1 /******************************************************************************
2 *
3 * Module Name: oswindir - Windows directory access interfaces
4 *
5 *****************************************************************************/
6
7 /******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2023, Intel Corp.
12 * All rights reserved.
13 *
14 * 2. License
15 *
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
19 * property rights.
20 *
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
27 *
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
36 *
37 * The above copyright and patent license is granted only if the following
38 * conditions are met:
39 *
40 * 3. Conditions
41 *
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
53 *
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
64 * make.
65 *
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
70 * distribution.
71 *
72 * 3.4. Intel retains all right, title, and interest in and to the Original
73 * Intel Code.
74 *
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
79 *
80 * 4. Disclaimer and Export Compliance
81 *
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88 * PARTICULAR PURPOSE.
89 *
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97 * LIMITED REMEDY.
98 *
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
113 *
114 *****************************************************************************
115 *
116 * Alternatively, you may choose to be licensed under the terms of the
117 * following license:
118 *
119 * Redistribution and use in source and binary forms, with or without
120 * modification, are permitted provided that the following conditions
121 * are met:
122 * 1. Redistributions of source code must retain the above copyright
123 * notice, this list of conditions, and the following disclaimer,
124 * without modification.
125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126 * substantially similar to the "NO WARRANTY" disclaimer below
127 * ("Disclaimer") and any redistribution must be conditioned upon
128 * including a substantially similar Disclaimer requirement for further
129 * binary redistribution.
130 * 3. Neither the names of the above-listed copyright holders nor the names
131 * of any contributors may be used to endorse or promote products derived
132 * from this software without specific prior written permission.
133 *
134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145 *
146 * Alternatively, you may choose to be licensed under the terms of the
147 * GNU General Public License ("GPL") version 2 as published by the Free
148 * Software Foundation.
149 *
150 *****************************************************************************/
151
152 #include <acpi.h>
153
154 #include <stdio.h>
155 #include <stdlib.h>
156 #include <string.h>
157 #include <io.h>
158
159 typedef struct ExternalFindInfo
160 {
161 struct _finddata_t DosInfo;
162 char *FullWildcardSpec;
163 long FindHandle;
164 char State;
165 char RequestedFileType;
166
167 } EXTERNAL_FIND_INFO;
168
169
170 /*******************************************************************************
171 *
172 * FUNCTION: AcpiOsOpenDirectory
173 *
174 * PARAMETERS: DirPathname - Full pathname to the directory
175 * WildcardSpec - string of the form "*.c", etc.
176 * RequestedFileType - Either a directory or normal file
177 *
178 * RETURN: A directory "handle" to be used in subsequent search operations.
179 * NULL returned on failure.
180 *
181 * DESCRIPTION: Open a directory in preparation for a wildcard search
182 *
183 ******************************************************************************/
184
185 void *
AcpiOsOpenDirectory(char * DirPathname,char * WildcardSpec,char RequestedFileType)186 AcpiOsOpenDirectory (
187 char *DirPathname,
188 char *WildcardSpec,
189 char RequestedFileType)
190 {
191 long FindHandle;
192 char *FullWildcardSpec;
193 EXTERNAL_FIND_INFO *SearchInfo;
194
195
196 /* No directory path means "use current directory" - use a dot */
197
198 if (!DirPathname || strlen (DirPathname) == 0)
199 {
200 DirPathname = ".";
201 }
202
203 /* Allocate the info struct that will be returned to the caller */
204
205 SearchInfo = calloc (sizeof (EXTERNAL_FIND_INFO), 1);
206 if (!SearchInfo)
207 {
208 return (NULL);
209 }
210
211 /* Allocate space for the full wildcard path */
212
213 FullWildcardSpec = calloc (
214 strlen (DirPathname) + strlen (WildcardSpec) + 2, 1);
215 if (!FullWildcardSpec)
216 {
217 printf ("Could not allocate buffer for wildcard pathname\n");
218 free (SearchInfo);
219 return (NULL);
220 }
221
222 /* Create the full wildcard path */
223
224 strcpy (FullWildcardSpec, DirPathname);
225 strcat (FullWildcardSpec, "/");
226 strcat (FullWildcardSpec, WildcardSpec);
227
228 /* Initialize the find functions, get first match */
229
230 FindHandle = _findfirst (FullWildcardSpec, &SearchInfo->DosInfo);
231 if (FindHandle == -1)
232 {
233 /* Failure means that no match was found */
234
235 free (FullWildcardSpec);
236 free (SearchInfo);
237 return (NULL);
238 }
239
240 /* Save the info in the return structure */
241
242 SearchInfo->RequestedFileType = RequestedFileType;
243 SearchInfo->FullWildcardSpec = FullWildcardSpec;
244 SearchInfo->FindHandle = FindHandle;
245 SearchInfo->State = 0;
246 return (SearchInfo);
247 }
248
249
250 /*******************************************************************************
251 *
252 * FUNCTION: AcpiOsGetNextFilename
253 *
254 * PARAMETERS: DirHandle - Created via AcpiOsOpenDirectory
255 *
256 * RETURN: Next filename matched. NULL if no more matches.
257 *
258 * DESCRIPTION: Get the next file in the directory that matches the wildcard
259 * specification.
260 *
261 ******************************************************************************/
262
263 char *
AcpiOsGetNextFilename(void * DirHandle)264 AcpiOsGetNextFilename (
265 void *DirHandle)
266 {
267 EXTERNAL_FIND_INFO *SearchInfo = DirHandle;
268 int Status;
269 char FileTypeNotMatched = 1;
270
271
272 /*
273 * Loop while we have matched files but not found any files of
274 * the requested type.
275 */
276 while (FileTypeNotMatched)
277 {
278 /* On the first call, we already have the first match */
279
280 if (SearchInfo->State == 0)
281 {
282 /* No longer the first match */
283
284 SearchInfo->State = 1;
285 }
286 else
287 {
288 /* Get the next match */
289
290 Status = _findnext (SearchInfo->FindHandle, &SearchInfo->DosInfo);
291 if (Status != 0)
292 {
293 return (NULL);
294 }
295 }
296
297 /*
298 * Found a match, now check to make sure that the file type
299 * matches the requested file type (directory or normal file)
300 *
301 * NOTE: use of the attrib field saves us from doing a very
302 * expensive stat() on the file!
303 */
304 switch (SearchInfo->RequestedFileType)
305 {
306 case REQUEST_FILE_ONLY:
307
308 /* Anything other than A_SUBDIR is OK */
309
310 if (!(SearchInfo->DosInfo.attrib & _A_SUBDIR))
311 {
312 FileTypeNotMatched = 0;
313 }
314 break;
315
316 case REQUEST_DIR_ONLY:
317
318 /* Must have A_SUBDIR bit set */
319
320 if (SearchInfo->DosInfo.attrib & _A_SUBDIR)
321 {
322 FileTypeNotMatched = 0;
323 }
324 break;
325
326 default:
327
328 return (NULL);
329 }
330 }
331
332 return (SearchInfo->DosInfo.name);
333 }
334
335
336 /*******************************************************************************
337 *
338 * FUNCTION: AcpiOsCloseDirectory
339 *
340 * PARAMETERS: DirHandle - Created via AcpiOsOpenDirectory
341 *
342 * RETURN: None
343 *
344 * DESCRIPTION: Close the open directory and cleanup.
345 *
346 ******************************************************************************/
347
348 void
AcpiOsCloseDirectory(void * DirHandle)349 AcpiOsCloseDirectory (
350 void *DirHandle)
351 {
352 EXTERNAL_FIND_INFO *SearchInfo = DirHandle;
353
354
355 /* Close the directory and free allocations */
356
357 _findclose (SearchInfo->FindHandle);
358 free (SearchInfo->FullWildcardSpec);
359 free (DirHandle);
360 }
361
