1 /*-
2 * Copyright (c) 2017 Netflix, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26 /*
27 * Taken from MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.h
28 * hash a11928f3310518ab1c6fd34e8d0fdbb72de9602c 2017-Mar-01
29 */
30
31 /** @file
32 Definition for Device Path library.
33
34 Copyright (c) 2013 - 2015, Intel Corporation. All rights reserved.<BR>
35 This program and the accompanying materials
36 are licensed and made available under the terms and conditions of the BSD License
37 which accompanies this distribution. The full text of the license may be found at
38 http://opensource.org/licenses/bsd-license.php
39
40 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
41 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
42
43 **/
44
45 #ifndef _UEFI_DEVICE_PATH_LIB_H_
46 #define _UEFI_DEVICE_PATH_LIB_H_
47 #include <Uefi.h>
48 #include <Protocol/DevicePathUtilities.h>
49 #include <Protocol/DebugPort.h>
50 #include <Protocol/DevicePathToText.h>
51 #include <Protocol/DevicePathFromText.h>
52 #include <Guid/PcAnsi.h>
53 #include <Library/DebugLib.h>
54 #include <Library/PrintLib.h>
55 #include <Library/BaseLib.h>
56 #include <Library/BaseMemoryLib.h>
57 #include <Library/MemoryAllocationLib.h>
58 #include <Library/UefiBootServicesTableLib.h>
59 #include <Library/DevicePathLib.h>
60 #include <Library/PcdLib.h>
61 #include <IndustryStandard/Bluetooth.h>
62
63 #define IS_COMMA(a) ((a) == ',')
64 #define IS_HYPHEN(a) ((a) == '-')
65 #define IS_DOT(a) ((a) == '.')
66 #define IS_LEFT_PARENTH(a) ((a) == '(')
67 #define IS_RIGHT_PARENTH(a) ((a) == ')')
68 #define IS_SLASH(a) ((a) == '/')
69 #define IS_NULL(a) ((a) == '\0')
70
71
72 //
73 // Private Data structure
74 //
75 typedef struct {
76 char *Str;
77 UINTN Count;
78 UINTN Capacity;
79 } POOL_PRINT;
80
81 typedef
82 EFI_DEVICE_PATH_PROTOCOL *
83 (*DEVICE_PATH_FROM_TEXT) (
84 IN char *Str
85 );
86
87 typedef
88 VOID
89 (*DEVICE_PATH_TO_TEXT) (
90 IN OUT POOL_PRINT *Str,
91 IN VOID *DevicePath,
92 IN BOOLEAN DisplayOnly,
93 IN BOOLEAN AllowShortcuts
94 );
95
96 typedef struct {
97 UINT8 Type;
98 UINT8 SubType;
99 DEVICE_PATH_TO_TEXT Function;
100 } DEVICE_PATH_TO_TEXT_TABLE;
101
102 typedef struct {
103 UINT8 Type;
104 const char *Text;
105 } DEVICE_PATH_TO_TEXT_GENERIC_TABLE;
106
107 typedef struct {
108 const char *DevicePathNodeText;
109 DEVICE_PATH_FROM_TEXT Function;
110 } DEVICE_PATH_FROM_TEXT_TABLE;
111
112 typedef struct {
113 BOOLEAN ClassExist;
114 UINT8 Class;
115 BOOLEAN SubClassExist;
116 UINT8 SubClass;
117 } USB_CLASS_TEXT;
118
119 #define USB_CLASS_AUDIO 1
120 #define USB_CLASS_CDCCONTROL 2
121 #define USB_CLASS_HID 3
122 #define USB_CLASS_IMAGE 6
123 #define USB_CLASS_PRINTER 7
124 #define USB_CLASS_MASS_STORAGE 8
125 #define USB_CLASS_HUB 9
126 #define USB_CLASS_CDCDATA 10
127 #define USB_CLASS_SMART_CARD 11
128 #define USB_CLASS_VIDEO 14
129 #define USB_CLASS_DIAGNOSTIC 220
130 #define USB_CLASS_WIRELESS 224
131
132 #define USB_CLASS_RESERVE 254
133 #define USB_SUBCLASS_FW_UPDATE 1
134 #define USB_SUBCLASS_IRDA_BRIDGE 2
135 #define USB_SUBCLASS_TEST 3
136
137 #define RFC_1700_UDP_PROTOCOL 17
138 #define RFC_1700_TCP_PROTOCOL 6
139
140 #pragma pack(1)
141
142 typedef struct {
143 EFI_DEVICE_PATH_PROTOCOL Header;
144 EFI_GUID Guid;
145 UINT8 VendorDefinedData[1];
146 } VENDOR_DEFINED_HARDWARE_DEVICE_PATH;
147
148 typedef struct {
149 EFI_DEVICE_PATH_PROTOCOL Header;
150 EFI_GUID Guid;
151 UINT8 VendorDefinedData[1];
152 } VENDOR_DEFINED_MESSAGING_DEVICE_PATH;
153
154 typedef struct {
155 EFI_DEVICE_PATH_PROTOCOL Header;
156 EFI_GUID Guid;
157 UINT8 VendorDefinedData[1];
158 } VENDOR_DEFINED_MEDIA_DEVICE_PATH;
159
160 typedef struct {
161 EFI_DEVICE_PATH_PROTOCOL Header;
162 UINT32 Hid;
163 UINT32 Uid;
164 UINT32 Cid;
165 CHAR8 HidUidCidStr[3];
166 } ACPI_EXTENDED_HID_DEVICE_PATH_WITH_STR;
167
168 typedef struct {
169 EFI_DEVICE_PATH_PROTOCOL Header;
170 UINT16 NetworkProtocol;
171 UINT16 LoginOption;
172 UINT64 Lun;
173 UINT16 TargetPortalGroupTag;
174 CHAR8 TargetName[1];
175 } ISCSI_DEVICE_PATH_WITH_NAME;
176
177 typedef struct {
178 EFI_DEVICE_PATH_PROTOCOL Header;
179 EFI_GUID Guid;
180 UINT8 VendorDefinedData[1];
181 } VENDOR_DEVICE_PATH_WITH_DATA;
182
183 #pragma pack()
184
185 #ifdef FreeBSD /* Remove these on FreeBSD */
186
187 /**
188 Returns the size of a device path in bytes.
189
190 This function returns the size, in bytes, of the device path data structure
191 specified by DevicePath including the end of device path node.
192 If DevicePath is NULL or invalid, then 0 is returned.
193
194 @param DevicePath A pointer to a device path data structure.
195
196 @retval 0 If DevicePath is NULL or invalid.
197 @retval Others The size of a device path in bytes.
198
199 **/
200 UINTN
201 EFIAPI
202 UefiDevicePathLibGetDevicePathSize (
203 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
204 );
205
206 /**
207 Creates a new copy of an existing device path.
208
209 This function allocates space for a new copy of the device path specified by DevicePath.
210 If DevicePath is NULL, then NULL is returned. If the memory is successfully
211 allocated, then the contents of DevicePath are copied to the newly allocated
212 buffer, and a pointer to that buffer is returned. Otherwise, NULL is returned.
213 The memory for the new device path is allocated from EFI boot services memory.
214 It is the responsibility of the caller to free the memory allocated.
215
216 @param DevicePath A pointer to a device path data structure.
217
218 @retval NULL DevicePath is NULL or invalid.
219 @retval Others A pointer to the duplicated device path.
220
221 **/
222 EFI_DEVICE_PATH_PROTOCOL *
223 EFIAPI
224 UefiDevicePathLibDuplicateDevicePath (
225 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
226 );
227
228 /**
229 Creates a new device path by appending a second device path to a first device path.
230
231 This function creates a new device path by appending a copy of SecondDevicePath
232 to a copy of FirstDevicePath in a newly allocated buffer. Only the end-of-device-path
233 device node from SecondDevicePath is retained. The newly created device path is
234 returned. If FirstDevicePath is NULL, then it is ignored, and a duplicate of
235 SecondDevicePath is returned. If SecondDevicePath is NULL, then it is ignored,
236 and a duplicate of FirstDevicePath is returned. If both FirstDevicePath and
237 SecondDevicePath are NULL, then a copy of an end-of-device-path is returned.
238
239 If there is not enough memory for the newly allocated buffer, then NULL is returned.
240 The memory for the new device path is allocated from EFI boot services memory.
241 It is the responsibility of the caller to free the memory allocated.
242
243 @param FirstDevicePath A pointer to a device path data structure.
244 @param SecondDevicePath A pointer to a device path data structure.
245
246 @retval NULL If there is not enough memory for the newly allocated buffer.
247 @retval NULL If FirstDevicePath or SecondDevicePath is invalid.
248 @retval Others A pointer to the new device path if success.
249 Or a copy an end-of-device-path if both FirstDevicePath and SecondDevicePath are NULL.
250
251 **/
252 EFI_DEVICE_PATH_PROTOCOL *
253 EFIAPI
254 UefiDevicePathLibAppendDevicePath (
255 IN CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL
256 IN CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL
257 );
258
259 /**
260 Creates a new path by appending the device node to the device path.
261
262 This function creates a new device path by appending a copy of the device node
263 specified by DevicePathNode to a copy of the device path specified by DevicePath
264 in an allocated buffer. The end-of-device-path device node is moved after the
265 end of the appended device node.
266 If DevicePathNode is NULL then a copy of DevicePath is returned.
267 If DevicePath is NULL then a copy of DevicePathNode, followed by an end-of-device
268 path device node is returned.
269 If both DevicePathNode and DevicePath are NULL then a copy of an end-of-device-path
270 device node is returned.
271 If there is not enough memory to allocate space for the new device path, then
272 NULL is returned.
273 The memory is allocated from EFI boot services memory. It is the responsibility
274 of the caller to free the memory allocated.
275
276 @param DevicePath A pointer to a device path data structure.
277 @param DevicePathNode A pointer to a single device path node.
278
279 @retval NULL If there is not enough memory for the new device path.
280 @retval Others A pointer to the new device path if success.
281 A copy of DevicePathNode followed by an end-of-device-path node
282 if both FirstDevicePath and SecondDevicePath are NULL.
283 A copy of an end-of-device-path node if both FirstDevicePath
284 and SecondDevicePath are NULL.
285
286 **/
287 EFI_DEVICE_PATH_PROTOCOL *
288 EFIAPI
289 UefiDevicePathLibAppendDevicePathNode (
290 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
291 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL
292 );
293
294 /**
295 Creates a new device path by appending the specified device path instance to the specified device
296 path.
297
298 This function creates a new device path by appending a copy of the device path
299 instance specified by DevicePathInstance to a copy of the device path specified
300 by DevicePath in a allocated buffer.
301 The end-of-device-path device node is moved after the end of the appended device
302 path instance and a new end-of-device-path-instance node is inserted between.
303 If DevicePath is NULL, then a copy if DevicePathInstance is returned.
304 If DevicePathInstance is NULL, then NULL is returned.
305 If DevicePath or DevicePathInstance is invalid, then NULL is returned.
306 If there is not enough memory to allocate space for the new device path, then
307 NULL is returned.
308 The memory is allocated from EFI boot services memory. It is the responsibility
309 of the caller to free the memory allocated.
310
311 @param DevicePath A pointer to a device path data structure.
312 @param DevicePathInstance A pointer to a device path instance.
313
314 @return A pointer to the new device path.
315
316 **/
317 EFI_DEVICE_PATH_PROTOCOL *
318 EFIAPI
319 UefiDevicePathLibAppendDevicePathInstance (
320 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
321 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL
322 );
323
324 /**
325 Creates a copy of the current device path instance and returns a pointer to the next device path
326 instance.
327
328 This function creates a copy of the current device path instance. It also updates
329 DevicePath to point to the next device path instance in the device path (or NULL
330 if no more) and updates Size to hold the size of the device path instance copy.
331 If DevicePath is NULL, then NULL is returned.
332 If DevicePath points to a invalid device path, then NULL is returned.
333 If there is not enough memory to allocate space for the new device path, then
334 NULL is returned.
335 The memory is allocated from EFI boot services memory. It is the responsibility
336 of the caller to free the memory allocated.
337 If Size is NULL, then ASSERT().
338
339 @param DevicePath On input, this holds the pointer to the current
340 device path instance. On output, this holds
341 the pointer to the next device path instance
342 or NULL if there are no more device path
343 instances in the device path pointer to a
344 device path data structure.
345 @param Size On output, this holds the size of the device
346 path instance, in bytes or zero, if DevicePath
347 is NULL.
348
349 @return A pointer to the current device path instance.
350
351 **/
352 EFI_DEVICE_PATH_PROTOCOL *
353 EFIAPI
354 UefiDevicePathLibGetNextDevicePathInstance (
355 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath,
356 OUT UINTN *Size
357 );
358
359 /**
360 Creates a device node.
361
362 This function creates a new device node in a newly allocated buffer of size
363 NodeLength and initializes the device path node header with NodeType and NodeSubType.
364 The new device path node is returned.
365 If NodeLength is smaller than a device path header, then NULL is returned.
366 If there is not enough memory to allocate space for the new device path, then
367 NULL is returned.
368 The memory is allocated from EFI boot services memory. It is the responsibility
369 of the caller to free the memory allocated.
370
371 @param NodeType The device node type for the new device node.
372 @param NodeSubType The device node sub-type for the new device node.
373 @param NodeLength The length of the new device node.
374
375 @return The new device path.
376
377 **/
378 EFI_DEVICE_PATH_PROTOCOL *
379 EFIAPI
380 UefiDevicePathLibCreateDeviceNode (
381 IN UINT8 NodeType,
382 IN UINT8 NodeSubType,
383 IN UINT16 NodeLength
384 );
385
386 /**
387 Determines if a device path is single or multi-instance.
388
389 This function returns TRUE if the device path specified by DevicePath is
390 multi-instance.
391 Otherwise, FALSE is returned.
392 If DevicePath is NULL or invalid, then FALSE is returned.
393
394 @param DevicePath A pointer to a device path data structure.
395
396 @retval TRUE DevicePath is multi-instance.
397 @retval FALSE DevicePath is not multi-instance, or DevicePath
398 is NULL or invalid.
399
400 **/
401 BOOLEAN
402 EFIAPI
403 UefiDevicePathLibIsDevicePathMultiInstance (
404 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
405 );
406
407
408 /**
409 Converts a device path to its text representation.
410
411 @param DevicePath A Pointer to the device to be converted.
412 @param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation
413 of the display node is used, where applicable. If DisplayOnly
414 is FALSE, then the longer text representation of the display node
415 is used.
416 @param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text
417 representation for a device node can be used, where applicable.
418
419 @return A pointer to the allocated text representation of the device path or
420 NULL if DeviceNode is NULL or there was insufficient memory.
421
422 **/
423 CHAR16 *
424 EFIAPI
425 UefiDevicePathLibConvertDevicePathToText (
426 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,
427 IN BOOLEAN DisplayOnly,
428 IN BOOLEAN AllowShortcuts
429 );
430
431 /**
432 Converts a device node to its string representation.
433
434 @param DeviceNode A Pointer to the device node to be converted.
435 @param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation
436 of the display node is used, where applicable. If DisplayOnly
437 is FALSE, then the longer text representation of the display node
438 is used.
439 @param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text
440 representation for a device node can be used, where applicable.
441
442 @return A pointer to the allocated text representation of the device node or NULL if DeviceNode
443 is NULL or there was insufficient memory.
444
445 **/
446 CHAR16 *
447 EFIAPI
448 UefiDevicePathLibConvertDeviceNodeToText (
449 IN CONST EFI_DEVICE_PATH_PROTOCOL *DeviceNode,
450 IN BOOLEAN DisplayOnly,
451 IN BOOLEAN AllowShortcuts
452 );
453
454 /**
455 Convert text to the binary representation of a device node.
456
457 @param TextDeviceNode TextDeviceNode points to the text representation of a device
458 node. Conversion starts with the first character and continues
459 until the first non-device node character.
460
461 @return A pointer to the EFI device node or NULL if TextDeviceNode is NULL or there was
462 insufficient memory or text unsupported.
463
464 **/
465 EFI_DEVICE_PATH_PROTOCOL *
466 EFIAPI
467 UefiDevicePathLibConvertTextToDeviceNode (
468 IN CONST CHAR16 *TextDeviceNode
469 );
470
471 /**
472 Convert text to the binary representation of a device path.
473
474
475 @param TextDevicePath TextDevicePath points to the text representation of a device
476 path. Conversion starts with the first character and continues
477 until the first non-device node character.
478
479 @return A pointer to the allocated device path or NULL if TextDeviceNode is NULL or
480 there was insufficient memory.
481
482 **/
483 EFI_DEVICE_PATH_PROTOCOL *
484 EFIAPI
485 UefiDevicePathLibConvertTextToDevicePath (
486 IN CONST CHAR16 *TextDevicePath
487 );
488 #else
489
490 /*
491 * Small FreeBSD shim layer. Fast and lose hacks to make this code work with FreeBSD.
492 */
493
494 #include <ctype.h>
495
496 #define _PCD_GET_MODE_32_PcdMaximumDevicePathNodeCount 1000
497 #define MAX_UINTN UINTPTR_MAX
498
499 #define AllocatePool(x) malloc(x)
500 #define AllocateZeroPool(x) calloc(1,x)
501 #define AsciiStrLen(s) strlen(s)
502 #define CopyGuid(dst, src) memcpy(dst, src, sizeof(uuid_t))
503 #define CopyMem(d, s, l) memcpy(d, s, l)
504 #define FreePool(x) free(x)
505 #define LShiftU64(x, s) ((x) << s)
506 #define ReadUnaligned64(x) le64dec(x)
507 #define ReallocatePool(old, new, ptr) realloc(ptr, new)
508 /*
509 * Quirky StrCmp returns 0 if equal, 1 if not. This is what the code
510 * expects, though that expectation is likely a bug (it casts the
511 * return value. EDK2's StrCmp returns values just like C's strcmp,
512 * but the parse code casts this to an UINTN, which is bogus. This
513 * definition papers over that bogusness to do the right thing. If
514 * iSCSI protocol string processing is ever fixed, we can remove this
515 * bletcherous kludge.
516 */
517 #define StrCmp(a, b) (strcmp(a, b) != 0)
518 #define StrCpyS(d, l, s) strcpy(d, s)
519 #define StrHexToUint64(x) strtoll(x, NULL, 16)
520 #define StrHexToUintn(x) strtoll(x, NULL, 16)
521 #define StrLen(x) strlen(x)
522 #define StrSize(x) (strlen(x) + 1)
523 #define StrnCatS(d, l, s, len) strncat(d, s, len)
524 #define StrnCmp(a, b, n) strncmp(a, b, n)
525 #define StrnLenS(str, max) strlen(str)
526 #define Strtoi(x) strtol(x, NULL, 0)
527 #define Strtoi64(x, y) *(long long *)y = strtoll(x, NULL, 0)
528 #define SwapBytes64(u64) bswap64(u64)
529 #define UnicodeStrToAsciiStrS(src, dest, len) strlcpy(dest, src, len)
530 #define ZeroMem(p,l) memset(p, 0, l)
531
532 #undef ASSERT
533 #define ASSERT(x)
534
535 /*
536 * Define AllocateCopyPool and others so that we "forget" about the
537 * previous non-static deifnition since we want these to be static
538 * inlines.
539 */
540 #define AllocateCopyPool AllocateCopyPoolFreeBSD
541 #define CompareGuid CompareGuidFreeBSD
542 #define StrHexToBytes StrHexToBytesFreeBSD
543 #define StrToGuid StrToGuidFreeBSD
544 #define WriteUnaligned64 WriteUnaligned64FreeBSD
545
546 static inline void *
AllocateCopyPool(size_t l,const void * p)547 AllocateCopyPool(size_t l, const void *p)
548 {
549 void *rv;
550
551 rv = malloc(l);
552 if (rv == NULL)
553 return NULL;
554 memcpy(rv, p, l);
555 return (rv);
556 }
557
558 static inline BOOLEAN
CompareGuid(const GUID * g1,const GUID * g2)559 CompareGuid (const GUID *g1, const GUID *g2)
560 {
561 uint32_t ignored_status;
562
563 return (uuid_compare((const uuid_t *)g1, (const uuid_t *)g2,
564 &ignored_status) == 0);
565 }
566
567 static inline int
StrHexToBytes(const char * str,size_t len,uint8_t * buf,size_t buflen)568 StrHexToBytes(const char *str, size_t len, uint8_t *buf, size_t buflen)
569 {
570 size_t i;
571 char hex[3];
572
573 /*
574 * Sanity check preconditions.
575 */
576 if (buflen != len / 2 || (len % 2) == 1)
577 return 1;
578 for (i = 0; i < len; i += 2) {
579 if (!isxdigit(str[i]) || !isxdigit(str[i + 1]))
580 return 1;
581 hex[0] = str[i];
582 hex[1] = str[i + 1];
583 hex[2] = '\0';
584 buf[i / 2] = strtol(hex, NULL, 16);
585 }
586 return 0;
587 }
588
589 static inline void
StrToGuid(const char * str,GUID * guid)590 StrToGuid(const char *str, GUID *guid)
591 {
592 uint32_t status;
593
594 uuid_from_string(str, (uuid_t *)guid, &status);
595 }
596
597 static inline void
WriteUnaligned64(void * ptr,uint64_t val)598 WriteUnaligned64(void *ptr, uint64_t val)
599 {
600 memcpy(ptr, &val, sizeof(val));
601 }
602
603 /*
604 * Hack to allow converting %g to %s in printfs. Hack because
605 * it's single entry, uses a static buffer, etc. Sufficient for
606 * the day for this file though. IF you ever have to convert
607 * two %g's in one format, punt. Did I mention this was super lame.
608 * Not to mention it's name.... Also, the error GUID is horrific.
609 */
610 static inline const char *
guid_str(const GUID * g)611 guid_str(const GUID *g)
612 {
613 static char buf[36 + 1];
614 char *str = NULL;
615 int32_t ignored_status;
616
617 uuid_to_string((const uuid_t *)g, &str, &ignored_status);
618 if (str != NULL)
619 strlcpy(buf, str, sizeof(buf));
620 else
621 strlcpy(buf, "groot-cannot-decode-guid-groot-smash",
622 sizeof(buf)); /* ^^^^^^^ 36 characters ^^^^^^^ */
623 free(str);
624 return buf;
625 }
626 #define G(x) guid_str((const GUID *)(const void *)x)
627 #endif
628
629 #undef GLOBAL_REMOVE_IF_UNREFERENCED
630 #define GLOBAL_REMOVE_IF_UNREFERENCED static
631
632 #endif
633