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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
|
/*
* Directory routines for CUPS.
*
* This set of APIs abstracts enumeration of directory entries.
*
* Copyright 2007-2017 by Apple Inc.
* Copyright 1997-2005 by Easy Software Products, all rights reserved.
*
* Licensed under Apache License v2.0. See the file "LICENSE" for more information.
*/
/*
* Include necessary headers...
*/
#include "string-private.h"
#include "debug-internal.h"
#include "dir.h"
/*
* Windows implementation...
*/
#ifdef _WIN32
# include <windows.h>
/*
* Types and structures...
*/
struct _cups_dir_s /**** Directory data structure ****/
{
char directory[1024]; /* Directory filename */
HANDLE dir; /* Directory handle */
cups_dentry_t entry; /* Directory entry */
};
/*
* '_cups_dir_time()' - Convert a FILETIME value to a UNIX time value.
*/
time_t /* O - UNIX time */
_cups_dir_time(FILETIME ft) /* I - File time */
{
ULONGLONG val; /* File time in 0.1 usecs */
/*
* Convert file time (1/10 microseconds since Jan 1, 1601) to UNIX
* time (seconds since Jan 1, 1970). There are 11,644,732,800 seconds
* between them...
*/
val = ft.dwLowDateTime + ((ULONGLONG)ft.dwHighDateTime << 32);
return ((time_t)(val / 10000000 - 11644732800));
}
/*
* 'cupsDirClose()' - Close a directory.
*
* @since CUPS 1.2/macOS 10.5@
*/
void
cupsDirClose(cups_dir_t *dp) /* I - Directory pointer */
{
/*
* Range check input...
*/
if (!dp)
return;
/*
* Close an open directory handle...
*/
if (dp->dir != INVALID_HANDLE_VALUE)
FindClose(dp->dir);
/*
* Free memory used...
*/
free(dp);
}
/*
* 'cupsDirOpen()' - Open a directory.
*
* @since CUPS 1.2/macOS 10.5@
*/
cups_dir_t * /* O - Directory pointer or @code NULL@ if the directory could not be opened. */
cupsDirOpen(const char *directory) /* I - Directory name */
{
cups_dir_t *dp; /* Directory */
/*
* Range check input...
*/
if (!directory)
return (NULL);
/*
* Allocate memory for the directory structure...
*/
dp = (cups_dir_t *)calloc(1, sizeof(cups_dir_t));
if (!dp)
return (NULL);
/*
* Copy the directory name for later use...
*/
dp->dir = INVALID_HANDLE_VALUE;
strlcpy(dp->directory, directory, sizeof(dp->directory));
/*
* Return the new directory structure...
*/
return (dp);
}
/*
* 'cupsDirRead()' - Read the next directory entry.
*
* @since CUPS 1.2/macOS 10.5@
*/
cups_dentry_t * /* O - Directory entry or @code NULL@ if there are no more */
cupsDirRead(cups_dir_t *dp) /* I - Directory pointer */
{
WIN32_FIND_DATAA entry; /* Directory entry data */
/*
* Range check input...
*/
if (!dp)
return (NULL);
/*
* See if we have already started finding files...
*/
if (dp->dir == INVALID_HANDLE_VALUE)
{
/*
* No, find the first file...
*/
dp->dir = FindFirstFileA(dp->directory, &entry);
if (dp->dir == INVALID_HANDLE_VALUE)
return (NULL);
}
else if (!FindNextFileA(dp->dir, &entry))
return (NULL);
/*
* Copy the name over and convert the file information...
*/
strlcpy(dp->entry.filename, entry.cFileName, sizeof(dp->entry.filename));
if (entry.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
dp->entry.fileinfo.st_mode = 0755 | S_IFDIR;
else
dp->entry.fileinfo.st_mode = 0644;
dp->entry.fileinfo.st_atime = _cups_dir_time(entry.ftLastAccessTime);
dp->entry.fileinfo.st_ctime = _cups_dir_time(entry.ftCreationTime);
dp->entry.fileinfo.st_mtime = _cups_dir_time(entry.ftLastWriteTime);
dp->entry.fileinfo.st_size = entry.nFileSizeLow + ((unsigned long long)entry.nFileSizeHigh << 32);
/*
* Return the entry...
*/
return (&(dp->entry));
}
/*
* 'cupsDirRewind()' - Rewind to the start of the directory.
*
* @since CUPS 1.2/macOS 10.5@
*/
void
cupsDirRewind(cups_dir_t *dp) /* I - Directory pointer */
{
/*
* Range check input...
*/
if (!dp)
return;
/*
* Close an open directory handle...
*/
if (dp->dir != INVALID_HANDLE_VALUE)
{
FindClose(dp->dir);
dp->dir = INVALID_HANDLE_VALUE;
}
}
#else
/*
* POSIX implementation...
*/
# include <sys/types.h>
# include <dirent.h>
/*
* Types and structures...
*/
struct _cups_dir_s /**** Directory data structure ****/
{
char directory[1024]; /* Directory filename */
DIR *dir; /* Directory file */
cups_dentry_t entry; /* Directory entry */
};
/*
* 'cupsDirClose()' - Close a directory.
*
* @since CUPS 1.2/macOS 10.5@
*/
void
cupsDirClose(cups_dir_t *dp) /* I - Directory pointer */
{
DEBUG_printf(("cupsDirClose(dp=%p)", (void *)dp));
/*
* Range check input...
*/
if (!dp)
return;
/*
* Close the directory and free memory...
*/
closedir(dp->dir);
free(dp);
}
/*
* 'cupsDirOpen()' - Open a directory.
*
* @since CUPS 1.2/macOS 10.5@
*/
cups_dir_t * /* O - Directory pointer or @code NULL@ if the directory could not be opened. */
cupsDirOpen(const char *directory) /* I - Directory name */
{
cups_dir_t *dp; /* Directory */
DEBUG_printf(("cupsDirOpen(directory=\"%s\")", directory));
/*
* Range check input...
*/
if (!directory)
return (NULL);
/*
* Allocate memory for the directory structure...
*/
dp = (cups_dir_t *)calloc(1, sizeof(cups_dir_t));
if (!dp)
return (NULL);
/*
* Open the directory...
*/
dp->dir = opendir(directory);
if (!dp->dir)
{
free(dp);
return (NULL);
}
/*
* Copy the directory name for later use...
*/
strlcpy(dp->directory, directory, sizeof(dp->directory));
/*
* Return the new directory structure...
*/
return (dp);
}
/*
* 'cupsDirRead()' - Read the next directory entry.
*
* @since CUPS 1.2/macOS 10.5@
*/
cups_dentry_t * /* O - Directory entry or @code NULL@ when there are no more */
cupsDirRead(cups_dir_t *dp) /* I - Directory pointer */
{
struct dirent *entry; /* Pointer to entry */
char filename[1024]; /* Full filename */
DEBUG_printf(("2cupsDirRead(dp=%p)", (void *)dp));
/*
* Range check input...
*/
if (!dp)
return (NULL);
/*
* Try reading an entry that is not "." or ".."...
*/
for (;;)
{
/*
* Read the next entry...
*/
if ((entry = readdir(dp->dir)) == NULL)
{
DEBUG_puts("3cupsDirRead: readdir() returned a NULL pointer!");
return (NULL);
}
DEBUG_printf(("4cupsDirRead: readdir() returned \"%s\"...", entry->d_name));
/*
* Skip "." and ".."...
*/
if (!strcmp(entry->d_name, ".") || !strcmp(entry->d_name, ".."))
continue;
/*
* Copy the name over and get the file information...
*/
strlcpy(dp->entry.filename, entry->d_name, sizeof(dp->entry.filename));
snprintf(filename, sizeof(filename), "%s/%s", dp->directory, entry->d_name);
if (stat(filename, &(dp->entry.fileinfo)))
{
DEBUG_printf(("3cupsDirRead: stat() failed for \"%s\" - %s...", filename,
strerror(errno)));
continue;
}
/*
* Return the entry...
*/
return (&(dp->entry));
}
}
/*
* 'cupsDirRewind()' - Rewind to the start of the directory.
*
* @since CUPS 1.2/macOS 10.5@
*/
void
cupsDirRewind(cups_dir_t *dp) /* I - Directory pointer */
{
DEBUG_printf(("cupsDirRewind(dp=%p)", (void *)dp));
/*
* Range check input...
*/
if (!dp)
return;
/*
* Rewind the directory...
*/
rewinddir(dp->dir);
}
#endif /* _WIN32 */
|
