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annotate rogue4/io.c @ 310:827441d05b3e

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Advanced Rogue family: fix some potential buffer overflows. Some code for determining the score file location assumed that PATH_MAX would be less than 1024, which cannot be guaranteed. Advanced Rogue 5 and 7, and XRogue, have had the buffers for the file name enlarged. UltraRogue never called the functions, so the code has been deleted instead.
author John "Elwin" Edwards
date Mon, 03 May 2021 19:05:37 -0400
parents 1b73a8641b37
children
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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 void doadd(char *fmt, va_list ap);
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20
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21 /*
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22 * msg:
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23 * Display a message at the top of the screen.
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24 */
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25 static char msgbuf[BUFSIZ];
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26 static int newpos = 0;
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27
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28 void
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29 msg(char *fmt, ...)
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30 {
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31 va_list ap;
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32 /*
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33 * if the string is "", just clear the line
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34 */
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35 if (*fmt == '\0')
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36 {
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37 move(0, 0);
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38 clrtoeol();
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39 mpos = 0;
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40 return;
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41 }
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42 /*
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43 * otherwise add to the message and flush it out
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44 */
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45 va_start(ap,fmt);
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46 doadd(fmt, ap);
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47 va_end(ap);
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48 endmsg();
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49 }
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50
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51 /*
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52 * addmsg:
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53 * Add things to the current message
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54 */
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55
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56 void
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57 addmsg(char *fmt, ...)
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58 {
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59 va_list ap;
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60
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61 va_start(ap, fmt);
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62 doadd(fmt, ap);
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63 va_end(ap);
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64 }
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65
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66 /*
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67 * endmsg:
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68 * Display a new msg (giving him a chance to see the previous one
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69 * if it is up there with the --More--)
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70 */
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71
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72 void
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73 endmsg(void)
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74 {
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75 if (save_msg)
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76 {
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77 strncpy(huh, msgbuf, 80);
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78 huh[79] = 0;
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79 }
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80
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81 if (mpos)
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82 {
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83 look(FALSE);
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84 move(0, mpos);
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85 addstr("--More--");
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86 refresh();
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87 wait_for(' ');
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88 }
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89 /*
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90 * All messages should start with uppercase, except ones that
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91 * start with a pack addressing character
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92 */
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93 if (islower(msgbuf[0]) && msgbuf[1] != ')')
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94 msgbuf[0] = toupper(msgbuf[0]);
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95 mvaddstr(0, 0, msgbuf);
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96 clrtoeol();
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97 mpos = newpos;
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98 newpos = 0;
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99 refresh();
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100 }
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101
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102 /*
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103 * doadd:
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104 * Perform an add onto the message buffer
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105 */
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106