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Revision 1.5 by root, Sun Oct 8 16:51:51 2006 UTC vs.
Revision 1.44 by root, Sun Jul 1 05:00:20 2007 UTC

1/* 1/*
2 CrossFire, A Multiplayer game for X-windows 2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3 3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
4 Copyright (C) 2001 Mark Wedel 5 * Copyright (©) 2001,2007 Mark Wedel
5 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
6 7 *
7 This program is free software; you can redistribute it and/or modify 8 * Crossfire TRT is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version. 11 * (at your option) any later version.
11 12 *
12 This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details. 16 * GNU General Public License for more details.
16 17 *
17 You should have received a copy of the GNU General Public License 18 * You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 *
20
21 The author can be reached via e-mail to <crossfire@schmorp.de> 21 * The authors can be reached via e-mail to <crossfire@schmorp.de>
22*/ 22 */
23 23
24/** \file 24/** \file
25 * Image related communication 25 * Image related communication
26 * 26 *
27 * \date 2003-12-02 27 * \date 2003-12-02
33 */ 33 */
34 34
35#include <global.h> 35#include <global.h>
36#include <sproto.h> 36#include <sproto.h>
37 37
38#include <newclient.h> 38#include "crc.h"
39#include <newserver.h>
40#include <loader.h>
41 39
42#define MAX_FACE_SETS 20 /**< Maximum number of image sets the program will handle */ 40#define MAX_FACE_SETS 20 /**< Maximum number of image sets the program will handle */
43 41
44/** Information about one image */ 42/** Information about one image */
45typedef struct FaceInfo 43typedef struct FaceInfo
46{ 44{
47
48 uint8 *data; /**< image data */ 45 uint8 *data; /**< image data */
49
50 uint16 datalen; /**< length of the xpm data */ 46 uint16 datalen; /**< length of the xpm data */
51
52 uint32 checksum; /**< Checksum of face data */ 47 uint32 checksum; /**< Checksum of face data */
53} FaceInfo; 48} FaceInfo;
54 49
55/** Information about one face set */ 50/** Information about one face set */
56typedef struct 51typedef struct
57{ 52{
58
59 char *prefix; /**< */ 53 char *prefix; /**< */
60 char *fullname; 54 char *fullname;
61 55
62 uint8 fallback; /**< faceset to use when an image is not found in this faceset */ 56 uint8 fallback; /**< faceset to use when an image is not found in this faceset */
63 char *size; 57 char *size;
91 85
92 for (num = 0; num < MAX_FACE_SETS; num++) 86 for (num = 0; num < MAX_FACE_SETS; num++)
93 { 87 {
94 if (facesets[num].prefix) 88 if (facesets[num].prefix)
95 { 89 {
96 for (q = 0; q < nrofpixmaps; q++) 90 for (q = 0; q < faces.size (); q++)
97 if (facesets[num].faces[q].data) 91 if (facesets[num].faces[q].data)
98 free (facesets[num].faces[q].data); 92 free (facesets[num].faces[q].data);
93
99 free (facesets[num].prefix); 94 free (facesets[num].prefix);
100 free (facesets[num].fullname); 95 free (facesets[num].fullname);
101 free (facesets[num].size); 96 free (facesets[num].size);
102 free (facesets[num].extension); 97 free (facesets[num].extension);
103 free (facesets[num].comment); 98 free (facesets[num].comment);
133 if (!facesets[faceset].prefix) 128 if (!facesets[faceset].prefix)
134 { 129 {
135 LOG (llevError, "get_face_fallback called with unused set (%d)?\n", faceset); 130 LOG (llevError, "get_face_fallback called with unused set (%d)?\n", faceset);
136 return 0; /* use default set */ 131 return 0; /* use default set */
137 } 132 }
133
138 if (facesets[faceset].faces[imageno].data) 134 if (facesets[faceset].faces[imageno].data)
139 return faceset; 135 return faceset;
136
140 return get_face_fallback (facesets[faceset].fallback, imageno); 137 return get_face_fallback (facesets[faceset].fallback, imageno);
141} 138}
142 139
143/** 140/**
144 * Checks fallback are correctly defined. 141 * Checks fallback are correctly defined.
160 if (!facesets[fallback].prefix) 157 if (!facesets[fallback].prefix)
161 { 158 {
162 LOG (llevError, "Face set %d falls to non set faceset %d\n", faceset, fallback); 159 LOG (llevError, "Face set %d falls to non set faceset %d\n", faceset, fallback);
163 abort (); 160 abort ();
164 } 161 }
162
165 togo--; 163 togo--;
166 if (togo == 0) 164 if (togo == 0)
167 { 165 {
168 LOG (llevError, "Infinite loop found in facesets. aborting.\n"); 166 LOG (llevError, "Infinite loop found in facesets. aborting.\n");
169 abort (); 167 abort ();
170 } 168 }
169
171 check_faceset_fallback (fallback, togo); 170 check_faceset_fallback (fallback, togo);
172} 171}
173 172
174#define MAX_IMAGE_SIZE 10000 173#define MAX_IMAGE_SIZE 10000
175
176/**
177 * Loads all the image types into memory.
178 *
179 * This way, we can easily send them to the client. We should really do something
180 * better than abort on any errors - on the other hand, these are all fatal
181 * to the server (can't work around them), but the abort just seems a bit
182 * messy (exit would probably be better.)
183 *
184 * Couple of notes: We assume that the faces are in a continous block.
185 * This works fine for now, but this could perhaps change in the future
186 *
187 * Function largely rewritten May 2000 to be more general purpose.
188 * The server itself does not care what the image data is - to the server,
189 * it is just data it needs to allocate. As such, the code is written
190 * to do such.
191 */
192
193void
194read_client_images (void)
195{
196 char filename[400];
197 char buf[HUGE_BUF];
198 char *cp, *cps[7];
199 FILE *infile;
200 int num, len, compressed, fileno, i, badline;
201
202 memset (facesets, 0, sizeof (facesets));
203 sprintf (filename, "%s/image_info", settings.datadir);
204 if ((infile = open_and_uncompress (filename, 0, &compressed)) == NULL)
205 {
206 LOG (llevError, "Unable to open %s\n", filename);
207 abort ();
208 }
209 while (fgets (buf, HUGE_BUF - 1, infile) != NULL)
210 {
211 badline = 0;
212
213 if (buf[0] == '#')
214 continue;
215 if (!(cps[0] = strtok (buf, ":")))
216 badline = 1;
217 for (i = 1; i < 7; i++)
218 {
219 if (!(cps[i] = strtok (NULL, ":")))
220 badline = 1;
221 }
222 if (badline)
223 {
224 LOG (llevError, "Bad line in image_info file, ignoring line:\n %s", buf);
225 }
226 else
227 {
228 len = atoi (cps[0]);
229 if (len >= MAX_FACE_SETS)
230 {
231 LOG (llevError, "To high a setnum in image_info file: %d > %d\n", len, MAX_FACE_SETS);
232 abort ();
233 }
234 facesets[len].prefix = strdup_local (cps[1]);
235 facesets[len].fullname = strdup_local (cps[2]);
236 facesets[len].fallback = atoi (cps[3]);
237 facesets[len].size = strdup_local (cps[4]);
238 facesets[len].extension = strdup_local (cps[5]);
239 facesets[len].comment = strdup_local (cps[6]);
240 }
241 }
242 close_and_delete (infile, compressed);
243 for (i = 0; i < MAX_FACE_SETS; i++)
244 {
245 if (facesets[i].prefix)
246 check_faceset_fallback (i, MAX_FACE_SETS);
247 }
248 /* Loaded the faceset information - now need to load up the
249 * actual faces.
250 */
251
252 for (fileno = 0; fileno < MAX_FACE_SETS; fileno++)
253 {
254 /* if prefix is not set, this is not used */
255 if (!facesets[fileno].prefix)
256 continue;
257 facesets[fileno].faces = (FaceInfo *) calloc (nrofpixmaps, sizeof (FaceInfo));
258
259 sprintf (filename, "%s/crossfire.%d", settings.datadir, fileno);
260 LOG (llevDebug, "Loading image file %s\n", filename);
261
262 if ((infile = open_and_uncompress (filename, 0, &compressed)) == NULL)
263 {
264 LOG (llevError, "Unable to open %s\n", filename);
265 abort ();
266 }
267 while (fgets (buf, HUGE_BUF - 1, infile) != NULL)
268 {
269 if (strncmp (buf, "IMAGE ", 6) != 0)
270 {
271 LOG (llevError, "read_client_images:Bad image line - not IMAGE, instead\n%s", buf);
272 abort ();
273 }
274 num = atoi (buf + 6);
275 if (num < 0 || num >= nrofpixmaps)
276 {
277 LOG (llevError, "read_client_images: Image num %d not in 0..%d\n%s", num, nrofpixmaps, buf);
278 abort ();
279 }
280 /* Skip accross the number data */
281 for (cp = buf + 6; *cp != ' '; cp++);
282 len = atoi (cp);
283 if (len == 0 || len > MAX_IMAGE_SIZE)
284 {
285 LOG (llevError, "read_client_images: length not valid: %d > %d \n%s", len, MAX_IMAGE_SIZE, buf);
286 abort ();
287 }
288 /* We don't actualy care about the name of the image that
289 * is embedded in the image file, so just ignore it.
290 */
291 facesets[fileno].faces[num].datalen = len;
292 facesets[fileno].faces[num].data = (uint8 *) malloc (len);
293 if ((i = fread (facesets[fileno].faces[num].data, len, 1, infile)) != 1)
294 {
295 LOG (llevError, "read_client_images: Did not read desired amount of data, wanted %d, got %d\n%s", len, i, buf);
296 abort ();
297 }
298 facesets[fileno].faces[num].checksum = 0;
299 for (i = 0; i < len; i++)
300 {
301 ROTATE_RIGHT (facesets[fileno].faces[num].checksum);
302 facesets[fileno].faces[num].checksum += facesets[fileno].faces[num].data[i];
303 facesets[fileno].faces[num].checksum &= 0xffffffff;
304 }
305 }
306 close_and_delete (infile, compressed);
307 } /* For fileno < MAX_FACE_SETS */
308}
309 174
310/** 175/**
311 * Client tells us what type of faces it wants. Also sets 176 * Client tells us what type of faces it wants. Also sets
312 * the caching attribute. 177 * the caching attribute.
313 * 178 *
314 */ 179 */
315
316void 180void
317SetFaceMode (char *buf, int len, NewSocket * ns) 181SetFaceMode (char *buf, int len, client *ns)
318{ 182{
319 char tmp[256];
320
321 int mask = (atoi (buf) & CF_FACE_CACHE), mode = (atoi (buf) & ~CF_FACE_CACHE); 183 int mask = (atoi (buf) & CF_FACE_CACHE), mode = (atoi (buf) & ~CF_FACE_CACHE);
322 184
323 if (mode == CF_FACE_NONE) 185 if (mode == CF_FACE_NONE)
324 {
325 ns->facecache = 1; 186 ns->facecache = 1;
326 }
327 else if (mode != CF_FACE_PNG) 187 else if (mode != CF_FACE_PNG)
328 {
329 sprintf (tmp, "drawinfo %d %s", NDI_RED, "Warning - send unsupported face mode. Will use Png"); 188 ns->send_packet_printf ("drawinfo %d %s", NDI_RED, "Warning - send unsupported face mode. Will use Png");
330 Write_String_To_Socket (ns, tmp, strlen (tmp)); 189
331#ifdef ESRV_DEBUG
332 LOG (llevDebug, "SetFaceMode: Invalid mode from client: %d\n", mode);
333#endif
334 }
335 if (mask) 190 if (mask)
336 {
337 ns->facecache = 1; 191 ns->facecache = 1;
192}
193
194/**
195 * client requested an image. send it rate-limited
196 * before flushing.
197 */
198void
199AskFaceCmd (char *buf, int len, client *ns)
200{
201 int idx = 0, pri = 0;
202
203 sscanf (buf, "%d %d", &idx, &pri);
204
205 const facedata *d = face_data (idx, ns->faceset);
206
207 if (!d)
208 return; // doh
209
210 client::ixsend ix;
211
212 ix.pri = pri;
213 ix.idx = idx;
214 ix.ofs = d->data.size ();
215
216 // the by far most common case will be to insert
217 // right at the end, so no looping.
218 auto (i, ns->ixface.end ());
219 for (; i != ns->ixface.begin (); )
220 if (pri >= (--i)->pri)
221 break;
222
223 ns->ixface.insert (i, ix);
224}
225
226/**
227 * Tells client the picture it has to use
228 * to smooth a picture number given as argument.
229 */
230void
231AskSmooth (char *buf, int len, client *ns)
232{
233 ns->send_face (atoi (buf));
234 ns->flush_fx ();
235}
236
237// how lame
238static void print_facename (packet &sl, const facedata &d)
239{
240 for (int i = 0; i < CHKSUM_SIZE; ++i)
241 sl.printf ("%02x", d.chksum [i]);
242}
243
244// gcfclient uses the server-provided checksum for comparison, but always
245// writes a broken checksum to its cache file, so we have to provide
246// gcfclient with the same broken (and useless) checksum just to have it
247// cache the image despite its bugs.
248static uint32 gcfclient_checksum (const facedata *d)
249{
250 uint32 csum = 0;
251
252 for (std::string::const_iterator i = d->data.begin ();
253 i != d->data.end ();
254 ++i)
338 } 255 {
339} 256 csum = rotate_right (csum);
257 csum += *(uint8 *)&*i;
258 }
340 259
341/** 260 return csum;
342 * Client has requested pixmap that it somehow missed getting.
343 * This will be called often if the client is
344 * caching images.
345 */
346
347void
348SendFaceCmd (char *buff, int len, NewSocket * ns)
349{
350 long tmpnum = atoi (buff);
351 short facenum = tmpnum & 0xffff;
352
353 if (facenum != 0)
354 esrv_send_face (ns, facenum, 1);
355} 261}
356 262
357/** 263/**
358 * Sends a face to a client if they are in pixmap mode 264 * Sends a face to a client if they are in pixmap mode
359 * nothing gets sent in bitmap mode. 265 * nothing gets sent in bitmap mode.
360 * If nocache is true (nonzero), ignore the cache setting from the client - 266 * If nocache is true (nonzero), ignore the cache setting from the client -
361 * this is needed for the askface, in which we really do want to send the 267 * this is needed for the askface, in which we really do want to send the
362 * face (and askface is the only place that should be setting it). Otherwise, 268 * face (and askface is the only place that should be setting it). Otherwise,
363 * we look at the facecache, and if set, send the image name. 269 * we look at the facecache, and if set, send the image name.
364 */ 270 */
365
366void 271void
367esrv_send_face (NewSocket * ns, short face_num, int nocache) 272client::send_face (faceidx facenum)
368{ 273{
369 SockList sl; 274 // never send face 0. ever. it does not exist.
370 char fallback; 275 if (!facenum)
276 return;
371 277
372 if (face_num <= 0 || face_num >= nrofpixmaps) 278 const facedata *d = face_data (facenum, faceset);
279
280 if (!d)
373 { 281 {
374 LOG (llevError, "esrv_send_face (%d) out of bounds??\n", face_num); 282 LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum);
375 return; 283 return;
376 } 284 }
377 285
378 sl.buf = (unsigned char *) malloc (MAXSOCKBUF); 286 if (faces_sent[facenum])
379 fallback = get_face_fallback (ns->faceset, face_num); 287 return;
380 288
381 if (facesets[fallback].faces[face_num].data == NULL) 289 faces_sent[facenum] = true;
290
291 // if for some reason we let a client without face caching connect,
292 // we better support that decision here and implement it.
293 if (!facecache)
294 return send_image (facenum);
295
296 if (fxix)
382 { 297 {
383 LOG (llevError, "esrv_send_face: faces[%d].data == NULL\n", face_num); 298 fxface.push_back (facenum);
384 return; 299 return;
385 } 300 }
386 301
387 if (ns->facecache && !nocache) 302 packet sl;
388 {
389 if (ns->image2)
390 strcpy ((char *) sl.buf, "face2 ");
391 else if (ns->sc_version >= 1026)
392 strcpy ((char *) sl.buf, "face1 ");
393 else
394 strcpy ((char *) sl.buf, "face ");
395 303
396 sl.len = strlen ((const char *) sl.buf); 304 if (force_face0)
397 SockList_AddShort (&sl, face_num); 305 sl << "face " << uint16 (facenum);
398 if (ns->image2) 306 else if (image2)
399 SockList_AddChar (&sl, fallback); 307 sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
400 if (ns->sc_version >= 1026)
401 SockList_AddInt (&sl, facesets[fallback].faces[face_num].checksum);
402 strcpy ((char *) sl.buf + sl.len, new_faces[face_num].name);
403 sl.len += strlen (new_faces[face_num].name);
404 Send_With_Handling (ns, &sl);
405 }
406 else 308 else
407 { 309 sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
408 if (ns->image2) 310
409 strcpy ((char *) sl.buf, "image2 "); 311 // how lame
410 else 312 print_facename (sl, *d);
411 strcpy ((char *) sl.buf, "image "); 313 send_packet (sl);
412 sl.len = strlen ((char *) sl.buf); 314
413 SockList_AddInt (&sl, face_num); 315 if (EMI_smooth)
414 if (ns->image2)
415 SockList_AddChar (&sl, fallback);
416 SockList_AddInt (&sl, facesets[fallback].faces[face_num].datalen);
417 memcpy (sl.buf + sl.len, facesets[fallback].faces[face_num].data, facesets[fallback].faces[face_num].datalen);
418 sl.len += facesets[fallback].faces[face_num].datalen;
419 Send_With_Handling (ns, &sl);
420 } 316 {
421 ns->faces_sent[face_num] |= NS_FACESENT_FACE; 317 faceinfo *f = face_info (facenum);
422 free (sl.buf); 318
319 if (f->smooth)
320 {
321 send_face (f->smooth);
322
323 packet sl ("smooth");
324
325 sl << uint16 (facenum)
326 << uint16 (f->smooth);
327
328 send_packet (sl);
329 }
330 }
331}
332
333void client::flush_fx ()
334{
335 while (!fxface.empty ())
336 {
337 packet fx ("fx");
338 packet sx ("sx");
339
340 do
341 {
342 faceidx facenum = fxface.back (); fxface.pop_back ();
343
344 const facedata *d = face_data (facenum, faceset);
345
346 if (d)
347 {
348 fx << ber32 (facenum)
349 << data8 (d->chksum, CHKSUM_SIZE);
350
351 if (smoothing)
352 {
353 faceinfo *f = face_info (facenum);
354
355 if (f->smooth)
356 {
357 send_face (f->smooth);
358 sx << ber32 (facenum)
359 << ber32 (f->smooth)
360 << ber32 (f->smoothlevel);
361 }
362 }
363 }
364 }
365 while (!fxface.empty ()
366 && fx.room () > ber32::size + CHKSUM_SIZE + 1
367 && sx.room () > ber32::size * 3);
368
369 send_packet (fx);
370 if (sx.length () > 3) send_packet (sx);
371 }
372}
373
374void
375client::send_image (faceidx facenum)
376{
377 // never send face 0. ever. it does not exist.
378 if (!facenum)
379 return;
380
381 const facedata *d = face_data (facenum, faceset);
382
383 faces_sent[facenum] = true;
384
385 if (!d)
386 {
387 LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum);
388 return;
389 }
390
391 //TODO: check type here?
392
393 if (force_image_newmap)
394 force_newmap = true;
395
396 packet sl;
397
398 sl << (image2 ? "image2 " : "image ")
399 << uint32 (facenum);
400
401 if (image2)
402 sl << uint8 (0);
403
404 sl << uint32 (d->data.size ())
405 << data (d->data.data (), d->data.size ());
406
407 send_packet (sl);
408}
409
410// send all faces of this object to the client
411// this uses more bandwidth initially, but makes
412// animations look much smoother, and every client
413// is supposed to do client-side caching anyways.
414void
415client::send_faces (object *ob)
416{
417 send_face (ob->face);
418
419 if (ob->animation_id)
420 {
421 animation &anim = animations [ob->animation_id];
422
423 for (int i = 0; i < anim.num_animations; i++)
424 send_face (anim.faces [i]);
425 }
426}
427
428/**
429 * Need to send an animation sequence to the client.
430 * We will send appropriate face commands to the client if we haven't
431 * sent them the face yet (this can become quite costly in terms of
432 * how much we are sending - on the other hand, this should only happen
433 * when the player logs in and picks stuff up.
434 */
435void
436client::send_animation (short anim_num)
437{
438 /* Do some checking on the anim_num we got. Note that the animations
439 * are added in contigous order, so if the number is in the valid
440 * range, it must be a valid animation.
441 */
442 if (anim_num < 0 || anim_num >= animations.size ())
443 {
444 LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num);
445 return;
446 }
447
448 packet sl ("anim");
449
450 sl << uint16 (anim_num)
451 << uint16 (0); /* flags - not used right now */
452
453 /* Build up the list of faces. Also, send any information (ie, the
454 * the face itself) down to the client.
455 */
456 for (int i = 0; i < animations[anim_num].num_animations; i++)
457 {
458 send_face (animations[anim_num].faces[i]);
459 sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */
460 }
461
462 send_packet (sl);
463
464 anims_sent[anim_num] = 1;
423} 465}
424 466
425/** 467/**
426 * Sends the number of images, checksum of the face file, 468 * Sends the number of images, checksum of the face file,
427 * and the image_info file information. See the doc/Developers/protocol 469 * and the image_info file information. See the doc/Developers/protocol
428 * if you want further detail. 470 * if you want further detail.
429 */ 471 */
430
431void 472void
432send_image_info (NewSocket * ns, char *params) 473send_image_info (client *ns, char *params)
433{ 474{
434 SockList sl; 475 packet sl;
435 int i;
436 476
437 sl.buf = (unsigned char *) malloc (MAXSOCKBUF); 477 //TODO: second parameter is a checksum, but it makes no sense in this current framework
478 sl.printf ("replyinfo image_info\n%d\n%u\n", MAX_FACES, 0);
438 479
439 sprintf ((char *) sl.buf, "replyinfo image_info\n%d\n%d\n", nrofpixmaps - 1, bmaps_checksum); 480 sl << "0:base:standard:0:32x32:none:The old 32x32 faceset.\n";
440 for (i = 0; i < MAX_FACE_SETS; i++) 481
441 { 482 ns->send_packet (sl);
442 if (facesets[i].prefix)
443 {
444 sprintf ((char *) sl.buf + strlen ((const char *) sl.buf), "%d:%s:%s:%d:%s:%s:%s",
445 i, facesets[i].prefix, facesets[i].fullname, facesets[i].fallback,
446 facesets[i].size, facesets[i].extension, facesets[i].comment);
447 }
448 }
449 sl.len = strlen ((const char *) sl.buf);
450 Send_With_Handling (ns, &sl);
451 free (sl.buf);
452} 483}
453 484
454/** 485/**
455 * Sends requested face information. 486 * Sends requested face information.
456 * \param ns socket to send to 487 * \param ns socket to send to
459 * For each image in [start..stop] sends 490 * For each image in [start..stop] sends
460 * - checksum 491 * - checksum
461 * - name 492 * - name
462 */ 493 */
463void 494void
464send_image_sums (NewSocket * ns, char *params) 495send_image_sums (client *ns, char *params)
465{ 496{
466 int start, stop; 497 int start, stop;
467 short i;
468 char qq; 498 char *cp;
469 char *cp, buf[MAX_BUF];
470 SockList sl;
471 499
472 sl.buf = (unsigned char *) malloc (MAXSOCKBUF); 500 packet sl;
473 501
474 start = atoi (params); 502 start = atoi (params);
475 for (cp = params; *cp != '\0'; cp++) 503 for (cp = params; *cp != '\0'; cp++)
476 if (*cp == ' ') 504 if (*cp == ' ')
477 break; 505 break;
478 506
479 stop = atoi (cp); 507 stop = atoi (cp);
480 if (stop < start || *cp == '\0' || (stop - start) > 1000 || stop >= nrofpixmaps) 508 if (stop < start || *cp == '\0' || (stop - start) > 1000 || stop >= MAX_FACES)
481 { 509 {
482 sprintf (buf, "replyinfo image_sums %d %d", start, stop); 510 sl.printf ("replyinfo image_sums %d %d", start, stop);
483 cs_write_string (ns, buf, strlen (buf)); 511 ns->send_packet (sl);
512 sl.reset ();
484 return; 513 return;
485 } 514 }
515
486 sprintf ((char *) sl.buf, "replyinfo image_sums %d %d ", start, stop); 516 sl.printf ("replyinfo image_sums %d %d ", start, stop);
487 517
488 sl.len = strlen ((const char *) sl.buf); 518 for (int i = start; i <= stop && i < faces.size (); i++)
489
490 for (i = start; i <= stop; i++)
491 {
492 SockList_AddShort (&sl, i);
493 ns->faces_sent[i] |= NS_FACESENT_FACE;
494
495 qq = get_face_fallback (ns->faceset, i);
496 SockList_AddInt (&sl, facesets[qq].faces[i].checksum);
497 SockList_AddChar (&sl, qq);
498
499 qq = strlen (new_faces[i].name);
500 SockList_AddChar (&sl, (char) (qq + 1));
501 strcpy ((char *) sl.buf + sl.len, new_faces[i].name);
502 sl.len += qq;
503 SockList_AddChar (&sl, 0);
504 } 519 {
520 ns->faces_sent[i] = true;
521
522 const facedata *d = face_data (i, ns->faceset);
523
524 if (sl.room () < 2 + 4 + 1 + d->data.size () + 1)
525 break;
526
527 sl << uint16 (i)
528 << uint32 (0) // checksum
529 << uint8 (ns->faceset);
530
531 print_facename (sl, *d); sl << uint8 (0);
532 }
533
505 /* It would make more sense to catch this pre-emptively in the code above. 534 /* It would make more sense to catch this pre-emptively in the code above.
506 * however, if this really happens, we probably just want to cut down the 535 * however, if this really happens, we probably just want to cut down the
507 * size to less than 1000, since that is what we claim the protocol would 536 * size to less than 1000, since that is what we claim the protocol would
508 * support. 537 * support.
509 */ 538 */
539 //TODO: taken care of above, should simply abort or make sure the above code is correct
510 if (sl.len >= MAXSOCKBUF) 540 if (sl.length () >= MAXSOCKBUF)
511 { 541 {
512 LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.len, MAXSOCKBUF); 542 LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.length (), MAXSOCKBUF);
513 abort (); 543 abort ();
514 } 544 }
515 Send_With_Handling (ns, &sl); 545
516 free (sl.buf); 546 ns->send_packet (sl);
517} 547}
548

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