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
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/* windows.c */
/* implements Windows specific functions */
#include "dive.h"
#include "display.h"
#include <windows.h>
#include <shlobj.h>
#include <stdio.h>
#include <fcntl.h>
#include <assert.h>
#include <dirent.h>
#include <zip.h>
const char system_divelist_default_font[] = "Sans 8";
const char *system_default_filename(void)
{
char datapath[MAX_PATH];
const char *user;
char *buffer;
int len;
/* I don't think this works on Windows */
user = getenv("USERNAME");
if (! SUCCEEDED(SHGetFolderPath(NULL, CSIDL_APPDATA, NULL, 0, datapath))) {
datapath[0] = '.';
datapath[1] = '\0';
}
len = strlen(datapath) + strlen(user) + 17;
buffer = malloc(len);
snprintf(buffer, len, "%s\\Subsurface\\%s.xml", datapath, user);
return buffer;
}
int enumerate_devices (device_callback_t callback, void *userdata)
{
// Open the registry key.
HKEY hKey;
int index = -1;
LONG rc = RegOpenKeyEx (HKEY_LOCAL_MACHINE, "HARDWARE\\DEVICEMAP\\SERIALCOMM", 0, KEY_QUERY_VALUE, &hKey);
if (rc != ERROR_SUCCESS) {
return -1;
}
// Get the number of values.
DWORD count = 0;
rc = RegQueryInfoKey (hKey, NULL, NULL, NULL, NULL, NULL, NULL, &count, NULL, NULL, NULL, NULL);
if (rc != ERROR_SUCCESS) {
RegCloseKey(hKey);
return -1;
}
DWORD i;
for (i = 0; i < count; ++i) {
// Get the value name, data and type.
char name[512], data[512];
DWORD name_len = sizeof (name);
DWORD data_len = sizeof (data);
DWORD type = 0;
rc = RegEnumValue (hKey, i, name, &name_len, NULL, &type, (LPBYTE) data, &data_len);
if (rc != ERROR_SUCCESS) {
RegCloseKey(hKey);
return -1;
}
// Ignore non-string values.
if (type != REG_SZ)
continue;
// Prevent a possible buffer overflow.
if (data_len >= sizeof (data)) {
RegCloseKey(hKey);
return -1;
}
// Null terminate the string.
data[data_len] = 0;
callback (data, userdata);
index++;
if (is_default_dive_computer_device(name))
index = i;
}
RegCloseKey(hKey);
return index;
}
/* this function converts a utf-8 string to win32's utf-16 2 byte string.
* the caller function should manage the allocated memory.
*/
static wchar_t *utf8_to_utf16_fl(const char *utf8, char *file, int line)
{
assert(utf8 != NULL);
assert(file != NULL);
assert(line);
/* estimate buffer size */
const int sz = strlen(utf8) + 1;
wchar_t *utf16 = (wchar_t *)malloc(sizeof(wchar_t) * sz);
if (!utf16) {
fprintf(stderr, "%s:%d: %s %d.", file, line, "cannot allocate buffer of size", sz);
return NULL;
}
if (MultiByteToWideChar(CP_UTF8, 0, utf8, -1, utf16, sz))
return utf16;
fprintf(stderr, "%s:%d: %s", file, line, "cannot convert string.");
free((void *)utf16);
return NULL;
}
#define utf8_to_utf16(s) utf8_to_utf16_fl(s, __FILE__, __LINE__)
/* bellow we provide a set of wrappers for some I/O functions to use wchar_t.
* on win32 this solves the issue that we need paths to be utf-16 encoded.
*/
int subsurface_rename(const char *path, const char *newpath)
{
int ret = -1;
if (!path || !newpath)
return -1;
wchar_t *wpath = utf8_to_utf16(path);
wchar_t *wnewpath = utf8_to_utf16(newpath);
if (wpath && wnewpath)
ret = _wrename(wpath, wnewpath);
free((void *)wpath);
free((void *)wnewpath);
return ret;
}
int subsurface_open(const char *path, int oflags, mode_t mode)
{
int ret = -1;
if (!path)
return -1;
wchar_t *wpath = utf8_to_utf16(path);
if (wpath) {
ret = _wopen(wpath, oflags, mode);
free((void *)wpath);
return ret;
}
return ret;
}
FILE *subsurface_fopen(const char *path, const char *mode)
{
FILE *ret = NULL;
if (!path)
return ret;
wchar_t *wpath = utf8_to_utf16(path);
if (wpath) {
const int len = strlen(mode);
wchar_t wmode[len + 1];
for (int i = 0; i < len; i++)
wmode[i] = (wchar_t)mode[i];
wmode[len] = 0;
ret = _wfopen(wpath, wmode);
free((void *)wpath);
return ret;
}
return ret;
}
/* here we return a void pointer instead of _WDIR or DIR pointer */
void *subsurface_opendir(const char *path)
{
_WDIR *ret = NULL;
if (!path)
return ret;
wchar_t *wpath = utf8_to_utf16(path);
if (wpath) {
ret = _wopendir(wpath);
free((void *)wpath);
return (void *)ret;
}
return (void *)ret;
}
#ifndef O_BINARY
#define O_BINARY 0
#endif
struct zip *subsurface_zip_open_readonly(const char *path, int flags, int *errorp)
{
#if defined(LIBZIP_VERSION_MAJOR)
/* libzip 0.10 has zip_fdopen, let's use it since zip_open doesn't have a
* wchar_t version */
int fd = subsurface_open(path, O_RDONLY | O_BINARY, 0);
struct zip *ret = zip_fdopen(fd, flags, errorp);
if (!ret)
close(fd);
return ret;
#else
return zip_open(path, flags, errorp);
#endif
}
int subsurface_zip_close(struct zip *zip)
{
return zip_close(zip);
}
|
