Mercurial > hg > early-roguelike
annotate rogue5/scedit.c @ 81:0e212d46b68f
rogue4: don't put savefile metadata into the savefile.
The save_file() function in save.c stored the savefile's device number,
inode number, creation time, and modification time in the file. The
restore() function read them back, and apparently used to compare them
to protect against cheaters.
Unfortunately, the types and sizes of these numbers differ from system
to system, which ruins the Roguelike Restoration Project's fine
portability work. So they have been removed from the savefile.
This BREAKS SAVEFILE COMPATIBILITY, but old files can be converted by
excising the chunk starting at offset 0x22 with length sizeof(ino_t) +
sizeof(dev_t) + 2 * sizeof(time_t). That's 0x14 on i686 and 0x20 on
x86_64, at least with current versions of Linux and glibc.
author | John "Elwin" Edwards |
---|---|
date | Mon, 05 Aug 2013 20:49:41 -0700 |
parents | f502bf60e6e4 |
children | 3d4252fa2ed3 |
rev | line source |
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33
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1 /* |
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2 * score editor |
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3 * |
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4 * @(#)score.c 4.6 (Berkeley) 02/05/99 |
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5 * |
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6 * Rogue: Exploring the Dungeons of Doom |
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7 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman |
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8 * All rights reserved. |
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9 * |
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10 * See the file LICENSE.TXT for full copyright and licensing information. |
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11 */ |
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12 |
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13 # include <curses.h> |
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14 # include <stdio.h> |
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15 # include <signal.h> |
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16 # include <ctype.h> |
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17 |
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18 #ifndef TRUE |
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19 # define TRUE 1 |
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20 #endif |
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21 # define FALSE 0 |
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22 # define RN (((seed = seed*11109+13849) >> 16) & 0xffff) |
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23 |
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24 # define MAXSTR 80 |
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25 |
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26 # include "score.h" |
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27 |
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28 SCORE top_ten[10]; |
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29 |
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30 char buf[BUFSIZ], |
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31 *reason[] = { |
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32 "killed", |
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33 "quit", |
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34 "A total winner", |
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35 "killed with amulet", |
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36 }; |
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37 |
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38 int seed; |
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39 FILE *inf; |
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40 |
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41 struct passwd *getpwnam(); |
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42 int do_comm(); |
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43 int pr_score(SCORE *, int); |
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44 |
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45 int |
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46 main(int ac, char *av[]) |
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47 { |
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48 char *scorefile; |
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49 FILE *outf; |
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50 |
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51 if (ac == 1) |
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52 scorefile = "rogue54.scr"; |
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53 else |
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54 scorefile = av[1]; |
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55 seed = md_getpid(); |
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56 |
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57 if ((inf = fopen(scorefile, "r+")) < 0) { |
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58 perror(scorefile); |
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59 exit(1); |
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60 } |
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61 s_encread((char *) top_ten, sizeof top_ten, inf); |
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62 |
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63 while (do_comm()) |
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64 continue; |
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65 |
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66 exit(0); |
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67 } |
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68 |
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69 /* |
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70 * do_comm: |
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71 * Get and execute a command |
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72 */ |
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73 int |
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74 do_comm(void) |
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75 { |
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76 char *sp; |
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77 SCORE *scp; |
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78 struct passwd *pp; |
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79 static FILE *outf = NULL; |
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80 static int written = TRUE; |
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81 |
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82 printf("\nCommand: "); |
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83 while (isspace(buf[0] = getchar()) || buf[0] == '\n') |
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84 continue; |
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85 (void) fget(s&buf[1], BUFSIZ, stdin); |
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86 buf[strlen(buf) - 1] = '\0'; |
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87 switch (buf[0]) { |
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88 case 'w': |
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89 if (strncmp(buf, "write", strlen(buf))) |
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90 goto def; |
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91 lseek(inf, 0L, 0); |
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92 if (outf == NULL && (outf = fdopen(inf, "w")) == NULL) { |
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93 perror("fdopen"); |
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94 exit(1); |
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95 } |
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96 fseek(outf, 0L, 0); |
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97 if (s_lock_sc()) |
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98 { |
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99 void (*fp)(int); |
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100 |
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101 fp = signal(SIGINT, SIG_IGN); |
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102 s_encwrite((char *) top_ten, sizeof top_ten, outf); |
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103 s_unlock_sc(); |
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104 signal(SIGINT, fp); |
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105 written = TRUE; |
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106 } |
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107 break; |