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
|
%% options
copyright owner = Dirk Krause
copyright year = 2015-xxxx
license = bsd
%% module
#include "dk4filei.h"
#ifndef DK4MEM_H_INCLUDED
#include "dk4mem.h"
#endif
#ifndef DK4STAT8_H_INCLUDED
#include "dk4statw.h"
#endif
#ifndef DK4ERROR_H_INCLUDED
#include "dk4error.h"
#endif
$!trace-include
int
dk4fileinfo_wc(dk4_file_info_t *dptr, const wchar_t *fn, dk4_er_t *erp)
{
dk4_er_t er;
#if DK4_ON_WINDOWS
WIN32_FIND_DATAW ffdata;
HANDLE ha;
DWORD dwatt;
int i;
int found;
int isdir;
#endif
int back = 0;
$? "+ dk4fileinfo_wc"
if ((NULL != dptr) && (NULL != fn)) { $? ". args ok"
dk4error_init(&er);
DK4_MEMRES(dptr, sizeof(dk4_file_info_t));
dptr->contents = 0;
#if DK4_ON_WINDOWS
dptr->rppnt = (DWORD)0UL;
dptr->fattr = GetFileAttributesW(fn);
dptr->resio = 0UL;
if (INVALID_FILE_ATTRIBUTES == dptr->fattr) {
ha = FindFirstFileW(fn, &ffdata);
if (INVALID_HANDLE_VALUE != ha) {
dptr->fattr = ffdata.dwFileAttributes;
FindClose(ha);
}
}
if (INVALID_FILE_ATTRIBUTES != dptr->fattr) {
isdir = 0;
if (0 != (FILE_ATTRIBUTE_DIRECTORY & (dptr->fattr))) { isdir = 1; }
/* Symlink */
found = 0; $? ". symlink"
for (i = 0; ((3 > i) && (0 == found)); i++) { $? ". pass %d", i
dwatt = dptr->fattr;
dwatt |= FILE_FLAG_OPEN_REPARSE_POINT;
if (0 != isdir) { dwatt |= FILE_FLAG_BACKUP_SEMANTICS; }
ha = CreateFileW(
fn,
(
(0 == i)
? (0) :
((1 == i) ? (FILE_READ_ATTRIBUTES) : (GENERIC_READ))
),
(FILE_SHARE_READ | FILE_SHARE_WRITE),
NULL,
OPEN_EXISTING,
dwatt,
NULL
);
if (INVALID_HANDLE_VALUE != ha) { $? ". handle"
if (GetFileInformationByHandle(ha, &(dptr->linfo))) {
found = 1; $? ". file information"
back = 1;
dptr->contents |= DK4_FILE_INFO_CONTENTS_DATA_LINK;
} else { $? "! file information"
if (1 == i) {
dk4error_set_ldetails(
&er, DK4_E_FILE_INFORMATION_FAILED,
(long)((unsigned long)GetLastError())
);
}
}
CloseHandle(ha);
} else { $? "! CreateFile"
if (1 == i) {
dk4error_set_ldetails(
&er, DK4_E_CREATE_FILE_FAILED,
(long)((unsigned long)GetLastError())
);
}
}
}
/* Target */
found = 0; $? ". target"
for (i = 0; ((3 > i) && (0 == found)); i++) { $? ". pass %d", i
dwatt = dptr->fattr;
if (0 != isdir) { dwatt |= FILE_FLAG_BACKUP_SEMANTICS; }
ha = CreateFileW(
fn,
(
(0 == i)
? (0)
: ((1 == i) ? (FILE_READ_ATTRIBUTES) : (GENERIC_READ))
),
(FILE_SHARE_READ | FILE_SHARE_WRITE),
NULL,
OPEN_EXISTING,
dwatt,
NULL
);
if (INVALID_HANDLE_VALUE != ha) { $? ". CreateFile"
if (GetFileInformationByHandle(ha, &(dptr->tinfo))) {
found = 1; $? ". file info"
back = 1;
dptr->contents |= DK4_FILE_INFO_CONTENTS_DATA_TARGET;
} else { $? "! file info"
if (1 == i) {
dk4error_set_ldetails(
&er, DK4_E_FILE_INFORMATION_FAILED,
(long)((unsigned long)GetLastError())
);
}
}
CloseHandle(ha);
} else { $? "! CreateFile"
if (1 == i) {
dk4error_set_ldetails(
&er, DK4_E_CREATE_FILE_FAILED,
(long)((unsigned long)GetLastError())
);
}
}
}
/* FindFirstFile */
if (0 != back) { $? ". information already found"
ha = FindFirstFileW(fn, &ffdata);
if (INVALID_HANDLE_VALUE != ha) { $? ". FindFirstFile"
dptr->fattr = ffdata.dwFileAttributes;
dptr->rppnt = ffdata.dwReserved0;
FindClose(ha);
}
} else { $? ". no information yet"
ha = FindFirstFileW(fn, &ffdata);
if (INVALID_HANDLE_VALUE != ha) { $? ". FindFirstFileW"
back = 1;
dptr->fattr = ffdata.dwFileAttributes;
dptr->rppnt = ffdata.dwReserved0;
dptr->resio = 1UL;
(dptr->linfo).dwFileAttributes = ffdata.dwFileAttributes;
(dptr->linfo).ftCreationTime = ffdata.ftCreationTime;
(dptr->linfo).ftLastAccessTime = ffdata.ftLastAccessTime;
(dptr->linfo).ftLastWriteTime = ffdata.ftLastWriteTime;
(dptr->linfo).nFileSizeHigh = ffdata.nFileSizeHigh;
(dptr->linfo).nFileSizeLow = ffdata.nFileSizeLow;
(dptr->tinfo).dwFileAttributes = ffdata.dwFileAttributes;
(dptr->tinfo).ftCreationTime = ffdata.ftCreationTime;
(dptr->tinfo).ftLastAccessTime = ffdata.ftLastAccessTime;
(dptr->tinfo).ftLastWriteTime = ffdata.ftLastWriteTime;
(dptr->tinfo).nFileSizeHigh = ffdata.nFileSizeHigh;
(dptr->tinfo).nFileSizeLow = ffdata.nFileSizeLow;
dptr->contents |= DK4_FILE_INFO_CONTENTS_DATA_TARGET;
dptr->contents |= DK4_FILE_INFO_CONTENTS_DATA_LINK;
FindClose(ha);
} else { $? "! FindFirstFileW"
}
}
} else {
/* ERROR: GetFileAttributes failed! */
dk4error_set_ldetails(
&er, DK4_E_SYSTEM,
(long)((unsigned long)GetLastError())
);
}
#else
dk4error_set_simple_error_code(&er, DK4_E_NOT_SUPPORTED);
#endif
if (0 == back) {
dk4error_copy(erp, &er);
}
} else { $? "! args"
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
} $? "- dk4fileinfo_wc %d", back
return back;
}
|