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annotate srogue/main.c @ 144:708bb2dea17c

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arogue7, xrogue: prevent potential NULL dereferencing. It is possible for getpwuid() to fail and return NULL. Various md_get* functions now check for this.
author John "Elwin" Edwards
date Mon, 18 May 2015 10:53:22 -0400
parents e6c8652473fe
children 78fa1d0e5d25
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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 <fcntl.h>
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22 #include <stdio.h>
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23 #include <limits.h>
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24 #include <sys/stat.h>
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25 #include "rogue.h"
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26
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27 #ifdef ATT
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28 #include <time.h>
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29 #endif
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30
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31 #ifdef BSD
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32 #include <sys/time.h>
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33 #endif
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34
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35 #include "rogue.ext"
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36
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37 main(argc, argv, envp)
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38 char **argv;
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39 char **envp;
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40 {
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41 register char *env;
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42 register struct linked_list *item;
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43 register struct object *obj;
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44 char alldone, wpt;
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45 char *getpass(), *xcrypt(), *strrchr();
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46 int lowtime;
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47 time_t now;
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48 char *roguehome();
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49 char *homedir = roguehome();
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50
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51 #ifdef __DJGPP__
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52 _fmode = O_BINARY;
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53 #endif
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54
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55 if (homedir == NULL)
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56 homedir = "";
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57
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58 playuid = md_getuid();
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59 playgid = md_getgid();
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60
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61 /* check for print-score option */
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62 #ifdef SCOREFILE
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63 strncpy(scorefile, SCOREFILE, LINLEN);
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64 scorefile[LINLEN - 1] = '\0';
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65 #else
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66
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67 strcpy(scorefile, homedir);
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68
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69 if (*scorefile)
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70 strcat(scorefile,"/");
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71 strcat(scorefile, "srogue.scr");
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72 #endif
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73
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74 if(argc >= 2 && strcmp(argv[1], "-s") == 0)
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75 {
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76 showtop(0);
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77 exit(0);
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78 }
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79
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80 #ifdef WIZARD
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81 if (argc >= 2 && author() && strcmp(argv[1],"-a") == 0)
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82 {
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83 wizard = TRUE;
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84 argv++;
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85 argc--;
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86 }
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87
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88 /* Check to see if he is a wizard */
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89
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90 if (argc >= 2 && strcmp(argv[1],"-w") == 0)
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91 {
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92 if (strcmp(PASSWD, xcrypt(getpass(wizstr),"mT")) == 0)
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93 {
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94 wizard = TRUE;
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95 argv++;
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96 argc--;
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97 }
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98 }
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99 #endif
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100 time(&now);
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101 lowtime = (int) now;
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102
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103 #ifdef SAVEDIR
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104 if (argc >= 3 && !strcmp(argv[1], "-n")) {
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