Mercurial > hg > early-roguelike

annotate arogue5/state.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 1cf517d5d2a8
children 56e748983fa8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
63
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
1 /*
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
2 state.c - Portable Rogue Save State Code
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
3
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
4 Copyright (C) 1999, 2000, 2005 Nicholas J. Kisseberth
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
5 All rights reserved.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
6
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
7 Redistribution and use in source and binary forms, with or without
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
8 modification, are permitted provided that the following conditions
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
9 are met:
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
10 1. Redistributions of source code must retain the above copyright
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
11 notice, this list of conditions and the following disclaimer.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
12 2. Redistributions in binary form must reproduce the above copyright
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
13 notice, this list of conditions and the following disclaimer in the
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
14 documentation and/or other materials provided with the distribution.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
15 3. Neither the name(s) of the author(s) nor the names of other contributors
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
16 may be used to endorse or promote products derived from this software
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
17 without specific prior written permission.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
18
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
19 THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTORS ``AS IS'' AND
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
20 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
21 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
22 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTORS BE LIABLE
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
23 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
24 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
25 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
26 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
27 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
28 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
29 SUCH DAMAGE.
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
30 */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
31
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
32 /************************************************************************/
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
33 /* Save State Code */
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
34 /************************************************************************/
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
35
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
36 #define RSID_STATS 0xABCD0001
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
37 #define RSID_MSTATS 0xABCD0002
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
38 #define RSID_THING 0xABCD0003
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
39 #define RSID_OBJECT 0xABCD0004
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
40 #define RSID_MAGICITEMS 0xABCD0005
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
41 #define RSID_KNOWS 0xABCD0006
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
42 #define RSID_GUESSES 0xABCD0007
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
43 #define RSID_OBJECTLIST 0xABCD0008
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
44 #define RSID_BAGOBJECT 0xABCD0009
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
45 #define RSID_MONSTERLIST 0xABCD000A
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
46 #define RSID_MONSTERSTATS 0xABCD000B
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
47 #define RSID_MONSTERS 0xABCD000C
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
48 #define RSID_TRAP 0xABCD000D
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
49 #define RSID_WINDOW 0xABCD000E
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
50 #define RSID_DAEMONS 0xABCD000F
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
51 #define RSID_STICKS 0xABCD0010
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
52 #define RSID_IARMOR 0xABCD0011
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
53 #define RSID_SPELLS 0xABCD0012
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
54 #define RSID_ILIST 0xABCD0013
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
55 #define RSID_HLIST 0xABCD0014
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
56 #define RSID_DEATHTYPE 0xABCD0015
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
57 #define RSID_CTYPES 0XABCD0016
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
58 #define RSID_COORDLIST 0XABCD0017
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
59 #define RSID_ROOMS 0XABCD0018
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
60
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
61 #include <curses.h>
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
62 #include <stdio.h>
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
63 #include <stdlib.h>
67
c49f7927b0fa arogue5: add missing header files.
elwin
parents: 63
diff changeset
64 #include <string.h>
63
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
65 #include "rogue.h"
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
66
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
67 #define READSTAT (format_error || read_error )
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
68 #define WRITESTAT (write_error)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
69
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
70 static int read_error = FALSE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
71 static int write_error = FALSE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
72 static int format_error = FALSE;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
73 static int endian = 0x01020304;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
74 #define big_endian ( *((char *)&endian) == 0x01 )
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
75
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
76 int
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
77 rs_write(FILE *savef, void *ptr, size_t size)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
78 {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
79 if (write_error)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
80 return(WRITESTAT);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
81
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
82 if (encwrite(ptr, size, savef) != size)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
83 write_error = 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
84
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
85 return(WRITESTAT);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
86 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
87
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
88 int
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
89 rs_read(int inf, void *ptr, size_t size)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
90 {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
91 if (read_error || format_error)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
92 return(READSTAT);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
93
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
94 if (encread(ptr, size, inf) != size)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
95 read_error = 1;
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
96
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
97 return(READSTAT);
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
98 }
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
99
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
100 int
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
101 rs_write_uchar(FILE *savef, unsigned char c)
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset
102 {
0ed67132cf10 Import Advanced Rogue 5.8 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff changeset