-
Notifications
You must be signed in to change notification settings - Fork 635
Expand file tree
/
Copy pathdlb.h
More file actions
147 lines (126 loc) · 3.79 KB
/
Copy pathdlb.h
File metadata and controls
147 lines (126 loc) · 3.79 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
/* NetHack 5.0 dlb.h $NHDT-Date: 1781973079 2026/06/20 16:31:19 $ $NHDT-Branch: NetHack-5.0 $:$NHDT-Revision: 1.18 $ */
/* Copyright (c) Kenneth Lorber, Bethesda, Maryland, 1993. */
/* NetHack may be freely redistributed. See license for details. */
#ifndef DLB_H
#define DLB_H
/* definitions for data library */
#ifdef DLB
/* implementations */
#if defined(MAC68K) && !defined(MAC68K_CROSS)
#define DLBRSRC /* use Mac resources */
#else
#define DLBLIB /* use a set of external files */
#endif
#ifdef DLBLIB
/* directory structure in memory */
typedef struct dlb_directory {
char *fname; /* file name as seen from calling code */
long foffset; /* offset in lib file to start of this file */
long fsize; /* file size */
char handling; /* how to handle the file (compression, etc) */
} libdir;
/* information about each open library */
typedef struct dlb_library {
FILE *fdata; /* opened data file */
long fmark; /* current file mark */
libdir *dir; /* directory of library file */
char *sspace; /* pointer to string space */
long nentries; /* # of files in directory */
long rev; /* dlb file revision */
long strsize; /* dlb file string size */
} library;
/* library definitions */
#ifndef DLBFILE
#ifndef VERSION_IN_DLB_FILENAME
#define DLBFILE "nhdat" /* name of library */
#else
#define MAX_DLB_FILENAME 256
#define DLBFILE dlbfilename
#define DLBBASENAME "nhdat"
extern char dlbfilename[MAX_DLB_FILENAME];
extern char *build_dlb_filename(const char *);
#endif
#endif
#ifndef FILENAME_CMP
#define FILENAME_CMP strcmp /* case sensitive */
#endif
#endif /* DLBLIB */
typedef struct dlb_handle {
FILE *fp; /* pointer to an external file, use if non-null */
#ifdef DLBLIB
library *lib; /* pointer to library structure */
long start; /* offset of start of file */
long size; /* size of file */
long mark; /* current file marker */
#endif
#ifdef DLBRSRC
int fd; /* HandleFile file descriptor */
#endif
} dlb;
#if defined(ULTRIX_PROTO) && !defined(__STDC__)
/* buggy old Ultrix compiler wants this for the (*dlb_fread_proc)
and (*dlb_fgets_proc) prototypes in struct dlb_procs (dlb.c);
we'll use it in all the declarations for consistency */
#define DLB_P struct dlb_handle *
#else
#define DLB_P dlb *
#endif
boolean dlb_init(void);
void dlb_cleanup(void);
dlb *dlb_fopen(const char *, const char *);
int dlb_fclose(DLB_P);
int dlb_fread(char *, int, int, DLB_P);
int dlb_fseek(DLB_P, long, int);
char *dlb_fgets(char *, int, DLB_P);
int dlb_fgetc(DLB_P);
long dlb_ftell(DLB_P);
/* Resource DLB entry points */
#ifdef DLBRSRC
boolean rsrc_dlb_init(void);
void rsrc_dlb_cleanup(void);
boolean rsrc_dlb_fopen(dlb *dp, const char *name, const char *mode);
int rsrc_dlb_fclose(dlb *dp);
int rsrc_dlb_fread(char *buf, int size, int quan, dlb *dp);
int rsrc_dlb_fseek(dlb *dp, long pos, int whence);
char *rsrc_dlb_fgets(char *buf, int len, dlb *dp);
int rsrc_dlb_fgetc(dlb *dp);
long rsrc_dlb_ftell(dlb *dp);
#endif
#else /* DLB */
#define dlb FILE
#define dlb_init()
#define dlb_cleanup()
#define dlb_fopen fopen
#define dlb_fclose fclose
#define dlb_fread fread
#define dlb_fseek fseek
#define dlb_fgets fgets
#define dlb_fgetc fgetc
#define dlb_ftell ftell
#endif /* DLB */
/* various other I/O stuff we don't want to replicate everywhere */
#ifndef SEEK_SET
#define SEEK_SET 0
#endif
#ifndef SEEK_CUR
#define SEEK_CUR 1
#endif
#ifndef SEEK_END
#define SEEK_END 2
#endif
#define RDTMODE "r"
#if (defined(MSDOS) || defined(WIN32) || defined(TOS) || defined(OS2)) \
&& defined(DLB)
#define WRTMODE "w+b"
#else
#define WRTMODE "w+"
#endif
#if (defined(MICRO) && !defined(AMIGA)) || defined(THINK_C) \
|| defined(__MWERKS__) || defined(WIN32)
#define RDBMODE "rb"
#define WRBMODE "w+b"
#else
#define RDBMODE "r"
#define WRBMODE "w+"
#endif
#endif /* DLB_H */