| abstract
| - Below is the full text to restore.c from the source code of NetHack 3.0.0. To link to a particular line, write [[NetHack 3.0.0/restore.c#line123]], for example. Warning! This is the source code from an old release. For the latest release, see Source code 1. /* SCCS Id: @(#)restore.c 3.0 88/10/25 2. /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */ 3. /* NetHack may be freely redistributed. See license for details. */ 4. 5. #include "hack.h" 6. #include "lev.h" 7. 8. #ifdef WORM 9. #include "wseg.h" 10. #endif 11. 12. boolean restoring = FALSE; 13. static struct fruit *oldfruit; 14. static long omoves; 15. 16. /* 17. * "stuff" objects back into containers (relink the fcobj list). 18. */ 19. static void 20. stuff_objs(cobj) 21. register struct obj *cobj; 22. { 23. register struct obj *otmp, *otmp2; 24. 25. for(; cobj; cobj = cobj->nobj) 26. if(Is_container(cobj)) 27. 28. for(otmp = cobj->nobj; 29. otmp && otmp->cobj == (struct obj *) -1; otmp = otmp2) { 30. 31. otmp2 = otmp->nobj; 32. 33. otmp->cobj = cobj; 34. cobj->nobj = otmp2; 35. otmp->nobj = fcobj; 36. fcobj = otmp; 37. } 38. } 39. 40. static struct obj * 41. restobjchn(fd, ghostly) 42. register int fd; 43. boolean ghostly; 44. { 45. register struct obj *otmp, *otmp2; 46. register struct obj *first = 0; 47. register struct fruit *oldf; 48. int xl; 49. #ifdef LINT 50. /* suppress "used before set" warning from lint */ 51. otmp2 = 0; 52. #endif 53. while(1) { 54. mread(fd, (genericptr_t) &xl, sizeof(xl)); 55. if(xl == -1) break; 56. otmp = newobj(xl); 57. if(!first) first = otmp; 58. else otmp2->nobj = otmp; 59. mread(fd, (genericptr_t) otmp, (unsigned) xl + sizeof(struct obj)); 60. if(!otmp->o_id) otmp->o_id = flags.ident++; 61. if(ghostly && otmp->otyp == SLIME_MOLD) { 62. for(oldf=oldfruit; oldf; oldf=oldf->nextf) 63. if (oldf->fid == otmp->spe) break; 64. if(!oldf) impossible("no old fruit?"); 65. else otmp->spe = fruitadd(oldf->fname); 66. } 67. /* Ghost levels get object age shifted from old player's clock to 68. * new player's clock. Assumption: new player arrived immediately 69. * after old player died. 70. */ 71. if (ghostly) otmp->age = moves-omoves+otmp->age; 72. otmp2 = otmp; 73. } 74. if(first && otmp2->nobj){ 75. impossible("Restobjchn: error reading objchn."); 76. otmp2->nobj = 0; 77. } 78. 79. stuff_objs(first); 80. return(first); 81. } 82. 83. static struct monst * 84. restmonchn(fd, ghostly) 85. register int fd; 86. boolean ghostly; 87. { 88. register struct monst *mtmp, *mtmp2; 89. register struct monst *first = 0; 90. int xl; 91. 92. struct permonst *monbegin; 93. off_t differ; 94. 95. mread(fd, (genericptr_t)&monbegin, sizeof(monbegin)); 96. #ifndef MSDOS 97. differ = (genericptr_t)(&mons[0]) - (genericptr_t)(monbegin); 98. #else 99. differ = (long)(&mons[0]) - (long)(monbegin); 100. #endif 101. 102. #ifdef LINT 103. /* suppress "used before set" warning from lint */ 104. mtmp2 = 0; 105. #endif 106. while(1) { 107. mread(fd, (genericptr_t) &xl, sizeof(xl)); 108. if(xl == -1) break; 109. mtmp = newmonst(xl); 110. if(!first) first = mtmp; 111. else mtmp2->nmon = mtmp; 112. mread(fd, (genericptr_t) mtmp, (unsigned) xl + sizeof(struct monst)); 113. if(!mtmp->m_id) 114. mtmp->m_id = flags.ident++; 115. #ifndef MSDOS 116. /*ANSI type for differ is ptrdiff_t - long may be wrong*/ 117. /*for segmented architecture - may be better to cast pointers*/ 118. /*to (struct permonst *) rather than (genericptr_t)*/ 119. /*this code handles save file - so any bug should glow*/ 120. /*probably best not to keep lint from complaining*/ 121. /*#ifdef LINT /*possible compiler/hardware dependency - */ 122. /* if (differ) mtmp->data = NULL;*/ 123. /*#else*/ 124. mtmp->data = (struct permonst *) 125. ((genericptr_t)mtmp->data + differ); 126. /*#endif /*LINT*/ 127. #else 128. mtmp->data = (struct permonst *) 129. ((long) mtmp->data + differ); 130. #endif 131. if(mtmp->minvent) 132. mtmp->minvent = restobjchn(fd, ghostly); 133. mtmp2 = mtmp; 134. } 135. if(first && mtmp2->nmon){ 136. impossible("Restmonchn: error reading monchn."); 137. mtmp2->nmon = 0; 138. } 139. return(first); 140. } 141. 142. static void 143. restgenoinfo(fd) 144. register int fd; 145. { 146. register int i; 147. 148. for (i = 0; i < NUMMONS; i++) 149. mread(fd, (genericptr_t) &(mons[i].geno), sizeof(unsigned)); 150. } 151. 152. int 153. dorecover(fd) 154. register int fd; 155. { 156. register int nfd; 157. int tmp; /* not a register ! */ 158. xchar ltmp; 159. unsigned int mid; /* idem */ 160. struct obj *otmp; 161. struct fruit *fruit; 162. #ifdef MSDOS 163. struct flag oldflags; 164. 165. oldflags = flags; /* Save flags set in the config file */ 166. #endif 167. #ifdef ZEROCOMP 168. minit(); 169. #endif 170. restoring = TRUE; 171. getlev(fd, 0, (xchar)0, FALSE); 172. invent = restobjchn(fd, FALSE); 173. for(otmp = invent; otmp; otmp = otmp->nobj) 174. if(otmp->owornmask) 175. setworn(otmp, otmp->owornmask); 176. fallen_down = restmonchn(fd, FALSE); 177. restgenoinfo(fd); 178. mread(fd, (genericptr_t) &tmp, sizeof tmp); 179. #ifdef WIZARD 180. if(!wizard) 181. #endif 182. if(tmp != getuid()) { /* strange ... */ 183. (void) close(fd); 184. (void) unlink(SAVEF); 185. (void) puts("Saved game was not yours."); 186. restoring = FALSE; 187. return(0); 188. } 189. mread(fd, (genericptr_t) &flags, sizeof(struct flag)); 190. /* Some config file OPTIONS take precedence over those in save file. 191. */ 192. #ifdef MSDOS 193. #ifdef DGK 194. flags.rawio = oldflags.rawio; 195. #ifdef DECRAINBOW 196. flags.DECRainbow = oldflags.DECRainbow; 197. #endif /* DECRAINBOW */ 198. flags.IBMBIOS = oldflags.IBMBIOS; 199. #endif 200. #endif 201. mread(fd, (genericptr_t) &dlevel, sizeof dlevel); 202. mread(fd, (genericptr_t) &maxdlevel, sizeof maxdlevel); 203. mread(fd, (genericptr_t) &moves, sizeof moves); 204. mread(fd, (genericptr_t) &wiz_level, sizeof wiz_level); 205. mread(fd, (genericptr_t) &medusa_level, sizeof medusa_level); 206. #ifdef ORACLE 207. mread(fd, (genericptr_t) &oracle_level, sizeof oracle_level); 208. #endif 209. #ifdef REINCARNATION 210. mread(fd, (genericptr_t) &rogue_level, sizeof rogue_level); 211. if (dlevel==rogue_level) 212. savesyms = showsyms; 213. #endif 214. #ifdef STRONGHOLD 215. mread(fd, (genericptr_t) &stronghold_level, sizeof stronghold_level); 216. mread(fd, (genericptr_t) &tower_level, sizeof tower_level); 217. mread(fd, (genericptr_t) tune, sizeof tune); 218. # ifdef MUSIC 219. mread(fd, (genericptr_t) &music_heard, sizeof music_heard); 220. # endif 221. #endif 222. mread(fd, (genericptr_t) &is_maze_lev, sizeof is_maze_lev); 223. mread(fd, (genericptr_t) &u, sizeof(struct you)); 224. #ifdef SPELLS 225. mread(fd, (genericptr_t) spl_book, sizeof(struct spell) * (MAXSPELL + 1)); 226. #endif 227. if(u.ustuck) 228. mread(fd, (genericptr_t) &mid, sizeof mid); 229. mread(fd, (genericptr_t) pl_character, sizeof pl_character); 230. mread(fd, (genericptr_t) pl_fruit, sizeof pl_fruit); 231. mread(fd, (genericptr_t) ¤t_fruit, sizeof current_fruit); 232. ffruit = 0; 233. while (fruit = newfruit(), 234. mread(fd, (genericptr_t)fruit, sizeof(struct fruit)), 235. fruit->fid) { 236. fruit->nextf = ffruit; 237. ffruit = fruit; 238. } 239. free((genericptr_t) fruit); 240. 241. restnames(fd); 242. #ifdef DGK 243. msmsg("
"); 244. cl_end(); 245. msmsg("You got as far as level %d%s.
", maxdlevel, 246. flags.debug ? " in WIZARD mode" : 247. flags.explore ? " in discovery mode" : ""); 248. cl_end(); 249. msmsg("Restoring: "); 250. #endif 251. while(1) { 252. #ifdef ZEROCOMP 253. if(mread(fd, (genericptr_t) <mp, sizeof ltmp) < 0) 254. #else 255. if(read(fd, (genericptr_t) <mp, sizeof ltmp) != sizeof ltmp) 256. #endif 257. break; 258. getlev(fd, 0, ltmp, FALSE); 259. glo(ltmp); 260. #ifdef DGK 261. msmsg("."); 262. #endif 263. #if defined(MSDOS) && !defined(TOS) 264. nfd = open(lock, O_WRONLY | O_BINARY | O_CREAT | O_TRUNC, FCMASK); 265. #else 266. nfd = creat(lock, FCMASK); 267. #endif 268. if (nfd < 0) panic("Cannot open temp file %s!
", lock); 269. #if defined(DGK) && !defined(TOS) 270. if (!savelev(nfd, ltmp, COUNT | WRITE)) { 271. 272. /* The savelev can't proceed because the size required 273. * is greater than the available disk space. 274. */ 275. msmsg("
Not enough space on `%s' to restore your game.
", 276. levels); 277. 278. /* Remove levels and bones that may have been created. 279. */ 280. (void) close(nfd); 281. eraseall(levels, alllevels); 282. eraseall(levels, allbones); 283. 284. /* Perhaps the person would like to play without a 285. * RAMdisk. 286. */ 287. if (ramdisk) { 288. /* PlaywoRAMdisk may not return, but if it does 289. * it is certain that ramdisk will be 0. 290. */ 291. playwoRAMdisk(); 292. /* Rewind save file and try again */ 293. (void) lseek(fd, (off_t)0, 0); 294. return dorecover(fd); 295. } else { 296. msmsg("Be seeing you...
"); 297. exit(0); 298. } 299. } 300. #else 301. savelev(nfd, ltmp); 302. #endif 303. #ifdef ZEROCOMP 304. bflush(nfd); 305. #endif 306. (void) close(nfd); 307. } 308. #ifdef BSD 309. (void) lseek(fd, 0L, 0); 310. #else 311. (void) lseek(fd, (off_t)0, 0); 312. #endif 313. #ifdef ZEROCOMP 314. minit(); 315. #endif 316. getlev(fd, 0, (xchar)0, FALSE); 317. (void) close(fd); 318. #ifdef EXPLORE_MODE 319. if(!discover) 320. #endif 321. (void) unlink(SAVEF); 322. #ifdef REINCARNATION 323. /* this can't be done earlier because we need to check the initial 324. * showsyms against the one saved in each of the non-rogue levels */ 325. if (dlevel==rogue_level) 326. showsyms = defsyms; 327. #endif 328. if(u.ustuck) { 329. register struct monst *mtmp; 330. 331. for(mtmp = fmon; mtmp; mtmp = mtmp->nmon) 332. if(mtmp->m_id == mid) goto monfnd; 333. panic("Cannot find the monster ustuck."); 334. monfnd: 335. u.ustuck = mtmp; 336. } 337. setsee(); /* only to recompute seelx etc. - these weren't saved */ 338. #ifdef DGK 339. gameDiskPrompt(); 340. #endif 341. max_rank_sz(); /* to recompute mrank_sz (pri.c) */ 342. #ifdef POLYSELF 343. set_uasmon(); 344. #endif 345. /* take care of iron ball & chain */ 346. for(otmp = fobj; otmp; otmp = otmp->nobj) 347. if(otmp->owornmask) 348. setworn(otmp, otmp->owornmask); 349. docrt(); 350. restoring = FALSE; 351. return(1); 352. } 353. 354. void 355. getlev(fd, pid, lev, ghostly) 356. int fd, pid; 357. xchar lev; 358. boolean ghostly; 359. { 360. register struct gold *gold; 361. register struct trap *trap; 362. #ifdef WORM 363. register struct wseg *wtmp; 364. register int tmp; 365. #endif 366. long nhp; 367. int hpid; 368. xchar dlvl; 369. struct symbols osymbol; 370. int x, y; 371. uchar osym, nsym; 372. #ifdef TOS 373. short tlev; 374. #endif 375. 376. #ifdef MSDOS 377. setmode(fd, O_BINARY); /* is this required for TOS??? */ 378. #endif 379. /* Load the old fruit info. We have to do it first, so the infor- 380. * mation is available when restoring the objects. 381. */ 382. if (ghostly) { 383. struct fruit *fruit; 384. 385. oldfruit = 0; 386. while (fruit = newfruit(), 387. mread(fd, (genericptr_t)fruit, sizeof(struct fruit)), 388. fruit->fid) { 389. fruit->nextf = oldfruit; 390. oldfruit = fruit; 391. } 392. free((genericptr_t) fruit); 393. } 394. 395. /* First some sanity checks */ 396. mread(fd, (genericptr_t) &hpid, sizeof(hpid)); 397. #ifdef TOS 398. mread(fd, (genericptr_t) &tlev, sizeof(tlev)); 399. dlvl=tlev&0xff; 400. #else 401. mread(fd, (genericptr_t) &dlvl, sizeof(dlvl)); 402. #endif 403. if((pid && pid != hpid) || (lev && dlvl != lev)) { 404. pline("Strange, this map is not as I remember it."); 405. pline("Somebody is trying some trickery here..."); 406. pline("This game is void."); 407. done("tricked"); 408. } 409. 410. mread(fd, (genericptr_t) levl, sizeof(levl)); 411. mread(fd, (genericptr_t) &osymbol, sizeof(osymbol)); 412. if (memcmp((genericptr_t) &osymbol, 413. (genericptr_t) &showsyms, sizeof (struct symbols)) 414. #ifdef REINCARNATION 415. && dlvl != rogue_level 416. /* rogue level always uses default syms, and showsyms will still 417. * have its initial value from environment when restoring a 418. * game */ 419. #endif 420. ) { 421. for (x = 0; x < COLNO; x++) 422. for (y = 0; y < ROWNO; y++) { 423. osym = levl[x][y].scrsym; 424. nsym = 0; 425. switch (levl[x][y].typ) { 426. case STONE: 427. case SCORR: 428. if (osym == osymbol.stone) 429. nsym = showsyms.stone; 430. break; 431. case ROOM: 432. #ifdef STRONGHOLD 433. case DRAWBRIDGE_DOWN: 434. #endif /* STRONGHOLD /**/ 435. if (osym == osymbol.room) 436. nsym = showsyms.room; 437. break; 438. case DOOR: 439. if (osym == osymbol.door) 440. nsym = showsyms.door; 441. break; 442. case CORR: 443. if (osym == osymbol.corr) 444. nsym = showsyms.corr; 445. break; 446. case VWALL: 447. if (osym == osymbol.vwall) 448. nsym = showsyms.vwall; 449. #ifdef STRONGHOLD 450. else if (osym == osymbol.dbvwall) 451. nsym = showsyms.dbvwall; 452. #endif 453. break; 454. case HWALL: 455. if (osym == osymbol.hwall) 456. nsym = showsyms.hwall; 457. #ifdef STRONGHOLD 458. else if (osym == osymbol.dbhwall) 459. nsym = showsyms.dbhwall; 460. #endif 461. break; 462. case TLCORNER: 463. if (osym == osymbol.tlcorn) 464. nsym = showsyms.tlcorn; 465. break; 466. case TRCORNER: 467. if (osym == osymbol.trcorn) 468. nsym = showsyms.trcorn; 469. break; 470. case BLCORNER: 471. if (osym == osymbol.blcorn) 472. nsym = showsyms.blcorn; 473. break; 474. case BRCORNER: 475. if (osym == osymbol.brcorn) 476. nsym = showsyms.brcorn; 477. break; 478. case SDOOR: 479. if (osym == osymbol.vwall) 480. nsym = showsyms.vwall; 481. else if (osym == osymbol.hwall) 482. nsym = showsyms.hwall; 483. break; 484. case CROSSWALL: 485. if (osym == osymbol.crwall) 486. nsym = showsyms.crwall; 487. break; 488. case TUWALL: 489. if (osym == osymbol.tuwall) 490. nsym = showsyms.tuwall; 491. break; 492. case TDWALL: 493. if (osym == osymbol.tdwall) 494. nsym = showsyms.tdwall; 495. break; 496. case TLWALL: 497. if (osym == osymbol.tlwall) 498. nsym = showsyms.tlwall; 499. break; 500. case TRWALL: 501. if (osym == osymbol.trwall) 502. nsym = showsyms.trwall; 503. break; 504. case STAIRS: 505. if (osym == osymbol.upstair) 506. nsym = showsyms.upstair; 507. else if (osym == osymbol.dnstair) 508. nsym = showsyms.dnstair; 509. break; 510. #ifdef STRONGHOLD 511. case LADDER: 512. if (osym == osymbol.upladder) 513. nsym = showsyms.upladder; 514. else if (osym == osymbol.dnladder) 515. nsym = showsyms.dnladder; 516. break; 517. #endif /* STRONGHOLD /**/ 518. case POOL: 519. case MOAT: 520. #ifdef STRONGHOLD 521. case DRAWBRIDGE_UP: 522. #endif /* STRONGHOLD /**/ 523. if (osym == osymbol.pool) 524. nsym = showsyms.pool; 525. break; 526. #ifdef FOUNTAINS 527. case FOUNTAIN: 528. if (osym == osymbol.fountain) 529. nsym = showsyms.fountain; 530. break; 531. #endif /* FOUNTAINS /**/ 532. #ifdef THRONES 533. case THRONE: 534. if (osym == osymbol.throne) 535. nsym = showsyms.throne; 536. break; 537. #endif /* THRONES /**/ 538. #ifdef SINKS 539. case SINK: 540. if (osym == osymbol.sink) 541. nsym = showsyms.sink; 542. break; 543. #endif /* SINKS /**/ 544. #ifdef ALTARS 545. case ALTAR: 546. if (osym == osymbol.altar) 547. nsym = showsyms.altar; 548. break; 549. #endif /* ALTARS /**/ 550. default: 551. break; 552. } 553. if (nsym) 554. levl[x][y].scrsym = nsym; 555. } 556. } 557. 558. mread(fd, (genericptr_t)&omoves, sizeof(omoves)); 559. mread(fd, (genericptr_t)&xupstair, sizeof(xupstair)); 560. mread(fd, (genericptr_t)&yupstair, sizeof(yupstair)); 561. mread(fd, (genericptr_t)&xdnstair, sizeof(xdnstair)); 562. mread(fd, (genericptr_t)&ydnstair, sizeof(ydnstair)); 563. #ifdef STRONGHOLD 564. mread(fd, (genericptr_t)&xupladder, sizeof(xupladder)); 565. mread(fd, (genericptr_t)&yupladder, sizeof(yupladder)); 566. mread(fd, (genericptr_t)&xdnladder, sizeof(xdnladder)); 567. mread(fd, (genericptr_t)&ydnladder, sizeof(ydnladder)); 568. #endif 569. mread(fd, (genericptr_t)&fountsound, sizeof(fountsound)); 570. mread(fd, (genericptr_t)&sinksound, sizeof(sinksound)); 571. fmon = restmonchn(fd, ghostly); 572. 573. /* regenerate animals while on another level */ 574. { long tmoves = (moves > omoves) ? moves-omoves : 0; 575. register struct monst *mtmp, *mtmp2; 576. 577. for(mtmp = fmon; mtmp; mtmp = mtmp2) { 578. 579. mtmp2 = mtmp->nmon; 580. if(mtmp->data->geno & G_GENOD) { 581. mondead(mtmp); 582. continue; 583. } 584. 585. if (ghostly) { 586. /* reset peaceful/malign relative to new character */ 587. if(!mtmp->isshk) 588. /* shopkeepers will reset based on name */ 589. mtmp->mpeaceful = peace_minded(mtmp->data); 590. set_malign(mtmp); 591. } else if (mtmp->mtame && tmoves > 250) 592. mtmp->mtame = mtmp->mpeaceful = 0; 593. 594. /* restore shape changers - Maarten Jan Huisjes */ 595. if (mtmp->data == &mons[PM_CHAMELEON] 596. && !Protection_from_shape_changers 597. && !mtmp->cham) 598. mtmp->cham = 1; 599. else if(Protection_from_shape_changers) { 600. if (mtmp->cham) { 601. mtmp->cham = 0; 602. (void) newcham(mtmp, &mons[PM_CHAMELEON]); 603. } else if(is_were(mtmp->data) && !is_human(mtmp->data)) 604. (void) new_were(mtmp); 605. } 606. 607. if (!ghostly) { 608. nhp = mtmp->mhp + 609. (regenerates(mtmp->data) ? tmoves : tmoves/20); 610. if(nhp > mtmp->mhpmax) 611. mtmp->mhp = mtmp->mhpmax; 612. else 613. #ifdef LINT /* (long)newhp -> (schar = short int) mhp; ok in context of text above */ 614. mtmp->mhp = 0; 615. #else 616. mtmp->mhp = nhp; 617. #endif 618. } 619. } 620. } 621. 622. setgd(); 623. fgold = 0; 624. while(gold = newgold(), 625. mread(fd, (genericptr_t)gold, sizeof(struct gold)), 626. gold->gx) { 627. gold->ngold = fgold; 628. fgold = gold; 629. } 630. free((genericptr_t) gold); 631. ftrap = 0; 632. while (trap = newtrap(), 633. mread(fd, (genericptr_t)trap, sizeof(struct trap)), 634. trap->tx) { 635. trap->ntrap = ftrap; 636. ftrap = trap; 637. } 638. free((genericptr_t) trap); 639. fobj = restobjchn(fd, ghostly); 640. billobjs = restobjchn(fd, ghostly); 641. rest_engravings(fd); 642. mread(fd, (genericptr_t)rooms, sizeof(rooms)); 643. mread(fd, (genericptr_t)doors, sizeof(doors)); 644. #ifdef WORM 645. mread(fd, (genericptr_t)wsegs, sizeof(wsegs)); 646. for(tmp = 1; tmp < 32; tmp++) if(wsegs[tmp]){ 647. wheads[tmp] = wsegs[tmp] = wtmp = newseg(); 648. while(1) { 649. mread(fd, (genericptr_t)wtmp, sizeof(struct wseg)); 650. if(!wtmp->nseg) break; 651. wheads[tmp]->nseg = wtmp = newseg(); 652. wheads[tmp] = wtmp; 653. } 654. } 655. mread(fd, (genericptr_t)wgrowtime, sizeof(wgrowtime)); 656. #endif 657. /* Now get rid of all the temp fruits... */ 658. if (ghostly) { 659. struct fruit *fruit; 660. 661. while(oldfruit) { 662. fruit = oldfruit->nextf; 663. free((genericptr_t) oldfruit); 664. oldfruit = fruit; 665. } 666. } 667. } 668. 669. #ifdef ZEROCOMP 670. #define RLESC '\0' /* Leading character for run of RLESC's */ 671. 672. static unsigned char inbuf[BUFSZ]; 673. static unsigned short inbufp = 0; 674. static unsigned short inbufsz = 0; 675. static short inrunlength = -1; 676. static int mreadfd; 677. 678. static int 679. mgetc() 680. { 681. if (inbufp >= inbufsz) { 682. inbufsz = read(mreadfd, (genericptr_t)inbuf, (int)sizeof inbuf); 683. if (!inbufsz) { 684. if (inbufp > sizeof inbuf) 685. error("EOF on file #%d.
", mreadfd); 686. inbufp = 1 + sizeof inbuf; /* exactly one warning :-) */ 687. return -1; 688. } 689. inbufp = 0; 690. } 691. return inbuf[inbufp++]; 692. } 693. 694. void 695. minit() 696. { 697. inbufsz = 0; 698. inbufp = 0; 699. inrunlength = -1; 700. } 701. 702. int 703. mread(fd, buf, len) 704. int fd; 705. register genericptr_t buf; 706. register unsigned len; 707. { 708. /*register int readlen = 0;*/ 709. mreadfd = fd; 710. while (len--) { 711. if (inrunlength > 0) { 712. inrunlength--; 713. *((char *)buf)++ = '\0'; 714. } else { 715. register short ch = mgetc(); 716. if (ch < 0) return -1; /*readlen;*/ 717. if ((*((char *)buf)++ = ch) == RLESC) { 718. inrunlength = mgetc(); 719. } 720. } 721. /*readlen++;*/ 722. } 723. return 0; /*readlen;*/ 724. } 725. 726. #else /* ZEROCOMP */ 727. 728. void 729. mread(fd, buf, len) 730. register int fd; 731. register genericptr_t buf; 732. register unsigned int len; 733. { 734. register int rlen; 735. 736. #if defined(BSD) || defined(ULTRIX) 737. rlen = read(fd, buf, (int) len); 738. if(rlen != len){ 739. #else /* e.g. SYSV, __TURBOC__ */ 740. rlen = read(fd, buf, (unsigned) len); 741. if((unsigned)rlen != len){ 742. #endif 743. pline("Read %d instead of %u bytes.
", rlen, len); 744. if(restoring) { 745. (void) unlink(SAVEF); 746. error("Error restoring old game."); 747. } 748. panic("Error reading level file."); 749. } 750. } 751. #endif /* ZEROCOMP */
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