/* SCCS Id: @(#)files.c 3.3 2000/04/27 */ /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */ /* NetHack may be freely redistributed. See license for details. */ #include "hack.h" #include "dlb.h" #include #if !defined(MAC) && !defined(O_WRONLY) && !defined(AZTEC_C) #include #endif #if defined(UNIX) || defined(VMS) #include # ifndef SKIP_ERRNO extern int errno; # endif #include #endif #if defined(MSDOS) || defined(OS2) || defined(TOS) || defined(WIN32) # ifndef GNUDOS #include # else #include # endif #endif #ifndef O_BINARY /* used for micros, no-op for others */ # define O_BINARY 0 #endif #ifdef PREFIXES_IN_USE #define FQN_NUMBUF 2 static char fqn_filename_buffer[FQN_NUMBUF][FQN_MAX_FILENAME]; #endif #if !defined(MFLOPPY) && !defined(VMS) && !defined(WIN32) char bones[] = "bonesnn.xxx"; char lock[PL_NSIZ+14] = "1lock"; /* long enough for uid+name+.99 */ #else # if defined(MFLOPPY) char bones[FILENAME]; /* pathname of bones files */ char lock[FILENAME]; /* pathname of level files */ # endif # if defined(VMS) char bones[] = "bonesnn.xxx;1"; char lock[PL_NSIZ+17] = "1lock"; /* long enough for _uid+name+.99;1 */ # endif # if defined(WIN32) char bones[] = "bonesnn.xxx"; char lock[PL_NSIZ+25]; /* long enough for username+-+name+.99 */ # endif #endif #if defined(UNIX) || defined(__BEOS__) #define SAVESIZE (PL_NSIZ + 13) /* save/99999player.e */ #else # ifdef VMS #define SAVESIZE (PL_NSIZ + 22) /* [.save]player.e;1 */ # else # if defined(WIN32) #define SAVESIZE (PL_NSIZ + 40) /* username-player.NetHack-saved-game */ # else #define SAVESIZE FILENAME /* from macconf.h or pcconf.h */ # endif # endif #endif char SAVEF[SAVESIZE]; /* holds relative path of save file from playground */ #ifdef MICRO char SAVEP[SAVESIZE]; /* holds path of directory for save file */ #endif #ifdef AMIGA extern char PATH[]; /* see sys/amiga/amidos.c */ extern char bbs_id[]; static int lockptr; # ifdef __SASC_60 #include # endif #include #endif #if defined(WIN32) || defined(MSDOS) static int lockptr; # ifdef MSDOS #define Delay(a) msleep(a) # endif #define Close close #define DeleteFile unlink #endif extern int n_dgns; /* from dungeon.c */ STATIC_DCL char *FDECL(set_bonesfile_name, (char *,d_level*)); STATIC_DCL char *NDECL(set_bonestemp_name); #ifdef COMPRESS STATIC_DCL void FDECL(redirect, (char *,char *,FILE *,BOOLEAN_P)); STATIC_DCL void FDECL(docompress_file, (char *,BOOLEAN_P)); #endif STATIC_DCL char *FDECL(make_lockname, (const char *,char *)); STATIC_DCL FILE *FDECL(fopen_config_file, (const char *)); STATIC_DCL int FDECL(get_uchars, (FILE *,char *,char *,uchar *,int,const char *)); int FDECL(parse_config_line, (FILE *,char *,char *,char *)); #ifdef NOCWD_ASSUMPTIONS STATIC_DCL void FDECL(adjust_prefix, (char *, int)); #endif #ifndef PREFIXES_IN_USE /*ARGSUSED*/ #endif const char * fqname(basename, whichprefix, buffnum) const char *basename; int whichprefix, buffnum; { #ifndef PREFIXES_IN_USE return basename; #else if (!basename || whichprefix < 0 || whichprefix >= PREFIX_COUNT) return basename; if (!fqn_prefix[whichprefix]) return basename; if (buffnum < 0 || buffnum >= FQN_NUMBUF) { impossible("Invalid fqn_filename_buffer specified: %d", buffnum); buffnum = 0; } if (strlen(fqn_prefix[whichprefix]) + strlen(basename) >= FQN_MAX_FILENAME) { impossible("fqname too long: %s + %s", fqn_prefix[whichprefix], basename); return basename; /* XXX */ } Strcpy(fqn_filename_buffer[buffnum], fqn_prefix[whichprefix]); return strcat(fqn_filename_buffer[buffnum], basename); #endif } /* fopen a file, with OS-dependent bells and whistles */ /* NOTE: a simpler version of this routine also exists in util/dlb_main.c */ FILE * fopen_datafile(filename, mode, use_scoreprefix) const char *filename, *mode; boolean use_scoreprefix; { FILE *fp; #ifdef AMIGA fp = fopenp(filename, mode); #else filename = fqname(filename, use_scoreprefix ? SCOREPREFIX : DATAPREFIX, 0); # ifdef VMS /* essential to have punctuation, to avoid logical names */ { char tmp[BUFSIZ]; if (!index(filename, '.') && !index(filename, ';')) filename = strcat(strcpy(tmp, filename), ";0"); fp = fopen(filename, mode, "mbc=16"); } # else fp = fopen(filename, mode); # endif #endif return fp; } /* ---------- BEGIN LEVEL FILE HANDLING ----------- */ #ifdef MFLOPPY /* Set names for bones[] and lock[] */ void set_lock_and_bones() { if (!ramdisk) { Strcpy(levels, permbones); Strcpy(bones, permbones); } append_slash(permbones); append_slash(levels); #ifdef AMIGA strncat(levels, bbs_id, PATHLEN); #endif append_slash(bones); #ifndef AMIGA /* We'll want bones & levels in the user specified directory -jhsa */ Strcat(bones, "bonesnn.*"); #endif Strcpy(lock, levels); #ifndef AMIGA Strcat(lock, alllevels); #endif return; } #endif /* MFLOPPY */ /* Construct a file name for a level-type file, which is of the form * something.level (with any old level stripped off). * This assumes there is space on the end of 'file' to append * a two digit number. This is true for 'level' * but be careful if you use it for other things -dgk */ void set_levelfile_name(file, lev) char *file; int lev; { char *tf; tf = rindex(file, '.'); if (!tf) tf = eos(file); Sprintf(tf, ".%d", lev); #ifdef VMS Strcat(tf, ";1"); #endif return; } int create_levelfile(lev) int lev; { int fd; const char *fq_lock; set_levelfile_name(lock, lev); fq_lock = fqname(lock, LEVELPREFIX, 0); #if defined(MICRO) /* Use O_TRUNC to force the file to be shortened if it already * exists and is currently longer. */ fd = open(fq_lock, O_WRONLY |O_CREAT | O_TRUNC | O_BINARY, FCMASK); #else # ifdef MAC fd = maccreat(fq_lock, LEVL_TYPE); # else fd = creat(fq_lock, FCMASK); # endif #endif /* MICRO */ if (fd >= 0) level_info[lev].flags |= LFILE_EXISTS; return fd; } int open_levelfile(lev) int lev; { int fd; const char *fq_lock; set_levelfile_name(lock, lev); fq_lock = fqname(lock, LEVELPREFIX, 0); #ifdef MFLOPPY /* If not currently accessible, swap it in. */ if (level_info[lev].where != ACTIVE) swapin_file(lev); #endif #ifdef MAC fd = macopen(fq_lock, O_RDONLY | O_BINARY, LEVL_TYPE); #else fd = open(fq_lock, O_RDONLY | O_BINARY, 0); #endif return fd; } void delete_levelfile(lev) int lev; { /* * Level 0 might be created by port specific code that doesn't * call create_levfile(), so always assume that it exists. */ if (lev == 0 || (level_info[lev].flags & LFILE_EXISTS)) { set_levelfile_name(lock, lev); (void) unlink(fqname(lock, LEVELPREFIX, 0)); level_info[lev].flags &= ~LFILE_EXISTS; } } void clearlocks() { #if !defined(PC_LOCKING) && defined(MFLOPPY) && !defined(AMIGA) eraseall(levels, alllevels); if (ramdisk) eraseall(permbones, alllevels); #else register int x; # if defined(UNIX) || defined(VMS) (void) signal(SIGHUP, SIG_IGN); # endif /* can't access maxledgerno() before dungeons are created -dlc */ for (x = (n_dgns ? maxledgerno() : 0); x >= 0; x--) delete_levelfile(x); /* not all levels need be present */ #endif } /* ---------- END LEVEL FILE HANDLING ----------- */ /* ---------- BEGIN BONES FILE HANDLING ----------- */ /* set up "file" to be file name for retrieving bones, and return a * bonesid to be read/written in the bones file. */ STATIC_OVL char * set_bonesfile_name(file, lev) char *file; d_level *lev; { s_level *sptr; char *dptr; #ifdef AMIGA char bonetmp[16]; #endif #ifdef AMIGA /* We'll want the bones go the user defined Levels directory -jhsa */ /* permbones should be subsumed by fqn_prefix[BONESPREFIX] */ Sprintf(bonetmp, "bon%c%s", dungeons[lev->dnum].boneid, In_quest(lev) ? urole.filecode : "0"); Strcpy(file, permbones); Strcat(file, bonetmp); #else Sprintf(file, "bon%c%s", dungeons[lev->dnum].boneid, In_quest(lev) ? urole.filecode : "0"); #endif dptr = eos(file); if ((sptr = Is_special(lev)) != 0) Sprintf(dptr, ".%c", sptr->boneid); else Sprintf(dptr, ".%d", lev->dlevel); #ifdef VMS Strcat(dptr, ";1"); #endif return(dptr-2); } /* set up temporary file name for writing bones, to avoid another game's * trying to read from an uncompleted bones file. we want an uncontentious * name, so use one in the namespace reserved for this game's level files. * (we are not reading or writing level files while writing bones files, so * the same array may be used instead of copying.) */ STATIC_OVL char * set_bonestemp_name() { char *tf; tf = rindex(lock, '.'); if (!tf) tf = eos(lock); Sprintf(tf, ".bn"); #ifdef VMS Strcat(tf, ";1"); #endif return lock; } int create_bonesfile(lev, bonesid) d_level *lev; char **bonesid; { const char *file; int fd; *bonesid = set_bonesfile_name(bones, lev); file = set_bonestemp_name(); file = fqname(file, BONESPREFIX, 0); #ifdef MICRO /* Use O_TRUNC to force the file to be shortened if it already * exists and is currently longer. */ fd = open(file, O_WRONLY |O_CREAT | O_TRUNC | O_BINARY, FCMASK); #else # ifdef MAC fd = maccreat(file, BONE_TYPE); # else fd = creat(file, FCMASK); # endif # if defined(VMS) && !defined(SECURE) /* Re-protect bones file with world:read+write+execute+delete access. umask() doesn't seem very reliable; also, vaxcrtl won't let us set delete access without write access, which is what's really wanted. Can't simply create it with the desired protection because creat ANDs the mask with the user's default protection, which usually denies some or all access to world. */ (void) chmod(file, FCMASK | 007); /* allow other users full access */ # endif /* VMS && !SECURE */ #endif /* MICRO */ return fd; } #ifdef MFLOPPY /* remove partial bonesfile in process of creation */ void cancel_bonesfile() { const char *tempname; tempname = set_bonestemp_name(); tempname = fqname(tempname, BONESPREFIX, 0); (void) unlink(tempname); } #endif /* MFLOPPY */ /* move completed bones file to proper name */ void commit_bonesfile(lev) d_level *lev; { const char *fq_bones, *tempname; int ret; (void) set_bonesfile_name(bones, lev); fq_bones = fqname(bones, BONESPREFIX, 0); tempname = set_bonestemp_name(); tempname = fqname(tempname, BONESPREFIX, 1); #if (defined(SYSV) && !defined(SVR4)) || defined(GENIX) /* old SYSVs don't have rename. Some SVR3's may, but since they * also have link/unlink, it doesn't matter. :-) */ (void) unlink(fq_bones); ret = link(tempname, fq_bones); ret += unlink(tempname); #else ret = rename(tempname, fq_bones); #endif #ifdef WIZARD if (wizard && ret != 0) pline("couldn't rename %s to %s", tempname, fq_bones); #endif } int open_bonesfile(lev, bonesid) d_level *lev; char **bonesid; { const char *fq_bones; int fd; *bonesid = set_bonesfile_name(bones, lev); fq_bones = fqname(bones, BONESPREFIX, 0); uncompress(fq_bones); /* no effect if nonexistent */ #ifdef MAC fd = macopen(fq_bones, O_RDONLY | O_BINARY, BONE_TYPE); #else fd = open(fq_bones, O_RDONLY | O_BINARY, 0); #endif return fd; } int delete_bonesfile(lev) d_level *lev; { (void) set_bonesfile_name(bones, lev); return !(unlink(fqname(bones, BONESPREFIX, 0)) < 0); } /* assume we're compressing the recently read or created bonesfile, so the * file name is already set properly */ void compress_bonesfile() { compress(fqname(bones, BONESPREFIX, 0)); } /* ---------- END BONES FILE HANDLING ----------- */ /* ---------- BEGIN SAVE FILE HANDLING ----------- */ /* set savefile name in OS-dependent manner from pre-existing plname, * avoiding troublesome characters */ void set_savefile_name() { #ifdef VMS Sprintf(SAVEF, "[.save]%d%s", getuid(), plname); regularize(SAVEF+7); Strcat(SAVEF, ";1"); #else # if defined(MICRO) && !defined(WIN32) Strcpy(SAVEF, SAVEP); # ifdef AMIGA strncat(SAVEF, bbs_id, PATHLEN); # endif { int i = strlen(SAVEP); # ifdef AMIGA /* plname has to share space with SAVEP and ".sav" */ (void)strncat(SAVEF, plname, FILENAME - i - 4); # else (void)strncat(SAVEF, plname, 8); # endif regularize(SAVEF+i); } Strcat(SAVEF, ".sav"); # else # if defined(WIN32) Sprintf(SAVEF,"%s-%s.NetHack-saved-game",get_username(0), plname); # else Sprintf(SAVEF, "save/%d%s", (int)getuid(), plname); regularize(SAVEF+5); /* avoid . or / in name */ # endif /* WIN32 */ # endif /* MICRO */ #endif /* VMS */ } #ifdef INSURANCE void save_savefile_name(fd) int fd; { (void) write(fd, (genericptr_t) SAVEF, sizeof(SAVEF)); } #endif #if defined(WIZARD) && !defined(MICRO) /* change pre-existing savefile name to indicate an error savefile */ void set_error_savefile() { # ifdef VMS { char *semi_colon = rindex(SAVEF, ';'); if (semi_colon) *semi_colon = '\0'; } Strcat(SAVEF, ".e;1"); # else # ifdef MAC Strcat(SAVEF, "-e"); # else Strcat(SAVEF, ".e"); # endif # endif } #endif /* create save file, overwriting one if it already exists */ int create_savefile() { const char *fq_save; int fd; #ifdef AMIGA fd = ami_wbench_getsave(O_WRONLY | O_CREAT | O_TRUNC); #else fq_save = fqname(SAVEF, SAVEPREFIX, 0); # ifdef MICRO fd = open(fq_save, O_WRONLY | O_BINARY | O_CREAT | O_TRUNC, FCMASK); # else # ifdef MAC fd = maccreat(fq_save, SAVE_TYPE); # else fd = creat(fq_save, FCMASK); # endif # if defined(VMS) && !defined(SECURE) /* Make sure the save file is owned by the current process. That's the default for non-privileged users, but for priv'd users the file will be owned by the directory's owner instead of the user. */ # ifdef getuid /*(see vmsunix.c)*/ # undef getuid # endif (void) chown(fq_save, getuid(), getgid()); # endif /* VMS && !SECURE */ # endif /* MICRO */ #endif /* AMIGA */ return fd; } /* open savefile for reading */ int open_savefile() { const char *fq_save; int fd; #ifdef AMIGA fd = ami_wbench_getsave(O_RDONLY); #else fq_save = fqname(SAVEF, SAVEPREFIX, 0); # ifdef MAC fd = macopen(fq_save, O_RDONLY | O_BINARY, SAVE_TYPE); # else fd = open(fq_save, O_RDONLY | O_BINARY, 0); # endif #endif /* AMIGA */ return fd; } /* delete savefile */ int delete_savefile() { #ifdef AMIGA ami_wbench_unlink(SAVEF); #endif (void) unlink(fqname(SAVEF, SAVEPREFIX, 0)); return 0; /* for restore_saved_game() (ex-xxxmain.c) test */ } /* try to open up a save file and prepare to restore it */ int restore_saved_game() { const char *fq_save; int fd; set_savefile_name(); #ifdef MFLOPPY if ( # ifdef AMIGA !(FromWBench || saveDiskPrompt(1)) # else !saveDiskPrompt(1) # endif ) return -1; #endif /* MFLOPPY */ fq_save = fqname(SAVEF, SAVEPREFIX, 0); uncompress(fq_save); if ((fd = open_savefile()) < 0) return fd; if (!uptodate(fd, fq_save)) { (void) close(fd), fd = -1; (void) delete_savefile(); } return fd; } /* ---------- END SAVE FILE HANDLING ----------- */ /* ---------- BEGIN FILE COMPRESSION HANDLING ----------- */ #ifdef COMPRESS STATIC_OVL void redirect(filename, mode, stream, uncomp) char *filename, *mode; FILE *stream; boolean uncomp; { if (freopen(filename, mode, stream) == (FILE *)0) { (void) fprintf(stderr, "freopen of %s for %scompress failed\n", filename, uncomp ? "un" : ""); terminate(EXIT_FAILURE); } } /* * using system() is simpler, but opens up security holes and causes * problems on at least Interactive UNIX 3.0.1 (SVR3.2), where any * setuid is renounced by /bin/sh, so the files cannot be accessed. * * cf. child() in unixunix.c. */ STATIC_OVL void docompress_file(filename, uncomp) char *filename; boolean uncomp; { char cfn[80]; FILE *cf; const char *args[10]; # ifdef COMPRESS_OPTIONS char opts[80]; # endif int i = 0; int f; Strcpy(cfn, filename); # ifdef COMPRESS_EXTENSION Strcat(cfn, COMPRESS_EXTENSION); # endif /* when compressing, we know the file exists */ if (uncomp) { if ((cf = fopen(cfn, RDBMODE)) == (FILE *)0) return; (void) fclose(cf); } args[0] = COMPRESS; if (uncomp) args[++i] = "-d"; /* uncompress */ # ifdef COMPRESS_OPTIONS { /* we can't guarantee there's only one additional option, sigh */ char *opt; boolean inword = FALSE; Strcpy(opts, COMPRESS_OPTIONS); opt = opts; while (*opt) { if ((*opt == ' ') || (*opt == '\t')) { if (inword) { *opt = '\0'; inword = FALSE; } } else if (!inword) { args[++i] = opt; inword = TRUE; } opt++; } } # endif args[++i] = (char *)0; f = fork(); if (f == 0) { /* child */ /* run compressor without privileges, in case other programs * have surprises along the line of gzip once taking filenames * in GZIP. */ /* assume all compressors will compress stdin to stdout * without explicit filenames. this is true of at least * compress and gzip, those mentioned in config.h. */ if (uncomp) { redirect(cfn, RDBMODE, stdin, uncomp); redirect(filename, WRBMODE, stdout, uncomp); } else { redirect(filename, RDBMODE, stdin, uncomp); redirect(cfn, WRBMODE, stdout, uncomp); } (void) setgid(getgid()); (void) setuid(getuid()); (void) execv(args[0], (char *const *) args); perror((char *)0); (void) fprintf(stderr, "Exec to %scompress %s failed.\n", uncomp ? "un" : "", filename); terminate(EXIT_FAILURE); } else if (f == -1) { perror((char *)0); pline("Fork to %scompress %s failed.", uncomp ? "un" : "", filename); return; } (void) signal(SIGINT, SIG_IGN); (void) signal(SIGQUIT, SIG_IGN); (void) wait((int *)&i); (void) signal(SIGINT, (SIG_RET_TYPE) done1); # ifdef WIZARD if (wizard) (void) signal(SIGQUIT, SIG_DFL); # endif if (i == 0) { /* (un)compress succeeded: remove file left behind */ if (uncomp) (void) unlink(cfn); else (void) unlink(filename); } else { /* (un)compress failed; remove the new, bad file */ if (uncomp) { raw_printf("Unable to uncompress %s", filename); (void) unlink(filename); } else { /* no message needed for compress case; life will go on */ (void) unlink(cfn); } } } #endif /* COMPRESS */ /* compress file */ void compress(filename) const char *filename; { #ifndef COMPRESS #if defined(applec) || defined(__MWERKS__) # pragma unused(filename) #endif #else docompress_file(filename, FALSE); #endif } /* uncompress file if it exists */ void uncompress(filename) const char *filename; { #ifndef COMPRESS #if defined(applec) || defined(__MWERKS__) # pragma unused(filename) #endif #else docompress_file(filename, TRUE); #endif } /* ---------- END FILE COMPRESSION HANDLING ----------- */ /* ---------- BEGIN FILE LOCKING HANDLING ----------- */ static int nesting = 0; #ifdef NO_FILE_LINKS /* implies UNIX */ static int lockfd; /* for lock_file() to pass to unlock_file() */ #endif #define HUP if (!program_state.done_hup) STATIC_OVL char * make_lockname(filename, lockname) const char *filename; char *lockname; { #if defined(applec) || defined(__MWERKS__) # pragma unused(filename,lockname) return (char*)0; #else # if defined(UNIX) || defined(VMS) || defined(AMIGA) || defined(WIN32) || defined(MSDOS) # ifdef NO_FILE_LINKS Strcpy(lockname, LOCKDIR); Strcat(lockname, "/"); Strcat(lockname, filename); # else Strcpy(lockname, filename); # endif # ifdef VMS { char *semi_colon = rindex(lockname, ';'); if (semi_colon) *semi_colon = '\0'; } Strcat(lockname, ".lock;1"); # else Strcat(lockname, "_lock"); # endif return lockname; # else lockname[0] = '\0'; return (char*)0; # endif /* UNIX || VMS || AMIGA || WIN32 || MSDOS */ #endif } /* lock a file */ boolean lock_file(filename, whichprefix, retryct) const char *filename; int whichprefix; int retryct; { #if defined(applec) || defined(__MWERKS__) # pragma unused(filename, retryct) #endif char locknambuf[BUFSZ]; const char *lockname; nesting++; if (nesting > 1) { impossible("TRIED TO NEST LOCKS"); return TRUE; } lockname = make_lockname(filename, locknambuf); filename = fqname(filename, whichprefix, 0); #ifndef NO_FILE_LINKS /* LOCKDIR should be subsumed by LOCKPREFIX */ lockname = fqname(lockname, LOCKPREFIX, 1); #endif #if defined(UNIX) || defined(VMS) # ifdef NO_FILE_LINKS while ((lockfd = open(lockname, O_RDWR|O_CREAT|O_EXCL, 0666)) == -1) { # else while (link(filename, lockname) == -1) { # endif register int errnosv = errno; switch (errnosv) { /* George Barbanis */ case EEXIST: if (retryct--) { HUP raw_printf( "Waiting for access to %s. (%d retries left).", filename, retryct); # if defined(SYSV) || defined(ULTRIX) || defined(VMS) (void) # endif sleep(1); } else { HUP (void) raw_print("I give up. Sorry."); HUP raw_printf("Perhaps there is an old %s around?", lockname); nesting--; return FALSE; } break; case ENOENT: HUP raw_printf("Can't find file %s to lock!", filename); nesting--; return FALSE; case EACCES: HUP raw_printf("No write permission to lock %s!", filename); nesting--; return FALSE; # ifdef VMS /* c__translate(vmsfiles.c) */ case EPERM: /* could be misleading, but usually right */ HUP raw_printf("Can't lock %s due to directory protection.", filename); nesting--; return FALSE; # endif default: HUP perror(lockname); HUP raw_printf( "Cannot lock %s for unknown reason (%d).", filename, errnosv); nesting--; return FALSE; } } #endif /* UNIX || VMS */ #if defined(AMIGA) || defined(WIN32) || defined(MSDOS) lockptr = 0; while (retryct-- && !lockptr) { # ifdef AMIGA (void)DeleteFile(lockname); /* in case dead process was here first */ lockptr = Open(lockname,MODE_NEWFILE); # else lockptr = open(lockname, O_RDWR|O_CREAT|O_EXCL, S_IWRITE); # endif if (!lockptr) { raw_printf("Waiting for access to %s. (%d retries left).", filename, retryct); Delay(50); } } if (!retryct) { raw_printf("I give up. Sorry."); nesting--; return FALSE; } #endif /* AMIGA || WIN32 || MSDOS */ return TRUE; } #ifdef VMS /* for unlock_file, use the unlink() routine in vmsunix.c */ # ifdef unlink # undef unlink # endif # define unlink(foo) vms_unlink(foo) #endif /* unlock file, which must be currently locked by lock_file */ void unlock_file(filename) const char *filename; #if defined(applec) # pragma unused(filename) #endif { char locknambuf[BUFSZ]; const char *lockname; if (nesting == 1) { lockname = make_lockname(filename, locknambuf); #ifndef NO_FILE_LINKS /* LOCKDIR should be subsumed by LOCKPREFIX */ lockname = fqname(lockname, LOCKPREFIX, 1); #endif #if defined(UNIX) || defined(VMS) if (unlink(lockname) < 0) HUP raw_printf("Can't unlink %s.", lockname); # ifdef NO_FILE_LINKS (void) close(lockfd); # endif #endif /* UNIX || VMS */ #if defined(AMIGA) || defined(WIN32) || defined(MSDOS) if (lockptr) Close(lockptr); DeleteFile(lockname); lockptr = 0; #endif /* AMIGA || WIN32 || MSDOS */ } nesting--; } /* ---------- END FILE LOCKING HANDLING ----------- */ /* ---------- BEGIN CONFIG FILE HANDLING ----------- */ const char *configfile = #ifdef UNIX ".nethackrc"; #else # if defined(MAC) || defined(__BEOS__) "NetHack Defaults"; # else # if defined(MSDOS) || defined(WIN32) "defaults.nh"; # else "NetHack.cnf"; # endif # endif #endif #ifdef MSDOS /* conflict with speed-dial under windows * for XXX.cnf file so support of NetHack.cnf * is for backward compatibility only. * Preferred name (and first tried) is now defaults.nh but * the game will try the old name if there * is no defaults.nh. */ const char *backward_compat_configfile = "nethack.cnf"; #endif #ifndef MFLOPPY #define fopenp fopen #endif STATIC_OVL FILE * fopen_config_file(filename) const char *filename; { FILE *fp; #if defined(UNIX) || defined(VMS) char tmp_config[BUFSZ]; char *envp; #endif /* "filename" is an environment variable, so it should hang around */ /* if set, it is expected to be a full path name (if relevant) */ if (filename) { #ifdef UNIX if (access(filename, 4) == -1) { /* 4 is R_OK on newer systems */ /* nasty sneaky attempt to read file through * NetHack's setuid permissions -- this is the only * place a file name may be wholly under the player's * control */ raw_printf("Access to %s denied (%d).", filename, errno); wait_synch(); /* fall through to standard names */ } else #endif if ((fp = fopenp(filename, "r")) != (FILE *)0) { configfile = filename; return(fp); #if defined(UNIX) || defined(VMS) } else { /* access() above probably caught most problems for UNIX */ raw_printf("Couldn't open requested config file %s (%d).", filename, errno); wait_synch(); /* fall through to standard names */ #endif } } #if defined(MICRO) || defined(MAC) || defined(__BEOS__) if ((fp = fopenp(fqname(configfile, CONFIGPREFIX, 0), "r")) != (FILE *)0) return(fp); # ifdef MSDOS else if ((fp = fopenp(fqname(backward_compat_configfile, CONFIGPREFIX, 0), "r")) != (FILE *)0) return(fp); # endif #else /* constructed full path names don't need fqname() */ # ifdef VMS if ((fp = fopenp(fqname("nethackini", CONFIGPREFIX, 0), "r")) != (FILE *)0) { configfile = "nethackini"; return(fp); } if ((fp = fopenp("sys$login:nethack.ini", "r")) != (FILE *)0) { configfile = "nethack.ini"; return(fp); } envp = nh_getenv("HOME"); if (!envp) Strcpy(tmp_config, "NetHack.cnf"); else Sprintf(tmp_config, "%s%s", envp, "NetHack.cnf"); if ((fp = fopenp(tmp_config, "r")) != (FILE *)0) return(fp); # else /* should be only UNIX left */ envp = nh_getenv("HOME"); if (!envp) Strcpy(tmp_config, ".nethackrc"); else Sprintf(tmp_config, "%s/%s", envp, ".nethackrc"); if ((fp = fopenp(tmp_config, "r")) != (FILE *)0) return(fp); else if (errno != ENOENT) { /* e.g., problems when setuid NetHack can't search home * directory restricted to user */ raw_printf("Couldn't open default config file %s (%d).", tmp_config, errno); wait_synch(); } # endif #endif return (FILE *)0; } /* * Retrieve a list of integers from a file into a uchar array. * * NOTE: This routine is unable to read a value of 0. */ STATIC_OVL int get_uchars(fp, buf, bufp, list, size, name) FILE *fp; /* input file pointer */ char *buf; /* read buffer, must be of size BUFSZ */ char *bufp; /* current pointer */ uchar *list; /* return list */ int size; /* return list size */ const char *name; /* name of option for error message */ { unsigned int num = 0; int count = 0; while (1) { switch(*bufp) { case ' ': case '\0': case '\t': case '\n': if (num) { list[count++] = num; num = 0; } if (count == size || !*bufp) return count; bufp++; break; case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': num = num*10 + (*bufp-'0'); bufp++; break; case '\\': if (fp == (FILE *)0) goto gi_error; do { if (!fgets(buf, BUFSZ, fp)) goto gi_error; } while (buf[0] == '#'); bufp = buf; break; default: gi_error: raw_printf("Syntax error in %s", name); wait_synch(); return count; } } /*NOTREACHED*/ } #ifdef NOCWD_ASSUMPTIONS STATIC_OVL void adjust_prefix(bufp, prefixid) char *bufp; int prefixid; { char *ptr; if (!bufp) return; /* Backward compatibility, ignore trailing ;n */ if ((ptr = index(bufp, ';')) != 0) *ptr = '\0'; if (strlen(bufp) > 0) { fqn_prefix[prefixid] = (char *)alloc(strlen(bufp)+2); Strcpy(fqn_prefix[prefixid], bufp); append_slash(fqn_prefix[prefixid]); } } #endif #define match_varname(INP,NAM,LEN) match_optname(INP, NAM, LEN, TRUE) /*ARGSUSED*/ int parse_config_line(fp, buf, tmp_ramdisk, tmp_levels) FILE *fp; char *buf; char *tmp_ramdisk; char *tmp_levels; { #if defined(applec) || defined(__MWERKS__) # pragma unused(tmp_ramdisk,tmp_levels) #endif char *bufp, *altp; uchar translate[MAXPCHARS]; int len; if (*buf == '#') return 1; /* remove trailing whitespace */ bufp = eos(buf); while (--bufp > buf && isspace(*bufp)) continue; if (bufp <= buf) return 1; /* skip all-blank lines */ else *(bufp + 1) = '\0'; /* terminate line */ /* find the '=' or ':' */ bufp = index(buf, '='); altp = index(buf, ':'); if (!bufp || (altp && altp < bufp)) bufp = altp; if (!bufp) return 0; /* skip whitespace between '=' and value */ do { ++bufp; } while (isspace(*bufp)); /* Go through possible variables */ /* some of these (at least LEVELS and SAVE) should now set the * appropriate fqn_prefix[] rather than specialized variables */ if (match_varname(buf, "OPTIONS", 4)) { parseoptions(bufp, TRUE, TRUE); if (plname[0]) /* If a name was given */ plnamesuffix(); /* set the character class */ #ifdef NOCWD_ASSUMPTIONS } else if (match_varname(buf, "HACKDIR", 4)) { adjust_prefix(bufp, HACKPREFIX); } else if (match_varname(buf, "LEVELDIR", 4) || match_varname(buf, "LEVELS", 4)) { adjust_prefix(bufp, LEVELPREFIX); } else if (match_varname(buf, "SAVE", 4)) { adjust_prefix(bufp, SAVEPREFIX); } else if (match_varname(buf, "BONESDIR", 5)) { adjust_prefix(bufp, BONESPREFIX); } else if (match_varname(buf, "DATADIR", 4)) { adjust_prefix(bufp, DATAPREFIX); } else if (match_varname(buf, "SCOREDIR", 4)) { adjust_prefix(bufp, SCOREPREFIX); } else if (match_varname(buf, "LOCKDIR", 4)) { adjust_prefix(bufp, LOCKPREFIX); } else if (match_varname(buf, "CONFIGDIR", 4)) { adjust_prefix(bufp, CONFIGPREFIX); #else /*NOCWD_ASSUMPTIONS*/ # ifdef MICRO } else if (match_varname(buf, "HACKDIR", 4)) { (void) strncpy(hackdir, bufp, PATHLEN); # ifdef MFLOPPY } else if (match_varname(buf, "RAMDISK", 3)) { /* The following ifdef is NOT in the wrong * place. For now, we accept and silently * ignore RAMDISK */ # ifndef AMIGA (void) strncpy(tmp_ramdisk, bufp, PATHLEN); # endif # endif } else if (match_varname(buf, "LEVELS", 4)) { (void) strncpy(tmp_levels, bufp, PATHLEN); } else if (match_varname(buf, "SAVE", 4)) { # ifdef MFLOPPY extern int saveprompt; # endif char *ptr; if ((ptr = index(bufp, ';')) != 0) { *ptr = '\0'; # ifdef MFLOPPY if (*(ptr+1) == 'n' || *(ptr+1) == 'N') { saveprompt = FALSE; } # endif } # ifdef MFLOPPY else saveprompt = flags.asksavedisk; # endif (void) strncpy(SAVEP, bufp, PATHLEN); append_slash(SAVEP); # endif /* MICRO */ #endif /*NOCWD_ASSUMPTIONS*/ } else if (match_varname(buf, "NAME", 4)) { (void) strncpy(plname, bufp, PL_NSIZ-1); plnamesuffix(); } else if (match_varname(buf, "ROLE", 4) || match_varname(buf, "CHARACTER", 4)) { if ((len = str2role(bufp)) >= 0) flags.initrole = len; } else if (match_varname(buf, "DOGNAME", 3)) { (void) strncpy(dogname, bufp, PL_PSIZ-1); } else if (match_varname(buf, "CATNAME", 3)) { (void) strncpy(catname, bufp, PL_PSIZ-1); } else if (match_varname(buf, "GRAPHICS", 4)) { len = get_uchars(fp, buf, bufp, translate, MAXPCHARS, "GRAPHICS"); assign_graphics(translate, len, MAXPCHARS, 0); } else if (match_varname(buf, "DUNGEON", 4)) { len = get_uchars(fp, buf, bufp, translate, MAXDCHARS, "DUNGEON"); assign_graphics(translate, len, MAXDCHARS, 0); } else if (match_varname(buf, "TRAPS", 4)) { len = get_uchars(fp, buf, bufp, translate, MAXTCHARS, "TRAPS"); assign_graphics(translate, len, MAXTCHARS, MAXDCHARS); } else if (match_varname(buf, "EFFECTS", 4)) { len = get_uchars(fp, buf, bufp, translate, MAXECHARS, "EFFECTS"); assign_graphics(translate, len, MAXECHARS, MAXDCHARS+MAXTCHARS); } else if (match_varname(buf, "OBJECTS", 3)) { /* oc_syms[0] is the RANDOM object, unused */ (void) get_uchars(fp, buf, bufp, &(oc_syms[1]), MAXOCLASSES-1, "OBJECTS"); } else if (match_varname(buf, "MONSTERS", 3)) { /* monsyms[0] is unused */ (void) get_uchars(fp, buf, bufp, &(monsyms[1]), MAXMCLASSES-1, "MONSTERS"); } else if (match_varname(buf, "WARNINGS", 5)) { (void) get_uchars(fp, buf, bufp, translate, WARNCOUNT, "WARNINGS"); assign_warnings(translate); #ifdef AMIGA } else if (match_varname(buf, "FONT", 4)) { char *t; extern void amii_set_text_font( char *, int ); if( t = strchr( buf+5, ':' ) ) { *t = 0; amii_set_text_font( buf+5, atoi( t + 1 ) ); *t = ':'; } } else if (match_varname(buf, "PATH", 4)) { (void) strncpy(PATH, bufp, PATHLEN); #endif #ifdef AMIGA } else if (match_varname(buf, "DEPTH", 5)) { extern int amii_numcolors; int val = atoi( bufp ); amii_numcolors = 1L << min( DEPTH, val ); } else if (match_varname(buf, "DRIPENS", 7)) { int i, val; char *t; for (i = 0, t = strtok(bufp, ",/"); t != (char *)0; i < 20 && (t = strtok((char*)0, ",/")), ++i) { sscanf(t, "%d", &val ); flags.amii_dripens[i] = val; } } else if (match_varname(buf, "SCREENMODE", 10 )) { extern long amii_scrnmode; if( sscanf(bufp, "%x", &amii_scrnmode) != 1 ) amii_scrnmode = 0; } else if (match_varname(buf, "MSGPENS", 7)) { extern int amii_msgAPen, amii_msgBPen; char *t = strtok(bufp, ",/"); if( t ) { sscanf(t, "%d", &amii_msgAPen); if( t = strtok((char*)0, ",/") ) sscanf(t, "%d", &amii_msgBPen); } } else if (match_varname(buf, "TEXTPENS", 8)) { extern int amii_textAPen, amii_textBPen; char *t = strtok(bufp, ",/"); if( t ) { sscanf(t, "%d", &amii_textAPen); if( t = strtok((char*)0, ",/") ) sscanf(t, "%d", &amii_textBPen); } } else if (match_varname(buf, "MENUPENS", 8)) { extern int amii_menuAPen, amii_menuBPen; char *t = strtok(bufp, ",/"); if( t ) { sscanf(t, "%d", &amii_menuAPen); if( t = strtok((char*)0, ",/") ) sscanf(t, "%d", &amii_menuBPen); } } else if (match_varname(buf, "STATUSPENS", 10)) { extern int amii_statAPen, amii_statBPen; char *t = strtok(bufp, ",/"); if( t ) { sscanf(t, "%d", &amii_statAPen); if( t = strtok((char*)0, ",/") ) sscanf(t, "%d", &amii_statBPen); } } else if (match_varname(buf, "OTHERPENS", 9)) { extern int amii_otherAPen, amii_otherBPen; char *t = strtok(bufp, ",/"); if( t ) { sscanf(t, "%d", &amii_otherAPen); if( t = strtok((char*)0, ",/") ) sscanf(t, "%d", &amii_otherBPen); } } else if (match_varname(buf, "PENS", 4)) { extern unsigned short amii_init_map[ AMII_MAXCOLORS ]; int i; char *t; for (i = 0, t = strtok(bufp, ",/"); i < AMII_MAXCOLORS && t != (char *)0; t = strtok((char *)0, ",/"), ++i) { sscanf(t, "%hx", &amii_init_map[i]); } amii_setpens( amii_numcolors = i ); #endif #ifdef QT_GRAPHICS } else if (match_varname(buf, "QT_TILEWIDTH", 12)) { extern char *qt_tilewidth; if (qt_tilewidth == NULL) qt_tilewidth=(char *)strdup(bufp); } else if (match_varname(buf, "QT_TILEHEIGHT", 13)) { extern char *qt_tileheight; if (qt_tileheight == NULL) qt_tileheight=(char *)strdup(bufp); } else if (match_varname(buf, "QT_FONTSIZE", 11)) { extern char *qt_fontsize; if (qt_fontsize == NULL) qt_fontsize=(char *)strdup(bufp); #endif } else return 0; return 1; } void read_config_file(filename) const char *filename; { #define tmp_levels (char *)0 #define tmp_ramdisk (char *)0 #ifdef MICRO #undef tmp_levels char tmp_levels[PATHLEN]; # ifdef MFLOPPY # ifndef AMIGA #undef tmp_ramdisk char tmp_ramdisk[PATHLEN]; # endif # endif #endif char buf[4*BUFSZ]; FILE *fp; if (!(fp = fopen_config_file(filename))) return; #ifdef MICRO # ifdef MFLOPPY # ifndef AMIGA tmp_ramdisk[0] = 0; # endif # endif tmp_levels[0] = 0; #endif while (fgets(buf, 4*BUFSZ, fp)) { if (!parse_config_line(fp, buf, tmp_ramdisk, tmp_levels)) { raw_printf("Bad option line: \"%s\"", buf); wait_synch(); } } (void) fclose(fp); #if defined(MICRO) && !defined(NOCWD_ASSUMPTIONS) /* should be superseded by fqn_prefix[] */ # ifdef MFLOPPY Strcpy(permbones, tmp_levels); # ifndef AMIGA if (tmp_ramdisk[0]) { Strcpy(levels, tmp_ramdisk); if (strcmp(permbones, levels)) /* if not identical */ ramdisk = TRUE; } else # endif /* AMIGA */ Strcpy(levels, tmp_levels); Strcpy(bones, levels); # endif /* MFLOPPY */ #endif /* MICRO */ return; } /* ---------- END CONFIG FILE HANDLING ----------- */ /* ---------- BEGIN SCOREBOARD CREATION ----------- */ /* verify that we can write to the scoreboard file; if not, try to create one */ void check_recordfile(dir) const char *dir; { #if defined(applec) || defined(__MWERKS__) # pragma unused(dir) #endif const char *fq_record; int fd; #if defined(UNIX) || defined(VMS) fq_record = fqname(RECORD, SCOREPREFIX, 0); fd = open(fq_record, O_RDWR, 0); if (fd >= 0) { # ifdef VMS /* must be stream-lf to use UPDATE_RECORD_IN_PLACE */ if (!file_is_stmlf(fd)) { raw_printf( "Warning: scoreboard file %s is not in stream_lf format", fq_record); wait_synch(); } # endif (void) close(fd); /* RECORD is accessible */ } else if ((fd = open(fq_record, O_CREAT|O_RDWR, FCMASK)) >= 0) { (void) close(fd); /* RECORD newly created */ # if defined(VMS) && !defined(SECURE) /* Re-protect RECORD with world:read+write+execute+delete access. */ (void) chmod(fq_record, FCMASK | 007); # endif /* VMS && !SECURE */ } else { raw_printf("Warning: cannot write scoreboard file %s", fq_record); wait_synch(); } #endif /* !UNIX && !VMS */ #ifdef MICRO char tmp[PATHLEN]; # ifdef OS2_CODEVIEW /* explicit path on opening for OS/2 */ /* how does this work when there isn't an explicit path or fopenp * for later access to the file via fopen_datafile? ? */ (void) strncpy(tmp, dir, PATHLEN - 1); tmp[PATHLEN-1] = '\0'; if ((strlen(tmp) + 1 + strlen(RECORD)) < (PATHLEN - 1)) { append_slash(tmp); Strcat(tmp, RECORD); } fq_record = tmp; # else Strcpy(tmp, RECORD); fq_record = fqname(RECORD, SCOREPREFIX, 0); # endif if ((fd = open(fq_record, O_RDWR)) < 0) { /* try to create empty record */ # if defined(AZTEC_C) || defined(_DCC) /* Aztec doesn't use the third argument */ /* DICE doesn't like it */ if ((fd = open(fq_record, O_CREAT|O_RDWR)) < 0) { # else if ((fd = open(fq_record, O_CREAT|O_RDWR, S_IREAD|S_IWRITE)) < 0) { # endif raw_printf("Warning: cannot write record %s", tmp); wait_synch(); } else (void) close(fd); } else /* open succeeded */ (void) close(fd); #else /* MICRO */ # ifdef MAC /* Create the "record" file, if necessary */ fq_record = fqname(RECORD, SCOREPREFIX, 0); fd = macopen (fq_record, O_RDWR | O_CREAT, TEXT_TYPE); if (fd != -1) macclose (fd); # endif /* MAC */ #endif /* MICRO */ } /* ---------- END SCOREBOARD CREATION ----------- */ /*files.c*/