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annotate rogue4/main.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 17005af49963
children
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1 /*
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2 * # #
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3 * # # # # # ## # # #
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4 * #
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5 *
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6 * @(#)main.c 4.26 (Berkeley) 2/4/82
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7 *
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8 * Rogue: Exploring the Dungeons of Doom
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9 * Copyright (C) 1980, 1981, 1982 Michael Toy, Ken Arnold and Glenn Wichman
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 *
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14 */
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15
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16 #include <stdlib.h>
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17 #include <curses.h>
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18 #include <signal.h>
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19 #include <limits.h>
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20 #include <string.h>
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21 #include <time.h>
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22 #include "rogue.h"
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23
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24 /*
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25 * main:
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26 * The main program, of course
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27 */
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28 int
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29 main(int argc, char *argv[], char *envp[])
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30 {
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31 register char *env;
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32
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33 md_init();
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34
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35 #ifndef DUMP
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36 #ifdef SIGQUIT
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37 signal(SIGQUIT, exit);
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38 #endif
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39 signal(SIGILL, exit);
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40 #ifdef SIGTRAP
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41 signal(SIGTRAP, exit);
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42 #endif
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43 #ifdef SIGIOT
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44 signal(SIGIOT, exit);
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45 #endif
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46 #ifdef SIGEMT
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47 signal(SIGEMT, exit);
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48 #endif
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49 signal(SIGFPE, exit);
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50 #ifdef SIGBUS
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51 signal(SIGBUS, exit);
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52 #endif
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53 signal(SIGSEGV, exit);
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54 #ifdef SIGSYS
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55 signal(SIGSYS, exit);
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56 #endif
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57 #endif
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58
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59 #ifdef WIZARD
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60 /*
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61 * Check to see if he is a wizard
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62 */
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63 if (argc >= 2 && argv[1][0] == '\0')
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64 if (strcmp(PASSWD, xcrypt(md_getpass("Wizard's password: "), "mT")) == 0)
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65 {
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66 wizard = TRUE;
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67 player.t_flags |= SEEMONST;
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68 argv++;
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69 argc--;
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70 }
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71 #endif
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72
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73 #ifdef SAVEDIR
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74 if (argc >= 3 && !strcmp(argv[1], "-n"))
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75 {
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76 strncpy(whoami, argv[2], MAXSTR - 1);
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77 whoami[MAXSTR - 1] = '\0'; /* insurance */
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78 use_savedir = TRUE;
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79 /* look for savefile at SAVEDIR/UID-playername.r4sav */
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80 if (snprintf(file_name, 256, "%s/%d-%s.r4sav", SAVEDIR,
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81 md_getuid(), whoami) >= 256)
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82 {
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83 /* Name is too long- this shouldn't happen */
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84 strcpy(file_name, "rogue4.save");
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85 use_savedir = FALSE;
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86 }
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87 }
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88 #endif
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89
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90 /*
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91 * get home and options from environment
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92 */
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93 strncpy(home, md_gethomedir(), PATH_MAX);
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94 if (!use_savedir)
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95 {
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96 strcpy(file_name, home);
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97 strcat(file_name, "/rogue4.save");
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98 }
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99
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100 if ((env = getenv("ROGUEOPTS")) != NULL)
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101 parse_opts(env);
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102 if (!use_savedir && (env == NULL || whoami[0] == '\0'))