FSFontInfo.c revision 2d8abe4f
1/* 2 * Copyright 1990 Network Computing Devices; 3 * Portions Copyright 1987 by Digital Equipment Corporation 4 * 5 * Permission to use, copy, modify, distribute, and sell this software 6 * and its documentation for any purpose is hereby granted without fee, 7 * provided that the above copyright notice appear in all copies and 8 * that both that copyright notice and this permission notice appear 9 * in supporting documentation, and that the names of Network Computing 10 * Devices or Digital not be used in advertising or publicity pertaining 11 * to distribution of the software without specific, written prior 12 * permission. Network Computing Devices or Digital make no representations 13 * about the suitability of this software for any purpose. It is provided 14 * "as is" without express or implied warranty. 15 * 16 * NETWORK COMPUTING DEVICES AND DIGITAL DISCLAIM ALL WARRANTIES WITH 17 * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES 19 * OR DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES 20 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 21 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 22 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 23 * SOFTWARE. 24 */ 25 26/* 27 28Copyright 1987, 1998 The Open Group 29 30Permission to use, copy, modify, distribute, and sell this software and its 31documentation for any purpose is hereby granted without fee, provided that 32the above copyright notice appear in all copies and that both that 33copyright notice and this permission notice appear in supporting 34documentation. 35 36The above copyright notice and this permission notice shall be included in 37all copies or substantial portions of the Software. 38 39THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 40IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 41FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 42OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 43AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 44CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 45 46Except as contained in this notice, the name of The Open Group shall not be 47used in advertising or otherwise to promote the sale, use or other dealings 48in this Software without prior written authorization from The Open Group. 49 50*/ 51#ifdef HAVE_CONFIG_H 52#include <config.h> 53#endif 54#include "FSlibint.h" 55 56char ** 57FSListFontsWithXInfo( 58 FSServer *svr, 59 char *pattern, 60 int maxNames, 61 int *count, 62 FSXFontInfoHeader ***info, 63 FSPropInfo ***pprops, 64 FSPropOffset ***offsets, 65 unsigned char ***prop_data) 66{ 67 long nbytes; 68 int i, 69 j; 70 size_t size = 0; 71 FSXFontInfoHeader **fhdr = (FSXFontInfoHeader **) 0; 72 FSPropInfo **pi = (FSPropInfo **) 0; 73 FSPropOffset **po = (FSPropOffset **) 0; 74 unsigned char **pd = (unsigned char **) 0; 75 char **flist = NULL; 76 fsListFontsWithXInfoReply reply; 77 fsListFontsWithXInfoReq *req; 78 fsPropInfo local_pi; 79 fsPropOffset local_po; 80 Status status; 81 82 GetReq(ListFontsWithXInfo, req); 83 req->maxNames = maxNames; 84 nbytes = req->nbytes = pattern ? strlen(pattern) : 0; 85 req->length += (nbytes + 3) >> 2; 86 _FSSend(svr, pattern, nbytes); 87 88 for (i = 0;; i++) { 89 if (FSProtocolVersion(svr) > 1) 90 { 91 status = _FSReply(svr, (fsReply *) &reply, 0, fsFalse); 92 if (status != 0 && reply.nameLength == 0) /* got last reply */ 93 break; 94 if (status) 95 _FSRead(svr, ((char *) &reply) + SIZEOF(fsGenericReply), 96 SIZEOF(fsListFontsWithXInfoReply) - 97 SIZEOF(fsGenericReply)); 98 } else { 99 status = _FSReply(svr, (fsReply *) & reply, 100 ((SIZEOF(fsListFontsWithXInfoReply) - 101 SIZEOF(fsGenericReply)) >> 2), fsFalse); 102 } 103 if (!status) { 104 for (j = (i - 1); j >= 0; j--) { 105 FSfree((char *) fhdr[j]); 106 FSfree((char *) pi[j]); 107 FSfree((char *) po[j]); 108 FSfree((char *) pd[j]); 109 FSfree(flist[j]); 110 } 111 if (flist) 112 FSfree((char *) flist); 113 if (fhdr) 114 FSfree((char *) fhdr); 115 if (pi) 116 FSfree((char *) pi); 117 if (po) 118 FSfree((char *) po); 119 if (pd) 120 FSfree((char *) pd); 121 122 SyncHandle(); 123 return (char **) NULL; 124 } 125 if (reply.nameLength == 0) /* got last reply in version 1 */ 126 break; 127 if ((i + reply.nReplies) >= size) { 128 129 if (reply.nReplies > SIZE_MAX - i - 1) 130 goto badmem; 131 size = i + reply.nReplies + 1; 132 133 if (size > SIZE_MAX / sizeof(char *)) 134 goto badmem; 135 136 if (fhdr) { 137 FSXFontInfoHeader **tmp_fhdr = (FSXFontInfoHeader **) 138 FSrealloc((char *) fhdr, 139 (unsigned) (sizeof(FSXFontInfoHeader *) * size)); 140 char **tmp_flist = (char **) FSrealloc((char *) flist, 141 (unsigned) (sizeof(char *) * size)); 142 FSPropInfo **tmp_pi = (FSPropInfo **) 143 FSrealloc((char *) pi, 144 (unsigned) (sizeof(FSPropInfo *) * size)); 145 FSPropOffset **tmp_po = (FSPropOffset **) 146 FSrealloc((char *) po, 147 (unsigned) (sizeof(FSPropOffset *) * size)); 148 unsigned char **tmp_pd = (unsigned char **) 149 FSrealloc((char *) pd, 150 (unsigned) (sizeof(unsigned char *) * size)); 151 152 if (!tmp_fhdr || !tmp_flist || !tmp_pi || !tmp_po || !tmp_pd) { 153 for (j = (i - 1); j >= 0; j--) { 154 FSfree((char *) flist[j]); 155 FSfree((char *) fhdr[j]); 156 FSfree((char *) pi[j]); 157 FSfree((char *) po[j]); 158 FSfree((char *) pd[j]); 159 } 160 if (tmp_flist) 161 FSfree((char *) tmp_flist); 162 else 163 FSfree((char *) flist); 164 if (tmp_fhdr) 165 FSfree((char *) tmp_fhdr); 166 else 167 FSfree((char *) fhdr); 168 if (tmp_pi) 169 FSfree((char *) tmp_pi); 170 else 171 FSfree((char *) pi); 172 if (tmp_po) 173 FSfree((char *) tmp_po); 174 else 175 FSfree((char *) po); 176 if (tmp_pd) 177 FSfree((char *) tmp_pd); 178 else 179 FSfree((char *) pd); 180 goto clearwire; 181 } 182 fhdr = tmp_fhdr; 183 flist = tmp_flist; 184 pi = tmp_pi; 185 po = tmp_po; 186 pd = tmp_pd; 187 } else { 188 if (!(fhdr = (FSXFontInfoHeader **) 189 FSmalloc((unsigned) (sizeof(FSXFontInfoHeader *) * size)))) 190 goto clearwire; 191 if (!(flist = (char **) 192 FSmalloc((unsigned) (sizeof(char *) * size)))) { 193 FSfree((char *) fhdr); 194 goto clearwire; 195 } 196 if (!(pi = (FSPropInfo **) 197 FSmalloc((unsigned) (sizeof(FSPropInfo *) * size)))) { 198 FSfree((char *) fhdr); 199 FSfree((char *) flist); 200 goto clearwire; 201 } 202 if (!(po = (FSPropOffset **) 203 FSmalloc((unsigned) (sizeof(FSPropOffset *) * size)))) { 204 FSfree((char *) fhdr); 205 FSfree((char *) flist); 206 FSfree((char *) pi); 207 goto clearwire; 208 } 209 if (!(pd = (unsigned char **) 210 FSmalloc((unsigned) (sizeof(unsigned char *) * size)))) { 211 FSfree((char *) fhdr); 212 FSfree((char *) flist); 213 FSfree((char *) pi); 214 FSfree((char *) po); 215 goto clearwire; 216 } 217 } 218 } 219 fhdr[i] = (FSXFontInfoHeader *) FSmalloc(sizeof(FSXFontInfoHeader)); 220 if (!fhdr[i]) { 221 goto badmem; 222 } 223 FSUnpack_XFontInfoHeader(&reply, fhdr[i], FSProtocolVersion(svr)); 224 225 /* alloc space for the name */ 226 flist[i] = (char *) FSmalloc((unsigned int) (reply.nameLength + 1)); 227 if (FSProtocolVersion(svr) == 1) 228 { 229 /* get the name */ 230 if (!flist[i]) { 231 nbytes = (reply.nameLength + 3) & ~3; 232 _FSEatData(svr, (unsigned long) nbytes); 233 goto badmem; 234 } 235 _FSReadPad(svr, flist[i], (long) reply.nameLength); 236 flist[i][reply.nameLength] = '\0'; 237 } 238 239 pi[i] = (FSPropInfo *) FSmalloc(sizeof(FSPropInfo)); 240 if (!pi[i]) { 241 FSfree((char *) fhdr[i]); 242 goto badmem; 243 } 244 _FSReadPad(svr, (char *) &local_pi, SIZEOF(fsPropInfo)); 245 pi[i]->num_offsets = local_pi.num_offsets; 246 pi[i]->data_len = local_pi.data_len; 247 248#if SIZE_MAX <= UINT_MAX 249 if (pi[i]->num_offsets > SIZE_MAX / sizeof(FSPropOffset)) 250 goto badmem; 251#endif 252 253 po[i] = (FSPropOffset *) 254 FSmalloc(pi[i]->num_offsets * sizeof(FSPropOffset)); 255 if (!po[i]) { 256 FSfree((char *) fhdr[i]); 257 FSfree((char *) pi[i]); 258 goto badmem; 259 } 260 pd[i] = (unsigned char *) FSmalloc(pi[i]->data_len); 261 if (!pd[i]) { 262 FSfree((char *) fhdr[i]); 263 FSfree((char *) pi[i]); 264 FSfree((char *) po[i]); 265 goto badmem; 266 } 267 /* get offsets */ 268 for (j=0; j<pi[i]->num_offsets; j++) 269 { 270 _FSReadPad(svr, (char *) &local_po, SIZEOF(fsPropOffset)); 271 po[i][j].name.position = local_po.name.position; 272 po[i][j].name.length = local_po.name.length; 273 po[i][j].value.position = local_po.value.position; 274 po[i][j].value.length = local_po.value.length; 275 po[i][j].type = local_po.type; 276 } 277 278 /* get prop data */ 279 if (FSProtocolVersion(svr) == 1) 280 _FSReadPad(svr, (char *) pd[i], pi[i]->data_len); 281 else 282 _FSRead(svr, (char *) pd[i], pi[i]->data_len); 283 284 if (FSProtocolVersion(svr) != 1) 285 { 286 /* get the name */ 287 if (!flist[i]) { 288 nbytes = (reply.nameLength + 3) & ~3; 289 _FSEatData(svr, (unsigned long) nbytes); 290 goto badmem; 291 } 292 _FSRead(svr, flist[i], (long) reply.nameLength); 293 flist[i][reply.nameLength] = '\0'; 294 295 nbytes = pi[i]->data_len + reply.nameLength; 296 _FSEatData(svr, (unsigned long) (((nbytes+3)&~3) - nbytes)); 297 } 298 /* avoid integer overflow */ 299 if (i > INT_MAX - 1) { 300 goto badmem; 301 } 302 } 303 *info = fhdr; 304 *count = i; 305 *pprops = pi; 306 *offsets = po; 307 *prop_data = pd; 308 SyncHandle(); 309 return flist; 310 311badmem: 312 for (j = (i - 1); j >= 0; j--) { 313 FSfree((char *) pi[j]); 314 FSfree((char *) po[j]); 315 FSfree((char *) pd[j]); 316 FSfree(flist[j]); 317 FSfree((char *) fhdr[j]); 318 } 319 if (flist) 320 FSfree((char *) flist); 321 if (fhdr) 322 FSfree((char *) fhdr); 323 if (pi) 324 FSfree((char *) pi); 325 if (po) 326 FSfree((char *) po); 327 if (pd) 328 FSfree((char *) pd); 329 330 331clearwire: 332 do { 333 fsPropInfo ti; 334 335 _FSEatData(svr, (reply.nameLength + 3) & ~3); 336 _FSReadPad(svr, (char *) &ti, SIZEOF(fsPropInfo)); 337 _FSEatData(svr, (SIZEOF(fsPropOffset) * ti.num_offsets)); 338 _FSEatData(svr, ti.data_len); 339 } while (_FSReply(svr, (fsReply *) & reply, 340 ((SIZEOF(fsListFontsWithXInfoReply) 341 - SIZEOF(fsGenericReply)) >> 2), fsFalse) && (reply.nameLength != 0)); 342 SyncHandle(); 343 return (char **) NULL; 344} 345