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annotate urogue/io.c @ 258:2908dc47f9e2

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UltraRogue: fix crash when restoring. The r_flags field in struct room was being written as an int and read as a short. This caused the restore functions to receive the wrong data, usually an impossible string length, and abort. This breaks save compatibility, though the save files had problems anyway: the r_fires field should have been used, instead of reading and writing r_flags twice.
author John "Elwin" Edwards
date Wed, 08 Feb 2017 19:50:36 -0500
parents c495a4f288c6
children 0250220d8cdd
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1 /*
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2 io.c - Various input/output functions
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3
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4 UltraRogue: The Ultimate Adventure in the Dungeons of Doom
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5 Copyright (C) 1985, 1986, 1992, 1993, 1995 Herb Chong
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6 All rights reserved.
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7
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8 Based on "Advanced Rogue"
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9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka
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10 All rights reserved.
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11
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12 Based on "Rogue: Exploring the Dungeons of Doom"
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13 Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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14 All rights reserved.
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15
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16 See the file LICENSE.TXT for full copyright and licensing information.
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17 */
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18
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19 #include <string.h>
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20 #include <ctype.h>
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21 #include <stdarg.h>
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22 #include "rogue.h"
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23
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24 char prbuf[2 * LINELEN]; /* Buffer for sprintfs */
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25 static char mbuf[2*LINELEN]; /* Current message buffer */
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26 static int newpos = 0; /* index in mbuf to end of msg */
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27
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28 int mpos = 0; /* 0 = Overwrite existing message */
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29 /* >0 = print --More-- at this pos */
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30 /* and wait for key */
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31
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32 int line_cnt = 0;
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33 int newpage = FALSE;
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34
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35 /*
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36 msg()
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37 Display a message at the top of the screen.
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38 */
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39
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40 void
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41 msg(const char *fmt, ...)
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42 {
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43 va_list ap;
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44
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45 /* if the string is "", just clear the line */
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46
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47 if (*fmt == '\0')
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48 {
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49 wmove(cw, 0, 0);
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50 wclrtoeol(cw);
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51 mpos = 0;
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52 return;
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53 }
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54
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55 /* otherwise add to the message and flush it out */
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56
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57 va_start(ap, fmt);
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58 doadd(fmt, ap);
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59 va_end(ap);
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60
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61 endmsg();
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62 }
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63
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64 void
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65 vmsg(const char *fmt, va_list ap)
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66 {
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67 /* if the string is "", just clear the line */
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68
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69 if (*fmt == '\0')
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70 {
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71 wmove(cw, 0, 0);
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72 wclrtoeol(cw);
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73 mpos = 0;
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74 return;
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75 }
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76
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77 /* otherwise add to the message and flush it out */
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78
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79 doadd(fmt, ap);
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80 endmsg();
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81 }
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82
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83
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84 /*
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85 addmsg()
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86 add things to the current message
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87 */
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88
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89 void
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90 addmsg(const char *fmt, ...)
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91 {
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92 va_list ap;
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93
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94 va_start(ap, fmt);
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95 doadd(fmt,ap);