Mercurial > hg > early-roguelike

annotate rogue5/scmisc.c @ 176:db1c9a21a7c3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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 f502bf60e6e4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
33
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
1 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
2 * copies of several routines needed for score
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
3 *
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
4 * @(#)smisc.c 4.7 (Berkeley) 02/05/99
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
5 *
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
6 * Rogue: Exploring the Dungeons of Doom
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
7 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
8 * All rights reserved.
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
9 *
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
10 * See the file LICENSE.TXT for full copyright and licensing information.
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
11 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
12
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
13 # include <stdio.h>
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
14 # include <sys/types.h>
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
15 # include <sys/stat.h>
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
16 # include <ctype.h>
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
17
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
18 # define TRUE 1
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
19 # define FALSE 0
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
20 # define MAXSTR 80
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
21 # define when break;case
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
22 # define otherwise break;default
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
23
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
24 typedef struct {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
25 char *m_name;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
26 } MONST;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
27
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
28 char *s_vowelstr();
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
29
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
30 char *lockfile = "/tmp/.fredlock";
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
31
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
32 char prbuf[MAXSTR]; /* buffer for sprintfs */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
33
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
34 MONST monsters[] = {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
35 { "aquator" }, { "bat" }, { "centaur" }, { "dragon" }, { "emu" },
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
36 { "venus flytrap" }, { "griffin" }, { "hobgoblin" }, { "ice monster" },
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
37 { "jabberwock" }, { "kobold" }, { "leprechaun" }, { "medusa" },
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
38 { "nymph" }, { "orc" }, { "phantom" }, { "quasit" }, { "rattlesnake" },
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
39 { "snake" }, { "troll" }, { "ur-vile" }, { "vampire" }, { "wraith" },
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
40 { "xeroc" }, { "yeti" }, { "zombie" }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
41 };
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
42
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
43 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
44 * s_lock_sc:
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
45 * lock the score file. If it takes too long, ask the user if
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
46 * they care to wait. Return TRUE if the lock is successful.
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
47 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
48 int
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
49 s_lock_sc(void)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
50 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
51 int cnt;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
52 struct stat sbuf;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
53
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
54 over:
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
55 close(8); /* just in case there are no files left */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
56 if (creat(lockfile, 0000) >= 0)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
57 return TRUE;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
58 for (cnt = 0; cnt < 5; cnt++)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
59 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
60 md_sleep(1);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
61 if (creat(lockfile, 0000) >= 0)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
62 return TRUE;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
63 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
64 if (stat(lockfile, &sbuf) < 0)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
65 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
66 creat(lockfile, 0000);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
67 return TRUE;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
68 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
69 if (time(NULL) - sbuf.st_mtime > 10)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
70 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
71 if (md_unlink(lockfile) < 0)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
72 return FALSE;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
73 goto over;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
74 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
75 else
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
76 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
77 printf("The score file is very busy. Do you want to wait longer\n");
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
78 printf("for it to become free so your score can get posted?\n");
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
79 printf("If so, type \"y\"\n");
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
80 (void) fgets(prbuf, MAXSTR, stdin);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
81 if (prbuf[0] == 'y')
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
82 for (;;)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
83 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
84 if (creat(lockfile, 0000) >= 0)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
85 return TRUE;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
86 if (stat(lockfile, &sbuf) < 0)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
87 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
88 creat(lockfile, 0000);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
89 return TRUE;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
90 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
91 if (time(NULL) - sbuf.st_mtime > 10)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
92 {
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
93 if (md_unlink(lockfile) < 0)
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
94 return FALSE;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
95 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
96 md_sleep(1);
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
97 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
98 else
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
99 return FALSE;
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
100 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
101 }
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
102
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
103 /*
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
104 * s_unlock_sc:
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
105 * Unlock the score file
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
106 */
f502bf60e6e4 Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents: