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annotate rogue5/scmisc.c @ 162:600873555ec0

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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 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 * copies of several routines needed for score
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3 *
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4 * @(#)smisc.c 4.7 (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 # include <stdio.h>
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14 # include <sys/types.h>
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15 # include <sys/stat.h>
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16 # include <ctype.h>
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17
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18 # define TRUE 1
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19 # define FALSE 0
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20 # define MAXSTR 80
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21 # define when break;case
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22 # define otherwise break;default
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23
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24 typedef struct {
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25 char *m_name;
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26 } MONST;
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27
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28 char *s_vowelstr();
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29
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30 char *lockfile = "/tmp/.fredlock";
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31
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32 char prbuf[MAXSTR]; /* buffer for sprintfs */
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33
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34 MONST monsters[] = {
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35 { "aquator" }, { "bat" }, { "centaur" }, { "dragon" }, { "emu" },
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36 { "venus flytrap" }, { "griffin" }, { "hobgoblin" }, { "ice monster" },
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37 { "jabberwock" }, { "kobold" }, { "leprechaun" }, { "medusa" },
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38 { "nymph" }, { "orc" }, { "phantom" }, { "quasit" }, { "rattlesnake" },
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39 { "snake" }, { "troll" }, { "ur-vile" }, { "vampire" }, { "wraith" },
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40 { "xeroc" }, { "yeti" }, { "zombie" }
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41 };
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42
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43 /*
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44 * s_lock_sc:
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45 * lock the score file. If it takes too long, ask the user if
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46 * they care to wait. Return TRUE if the lock is successful.
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47 */
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48 int
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49 s_lock_sc(void)
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50 {
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51 int cnt;
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52 struct stat sbuf;
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53
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54 over:
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55 close(8); /* just in case there are no files left */
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56 if (creat(lockfile, 0000) >= 0)
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57 return TRUE;
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58 for (cnt = 0; cnt < 5; cnt++)
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59 {
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60 md_sleep(1);
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61 if (creat(lockfile, 0000) >= 0)
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62 return TRUE;
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63 }
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64 if (stat(lockfile, &sbuf) < 0)
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65 {
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66 creat(lockfile, 0000);
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67 return TRUE;
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68 }
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69 if (time(NULL) - sbuf.st_mtime > 10)
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70 {
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71 if (md_unlink(lockfile) < 0)
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72 return FALSE;
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73 goto over;
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74 }
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75 else
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76 {
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77 printf("The score file is very busy. Do you want to wait longer\n");
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78 printf("for it to become free so your score can get posted?\n");
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79 printf("If so, type \"y\"\n");
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80 (void) fgets(prbuf, MAXSTR, stdin);
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81 if (prbuf[0] == 'y')
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82 for (;;)
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83 {
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84 if (creat(lockfile, 0000) >= 0)
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85 return TRUE;
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86 if (stat(lockfile, &sbuf) < 0)
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87 {
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88 creat(lockfile, 0000);
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89 return TRUE;
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90 }
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91 if (time(NULL) - sbuf.st_mtime > 10)
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92 {
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93 if (md_unlink(lockfile) < 0)
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94 return FALSE;
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95 }
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96 md_sleep(1);
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97 }
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98 else
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99 return FALSE;
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100 }
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101 }
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102
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103 /*
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104 * s_unlock_sc:
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105 * Unlock the score file
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106 */
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107 void