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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2006 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "common/stdafx.h"
#include "common/savefile.h"
#include "common/util.h"
#include "backends/saves/default/default-saves.h"
#include "backends/saves/compressed/compressed-saves.h"
#include <stdio.h>
#include <string.h>
#if defined(UNIX) || defined(__SYMBIAN32__)
#include <errno.h>
#include <sys/stat.h>
#endif
class StdioSaveFile : public Common::InSaveFile, public Common::OutSaveFile {
private:
FILE *fh;
public:
StdioSaveFile(const char *filename, bool saveOrLoad) {
fh = ::fopen(filename, (saveOrLoad? "wb" : "rb"));
}
~StdioSaveFile() {
if (fh)
::fclose(fh);
}
bool eos() const { return feof(fh) != 0; }
bool ioFailed() const { return ferror(fh) != 0; }
void clearIOFailed() { clearerr(fh); }
bool isOpen() const { return fh != 0; }
uint32 read(void *dataPtr, uint32 dataSize) {
assert(fh);
return fread(dataPtr, 1, dataSize, fh);
}
uint32 write(const void *dataPtr, uint32 dataSize) {
assert(fh);
return fwrite(dataPtr, 1, dataSize, fh);
}
uint32 pos() const {
assert(fh);
return ftell(fh);
}
uint32 size() const {
assert(fh);
uint32 oldPos = ftell(fh);
fseek(fh, 0, SEEK_END);
uint32 length = ftell(fh);
fseek(fh, oldPos, SEEK_SET);
return length;
}
void seek(int32 offs, int whence = SEEK_SET) {
assert(fh);
fseek(fh, offs, whence);
}
};
static void join_paths(const char *filename, const char *directory,
char *buf, int bufsize) {
buf[bufsize-1] = '\0';
strncpy(buf, directory, bufsize-1);
#ifdef WIN32
// Fix for Win98 issue related with game directory pointing to root drive ex. "c:\"
if ((buf[0] != 0) && (buf[1] == ':') && (buf[2] == '\\') && (buf[3] == 0)) {
buf[2] = 0;
}
#endif
const int dirLen = strlen(buf);
if (dirLen > 0) {
#if defined(__MORPHOS__) || defined(__amigaos4__)
if (buf[dirLen-1] != ':' && buf[dirLen-1] != '/')
#endif
#if !defined(__GP32__)
strncat(buf, "/", bufsize-1); // prevent double /
#endif
}
strncat(buf, filename, bufsize-1);
}
Common::OutSaveFile *DefaultSaveFileManager::openForSaving(const char *filename) {
char buf[256];
// Ensure that the savepath exists and is writeable. If not, generate
// an appropriate error
const char *savePath = getSavePath();
#if defined(UNIX) || defined(__SYMBIAN32__)
struct stat sb;
// Check whether the dir exists
if (stat(savePath, &sb) == -1) {
// The dir does not exist, or stat failed for some other reason.
// If the problem was that the path pointed to nothing, try
// to create the dir.
if (errno == ENOENT) {
if (mkdir(savePath, 0755) != 0) {
// mkdir could fail for various reasons: The parent dir doesn't exist,
// or is not writeable, the path could be completly bogus, etc.
warning("mkdir for '%s' failed!", savePath);
perror("mkdir");
// TODO: Specify an error code here so that callers can
// determine what exactly went wrong.
return 0;
}
} else {
// Unknown error, abort.
// TODO: Specify an error code here so that callers can
// determine what exactly went wrong.
return 0;
}
} else {
// So stat() succeeded. But is the path actually pointing to a
// directory?
if (!S_ISDIR(sb.st_mode)) {
// TODO: Specify an error code here so that callers can
// determine what exactly went wrong.
return 0;
}
}
#endif
join_paths(filename, savePath, buf, sizeof(buf));
StdioSaveFile *sf = new StdioSaveFile(buf, true);
if (!sf->isOpen()) {
delete sf;
sf = 0;
}
return wrapOutSaveFile(sf);
}
Common::InSaveFile *DefaultSaveFileManager::openForLoading(const char *filename) {
char buf[256];
join_paths(filename, getSavePath(), buf, sizeof(buf));
StdioSaveFile *sf = new StdioSaveFile(buf, false);
if (!sf->isOpen()) {
delete sf;
sf = 0;
}
return wrapInSaveFile(sf);
}
void DefaultSaveFileManager::listSavefiles(const char * /* prefix */, bool *marks, int num) {
// TODO: Implement this properly, at least on systems that support
// opendir/readdir.
// Even better, replace this with a better design...
memset(marks, true, num * sizeof(bool));
}
|
