annotate srogue/command.c @ 162:600873555ec0

Don't swap signal handlers in md_shellescape(). md_shellescape() sets SIGINT and SIGQUIT to be ignored, storing the previous handlers, and restores them after the shell exits. But it mixed up the two handlers. Since the signals were usually handled by the same function, this fix doesn't have much effect, but anything that makes signal code less confusing is a good thing.
author John "Elwin" Edwards
date Mon, 08 Jun 2015 10:01:25 -0400
parents 458df24e973d
children 576cc8154521
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1 /*
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2 * Read and execute the user commands
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3 *
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4 * @(#)command.c 9.0 (rdk) 7/17/84
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5 *
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6 * Super-Rogue
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7 * Copyright (C) 1984 Robert D. Kindelberger
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8 * All rights reserved.
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9 *
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10 * Based on "Rogue: Exploring the Dungeons of Doom"
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11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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12 * All rights reserved.
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13 *
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14 * See the file LICENSE.TXT for full copyright and licensing information.
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15 */
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16
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17 #include <ctype.h>
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18 #include <signal.h>
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19 #include <stdlib.h>
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20 #include <string.h>
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21 #include <limits.h>
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22 #include "rogue.h"
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23 #include "rogue.ext"
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24 #ifdef __DJGPP__
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25 #include <process.h>
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26 #else
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27 #include <unistd.h>
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28 #endif
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29
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30 /*
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31 * command:
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32 * Process the user commands
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33 */
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34 command()
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35 {
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36 reg char ch;
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37 reg int ntimes = 1; /* Number of player moves */
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38 static char countch, direction, newcount = FALSE;
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39
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40 if (pl_on(ISHASTE))
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41 ntimes++;
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42 /*
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43 * Let the daemons start up
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44 */
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45 while (ntimes-- > 0) {
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46 do_daemons(BEFORE);
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47 look(TRUE);
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48 if (!running)
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49 door_stop = FALSE;
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50 lastscore = purse;
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51 wmove(cw, hero.y, hero.x);
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52 if (!(running || count))
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53 draw(cw); /* Draw screen */
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54 take = 0;
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55 after = TRUE;
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56 /*
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57 * Read command or continue run
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58 */
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59 if (wizard)
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60 waswizard = TRUE;
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61 if (player.t_nocmd <= 0) {
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62 player.t_nocmd = 0;
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63 if (running)
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64 ch = runch;
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65 else if (count)
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66 ch = countch;
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67 else {
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68 ch = readchar();
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69 if (mpos != 0 && !running) /* Erase message if its there */
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70 msg("");
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71 }
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72 }
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73 else
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74 ch = '.';
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75 if (player.t_nocmd > 0) {
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76 if (--player.t_nocmd <= 0)
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77 msg("You can move again.");
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78 }
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79 else {
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80 /*
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81 * check for prefixes
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82 */
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83 if (isdigit(ch)) {
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84 count = 0;
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85 newcount = TRUE;
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86 while (isdigit(ch)) {
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87 count = count * 10 + (ch - '0');
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88 ch = readchar();
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89 }
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90 countch = ch;
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91 /*
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92 * turn off count for commands which don't make sense
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93 * to repeat
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94 */
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95 switch (ch) {
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96 case 'h': case 'j': case 'k': case 'l':
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97 case 'y': case 'u': case 'b': case 'n':
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98 case 'H': case 'J': case 'K': case 'L':
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99 case 'Y': case 'U': case 'B': case 'N':
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100 case 'q': case 'r': case 's': case 'f':
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101 case 't': case 'C': case 'I': case '.':
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102 case 'z': case 'p':
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103 break;
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104 default:
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105 count = 0;