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annotate rogue4/io.c @ 140:856017d63519

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xrogue: don't segfault when backstabbing while empty-handed. The code for backstabbing checked the weapon's properties without making sure it was not NULL.
author John "Elwin" Edwards
date Tue, 05 May 2015 12:12:20 -0400
parents 9535a08ddc39
children 1b73a8641b37
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12
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1 /*
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2 * Various input/output functions
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3 *
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4 * @(#)io.c 4.13 (Berkeley) 2/25/82
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5 *
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6 * Rogue: Exploring the Dungeons of Doom
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7 * Copyright (C) 1980, 1981, 1982 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 <ctype.h>
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15 #include <string.h>
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16 #include "rogue.h"
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17 #include <stdarg.h>
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18
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19 /*
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20 * msg:
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21 * Display a message at the top of the screen.
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22 */
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23 static char msgbuf[BUFSIZ];
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24 static int newpos = 0;
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25
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26 msg(char *fmt, ...)
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27 {
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28 va_list ap;
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29 /*
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30 * if the string is "", just clear the line
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31 */
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32 if (*fmt == '\0')
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33 {
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34 move(0, 0);
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35 clrtoeol();
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36 mpos = 0;
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37 return;
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38 }
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39 /*
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40 * otherwise add to the message and flush it out
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41 */
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42 va_start(ap,fmt);
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43 doadd(fmt, ap);
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44 va_end(ap);
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45 endmsg();
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46 }
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47
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48 /*
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49 * addmsg:
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50 * Add things to the current message
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51 */
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52
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53 addmsg(char *fmt, ...)
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54 {
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55 va_list ap;
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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
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62 /*
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63 * endmsg:
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64 * Display a new msg (giving him a chance to see the previous one
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65 * if it is up there with the --More--)
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66 */
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67
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68 endmsg()
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69 {
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70 if (save_msg)
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71 {
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72 strncpy(huh, msgbuf, 80);
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73 huh[79] = 0;
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74 }
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75
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76 if (mpos)
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77 {
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78 look(FALSE);
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79 move(0, mpos);
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80 addstr("--More--");
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81 refresh();
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82 wait_for(' ');
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83 }
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84 /*
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85 * All messages should start with uppercase, except ones that
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86 * start with a pack addressing character
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87 */
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88 if (islower(msgbuf[0]) && msgbuf[1] != ')')
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89 msgbuf[0] = toupper(msgbuf[0]);
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90 mvaddstr(0, 0, msgbuf);
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91 clrtoeol();
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92 mpos = newpos;
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93 newpos = 0;
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94 refresh();
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95 }
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96
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97 /*
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98 * doadd:
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99 * Perform an add onto the message buffer
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100 */
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101
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102 doadd(char *fmt, va_list ap)
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103 {
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104 vsprintf(&msgbuf[newpos], fmt, ap);
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105 newpos = strlen(msgbuf);
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106 }
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107
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108 /*
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