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annotate rogue5/io.c @ 81:0e212d46b68f

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rogue4: don't put savefile metadata into the savefile. The save_file() function in save.c stored the savefile's device number, inode number, creation time, and modification time in the file. The restore() function read them back, and apparently used to compare them to protect against cheaters. Unfortunately, the types and sizes of these numbers differ from system to system, which ruins the Roguelike Restoration Project's fine portability work. So they have been removed from the savefile. This BREAKS SAVEFILE COMPATIBILITY, but old files can be converted by excising the chunk starting at offset 0x22 with length sizeof(ino_t) + sizeof(dev_t) + 2 * sizeof(time_t). That's 0x14 on i686 and 0x20 on x86_64, at least with current versions of Linux and glibc.
author John "Elwin" Edwards
date Mon, 05 Aug 2013 20:49:41 -0700
parents f502bf60e6e4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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33
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1 /*
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2 * Various input/output functions
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3 *
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4 * @(#)io.c 4.32 (Berkeley) 02/05/99
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5 */
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6
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7 #include <stdarg.h>
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8 #include <curses.h>
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9 #include <ctype.h>
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10 #include <string.h>
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11 #include "rogue.h"
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12
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13 /*
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14 * msg:
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15 * Display a message at the top of the screen.
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16 */
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17 #define MAXMSG (NUMCOLS - sizeof "--More--")
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18
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19 static char msgbuf[2*MAXMSG+1];
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20 static int newpos = 0;
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21
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22 /* VARARGS1 */
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23 int
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24 msg(const char *fmt, ...)
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25 {
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26 va_list args;
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27
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28 /*
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29 * if the string is "", just clear the line
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30 */
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31 if (*fmt == '\0')
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32 {
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33 move(0, 0);
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34 clrtoeol();
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35 mpos = 0;
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36 return ~ESCAPE;
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37 }
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38 /*
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39 * otherwise add to the message and flush it out
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40 */
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41 va_start(args, fmt);
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42 doadd(fmt, args);
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43 va_end(args);
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44 return endmsg();
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45 }
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46
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47 /*
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48 * addmsg:
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49 * Add things to the current message
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50 */
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51 /* VARARGS1 */
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52 void
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53 addmsg(const char *fmt, ...)
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54 {
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55 va_list args;
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56
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57 va_start(args, fmt);
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58 doadd(fmt, args);
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59 va_end(args);
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60 }
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61
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62 /*
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63 * endmsg:
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64 * Display a new msg (giving him a chance to see the previous one
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65 * if it is up there with the --More--)
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66 */
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67 int
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68 endmsg(void)
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69 {
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70 int ch;
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71
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72 if (save_msg)
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73 strcpy(huh, msgbuf);
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74 if (mpos)
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75 {
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76 look(FALSE);
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77 mvaddstr(0, mpos, "--More--");
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78 refresh();
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79 if (!msg_esc)
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80 wait_for(stdscr, ' ');
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81 else
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82 {
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83 while ((ch = readchar()) != ' ')
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84 if (ch == ESCAPE)
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85 {
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86 msgbuf[0] = '\0';
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87 mpos = 0;
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88 newpos = 0;
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89 msgbuf[0] = '\0';
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90 return ESCAPE;
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91 }
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92 }
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93 }
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94 /*
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95 * All messages should start with uppercase, except ones that
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96 * start with a pack addressing character
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97 */
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98 if (islower((int)msgbuf[0]) && !lower_msg && msgbuf[1] != ')')
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99 msgbuf[0] = (char) toupper(msgbuf[0]);
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100 mvaddstr(0, 0, msgbuf);
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101 clrtoeol();
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102 mpos = newpos;
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103 newpos = 0;
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104 msgbuf[0] = '\0';
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105 refresh();
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106 return ~ESCAPE;
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107 }
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108
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109 /*
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