sync code with last improvements from OpenBSD
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88965415ff
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26235 changed files with 29195616 additions and 0 deletions
261
lib/libXmu/src/LocBitmap.c
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261
lib/libXmu/src/LocBitmap.c
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/*
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Copyright 1989, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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*/
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/*
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* Author: Jim Fulton, MIT X Consortium
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <X11/Xlib.h>
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#include <stdlib.h>
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#include <string.h>
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#include <X11/Xresource.h>
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#include <X11/Xutil.h>
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#include <X11/Xmu/CvtCache.h>
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#include <X11/Xmu/Drawing.h>
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#include <X11/Xmu/SysUtil.h>
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#ifndef X_NOT_POSIX
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#ifdef _POSIX_SOURCE
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#include <limits.h>
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#else
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#define _POSIX_SOURCE
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#include <limits.h>
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#undef _POSIX_SOURCE
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#endif
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#endif /* X_NOT_POSIX */
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#ifndef PATH_MAX
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#ifdef WIN32
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#define PATH_MAX 512
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#else
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#include <sys/param.h>
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#endif
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#ifndef PATH_MAX
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#ifdef MAXPATHLEN
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#define PATH_MAX MAXPATHLEN
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#else
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#define PATH_MAX 1024
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#endif
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#endif
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#endif /* PATH_MAX */
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/*
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* Prototypes
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*/
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static char **split_path_string(char*);
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/*
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* XmuLocateBitmapFile - read a bitmap file using the normal defaults
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*/
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Pixmap
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XmuLocateBitmapFile(Screen *screen, _Xconst char *name, char *srcname,
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int srcnamelen, int *widthp, int *heightp,
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int *xhotp, int *yhotp)
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{
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return XmuLocatePixmapFile (screen, name,
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(unsigned long) 1, (unsigned long) 0,
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(unsigned int) 1, srcname, srcnamelen,
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widthp, heightp, xhotp, yhotp);
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}
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/*
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* version that reads pixmap data as well as bitmap data
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*/
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Pixmap
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XmuLocatePixmapFile(Screen *screen, _Xconst char *name,
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unsigned long fore, unsigned long back,
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unsigned int depth,
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char *srcname, int srcnamelen,
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int *widthp, int *heightp, int *xhotp, int *yhotp)
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{
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#ifndef BITMAPDIR
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#define BITMAPDIR "/usr/include/X11/bitmaps"
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#endif
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Display *dpy = DisplayOfScreen (screen);
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Window root = RootWindowOfScreen (screen);
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Bool try_plain_name = True;
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XmuCvtCache *cache = _XmuCCLookupDisplay (dpy);
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char **file_paths = (char **) NULL;
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char filename[PATH_MAX];
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#if 0
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char* bitmapdir = BITMAPDIR;
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#endif
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unsigned int width, height;
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int xhot, yhot;
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int i;
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/*
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* look in cache for bitmap path
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*/
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if (cache) {
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if (!cache->string_to_bitmap.bitmapFilePath) {
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XrmName xrm_name[2];
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XrmClass xrm_class[2];
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XrmRepresentation rep_type;
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XrmValue value;
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xrm_name[0] = XrmPermStringToQuark ("bitmapFilePath");
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xrm_name[1] = NULLQUARK;
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xrm_class[0] = XrmPermStringToQuark ("BitmapFilePath");
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xrm_class[1] = NULLQUARK;
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if (!XrmGetDatabase(dpy)) {
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/* what a hack; need to initialize it */
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(void) XGetDefault (dpy, "", "");
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}
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if (XrmQGetResource (XrmGetDatabase(dpy), xrm_name, xrm_class,
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&rep_type, &value) &&
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rep_type == XrmPermStringToQuark("String")) {
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cache->string_to_bitmap.bitmapFilePath =
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split_path_string (value.addr);
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}
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}
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file_paths = cache->string_to_bitmap.bitmapFilePath;
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}
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/*
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* Search order:
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* 1. name if it begins with / or ./
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* 2. "each prefix in file_paths"/name
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* 3. BITMAPDIR/name
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* 4. name if didn't begin with / or .
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*/
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for (i = 1; i <= 4; i++) {
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const char *fn = filename;
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Pixmap pixmap;
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unsigned char *data;
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switch (i) {
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case 1:
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if (!(name[0] == '/' || ((name[0] == '.') && name[1] == '/')))
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continue;
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fn = name;
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try_plain_name = False;
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break;
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case 2:
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if (file_paths && *file_paths) {
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XmuSnprintf(filename, sizeof(filename),
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"%s/%s", *file_paths, name);
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file_paths++;
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i--;
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break;
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}
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continue;
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case 3:
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XmuSnprintf(filename, sizeof(filename), "%s/%s", BITMAPDIR, name);
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break;
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case 4:
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if (!try_plain_name) continue;
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fn = name;
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break;
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}
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data = NULL;
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pixmap = None;
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if (XmuReadBitmapDataFromFile (fn, &width, &height, &data,
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&xhot, &yhot) == BitmapSuccess) {
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pixmap = XCreatePixmapFromBitmapData (dpy, root, (char *) data,
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width, height,
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fore, back, depth);
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XFree ((char *)data);
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}
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if (pixmap) {
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if (widthp) *widthp = (int)width;
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if (heightp) *heightp = (int)height;
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if (xhotp) *xhotp = xhot;
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if (yhotp) *yhotp = yhot;
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if (srcname && srcnamelen > 0) {
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strncpy (srcname, fn, srcnamelen - 1);
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srcname[srcnamelen - 1] = '\0';
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}
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return pixmap;
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}
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}
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return None;
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}
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/*
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* split_path_string - split a colon-separated list into its constituent
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* parts; to release, free list[0] and list.
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*/
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static char **
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split_path_string(register char *src)
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{
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int nelems = 1;
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register char *dst;
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char **elemlist, **elem;
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/* count the number of elements */
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for (dst = src; *dst; dst++) if (*dst == ':') nelems++;
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/* get memory for everything */
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dst = malloc (dst - src + 1);
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if (!dst) return NULL;
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elemlist = calloc ((nelems + 1), sizeof (char *));
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if (!elemlist) {
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free (dst);
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return NULL;
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}
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/* copy to new list and walk up nulling colons and setting list pointers */
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strcpy (dst, src);
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for (elem = elemlist, src = dst; *src; src++) {
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if (*src == ':') {
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*elem++ = dst;
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*src = '\0';
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dst = src + 1;
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}
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}
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*elem = dst;
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return elemlist;
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}
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void
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_XmuStringToBitmapInitCache(register XmuCvtCache *c)
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{
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c->string_to_bitmap.bitmapFilePath = NULL;
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}
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void
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_XmuStringToBitmapFreeCache(register XmuCvtCache *c)
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{
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if (c->string_to_bitmap.bitmapFilePath) {
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if (c->string_to_bitmap.bitmapFilePath[0])
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free (c->string_to_bitmap.bitmapFilePath[0]);
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free (c->string_to_bitmap.bitmapFilePath);
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}
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}
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