2d0c4d6d39
This has meant very little for a long time as configure.ac just hardcoded these values depending on the current OS versions at the time. The only place where this is really 'needed' is XlationSvc.c in DtSvc so that differences between locale specifications on various versions of an OS can be accounted for. So for now, we just define those when building DtSvc. We could probably safely remove them as well with an update to the Xlate locale DB to remove ancient cruft we don't care about anymore. For various other modules, like dtlogin, dtsession, etc we just use the code that was already being used due to the hardcoded values we've had for the last 10-ish years.
327 lines
11 KiB
C
327 lines
11 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/* $XConsortium: fontpath.c /main/4 1995/10/27 16:13:29 rswiston $ */
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/* *
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* (c) Copyright 1993, 1994 Hewlett-Packard Company *
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* (c) Copyright 1993, 1994 International Business Machines Corp. *
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* (c) Copyright 1993, 1994 Sun Microsystems, Inc. *
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* (c) Copyright 1993, 1994 Novell, Inc. *
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*/
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/*
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** fontpath.c - font path modification routines
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**
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** $fontpath.c,v 1.1 93/06/24 14:52:10 bill Exp $
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**
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** Copyright 1993 Hewlett-Packard Company
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*/
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# include "dm.h"
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# include <signal.h>
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# include <X11/Xatom.h>
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# include <X11/Xmu/Error.h>
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#if defined(__FreeBSD__)
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# include <utmpx.h>
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#else
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# include <utmp.h>
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#endif
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# include "vgproto.h"
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/*
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** Prototypes
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*/
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int ApplyFontPathMods( struct display *d, Display *dpy );
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void GetSysParms( char **tzpp, char **fhpp, char **ftpp );
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static int PathInPList(char *path, char **fplist, int listlen);
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static int PathInZList(char *path, char *fplist, int listlen);
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static int SeparateParts( char **path );
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void GenerateAuthData(char *auth, int len); // genauth.c
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static void
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DebugFontPath(char *note, char **path, int nelems)
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{
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int i;
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Debug(" %s: %d elements\n",note,nelems);
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for (i=0; i<nelems; i++)
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Debug(" %s\n",path[i]);
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}
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static int
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ErrorHandler(Display *dpy, XErrorEvent *event)
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{
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XmuPrintDefaultErrorMessage(dpy, event, stderr);
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return 0; /* nonfatal */
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}
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/* ________________________________________________________________
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**| |
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**| ApplyFontPathMods(d) - |
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**| |
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**| If new font path mods are mandated, fabricate and apply |
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**| an appropriate new complete X server font path. |
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**| |
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**| Specify: d = pointer to display structure |
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**| |
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**| Returns: nothing |
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**|________________________________________________________________|
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*/
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int
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ApplyFontPathMods( struct display *d, Display *dpy )
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{
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FILE *fin;
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char *s,*t;
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char *fph = NULL;
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char *fpt = NULL;
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char **fontPath,**newList;
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int numHeads = 0;
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int numTails = 0;
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int i,j,k,numPaths;
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Debug("ApplyFontPathMods() for %s\n",d->name);
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if (d->displayType.location == Foreign) {
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Debug(" Foreign display\n");
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return 0;
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}
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if (!(fontPath=XGetFontPath(dpy, &numPaths))) {
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Debug(" Can't get font path\n");
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return 0;
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}
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/*
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** Font path mods can come from (in priority order):
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**
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** 1. FONT_PATH_HEAD/TAIL definitions in /etc/src.sh
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** 2. fontPathHead/Tail resources
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*/
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GetSysParms(0,&fph,&fpt);
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if (fph) { s = "sys parm file"; }
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else if (fpHead) { s = "resource"; fph = strdup(fpHead); }
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if (fph && !*fph) { free(fph); fph = NULL; }
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if (fph) Debug(" +fp (%s) %s\n",s,fph);
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if (fpt) { s = "sys parm file"; }
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else if (fpTail) { s = "resource"; fpt = strdup(fpTail); }
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if (fpt && !*fpt) { free(fpt); fpt = NULL; }
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if (fpt) Debug(" fp+ (%s) %s\n",s,fpt);
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/*
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** Break up fph and fpt into constituent parts and
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** then reconstruct the complete, modified font path.
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** During reconstruction we also eliminate redundancies.
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*/
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numHeads = SeparateParts(&fph);
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numTails = SeparateParts(&fpt);
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if (numHeads || numTails) {
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newList = (char **) malloc((numHeads+numPaths+numTails)
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* sizeof(char *));
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if (newList) {
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for (s=fph, i=j=0; j<numHeads; j++) {
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if (!PathInPList(s,newList,i))
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newList[i++] = s;
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while (*s) s++; s++;
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}
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for (j=0; j<numPaths; j++) {
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if (!PathInPList(fontPath[j],newList,i) &&
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!PathInZList(fontPath[j],fpt,numTails)) {
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newList[i++] = fontPath[j];
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}
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}
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for (s=fpt, j=0; j<numTails; j++) {
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if (!PathInPList(s,newList,i))
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newList[i++] = s;
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while (*s) s++; s++;
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}
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if (debugLevel > 0)
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DebugFontPath("Request (XSetFontPath)",newList,i);
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/*
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** Tell X server to set new font path now. Log failure,
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** but don't let it be fatal. (Note that caller should
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** reset error handler to elsewhere when we return.)
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*/
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(void)XSetErrorHandler(ErrorHandler);
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XSetFontPath(dpy, newList, i);
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XSync(dpy, True);
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free(newList);
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if (debugLevel > 0) {
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newList = XGetFontPath(dpy, &i);
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DebugFontPath("Confirm (XGetFontPath)",newList,i);
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XFreeFontPath(newList);
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}
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}
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}
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if (fph) free(fph);
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if (fpt) free(fpt);
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XFreeFontPath(fontPath);
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return 1;
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}
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/* ___________________________________________________________________
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**| |
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**| PathInPList(path,fplist,listlen) - |
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**| |
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**| Determine if a specific fontpath element is in a list, |
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**| taking into account that identical elements may be formed |
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**| differently (with multiple embedded and trailing slashes). |
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**| |
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**| Specify: (char *)path = the single element to be tested |
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**| (char **)fplist = list of ptrs to asciz elements |
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**| (int)listlen = number of pointers in the list |
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**| |
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**| Returns: TRUE if element is in the list |
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**|___________________________________________________________________|
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*/
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static int
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PathInPList(char *path, char **fplist, int listlen)
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{
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char *s,*t;
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while (listlen-- > 0) {
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for (s=path, t=fplist[listlen]; *s && (*s == *t); ) {
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t++; while (*t == '/') t++;
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s++; while (*s == '/') s++;
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}
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if (!*s && !*t) return 1;
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}
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return 0;
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}
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/* ___________________________________________________________________
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**| |
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**| PathInZList(path,fplist,listlen) - |
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**| |
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**| Determine if a specific fontpath element is in a list, |
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**| taking into account that identical elements may be formed |
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**| differently (with multiple embedded and trailing slashes). |
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**| |
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**| Specify: (char *)path = the single element to be tested |
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**| (char *)fplist = list of concatenated asciz elements |
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**| (int)listlen = number of elements in the list |
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**| |
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**| Returns: TRUE if element is in the list |
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**|___________________________________________________________________|
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*/
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static int
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PathInZList(char *path, char *fplist, int listlen)
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{
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char *s,*t;
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for (t=fplist; listlen > 0; listlen--) {
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for (s=path; *s && (*s == *t); ) {
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t++; while (*t == '/') t++;
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s++; while (*s == '/') s++;
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}
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if (!*s && !*t) return 1;
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while (*t) t++; t++;
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}
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return 0;
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}
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/* ________________________________________________________________
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**| |
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**| SeparateParts(path) |
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**| |
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**| Break a comma-delimited asciz path string into its |
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**| separate asciz constituent parts. |
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**| |
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**| Specify: path = ptr to asciz path string (e.g., "as,df,jk") |
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**| |
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**| Returns: number of constituent parts, with path string |
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**| converted into as many sequential asciz strings |
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**| (e.g., "as\0df\0jk"). |
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**|________________________________________________________________|
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*/
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static int
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SeparateParts( char **path )
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{
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char *t,*s;
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int nparts = 0;
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if (path && *path)
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for (s=*path; t=strtok(s,","); s=NULL, nparts++);
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return nparts;
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}
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/* ___________________________________________________________________
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**| |
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**| GetSysParms(tzpp,fhpp,ftpp) - |
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**| |
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**| Extract TZ, FONT_PATH_HEAD, and FONT_PATH_TAIL definitions |
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**| from the sys parms file (typically /etc/src.sh). |
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**| |
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**| Specify: (char **)tzpp = where to put ptr to TZ string |
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**| (char **)fhpp = where to put ptr to FONT_PATH_HEAD |
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**| (char **)ftpp = where to put ptr to FONT_PATH_TAIL |
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**| |
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**| Specify a NULL (char **) for any undesired strings. |
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**| |
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**| Returns: Appropriate pointers to malloc'ed strings (NULL pointer |
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**| if a string is neither requested nor defined). |
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**|___________________________________________________________________|
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*/
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void
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GetSysParms( char **tzpp, char **fhpp, char **ftpp )
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{
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FILE *fin;
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char *s,*t,buf[256];
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if (tzpp) *tzpp = NULL;
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if (fhpp) *fhpp = NULL;
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if (ftpp) *ftpp = NULL;
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if ((*sysParmsFile != '/') || !(fin=fopen(sysParmsFile,"r"))) {
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Debug("(GetSysParms) Can't open sys parms file\n");
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return;
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}
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Debug("(GetSysParms) Reading sys parms file\n");
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while (fgets(buf,255,fin)) {
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for (t=buf; *t && *t<=' '; t++); /* t -> EOS or nonblank */
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if (!*t || *t=='#') continue; /* ignore comment lines */
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while (*t && *t!='\n') t++; /* t -> EOS or newline */
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if (*t) *t = '\0'; /* discard newline char */
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if (tzpp && !*tzpp)
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if ((s=strstr(buf,"TZ=")) && (t=strtok(s+3,"; \t")))
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*tzpp = (char *) strdup(t);
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if (fhpp && !*fhpp)
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if ((s=strstr(buf,"FONT_PATH_HEAD=")) && (t=strtok(s+15,"; \t")))
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*fhpp = (char *) strdup(t);
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if (ftpp && !*ftpp)
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if ((s=strstr(buf,"FONT_PATH_TAIL=")) && (t=strtok(s+15,"; \t")))
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*ftpp = (char *) strdup(t);
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}
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fclose(fin);
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}
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