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annotate srogue/main.c @ 110:5f51f7d9805f

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arogue5: fix some save/restore-related crashes. The save/restore code took the pointer intended as an argument for the doctor() daemon and wrote it to the savefile as an int. I don't know why it took so long to fail horribly. The problem has been avoided by replacing the value with &player when restoring. That seems to be the only argument ever actually used. The code also writes only four bytes for an unsigned long; if sizeof(long) == 8, it casts to unsigned int first. It failed to do the cast when reading back, with the result that four bytes were read and the other half of the number was effectively uninitialized. It apparently works now, but the save/restore code ought still to be regarded as decidedly unfortunate.
author John "Elwin" Edwards
date Mon, 06 Jan 2014 15:57:17 -0500
parents f2951c4e28d9
children ee250e3646fd
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1 /*
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2 * Rogue
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3 * Exploring the dungeons of doom
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4 *
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5 * @(#)main.c 9.0 (rdk) 7/17/84
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6 *
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7 * Super-Rogue
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8 * Copyright (C) 1984 Robert D. Kindelberger
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9 * All rights reserved.
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10 *
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11 * Based on "Rogue: Exploring the Dungeons of Doom"
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12 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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13 * All rights reserved.
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14 *
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15 * See the file LICENSE.TXT for full copyright and licensing information.
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16 */
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17
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18 #include <stdlib.h>
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19 #include <string.h>
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20 #include <time.h>
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21 #include <termios.h>
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22 #include <fcntl.h>
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23 #include <stdio.h>
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24 #include <signal.h>
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25 #include <pwd.h>
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26 #include <limits.h>
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27 #include <sys/stat.h>
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28 #include "rogue.h"
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29
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30 #ifdef ATT
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31 #include <time.h>
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32 #endif
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33
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34 #ifdef BSD
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35 #define srand48(seed) srandom(seed)
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36 #define lrand48() random()
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37 #include <sys/time.h>
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38 #endif
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39
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40 #include "rogue.ext"
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41
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42 struct termios terminal;
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43
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44 main(argc, argv, envp)
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45 char **argv;
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46 char **envp;
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47 {
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48 register char *env;
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49 register struct linked_list *item;
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50 register struct object *obj;
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51 struct passwd *pw;
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52 struct passwd *getpwuid();
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53 char alldone, wpt;
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54 char *getpass(), *xcrypt(), *strrchr();
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55 int lowtime;
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56 time_t now;
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57 char *roguehome();
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58 char *homedir = roguehome();
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59
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60 #ifdef __DJGPP__
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61 _fmode = O_BINARY;
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62 #endif
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63
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64 if (homedir == NULL)
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65 homedir = "";
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66
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67 playuid = getuid();
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68
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69 if (setuid(playuid) < 0) {
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70 printf("Cannot change to effective uid: %d\n", playuid);
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71 exit(1);
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72 }
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73 playgid = getgid();
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74
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75 /* check for print-score option */
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76 #ifdef SCOREFILE
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77 strncpy(scorefile, SCOREFILE, LINLEN);
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78 scorefile[LINLEN - 1] = '\0';
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79 #else
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80
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81 strcpy(scorefile, homedir);
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82
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83 if (*scorefile)
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84 strcat(scorefile,"/");
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85 strcat(scorefile, "srogue.scr");
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86 #endif
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87
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88 if(argc >= 2 && strcmp(argv[1], "-s") == 0)
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89 {
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90 showtop(0);
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91 exit(0);
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92 }
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93
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94 #ifdef WIZARD
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95 if (argc >= 2 && author() && strcmp(argv[1],"-a") == 0)
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96 {
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97 wizard = TRUE;
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98 argv++;
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99 argc--;
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100 }
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101
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102 /* Check to see if he is a wizard */
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103
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104 if (argc >= 2 && strcmp(argv[1],"-w") == 0)
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105 {