333 lines
7.7 KiB
C
333 lines
7.7 KiB
C
/* $Xorg: xkbpath.c,v 1.3 2000/08/17 19:54:34 cpqbld Exp $ */
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/************************************************************
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Copyright (c) 1994 by Silicon Graphics Computer Systems, Inc.
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Permission to use, copy, modify, and distribute this
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software and its documentation for any purpose and without
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fee is hereby granted, provided that the above copyright
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notice appear in all copies and that both that copyright
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notice and this permission notice appear in supporting
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documentation, and that the name of Silicon Graphics not be
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used in advertising or publicity pertaining to distribution
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of the software without specific prior written permission.
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Silicon Graphics makes no representation about the suitability
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of this software for any purpose. It is provided "as is"
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without any express or implied warranty.
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SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
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GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
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THE USE OR PERFORMANCE OF THIS SOFTWARE.
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********************************************************/
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/* $XFree86: xc/programs/xkbcomp/xkbpath.c,v 3.7 2002/06/05 00:00:38 dawes Exp $ */
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#include <X11/Xlib.h>
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#include <X11/XKBlib.h>
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#define DEBUG_VAR_NOT_LOCAL
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#define DEBUG_VAR debugFlags
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#include "utils.h"
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#include <stdlib.h>
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#include <X11/extensions/XKM.h>
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#include "xkbpath.h"
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#ifndef DFLT_XKB_CONFIG_ROOT
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#define DFLT_XKB_CONFIG_ROOT "/usr/lib/X11/xkb"
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#endif
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#ifndef PATH_MAX
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#define PATH_MAX 1024
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#endif
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#define PATH_CHUNK 8
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static Bool noDefaultPath = False;
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static int longestPath;
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static int szPath;
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static int nPathEntries;
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static char ** includePath;
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Bool
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XkbParseIncludeMap(char **str_inout,char **file_rtrn,char **map_rtrn,
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char *nextop_rtrn, char **extra_data)
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{
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char *tmp,*str,*next;
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str= *str_inout;
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if ((*str=='+')||(*str=='|')) {
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*file_rtrn= *map_rtrn= NULL;
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*nextop_rtrn= *str;
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next= str+1;
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}
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else if (*str=='%') {
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*file_rtrn= *map_rtrn= NULL;
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*nextop_rtrn= str[1];
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next= str+2;
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}
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else {
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next= strpbrk(str,"|+");
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if (next) {
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*nextop_rtrn= *next;
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*next++= '\0';
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}
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else {
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*nextop_rtrn= '\0';
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next= NULL;
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}
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tmp= strchr(str,':');
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if (tmp != NULL) {
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*tmp++ = '\0';
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*extra_data = uStringDup(tmp);
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}
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else {
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*extra_data = NULL;
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}
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tmp= strchr(str,'(');
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if (tmp==NULL) {
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*file_rtrn= uStringDup(str);
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*map_rtrn= NULL;
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}
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else if (str[0]=='(') {
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uFree(*extra_data);
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return False;
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}
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else {
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*tmp++= '\0';
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*file_rtrn= uStringDup(str);
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str= tmp;
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tmp= strchr(str,')');
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if ((tmp==NULL)||(tmp[1]!='\0')) {
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uFree(*file_rtrn);
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uFree(*extra_data);
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return False;
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}
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*tmp++= '\0';
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*map_rtrn= uStringDup(str);
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}
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}
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if (*nextop_rtrn=='\0')
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*str_inout= NULL;
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else if ((*nextop_rtrn=='|')||(*nextop_rtrn=='+'))
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*str_inout= next;
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else return False;
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return True;
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}
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Bool
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XkbInitIncludePath(void)
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{
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szPath= PATH_CHUNK;
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includePath= (char **)calloc(szPath,sizeof(char *));
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if (includePath==NULL)
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return False;
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return True;
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}
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void
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XkbAddDefaultDirectoriesToPath(void)
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{
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if (noDefaultPath)
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return;
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XkbAddDirectoryToPath(".");
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XkbAddDirectoryToPath(DFLT_XKB_CONFIG_ROOT);
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}
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void
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XkbClearIncludePath(void)
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{
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register int i;
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if (szPath>0) {
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for (i=0;i<nPathEntries;i++) {
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if (includePath[i]!=NULL) {
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uFree(includePath[i]);
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includePath[i]= NULL;
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}
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}
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nPathEntries= 0;
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longestPath= 0;
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}
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noDefaultPath = True;
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return;
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}
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Bool
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XkbAddDirectoryToPath(char *dir)
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{
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int len;
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if ((dir==NULL)||(dir[0]=='\0')) {
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XkbClearIncludePath();
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return True;
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}
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#ifdef __UNIXOS2__
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dir = (char*)__XOS2RedirRoot(dir);
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#endif
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len= strlen(dir);
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if (len+2>=PATH_MAX) { /* allow for '/' and at least one character */
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ERROR2("Path entry (%s) too long (maxiumum length is %d)\n",
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dir,PATH_MAX-3);
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return False;
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}
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if (len>longestPath)
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longestPath= len;
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if (nPathEntries>=szPath) {
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szPath+= PATH_CHUNK;
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includePath= (char **)realloc(includePath,szPath*sizeof(char *));
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if (includePath==NULL) {
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WSGO("Allocation failed (includePath)\n");
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return False;
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}
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}
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includePath[nPathEntries]= (char *)calloc(strlen(dir)+1,sizeof(char));
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if (includePath[nPathEntries]==NULL) {
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WSGO1("Allocation failed (includePath[%d])\n",nPathEntries);
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return False;
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}
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strcpy(includePath[nPathEntries++],dir);
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return True;
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}
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/***====================================================================***/
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char *
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XkbDirectoryForInclude(unsigned type)
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{
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static char buf[32];
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switch (type) {
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case XkmSemanticsFile:
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strcpy(buf,"semantics");
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break;
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case XkmLayoutFile:
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strcpy(buf,"layout");
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break;
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case XkmKeymapFile:
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strcpy(buf,"keymap");
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break;
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case XkmKeyNamesIndex:
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strcpy(buf,"keycodes");
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break;
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case XkmTypesIndex:
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strcpy(buf,"types");
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break;
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case XkmSymbolsIndex:
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strcpy(buf,"symbols");
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break;
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case XkmCompatMapIndex:
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strcpy(buf,"compat");
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break;
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case XkmGeometryFile:
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case XkmGeometryIndex:
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strcpy(buf,"geometry");
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break;
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default:
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strcpy(buf,"");
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break;
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}
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return buf;
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}
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/***====================================================================***/
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typedef struct _FileCacheEntry {
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char * name;
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unsigned type;
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char * path;
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void * data;
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struct _FileCacheEntry * next;
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} FileCacheEntry;
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static FileCacheEntry *fileCache;
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void *
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XkbAddFileToCache(char *name,unsigned type,char *path,void *data)
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{
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FileCacheEntry *entry;
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for (entry=fileCache;entry!=NULL;entry=entry->next) {
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if ((type==entry->type)&&(uStringEqual(name,entry->name))) {
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void *old= entry->data;
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WSGO2("Replacing file cache entry (%s/%d)\n",name,type);
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entry->path= path;
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entry->data= data;
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return old;
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}
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}
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entry= uTypedAlloc(FileCacheEntry);
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if (entry!=NULL) {
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entry->name= name;
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entry->type= type;
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entry->path= path;
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entry->data= data;
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entry->next= fileCache;
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fileCache= entry;
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}
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return NULL;
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}
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void *
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XkbFindFileInCache(char *name,unsigned type,char **pathRtrn)
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{
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FileCacheEntry *entry;
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for (entry=fileCache;entry!=NULL;entry=entry->next) {
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if ((type==entry->type)&&(uStringEqual(name,entry->name))) {
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*pathRtrn= entry->path;
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return entry->data;
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}
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}
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return NULL;
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}
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/***====================================================================***/
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FILE *
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XkbFindFileInPath(char *name,unsigned type,char **pathRtrn)
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{
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register int i;
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FILE *file= NULL;
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int nameLen,typeLen,pathLen;
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char buf[PATH_MAX],*typeDir;
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typeDir= XkbDirectoryForInclude(type);
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nameLen= strlen(name);
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typeLen= strlen(typeDir);
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for (i=0;i<nPathEntries;i++) {
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pathLen= strlen(includePath[i]);
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if ((nameLen+pathLen+1)>=PATH_MAX) {
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ERROR2("File name (%s/%s) too long\n",includePath[i],name);
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ACTION("Ignored\n");
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continue;
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}
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sprintf(buf,"%s/%s",includePath[i],name);
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file= fopen(buf,"r");
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if (file!=NULL)
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break;
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else if (typeLen<1)
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continue;
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if ((nameLen+typeLen+pathLen+2)>=PATH_MAX) {
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ERROR3("File name (%s/%s/%s) too long\n",includePath[i],typeDir,
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name);
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ACTION("Ignored\n");
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continue;
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}
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sprintf(buf,"%s/%s/%s",includePath[i],typeDir,name);
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file= fopen(buf,"r");
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if (file!=NULL)
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break;
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}
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if ((file!=NULL)&&(pathRtrn!=NULL)) {
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*pathRtrn= (char *)calloc(strlen(buf)+1,sizeof(char));
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if (*pathRtrn!=NULL)
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strcpy(*pathRtrn,buf);
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}
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return file;
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}
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