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annotate arogue5/state.c @ 294:fe6b7a1a6dfc

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Improve the documentation build process. The choice between troff implementations is now made at configure time, rather than using shell logic in the Makefile to choose while building.
author John "Elwin" Edwards
date Sat, 30 Dec 2017 14:15:52 -0500
parents d3968e9cb98d
children e52a8a7ad4c5
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1 /*
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2 state.c - Portable Rogue Save State Code
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3
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4 Copyright (C) 1999, 2000, 2005 Nicholas J. Kisseberth
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5 All rights reserved.
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6
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7 Redistribution and use in source and binary forms, with or without
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8 modification, are permitted provided that the following conditions
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9 are met:
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10 1. Redistributions of source code must retain the above copyright
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11 notice, this list of conditions and the following disclaimer.
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12 2. Redistributions in binary form must reproduce the above copyright
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13 notice, this list of conditions and the following disclaimer in the
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14 documentation and/or other materials provided with the distribution.
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15 3. Neither the name(s) of the author(s) nor the names of other contributors
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16 may be used to endorse or promote products derived from this software
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17 without specific prior written permission.
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18
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19 THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTORS ``AS IS'' AND
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20 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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21 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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22 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTORS BE LIABLE
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23 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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24 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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25 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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26 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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27 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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28 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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29 SUCH DAMAGE.
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30 */
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31
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32 /************************************************************************/
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33 /* Save State Code */
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34 /************************************************************************/
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35
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36 #define RSID_STATS 0xABCD0001
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37 #define RSID_MSTATS 0xABCD0002
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38 #define RSID_THING 0xABCD0003
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39 #define RSID_OBJECT 0xABCD0004
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40 #define RSID_MAGICITEMS 0xABCD0005
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41 #define RSID_KNOWS 0xABCD0006
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42 #define RSID_GUESSES 0xABCD0007
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43 #define RSID_OBJECTLIST 0xABCD0008
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44 #define RSID_BAGOBJECT 0xABCD0009
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45 #define RSID_MONSTERLIST 0xABCD000A
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46 #define RSID_MONSTERSTATS 0xABCD000B
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47 #define RSID_MONSTERS 0xABCD000C
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48 #define RSID_TRAP 0xABCD000D
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49 #define RSID_WINDOW 0xABCD000E
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50 #define RSID_DAEMONS 0xABCD000F
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51 #define RSID_STICKS 0xABCD0010
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52 #define RSID_IARMOR 0xABCD0011
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53 #define RSID_SPELLS 0xABCD0012
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54 #define RSID_ILIST 0xABCD0013
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55 #define RSID_HLIST 0xABCD0014
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56 #define RSID_DEATHTYPE 0xABCD0015
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57 #define RSID_CTYPES 0XABCD0016
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58 #define RSID_COORDLIST 0XABCD0017
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59 #define RSID_ROOMS 0XABCD0018
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60
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61 #include <curses.h>
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62 #include <stdio.h>
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63 #include <stdlib.h>
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64 #include <string.h>
63
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65 #include "rogue.h"
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66
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67 int rs_read_int(FILE *inf, int *i);
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68 int rs_write_int(FILE *savef, int c);
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69 int list_size(struct linked_list *l);
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70 int rs_write_object_list(FILE *savef, struct linked_list *l);
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71 int rs_read_object_list(FILE *inf, struct linked_list **list);
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72
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73 #define READSTAT (format_error || read_error )
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74 #define WRITESTAT (write_error)
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75
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76 static int read_error = FALSE;
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77 static int write_error = FALSE;
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78 static int format_error = FALSE;
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79 static int endian = 0x01020304;
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80 #define big_endian ( *((char *)&endian) == 0x01 )
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81
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82 int
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83 rs_write(FILE *savef, void *ptr, size_t size)
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84 {
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85 if (write_error)
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86 return(WRITESTAT);
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87
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88 if (encwrite(ptr, size, savef) != size)
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89 write_error = 1;
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90
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91 return(WRITESTAT);
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92 }
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93
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94 int
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95 rs_read(FILE *inf, void *ptr, size_t size)
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96 {
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97 if (read_error || format_error)
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98 return(READSTAT);
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99
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100 if (encread(ptr, size, inf) != size)
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