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115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
/* $Xorg: FontNames.c,v 1.4 2001/02/09 02:03:33 xorgcvs Exp $ */
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/*
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Copyright 1986, 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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/* $XFree86: xc/lib/X11/FontNames.c,v 1.7 2003/11/17 22:20:06 dawes Exp $ */
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#define NEED_REPLIES
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#include "Xlibint.h"
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char **
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XListFonts(
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register Display *dpy,
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_Xconst char *pattern, /* null-terminated */
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int maxNames,
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int *actualCount) /* RETURN */
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{
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register long nbytes;
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register unsigned i;
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register int length;
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char **flist;
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char *ch;
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xListFontsReply rep;
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register xListFontsReq *req;
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register long rlen;
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LockDisplay(dpy);
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GetReq(ListFonts, req);
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req->maxNames = maxNames;
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nbytes = req->nbytes = pattern ? strlen (pattern) : 0;
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req->length += (nbytes + 3) >> 2;
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_XSend (dpy, pattern, nbytes);
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/* use _XSend instead of Data, since following _XReply will flush buffer */
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if (!_XReply (dpy, (xReply *)&rep, 0, xFalse)) {
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*actualCount = 0;
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UnlockDisplay(dpy);
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SyncHandle();
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return (char **) NULL;
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}
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if (rep.nFonts) {
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flist = (char **)Xmalloc ((unsigned)rep.nFonts * sizeof(char *));
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rlen = rep.length << 2;
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ch = (char *) Xmalloc((unsigned) (rlen + 1));
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/* +1 to leave room for last null-terminator */
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if ((! flist) || (! ch)) {
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if (flist) Xfree((char *) flist);
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if (ch) Xfree(ch);
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_XEatData(dpy, (unsigned long) rlen);
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*actualCount = 0;
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UnlockDisplay(dpy);
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SyncHandle();
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return (char **) NULL;
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}
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_XReadPad (dpy, ch, rlen);
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/*
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* unpack into null terminated strings.
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*/
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length = *(unsigned char *)ch;
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*ch = 1; /* make sure it is non-zero for XFreeFontNames */
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for (i = 0; i < rep.nFonts; i++) {
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flist[i] = ch + 1; /* skip over length */
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ch += length + 1; /* find next length ... */
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length = *(unsigned char *)ch;
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*ch = '\0'; /* and replace with null-termination */
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}
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}
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else flist = (char **) NULL;
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*actualCount = rep.nFonts;
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UnlockDisplay(dpy);
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SyncHandle();
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return (flist);
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}
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int
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XFreeFontNames(list)
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char **list;
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{
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if (list) {
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if (!*(list[0]-1)) { /* from ListFontsWithInfo */
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register char **names;
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for (names = list+1; *names; names++)
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Xfree (*names);
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}
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Xfree (list[0]-1);
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Xfree ((char *)list);
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}
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return 1;
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}
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