FSQGlyphs.c revision ba6a1819
1/* $Xorg: FSQGlyphs.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/FSQGlyphs.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 54#ifdef HAVE_CONFIG_H 55#include <config.h> 56#endif 57#include "FSlibint.h" 58 59int 60FSQueryXBitmaps8( 61 FSServer *svr, 62 Font fid, 63 FSBitmapFormat format, 64 Bool range_type, 65 unsigned char *str, 66 unsigned long str_len, 67 FSOffset **offsets, 68 unsigned char **glyphdata) 69{ 70 fsQueryXBitmaps8Req *req; 71 fsQueryXBitmaps8Reply reply; 72 FSOffset *offs; 73 fsOffset32 local_offs; 74 unsigned char *gd; 75 int left; 76 int i; 77 78 GetReq(QueryXBitmaps8, req); 79 req->fid = fid; 80 req->range = range_type; 81 req->format = format; 82 req->num_ranges = str_len; 83 req->length += (str_len + 3) >> 2; 84 _FSSend(svr, (char *) str, str_len); 85 86 /* get back the info */ 87 if (!_FSReply(svr, (fsReply *) & reply, 88 (SIZEOF(fsQueryXBitmaps8Reply) - SIZEOF(fsGenericReply)) >> 2, fsFalse)) 89 return FSBadAlloc; 90 91#if SIZE_MAX <= UINT_MAX 92 if (reply.num_chars > SIZE_MAX / sizeof(FSOffset)) 93 return FSBadAlloc; 94#endif 95 96 offs = (FSOffset *) FSmalloc(sizeof(FSOffset) * reply.num_chars); 97 *offsets = offs; 98 if (!offs) 99 return FSBadAlloc; 100#if (SIZE_MAX >> 2) <= UINT_MAX 101 /* XXX This thest is incomplete */ 102 if (reply.length > (SIZE_MAX >> 2)) { 103 FSfree((char *) offs); 104 return FSBadAlloc; 105 } 106#endif 107 left = (reply.length << 2) - SIZEOF(fsQueryXBitmaps8Reply) 108 - (SIZEOF(fsOffset32) * reply.num_chars); 109 gd = (unsigned char *) FSmalloc(left); 110 *glyphdata = gd; 111 if (!gd) { 112 FSfree((char *) offs); 113 return FSBadAlloc; 114 } 115 for (i=0; i<reply.num_chars; i++) 116 { 117 _FSReadPad(svr, (char *) &local_offs, (SIZEOF(fsOffset32))); 118 offs->position = local_offs.position; 119 offs->length = local_offs.length; 120 offs++; 121 } 122 _FSReadPad(svr, (char *) gd, left); 123 124 SyncHandle(); 125 return FSSuccess; 126} 127 128int 129FSQueryXBitmaps16( 130 FSServer *svr, 131 Font fid, 132 FSBitmapFormat format, 133 Bool range_type, 134 FSChar2b *str, 135 unsigned long str_len, 136 FSOffset **offsets, 137 unsigned char **glyphdata) 138{ 139 fsQueryXBitmaps16Req *req; 140 fsQueryXBitmaps16Reply reply; 141 FSOffset *offs; 142 fsOffset32 local_offs; 143 unsigned char *gd; 144 int left; 145 int i; 146 147 GetReq(QueryXBitmaps16, req); 148 req->fid = fid; 149 req->range = range_type; 150 req->format = format; 151 req->num_ranges = str_len; 152 req->length += ((str_len * SIZEOF(fsChar2b)) + 3) >> 2; 153 if (FSProtocolVersion(svr) == 1) 154 { 155 int i; 156 fsChar2b_version1 *swapped_str; 157 158 if (str_len > SIZE_MAX/SIZEOF(fsChar2b_version1)) 159 return FSBadAlloc; 160 swapped_str = (fsChar2b_version1 *) 161 FSmalloc(SIZEOF(fsChar2b_version1) * str_len); 162 if (!swapped_str) 163 return FSBadAlloc; 164 for (i = 0; i < str_len; i++) { 165 swapped_str[i].low = str[i].low; 166 swapped_str[i].high = str[i].high; 167 } 168 _FSSend(svr, (char *)swapped_str, (str_len*SIZEOF(fsChar2b_version1))); 169 FSfree(swapped_str); 170 } else 171 _FSSend(svr, (char *) str, (str_len * SIZEOF(fsChar2b))); 172 173 /* get back the info */ 174 if (!_FSReply(svr, (fsReply *) & reply, 175 (SIZEOF(fsQueryXBitmaps16Reply) - SIZEOF(fsGenericReply)) >> 2, 176 fsFalse)) 177 return FSBadAlloc; 178 179#if SIZE_MAX <= UINT_MAX 180 if(reply.num_chars > SIZE_MAX/sizeof(FSOffset)) 181 return FSBadAlloc; 182#endif 183 offs = (FSOffset *) FSmalloc(sizeof(FSOffset) * reply.num_chars); 184 *offsets = offs; 185 if (!offs) 186 return FSBadAlloc; 187#if (SIZE_MAX >> 2) <= UINT_MAX 188 /* XXX - this test is incomplete */ 189 if (reply.length > (SIZE_MAX>>2)) { 190 FSfree((char *) offs); 191 return FSBadAlloc; 192 } 193#endif 194 left = (reply.length << 2) - SIZEOF(fsQueryXBitmaps16Reply) 195 - (SIZEOF(fsOffset32) * reply.num_chars); 196 gd = (unsigned char *) FSmalloc(left); 197 *glyphdata = gd; 198 if (!gd) { 199 FSfree((char *) offs); 200 return FSBadAlloc; 201 } 202 for (i=0; i<reply.num_chars; i++) 203 { 204 _FSReadPad(svr, (char *) &local_offs, (SIZEOF(fsOffset32))); 205 offs->position = local_offs.position; 206 offs->length = local_offs.length; 207 offs++; 208 } 209 _FSReadPad(svr, (char *) gd, left); 210 211 SyncHandle(); 212 return FSSuccess; 213} 214