
{
|
|
*tmp++ = '\0';
|
|
*extra_data = uStringDup(tmp);
|
|
}
|
|
else
|
|
{
|
|
*extra_data = NULL;
|
|
}
|
|
tmp = strchr(str, '(');
|
|
if (tmp == NULL)
|
|
{
|
|
*file_rtrn = uStringDup(str);
|
|
*map_rtrn = NULL;
|
|
}
|
|
else if (str[0] == '(')
|
|
{
|
|
uFree(*extra_data);
|
|
return False;
|
|
}
|
|
else
|
|
{
|
|
*tmp++ = '\0';
|
|
*file_rtrn = uStringDup(str);
|
|
str = tmp;
|
|
tmp = strchr(str, ')');
|
|
if ((tmp == NULL) || (tmp[1] != '\0'))
|
|
{
|
|
uFree(*file_rtrn);
|
|
uFree(*extra_data);
|
|
return False;
|
|
}
|
|
*tmp++ = '\0';
|
|
*map_rtrn = uStringDup(str);
|
|
}
|
|
}
|
|
if (*nextop_rtrn == '\0')
|
|
*str_inout = NULL;
|
|
else if ((*nextop_rtrn == '|') || (*nextop_rtrn == '+'))
|
|
*str_inout = next;
|
|
else
|
|
return False;
|
|
return True;
|
|
}
|
|
|
|
/**
|
|
* Init memory for include paths.
|
|
*/
|
|
Bool
|
|
XkbInitIncludePath(void)
|
|
{
|
|
szPath = PATH_CHUNK;
|
|
includePath = (char **) calloc(szPath, sizeof(char *));
|
|
if (includePath == NULL)
|
|
return False;
|
|
return True;
|
|
}
|
|
|
|
void
|
|
XkbAddDefaultDirectoriesToPath(void)
|
|
{
|
|
if (noDefaultPath)
|
|
return;
|
|
XkbAddDirectoryToPath(DFLT_XKB_CONFIG_ROOT);
|
|
}
|
|
|
|
/**
|
|
* Remove all entries from the global includePath.
|
|
*/
|
|
void
|
|
XkbClearIncludePath(void)
|
|
{
|
|
register int i;
|
|
|
|
if (szPath > 0)
|
|
{
|
|
for (i = 0; i < nPathEntries; i++)
|
|
{
|
|
if (includePath[i] != NULL)
|
|
{
|
|
uFree(includePath[i]);
|
|
includePath[i] = NULL;
|
|
}
|
|
}
|
|
nPathEntries = 0;
|
|
}
|
|
noDefaultPath = True;
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* Add the given path to the global includePath variable.
|
|
* If dir is NULL, the includePath is emptied.
|
|
*/
|
|
Bool
|
|
XkbAddDirectoryToPath(const char *dir)
|
|
{
|
|
int len;
|
|
if ((dir == NULL) || (dir[0] == '\0'))
|
|
{
|
|
XkbClearIncludePath();
|
|
return True;
|
|
}
|
|
len = strlen(dir);
|
|
if (len + 2 >= PATH_MAX)
|
|
{ /* allow for '/' and at least one character */
|
|
ERROR2("Path entry (%s) too long (maxiumum length is %d)\n",
|
|
dir, PATH_MAX - 3);
|
|
return False;
|
|
}
|
|
if (nPathEntries >= szPath)
|
|
{
|
|
szPath += PATH_CHUNK;
|
|
includePath = (char **) realloc(includePath, szPath * sizeof(char *));
|
|
if (includePath == NULL)
|
|
{
|
|
WSGO("Allocation failed (includePath)\n");
|
|
return False;
|
|
}
|
|
}
|
|
includePath[nPathEntries] =
|
|
(char *) calloc(strlen(dir) + 1, sizeof(char));
|
|
if (includePath[nPathEntries] == NULL)
|
|
{
|
|
WSGO1("Allocation failed (includePath[%d])\n", nPathEntries);
|
|
return False;
|
|
}
|
|
strcpy(includePath[nPathEntries++], dir);
|
|
return True;
|
|
}
|
|
|
|
/***====================================================================***/
|
|
|
|
/**
|
|
* Return the xkb directory based on the type.
|
|
* Do not free the memory returned by this function.
|
|
*/
|
|
char *
|
|
XkbDirectoryForInclude(unsigned type)
|
|
{
|
|
static char buf[32];
|
|
|
|
switch (type)
|
|
{
|
|
case XkmSemanticsFile:
|
|
strcpy(buf, "semantics");
|
|
break;
|
|
case XkmLayoutFile:
|
|
strcpy(buf, "layout");
|
|
break;
|
|
case XkmKeymapFile:
|
|
strcpy(buf, "keymap");
|
|
break;
|
|
case XkmKeyNamesIndex:
|
|
strcpy(buf, "keycodes");
|
|
break;
|
|
case XkmTypesIndex:
|
|
strcpy(buf, "types");
|
|
break;
|
|
case XkmSymbolsIndex:
|
|
strcpy(buf, "symbols");
|
|
break;
|
|
case XkmCompatMapIndex:
|
|
strcpy(buf, "compat");
|
|
break;
|
|
case XkmGeometryFile:
|
|
case XkmGeometryIndex:
|
|
strcpy(buf, "geometry");
|
|
break;
|
|
default:
|
|
strcpy(buf, "");
|
|
break;
|
|
}
|
|
return buf;
|
|
}
|
|
|
|
/***====================================================================***/
|
|
|
|
typedef struct _FileCacheEntry
|
|
{
|
|
char *name;
|
|
unsigned type;
|
|
char *path;
|
|
void *data;
|
|
struct _FileCacheEntry *next;
|
|
} FileCacheEntry;
|
|
static FileCacheEntry *fileCache;
|
|
|
|
/**
|
|
* Add the file with the given name to the internal cache to avoid opening and
|
|
* parsing the file multiple times. If a cache entry for the same name + type
|
|
* is already present, the entry is overwritten and the data belonging to the
|
|
* previous entry is returned.
|
|
*
|
|
* @parameter name The name of the file (e.g. evdev).
|
|
* @parameter type Type of the file (XkbTypesIdx, ... or XkbSemanticsFile, ...)
|
|
* @parameter path The full path to the file.
|
|
* @parameter data Already parsed data.
|
|
*
|
|
* @return The data from the overwritten file or NULL.
|
|
*/
|
|
void *
|
|
XkbAddFileToCache(char *name, unsigned type, char *path, void *data)
|
|
{
|
|
FileCacheEntry *entry;
|
|
|
|
for (entry = fileCache; entry != NULL; entry = entry->next)
|
|
{
|
|
if ((type == entry->type) && (uStringEqual(name, entry->name)))
|
|
{
|
|
void *old = entry->data;
|
|
WSGO2("Replacing file cache entry (%s/%d)\n", name, type);
|
|
entry->path = path;
|
|
entry->data = data;
|
|
return old;
|
|
}
|
|
}
|
|
entry = uTypedAlloc(FileCacheEntry);
|
|
if (entry != NULL)
|
|
{
|
|
entry->name = name;
|
|
entry->type = type;
|
|
entry->path = path;
|
|
entry->data = data;
|
|
entry->next = fileCache;
|
|
fileCache = entry;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Search for the given name + type in the cache.
|
|
*
|
|
* @parameter name The name of the file (e.g. evdev).
|
|
* @parameter type Type of the file (XkbTypesIdx, ... or XkbSemanticsFile, ...)
|
|
* @parameter pathRtrn Set to the full path of the given entry.
|
|
*
|
|
* @return the data from the cache entry or NULL if no matching entry was found.
|
|
*/
|
|
void *
|
|
XkbFindFileInCache(char *name, unsigned type, char **pathRtrn)
|
|
{
|
|
FileCacheEntry *entry;
|
|
|
|
for (entry = fileCache; entry != NULL; entry = entry->next)
|
|
{
|
|
if ((type == entry->type) && (uStringEqual(name, entry->name)))
|
|
{
|
|
*pathRtrn = entry->path;
|
|
return entry->data;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/***====================================================================***/
|
|
|
|
/**
|
|
* Search for the given file name in the include directories.
|
|
*
|
|
* @param type one of XkbTypesIndex, XkbCompatMapIndex, ..., or
|
|
* XkbSemanticsFile, XkmKeymapFile, ...
|
|
* @param pathReturn is set to the full path of the file if found.
|
|
*
|
|
* @return an FD to the file or NULL. If NULL is returned, the value of
|
|
* pathRtrn is undefined.
|
|
*/
|
|
FILE *
|
|
XkbFindFileInPath(char *name, unsigned type, char **pathRtrn)
|
|
{
|
|
register int i;
|
|
FILE *file = NULL;
|
|
int nameLen, typeLen, pathLen;
|
|
char buf[PATH_MAX], *typeDir;
|
|
|
|
typeDir = XkbDirectoryForInclude(type);
|
|
nameLen = strlen(name);
|
|
typeLen = strlen(typeDir);
|
|
for (i = 0; i < nPathEntries; i++)
|
|
{
|
|
pathLen = strlen(includePath[i]);
|
|
if (typeLen < 1)
|
|
continue;
|
|
|
|
if ((nameLen + typeLen + pathLen + 2) >= PATH_MAX)
|
|
{
|
|
ERROR3("File name (%s/%s/%s) too long\n", includePath[i],
|
|
typeDir, name);
|
|
ACTION("Ignored\n");
|
|
continue;
|
|
}
|
|
snprintf(buf, sizeof(buf), "%s/%s/%s", includePath[i], typeDir, name);
|
|
file = fopen(buf, "r");
|
|
if (file != NULL)
|
|
break;
|
|
}
|
|
|
|
if ((file != NULL) && (pathRtrn != NULL))
|
|
{
|
|
*pathRtrn = (char *) calloc(strlen(buf) + 1, sizeof(char));
|
|
if (*pathRtrn != NULL)
|
|
strcpy(*pathRtrn, buf);
|
|
}
|
|
return file;
|
|
}
|