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annotate arogue5/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 7faf4568c295
children aac28331e71d
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1 /*
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2 * Rogue
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Rogue: Exploring the Dungeons of Doom"
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9 * Copyright (C) 1980, 1981 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 #include "curses.h"
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16 #include <stdlib.h>
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17 #include <string.h>
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18 #include <fcntl.h>
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19 #include <sys/types.h>
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20 #include <sys/stat.h>
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21 #include <limits.h>
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22 #include <signal.h>
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23 #include <time.h>
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24 #include "mach_dep.h"
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25 #include "network.h"
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26 #include "rogue.h"
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27
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28 #ifdef CHECKTIME
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29 static int num_checks; /* times we've gone over in checkout() */
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30 #endif
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31
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32 /*
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33 * fruits that you get at startup
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34 */
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35 static char *funfruit[] = {
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36 "candleberry", "caprifig", "dewberry", "elderberry",
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37 "gooseberry", "guanabana", "hagberry", "ilama",
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38 "imbu", "jaboticaba", "jujube", "litchi",
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39 "mombin", "pitanga", "prickly pear", "rambutan",
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40 "sapodilla", "soursop", "sweetsop", "whortleberry",
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41 "jellybean", "apple", "strawberry", "blueberry",
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42 "peach", "banana"
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43 };
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44 #define NFRUIT (sizeof(funfruit) / sizeof (char *))
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45
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46 int scorefd = -1;
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47 FILE *logfile = NULL;
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48 void open_records(void);
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49
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50 main(argc, argv, envp)
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51 char **argv;
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52 char **envp;
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53 {
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54 register char *env;
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55 int lowtime;
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56 time_t now;
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57 char *roguedir;
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58
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59 roguedir = md_getroguedir();
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60 md_init();
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61
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62 /*
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63 * get home and options from environment
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64 */
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65 strncpy(home,md_gethomedir(),LINELEN);
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66
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67 #ifdef SAVEDIR
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68 if (argc >= 3 && !strcmp(argv[1], "-n")) {
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69 use_savedir = TRUE;
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70 strncpy(whoami, argv[2], LINELEN);
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71 whoami[LINELEN - 1] = '\0';
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72 if (snprintf(file_name, 256, "%s/%d-%s.ar5sav", SAVEDIR,
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73 md_getuid(), whoami) >= 256)
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74 {
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75 /* The name is too long */
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76 use_savedir = FALSE;
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77 }
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78 }
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79 #endif
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80 /* Get default save file */
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81 if (!use_savedir) {
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82 strcpy(file_name, home);
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83 strcat(file_name, "arogue58.sav");
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84 }
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85
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86 #ifdef SCOREFILE
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87 strncpy(score_file, SCOREFILE, LINELEN);
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88 score_file[LINELEN - 1] = '\0';
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89 #else
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90 /* Get default score file */
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91 strcpy(score_file, roguedir);
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92
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93 if (*score_file)
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94 strcat(score_file,"/");
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95
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96 strcat(score_file, "arogue58.scr");
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97 #endif
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98
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99 if ((env = getenv("ROGUEOPTS")) != NULL)
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