1 /* NetHack 3.6 recover.c $NHDT-Date: 1432512785 2015/05/25 00:13:05 $ $NHDT-Branch: master $:$NHDT-Revision: 1.15 $ */
2 /* Copyright (c) Janet Walz, 1992. */
3 /* NetHack may be freely redistributed. See license for details. */
6 * Utility for reconstructing NetHack save file from a set of individual
7 * level files. Requires that the `checkpoint' option be enabled at the
8 * time NetHack creates those level files.
11 #if !defined(O_WRONLY) && !defined(LSC) && !defined(AZTEC_C)
20 extern int FDECL(vms_creat, (const char *, unsigned));
21 extern int FDECL(vms_open, (const char *, int, unsigned));
24 int FDECL(restore_savefile, (char *));
25 void FDECL(set_levelfile_name, (int));
26 int FDECL(open_levelfile, (int));
27 int NDECL(create_savefile);
28 void FDECL(copy_bytes, (int, int));
31 #define Fprintf (void) fprintf
33 #define Fprintf (void) nhce_message
34 static void nhce_message(FILE *, const char *, ...);
37 #define Close (void) close
40 #define SAVESIZE (PL_NSIZ + 13) /* save/99999player.e */
43 #define SAVESIZE (PL_NSIZ + 22) /* [.save]<uid>player.e;1 */
46 #define SAVESIZE (PL_NSIZ + 40) /* username-player.NetHack-saved-game */
48 #define SAVESIZE FILENAME /* from macconf.h or pcconf.h */
54 char *FDECL(exepath, (char *));
57 #if defined(__BORLANDC__) && !defined(_WIN32)
58 extern unsigned _stklen = STKSIZ;
61 savename[SAVESIZE]; /* holds relative path of save file from playground */
69 const char *dir = (char *) 0;
71 char *startdir = (char *) 0;
75 dir = getenv("NETHACKDIR");
77 dir = getenv("HACKDIR");
80 dir = exepath(argv[0]);
82 if (argc == 1 || (argc == 2 && !strcmp(argv[1], "-"))) {
83 Fprintf(stderr, "Usage: %s [ -d directory ] base1 [ base2 ... ]\n",
85 #if defined(WIN32) || defined(MSDOS)
89 "\t(Unless you override it with -d, recover will look \n");
90 Fprintf(stderr, "\t in the %s directory on your system)\n", dir);
97 if (!strncmp(argv[argno], "-d", 2)) {
98 dir = argv[argno] + 2;
99 if (*dir == '=' || *dir == ':')
101 if (!*dir && argc > argno) {
107 "%s: flag -d must be followed by a directory name.\n",
113 #if defined(SECURE) && !defined(VMS)
116 && strcmp(dir, HACKDIR)
119 #pragma GCC diagnostic push
120 #pragma GCC diagnostic ignored "-Wunused-result"
121 (void) setgid(getgid());
122 (void) setuid(getuid());
123 #pragma GCC diagnostic pop
125 #endif /* SECURE && !VMS */
133 startdir = getcwd(0, 255);
135 if (dir && chdir((char *) dir) < 0) {
136 Fprintf(stderr, "%s: cannot chdir to %s.\n", argv[0], dir);
140 while (argc > argno) {
141 if (restore_savefile(argv[argno]) == 0)
142 Fprintf(stderr, "recovered \"%s\" to %s\n", argv[argno],
148 (void) chdir(startdir);
155 static char lock[256];
158 set_levelfile_name(lev)
163 tf = rindex(lock, '.');
165 tf = lock + strlen(lock);
166 (void) sprintf(tf, ".%d", lev);
168 (void) strcat(tf, ";1");
178 set_levelfile_name(lev);
179 #if defined(MICRO) || defined(WIN32) || defined(MSDOS)
180 fd = open(lock, O_RDONLY | O_BINARY);
182 fd = open(lock, O_RDONLY, 0);
192 #if defined(MICRO) || defined(WIN32) || defined(MSDOS)
193 fd = open(savename, O_WRONLY | O_BINARY | O_CREAT | O_TRUNC, FCMASK);
195 fd = creat(savename, FCMASK);
208 nfrom = read(ifd, buf, BUFSIZ);
209 nto = write(ofd, buf, nfrom);
211 Fprintf(stderr, "file copy failed!\n");
214 } while (nfrom == BUFSIZ);
218 restore_savefile(basename)
222 int lev, savelev, hpid, pltmpsiz;
224 struct version_info version_data;
225 struct savefile_info sfi;
228 /* level 0 file contains:
229 * pid of creating process (ignored here)
230 * level number for current level of save file
231 * name of save file nethack would have created
236 (void) strcpy(lock, basename);
237 gfd = open_levelfile(0);
239 #if defined(WIN32) && !defined(WIN_CE)
240 if (errno == EACCES) {
243 "\nThere are files from a game in progress under your name.");
244 Fprintf(stderr, "\nThe files are locked or inaccessible.");
245 Fprintf(stderr, "\nPerhaps the other game is still running?\n");
247 Fprintf(stderr, "\nTrouble accessing level 0 (errno = %d).\n",
250 Fprintf(stderr, "Cannot open level 0 for %s.\n", basename);
253 if (read(gfd, (genericptr_t) &hpid, sizeof hpid) != sizeof hpid) {
255 stderr, "%s\n%s%s%s\n",
256 "Checkpoint data incompletely written or subsequently clobbered;",
257 "recovery for \"", basename, "\" impossible.");
261 if (read(gfd, (genericptr_t) &savelev, sizeof(savelev))
262 != sizeof(savelev)) {
263 Fprintf(stderr, "Checkpointing was not in effect for %s -- recovery "
269 if ((read(gfd, (genericptr_t) savename, sizeof savename)
271 || (read(gfd, (genericptr_t) &version_data, sizeof version_data)
272 != sizeof version_data)
273 || (read(gfd, (genericptr_t) &sfi, sizeof sfi) != sizeof sfi)
274 || (read(gfd, (genericptr_t) &pltmpsiz, sizeof pltmpsiz)
275 != sizeof pltmpsiz) || (pltmpsiz > PL_NSIZ)
276 || (read(gfd, (genericptr_t) &plbuf, pltmpsiz) != pltmpsiz)) {
277 Fprintf(stderr, "Error reading %s -- can't recover.\n", lock);
282 /* save file should contain:
286 * current level (including pets)
287 * (non-level-based) game state
290 sfd = create_savefile();
292 Fprintf(stderr, "Cannot create savefile %s.\n", savename);
297 lfd = open_levelfile(savelev);
299 Fprintf(stderr, "Cannot open level of save for %s.\n", basename);
305 if (write(sfd, (genericptr_t) &version_data, sizeof version_data)
306 != sizeof version_data) {
307 Fprintf(stderr, "Error writing %s; recovery failed.\n", savename);
313 if (write(sfd, (genericptr_t) &sfi, sizeof sfi) != sizeof sfi) {
315 "Error writing %s; recovery failed (savefile_info).\n",
322 if (write(sfd, (genericptr_t) &pltmpsiz, sizeof pltmpsiz)
323 != sizeof pltmpsiz) {
325 "Error writing %s; recovery failed (player name size).\n",
332 if (write(sfd, (genericptr_t) &plbuf, pltmpsiz) != pltmpsiz) {
333 Fprintf(stderr, "Error writing %s; recovery failed (player name).\n",
340 copy_bytes(lfd, sfd);
344 copy_bytes(gfd, sfd);
346 set_levelfile_name(0);
349 for (lev = 1; lev < 256; lev++) {
350 /* level numbers are kept in xchars in save.c, so the
351 * maximum level number (for the endlevel) must be < 256
353 if (lev != savelev) {
354 lfd = open_levelfile(lev);
356 /* any or all of these may not exist */
358 #pragma GCC diagnostic push
359 #pragma GCC diagnostic ignored "-Wunused-result"
360 write(sfd, (genericptr_t) &levc, sizeof(levc));
361 #pragma GCC diagnostic pop
362 copy_bytes(lfd, sfd);
371 #if 0 /* OBSOLETE, HackWB is no longer in use */
373 /* we need to create an icon for the saved game
374 * or HackWB won't notice the file.
377 char iconfile[FILENAME];
380 (void) sprintf(iconfile, "%s.info", savename);
381 in = open("NetHack:default.icon", O_RDONLY);
382 out = open(iconfile, O_WRONLY | O_TRUNC | O_CREAT);
383 if(in > -1 && out > -1){
386 if(in > -1)close(in);
387 if(out > -1)close(out);
396 #define PATH_SEPARATOR '/'
398 #define PATH_SEPARATOR '\\'
401 #define EXEPATHBUFSZ 256
402 char exepathbuf[EXEPATHBUFSZ];
413 bsize = EXEPATHBUFSZ;
420 TCHAR wbuf[EXEPATHBUFSZ];
421 GetModuleFileName((HANDLE) 0, wbuf, EXEPATHBUFSZ);
422 NH_W2A(wbuf, tmp, bsize);
425 *(tmp + GetModuleFileName((HANDLE) 0, tmp, bsize)) = '\0';
428 tmp2 = strrchr(tmp, PATH_SEPARATOR);
437 const char amiga_version_string[] = AMIGA_VERSION_STRING;
442 nhce_message(FILE *f, const char *str, ...)
445 TCHAR wbuf[NHSTR_BUFSIZE];
446 char buf[NHSTR_BUFSIZE];
449 vsprintf(buf, str, ap);
452 MessageBox(NULL, NH_A2W(buf, wbuf, NHSTR_BUFSIZE), TEXT("Recover"),