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Fix potential segfaults at restore related to ctime(). In some games, restore() passes the result of ctime() to mvprintw() or some other variadic message-formatting function. If ctime() has not been declared properly, its return type is inferred to be int instead of char *. This does not cause a warning because the compiler does not know the correct type of variadic arguments. On platforms where ints and pointers are not the same size, this can, probably depending on alignment, result in a segfault that is not easy to trace. Including time.h fixes the problem. Some games manually declared ctime() and avoided the bug. These declarations have also been replaced with the include.
author John "Elwin" Edwards
date Fri, 15 Sep 2017 20:51:10 -0400
parents d3968e9cb98d
children 057c5114e244
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1 EXTTHG player;
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2 EXTWEP weaps[];
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3 EXTARM armors[];
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4 EXTMON monsters[], *mtlev[];
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5 EXTTRAP traps[];
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6 EXTROOM *oldrp, rooms[];
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7 EXTCORD delta, stairs, oldpos, rndspot;
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8 EXTLKL *mlist, *lvl_obj;
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9 EXTOBJ *cur_armor, *cur_weapon, *cur_ring[];
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10 EXTMAG r_magic[], s_magic[], ws_magic[], p_magic[];
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11 EXTMAG things[], a_magic[], w_magic[];
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12 EXTINT max_hp, quiet, food_left, hungry_state, level, max_level;
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13 EXTINT foodlev, total, count, demoncnt, fung_hit, ntraps;
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14 EXTINT lastscore, purse, mpos, seed, dnum, no_food, packvol, playuid;
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15 EXTINT curprice, trader, group, levcount, levtype, ringfood, playgid;
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16 EXTINT chkstairs(), notfight();
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17 EXTINT prntfile();
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18 EXTBOOL running, nochange, after, inwhgt, isfight, firstmove, nlmove;
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19 EXTBOOL wizard, waswizard, in_shell, amulet, door_stop, playing, use_savedir;
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20 EXTBOOL notify, ws_know[], p_know[], s_know[], r_know[], inpool;
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21 EXTCHAR home[], file_name[], whoami[], fruit[], curpurch[], scorefile[];
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22 EXTCHAR *r_stones[], *p_colors[], *s_names[], *ws_type[], *ws_made[];
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23 EXTCHAR *ws_guess[], *s_guess[], *r_guess[], *p_guess[];/*, *unctrl();*/
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24 EXTCHAR morestr[], prbuf[], huh[];
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25 EXTCHAR *release, take, runch;
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26 EXTCHAR retstr[], wizstr[], spacemsg[], illegal[], callit[], starlist[];
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27 EXTSTAT max_stats, *him;
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28 extern struct magic_info thnginfo[];
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29 extern struct real re_stats;
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30 extern long e_levels[];
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31 extern struct rod ws_stuff[];
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32 extern struct sgttyb _tty;
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34 extern struct coord nh;
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35 extern struct delayed_action d_list[MAXDAEMONS];
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36 extern int between;
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38 extern char *rainbow[NCOLORS];
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39 extern char *sylls[NSYLS];
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40 extern char *stones[NSTONES];
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41 extern char *wood[NWOOD];
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42 extern char *metal[NMETAL];
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44 void _attach(struct linked_list **list, struct linked_list *item);
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45 void _detach(struct linked_list **list, struct linked_list *item);
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46 void _free_list(struct linked_list **ptr);
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47 void activity(void);
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48 int add_dam(struct stats *who);
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49 void add_haste(bool potion);
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50 void add_mon(struct room *rm, bool treas);
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51 bool add_pack(struct linked_list *item, bool silent);
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52 void add_pass(void);
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53 void addmsg(char *fmt, ...);
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54 void aggravate(void);
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55 int attack(struct thing *mp);
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56 bool author(void);
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57 void auto_save(int a);
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58 int be_trapped(struct coord *tc, struct thing *th);
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59 void buy_it(void);
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60 void byebye(int how);
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61 bool cansee(int y, int x);
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62 char *charge_str(struct object *obj);
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63 void check_level(void);
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64 void chg_abil(int what, int amt, int how);
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65 void chg_hpt(int howmany, bool alsomax, char what);
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66 void command(void);
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67 bool cordok(int y, int x);
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68 void create_obj(bool fscr);
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69 void cur_null(struct object *op);
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70 void dbotline(WINDOW *scr, char *message);
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71 bool dead_end(char ch);
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72 void death(char monst);
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73 void del_pack(struct linked_list *what);
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74 bool diag_ok(struct coord *sp, struct coord *ep);
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75 void dip_it(void);
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76 void discard(struct linked_list *item);
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77 void displevl(void);
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78 void dispmax(void);
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79 void dispmons(void);
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80 void do_daemons(int flag);
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81 void do_fuses(void);
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82 void do_maze(void);
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83 void do_motion(struct object *obj, int ydelta, int xdelta);
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84 void do_move(int dy, int dx);
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85 void do_passages(void);
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86 void do_post(void);
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87 void do_rooms(void);
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88 void do_run(char ch);
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