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annotate rogue5/extern.h @ 176:db1c9a21a7c3

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srogue: prevent overflowing the score file name. If SCOREFILE is not defined, roguehome() is called to find a directory for the score file. It copies up to PATH_MAX-20 bytes from an environment variable to a static buffer. Later these are strcpy()'d to scorefile, which is of size LINLEN. Unfortunately LINLEN is 80 and PATH_MAX is at least 256. On Linux, it happens to be 4096. I haven't yet managed to crash or exploit it, but there are surely no beneficial consequences, so roguehome() has been modified to check the length, and the string it returns is also checked in main().
author John "Elwin" Edwards
date Sun, 02 Aug 2015 12:14:47 -0400
parents 655c317b6237
children 3d4252fa2ed3
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33
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1 /*
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2 * Defines for things used in mach_dep.c
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3 *
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4 * @(#)extern.h 4.35 (Berkeley) 02/05/99
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5 *
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6 * Rogue: Exploring the Dungeons of Doom
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7 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman
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8 * All rights reserved.
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9 *
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10 * See the file LICENSE.TXT for full copyright and licensing information.
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11 */
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12
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13
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14 #ifdef HAVE_CONFIG_H
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15 #ifdef PDCURSES
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16 #undef HAVE_UNISTD_H
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17 #undef HAVE_LIMITS_H
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18 #undef HAVE_MEMORY_H
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19 #undef HAVE_STRING_H
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20 #endif
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21 #include "config.h"
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22 #elif defined(__DJGPP__)
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23 #define HAVE_SYS_TYPES_H 1
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24 #define HAVE_PROCESS_H 1
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25 #define HAVE_PWD_H 1
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26 #define HAVE_TERMIOS_H 1
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27 #define HAVE_SETGID 1
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28 #define HAVE_GETGID 1
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29 #define HAVE_SETUID 1
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30 #define HAVE_GETUID 1
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31 #define HAVE_GETPASS 1
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32 #define HAVE_SPAWNL 1
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33 #define HAVE_ALARM 1
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34 #define HAVE_ERASECHAR 1
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35 #define HAVE_KILLCHAR 1
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36 #elif defined(_WIN32)
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37 #define HAVE_CURSES_H
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38 #define HAVE_TERM_H
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39 #define HAVE__SPAWNL
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40 #define HAVE_SYS_TYPES_H
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41 #define HAVE_PROCESS_H
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42 #define HAVE_ERASECHAR 1
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43 #define HAVE_KILLCHAR 1
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44 #ifndef uid_t
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45 typedef unsigned int uid_t;
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46 #endif
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47 #ifndef pid_t
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48 typedef unsigned int pid_t;
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49 #endif
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50 #elif defined(__CYGWIN__)
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51 #define HAVE_SYS_TYPES_H 1
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52 #define HAVE_PWD_H 1
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53 #define HAVE_PWD_H 1
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54 #define HAVE_SYS_UTSNAME_H 1
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55 #define HAVE_ARPA_INET_H 1
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56 #define HAVE_UNISTD_H 1
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57 #define HAVE_TERMIOS_H 1
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58 #define HAVE_NCURSES_TERM_H 1
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59 #define HAVE_ESCDELAY
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60 #define HAVE_SETGID 1
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61 #define HAVE_GETGID 1
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62 #define HAVE_SETUID 1
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63 #define HAVE_GETUID 1
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64 #define HAVE_GETPASS 1
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65 #define HAVE_GETPWUID 1
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66 #define HAVE_WORKING_FORK 1
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67 #define HAVE_ALARM 1
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68 #define HAVE_SPAWNL 1
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69 #define HAVE__SPAWNL 1
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70 #define HAVE_ERASECHAR 1
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71 #define HAVE_KILLCHAR 1
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72 #else /* POSIX */
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73 #define HAVE_SYS_TYPES_H 1
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74 #define HAVE_PWD_H 1
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75 #define HAVE_PWD_H 1
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76 #define HAVE_SYS_UTSNAME_H 1
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77 #define HAVE_ARPA_INET_H 1
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78 #define HAVE_UNISTD_H 1
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79 #define HAVE_TERMIOS_H 1
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80 #define HAVE_TERM_H 1
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81 #define HAVE_SETGID 1
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82 #define HAVE_GETGID 1
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83 #define HAVE_SETUID 1
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84 #define HAVE_GETUID 1
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85 #define HAVE_SETREUID 1
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86 #define HAVE_SETREGID 1
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87 #define HAVE_GETPASS 1
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88 #define HAVE_GETPWUID 1
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89 #define HAVE_WORKING_FORK 1
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90 #define HAVE_ERASECHAR 1
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91 #define HAVE_KILLCHAR 1
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92 #ifndef _AIX
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93 #define HAVE_GETLOADAVG 1
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94 #endif
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95 #define HAVE_ALARM 1
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96 #endif
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97
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98 #ifdef __DJGPP__
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99 #undef HAVE_GETPWUID /* DJGPP's limited version doesn't even work as documented */
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100 #endif
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101
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102 /*
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103 * Don't change the constants, since they are used for sizes in many
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104 * places in the program.
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105 */
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106
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107 #include <stdlib.h>