FSFontInfo.c revision ba6a1819
1/* $Xorg: FSFontInfo.c,v 1.4 2001/02/09 02:03:25 xorgcvs Exp $ */ 2/* 3 * Copyright 1990 Network Computing Devices; 4 * Portions Copyright 1987 by Digital Equipment Corporation 5 * 6 * Permission to use, copy, modify, distribute, and sell this software 7 * and its documentation for any purpose is hereby granted without fee, 8 * provided that the above copyright notice appear in all copies and 9 * that both that copyright notice and this permission notice appear 10 * in supporting documentation, and that the names of Network Computing 11 * Devices or Digital not be used in advertising or publicity pertaining 12 * to distribution of the software without specific, written prior 13 * permission. Network Computing Devices or Digital make no representations 14 * about the suitability of this software for any purpose. It is provided 15 * "as is" without express or implied warranty. 16 * 17 * NETWORK COMPUTING DEVICES AND DIGITAL DISCLAIM ALL WARRANTIES WITH 18 * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES 20 * OR DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES 21 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 22 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 23 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 24 * SOFTWARE. 25 */ 26/* $XFree86: xc/lib/FS/FSFontInfo.c,v 1.5tsi Exp $ */ 27 28/* 29 30Copyright 1987, 1998 The Open Group 31 32Permission to use, copy, modify, distribute, and sell this software and its 33documentation for any purpose is hereby granted without fee, provided that 34the above copyright notice appear in all copies and that both that 35copyright notice and this permission notice appear in supporting 36documentation. 37 38The above copyright notice and this permission notice shall be included in 39all copies or substantial portions of the Software. 40 41THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 42IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 43FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 44OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 45AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 46CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 47 48Except as contained in this notice, the name of The Open Group shall not be 49used in advertising or otherwise to promote the sale, use or other dealings 50in this Software without prior written authorization from The Open Group. 51 52*/ 53#ifdef HAVE_CONFIG_H 54#include <config.h> 55#endif 56#include "FSlibint.h" 57 58char ** 59FSListFontsWithXInfo( 60 FSServer *svr, 61 char *pattern, 62 int maxNames, 63 int *count, 64 FSXFontInfoHeader ***info, 65 FSPropInfo ***pprops, 66 FSPropOffset ***offsets, 67 unsigned char ***prop_data) 68{ 69 long nbytes; 70 int i, 71 j; 72 size_t size = 0; 73 FSXFontInfoHeader **fhdr = (FSXFontInfoHeader **) 0; 74 FSPropInfo **pi = (FSPropInfo **) 0; 75 FSPropOffset **po = (FSPropOffset **) 0; 76 unsigned char **pd = (unsigned char **) 0; 77 char **flist = NULL; 78 fsListFontsWithXInfoReply reply; 79 fsListFontsWithXInfoReq *req; 80 fsPropInfo local_pi; 81 fsPropOffset local_po; 82 Status status; 83 84 GetReq(ListFontsWithXInfo, req); 85 req->maxNames = maxNames; 86 nbytes = req->nbytes = pattern ? strlen(pattern) : 0; 87 req->length += (nbytes + 3) >> 2; 88 _FSSend(svr, pattern, nbytes); 89 90 for (i = 0;; i++) { 91 if (FSProtocolVersion(svr) > 1) 92 { 93 status = _FSReply(svr, (fsReply *) &reply, 0, fsFalse); 94 if (status != 0 && reply.nameLength == 0) /* got last reply */ 95 break; 96 if (status) 97 _FSRead(svr, ((char *) &reply) + SIZEOF(fsGenericReply), 98 SIZEOF(fsListFontsWithXInfoReply) - 99 SIZEOF(fsGenericReply)); 100 } else { 101 status = _FSReply(svr, (fsReply *) & reply, 102 ((SIZEOF(fsListFontsWithXInfoReply) - 103 SIZEOF(fsGenericReply)) >> 2), fsFalse); 104 } 105 if (!status) { 106 for (j = (i - 1); j >= 0; j--) { 107 FSfree((char *) fhdr[j]); 108 FSfree((char *) pi[j]); 109 FSfree((char *) po[j]); 110 FSfree((char *) pd[j]); 111 FSfree(flist[j]); 112 } 113 if (flist) 114 FSfree((char *) flist); 115 if (fhdr) 116 FSfree((char *) fhdr); 117 if (pi) 118 FSfree((char *) pi); 119 if (po) 120 FSfree((char *) po); 121 if (pd) 122 FSfree((char *) pd); 123 124 SyncHandle(); 125 return (char **) NULL; 126 } 127 if (reply.nameLength == 0) /* got last reply in version 1 */ 128 break; 129 if ((i + reply.nReplies) >= size) { 130 131 if (reply.nReplies > SIZE_MAX - i - 1) 132 goto badmem; 133 size = i + reply.nReplies + 1; 134 135 if (size > SIZE_MAX / sizeof(char *)) 136 goto badmem; 137 138 if (fhdr) { 139 FSXFontInfoHeader **tmp_fhdr = (FSXFontInfoHeader **) 140 FSrealloc((char *) fhdr, 141 (unsigned) (sizeof(FSXFontInfoHeader *) * size)); 142 char **tmp_flist = (char **) FSrealloc((char *) flist, 143 (unsigned) (sizeof(char *) * size)); 144 FSPropInfo **tmp_pi = (FSPropInfo **) 145 FSrealloc((char *) pi, 146 (unsigned) (sizeof(FSPropInfo *) * size)); 147 FSPropOffset **tmp_po = (FSPropOffset **) 148 FSrealloc((char *) po, 149 (unsigned) (sizeof(FSPropOffset *) * size)); 150 unsigned char **tmp_pd = (unsigned char **) 151 FSrealloc((char *) pd, 152 (unsigned) (sizeof(unsigned char *) * size)); 153 154 if (!tmp_fhdr || !tmp_flist || !tmp_pi || !tmp_po || !tmp_pd) { 155 for (j = (i - 1); j >= 0; j--) { 156 FSfree((char *) flist[j]); 157 FSfree((char *) fhdr[j]); 158 FSfree((char *) pi[j]); 159 FSfree((char *) po[j]); 160 FSfree((char *) pd[j]); 161 } 162 if (tmp_flist) 163 FSfree((char *) tmp_flist); 164 else 165 FSfree((char *) flist); 166 if (tmp_fhdr) 167 FSfree((char *) tmp_fhdr); 168 else 169 FSfree((char *) fhdr); 170 if (tmp_pi) 171 FSfree((char *) tmp_pi); 172 else 173 FSfree((char *) pi); 174 if (tmp_po) 175 FSfree((char *) tmp_po); 176 else 177 FSfree((char *) po); 178 if (tmp_pd) 179 FSfree((char *) tmp_pd); 180 else 181 FSfree((char *) pd); 182 goto clearwire; 183 } 184 fhdr = tmp_fhdr; 185 flist = tmp_flist; 186 pi = tmp_pi; 187 po = tmp_po; 188 pd = tmp_pd; 189 } else { 190 if (!(fhdr = (FSXFontInfoHeader **) 191 FSmalloc((unsigned) (sizeof(FSXFontInfoHeader *) * size)))) 192 goto clearwire; 193 if (!(flist = (char **) 194 FSmalloc((unsigned) (sizeof(char *) * size)))) { 195 FSfree((char *) fhdr); 196 goto clearwire; 197 } 198 if (!(pi = (FSPropInfo **) 199 FSmalloc((unsigned) (sizeof(FSPropInfo *) * size)))) { 200 FSfree((char *) fhdr); 201 FSfree((char *) flist); 202 goto clearwire; 203 } 204 if (!(po = (FSPropOffset **) 205 FSmalloc((unsigned) (sizeof(FSPropOffset *) * size)))) { 206 FSfree((char *) fhdr); 207 FSfree((char *) flist); 208 FSfree((char *) pi); 209 goto clearwire; 210 } 211 if (!(pd = (unsigned char **) 212 FSmalloc((unsigned) (sizeof(unsigned char *) * size)))) { 213 FSfree((char *) fhdr); 214 FSfree((char *) flist); 215 FSfree((char *) pi); 216 FSfree((char *) po); 217 goto clearwire; 218 } 219 } 220 } 221 fhdr[i] = (FSXFontInfoHeader *) FSmalloc(sizeof(FSXFontInfoHeader)); 222 if (!fhdr[i]) { 223 goto badmem; 224 } 225 FSUnpack_XFontInfoHeader(&reply, fhdr[i], FSProtocolVersion(svr)); 226 227 /* alloc space for the name */ 228 flist[i] = (char *) FSmalloc((unsigned int) (reply.nameLength + 1)); 229 if (FSProtocolVersion(svr) == 1) 230 { 231 /* get the name */ 232 if (!flist[i]) { 233 nbytes = (reply.nameLength + 3) & ~3; 234 _FSEatData(svr, (unsigned long) nbytes); 235 goto badmem; 236 } 237 _FSReadPad(svr, flist[i], (long) reply.nameLength); 238 flist[i][reply.nameLength] = '\0'; 239 } 240 241 pi[i] = (FSPropInfo *) FSmalloc(sizeof(FSPropInfo)); 242 if (!pi[i]) { 243 FSfree((char *) fhdr[i]); 244 goto badmem; 245 } 246 _FSReadPad(svr, (char *) &local_pi, SIZEOF(fsPropInfo)); 247 pi[i]->num_offsets = local_pi.num_offsets; 248 pi[i]->data_len = local_pi.data_len; 249 250#if SIZE_MAX <= UINT_MAX 251 if (pi[i]->num_offsets > SIZE_MAX / sizeof(FSPropOffset)) 252 goto badmem; 253#endif 254 255 po[i] = (FSPropOffset *) 256 FSmalloc(pi[i]->num_offsets * sizeof(FSPropOffset)); 257 if (!po[i]) { 258 FSfree((char *) fhdr[i]); 259 FSfree((char *) pi[i]); 260 goto badmem; 261 } 262 pd[i] = (unsigned char *) FSmalloc(pi[i]->data_len); 263 if (!pd[i]) { 264 FSfree((char *) fhdr[i]); 265 FSfree((char *) pi[i]); 266 FSfree((char *) po[i]); 267 goto badmem; 268 } 269 /* get offsets */ 270 for (j=0; j<pi[i]->num_offsets; j++) 271 { 272 _FSReadPad(svr, (char *) &local_po, SIZEOF(fsPropOffset)); 273 po[i][j].name.position = local_po.name.position; 274 po[i][j].name.length = local_po.name.length; 275 po[i][j].value.position = local_po.value.position; 276 po[i][j].value.length = local_po.value.length; 277 po[i][j].type = local_po.type; 278 } 279 280 /* get prop data */ 281 if (FSProtocolVersion(svr) == 1) 282 _FSReadPad(svr, (char *) pd[i], pi[i]->data_len); 283 else 284 _FSRead(svr, (char *) pd[i], pi[i]->data_len); 285 286 if (FSProtocolVersion(svr) != 1) 287 { 288 /* get the name */ 289 if (!flist[i]) { 290 nbytes = (reply.nameLength + 3) & ~3; 291 _FSEatData(svr, (unsigned long) nbytes); 292 goto badmem; 293 } 294 _FSRead(svr, flist[i], (long) reply.nameLength); 295 flist[i][reply.nameLength] = '\0'; 296 297 nbytes = pi[i]->data_len + reply.nameLength; 298 _FSEatData(svr, (unsigned long) (((nbytes+3)&~3) - nbytes)); 299 } 300 /* avoid integer overflow */ 301 if (i > INT_MAX - 1) { 302 goto badmem; 303 } 304 } 305 *info = fhdr; 306 *count = i; 307 *pprops = pi; 308 *offsets = po; 309 *prop_data = pd; 310 SyncHandle(); 311 return flist; 312 313badmem: 314 for (j = (i - 1); j >= 0; j--) { 315 FSfree((char *) pi[j]); 316 FSfree((char *) po[j]); 317 FSfree((char *) pd[j]); 318 FSfree(flist[j]); 319 FSfree((char *) fhdr[j]); 320 } 321 if (flist) 322 FSfree((char *) flist); 323 if (fhdr) 324 FSfree((char *) fhdr); 325 if (pi) 326 FSfree((char *) pi); 327 if (po) 328 FSfree((char *) po); 329 if (pd) 330 FSfree((char *) pd); 331 332 333clearwire: 334 do { 335 fsPropInfo ti; 336 337 _FSEatData(svr, (reply.nameLength + 3) & ~3); 338 _FSReadPad(svr, (char *) &ti, SIZEOF(fsPropInfo)); 339 _FSEatData(svr, (SIZEOF(fsPropOffset) * ti.num_offsets)); 340 _FSEatData(svr, ti.data_len); 341 } while (_FSReply(svr, (fsReply *) & reply, 342 ((SIZEOF(fsListFontsWithXInfoReply) 343 - SIZEOF(fsGenericReply)) >> 2), fsFalse) && (reply.nameLength != 0)); 344 SyncHandle(); 345 return (char **) NULL; 346} 347