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 * $FreeBSD: head/lib/libefivar/uefi-dplib.h 343755 2019-02-04 21:28:25Z imp $
26 */
27
28 /*
29 * Taken from MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.h
30 * hash a11928f3310518ab1c6fd34e8d0fdbb72de9602c 2017-Mar-01
31 */
32
33 /** @file
34 Definition for Device Path library.
35
36 Copyright (c) 2013 - 2015, Intel Corporation. All rights reserved.<BR>
37 This program and the accompanying materials
38 are licensed and made available under the terms and conditions of the BSD License
39 which accompanies this distribution. The full text of the license may be found at
40 http://opensource.org/licenses/bsd-license.php
41
42 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
43 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
44
45 **/
46
47 #ifndef _UEFI_DEVICE_PATH_LIB_H_
48 #define _UEFI_DEVICE_PATH_LIB_H_
49 #include <Uefi.h>
50 #include <Protocol/DevicePathUtilities.h>
51 #include <Protocol/DebugPort.h>
52 #include <Protocol/DevicePathToText.h>
53 #include <Protocol/DevicePathFromText.h>
54 #include <Guid/PcAnsi.h>
55 #include <Library/DebugLib.h>
56 #include <Library/PrintLib.h>
57 #include <Library/BaseLib.h>
58 #include <Library/BaseMemoryLib.h>
59 #include <Library/MemoryAllocationLib.h>
60 #include <Library/UefiBootServicesTableLib.h>
61 #include <Library/DevicePathLib.h>
62 #include <Library/PcdLib.h>
63 #include <IndustryStandard/Bluetooth.h>
64
65 #define IS_COMMA(a) ((a) == ',')
66 #define IS_HYPHEN(a) ((a) == '-')
67 #define IS_DOT(a) ((a) == '.')
68 #define IS_LEFT_PARENTH(a) ((a) == '(')
69 #define IS_RIGHT_PARENTH(a) ((a) == ')')
70 #define IS_SLASH(a) ((a) == '/')
71 #define IS_NULL(a) ((a) == '\0')
72
73
74 //
75 // Private Data structure
76 //
77 typedef struct {
78 char *Str;
79 UINTN Count;
80 UINTN Capacity;
81 } POOL_PRINT;
82
83 typedef
84 EFI_DEVICE_PATH_PROTOCOL *
85 (*DEVICE_PATH_FROM_TEXT) (
86 IN char *Str
87 );
88
89 typedef
90 VOID
91 (*DEVICE_PATH_TO_TEXT) (
92 IN OUT POOL_PRINT *Str,
93 IN VOID *DevicePath,
94 IN BOOLEAN DisplayOnly,
95 IN BOOLEAN AllowShortcuts
96 );
97
98 typedef struct {
99 UINT8 Type;
100 UINT8 SubType;
101 DEVICE_PATH_TO_TEXT Function;
102 } DEVICE_PATH_TO_TEXT_TABLE;
103
104 typedef struct {
105 UINT8 Type;
106 const char *Text;
107 } DEVICE_PATH_TO_TEXT_GENERIC_TABLE;
108
109 typedef struct {
110 const char *DevicePathNodeText;
111 DEVICE_PATH_FROM_TEXT Function;
112 } DEVICE_PATH_FROM_TEXT_TABLE;
113
114 typedef struct {
115 BOOLEAN ClassExist;
116 UINT8 Class;
117 BOOLEAN SubClassExist;
118 UINT8 SubClass;
119 } USB_CLASS_TEXT;
120
121 #define USB_CLASS_AUDIO 1
122 #define USB_CLASS_CDCCONTROL 2
123 #define USB_CLASS_HID 3
124 #define USB_CLASS_IMAGE 6
125 #define USB_CLASS_PRINTER 7
126 #define USB_CLASS_MASS_STORAGE 8
127 #define USB_CLASS_HUB 9
128 #define USB_CLASS_CDCDATA 10
129 #define USB_CLASS_SMART_CARD 11
130 #define USB_CLASS_VIDEO 14
131 #define USB_CLASS_DIAGNOSTIC 220
132 #define USB_CLASS_WIRELESS 224
133
134 #define USB_CLASS_RESERVE 254
135 #define USB_SUBCLASS_FW_UPDATE 1
136 #define USB_SUBCLASS_IRDA_BRIDGE 2
137 #define USB_SUBCLASS_TEST 3
138
139 #define RFC_1700_UDP_PROTOCOL 17
140 #define RFC_1700_TCP_PROTOCOL 6
141
142 #pragma pack(1)
143
144 typedef struct {
145 EFI_DEVICE_PATH_PROTOCOL Header;
146 EFI_GUID Guid;
147 UINT8 VendorDefinedData[1];
148 } VENDOR_DEFINED_HARDWARE_DEVICE_PATH;
149
150 typedef struct {
151 EFI_DEVICE_PATH_PROTOCOL Header;
152 EFI_GUID Guid;
153 UINT8 VendorDefinedData[1];
154 } VENDOR_DEFINED_MESSAGING_DEVICE_PATH;
155
156 typedef struct {
157 EFI_DEVICE_PATH_PROTOCOL Header;
158 EFI_GUID Guid;
159 UINT8 VendorDefinedData[1];
160 } VENDOR_DEFINED_MEDIA_DEVICE_PATH;
161
162 typedef struct {
163 EFI_DEVICE_PATH_PROTOCOL Header;
164 UINT32 Hid;
165 UINT32 Uid;
166 UINT32 Cid;
167 CHAR8 HidUidCidStr[3];
168 } ACPI_EXTENDED_HID_DEVICE_PATH_WITH_STR;
169
170 typedef struct {
171 EFI_DEVICE_PATH_PROTOCOL Header;
172 UINT16 NetworkProtocol;
173 UINT16 LoginOption;
174 UINT64 Lun;
175 UINT16 TargetPortalGroupTag;
176 CHAR8 TargetName[1];
177 } ISCSI_DEVICE_PATH_WITH_NAME;
178
179 typedef struct {
180 EFI_DEVICE_PATH_PROTOCOL Header;
181 EFI_GUID Guid;
182 UINT8 VendorDefinedData[1];
183 } VENDOR_DEVICE_PATH_WITH_DATA;
184
185 #pragma pack()
186
187 #ifdef FreeBSD /* Remove these on FreeBSD */
188
189 /**
190 Returns the size of a device path in bytes.
191
192 This function returns the size, in bytes, of the device path data structure
193 specified by DevicePath including the end of device path node.
194 If DevicePath is NULL or invalid, then 0 is returned.
195
196 @param DevicePath A pointer to a device path data structure.
197
198 @retval 0 If DevicePath is NULL or invalid.
199 @retval Others The size of a device path in bytes.
200
201 **/
202 UINTN
203 EFIAPI
204 UefiDevicePathLibGetDevicePathSize (
205 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
206 );
207
208 /**
209 Creates a new copy of an existing device path.
210
211 This function allocates space for a new copy of the device path specified by DevicePath.
212 If DevicePath is NULL, then NULL is returned. If the memory is successfully
213 allocated, then the contents of DevicePath are copied to the newly allocated
214 buffer, and a pointer to that buffer is returned. Otherwise, NULL is returned.
215 The memory for the new device path is allocated from EFI boot services memory.
216 It is the responsibility of the caller to free the memory allocated.
217
218 @param DevicePath A pointer to a device path data structure.
219
220 @retval NULL DevicePath is NULL or invalid.
221 @retval Others A pointer to the duplicated device path.
222
223 **/
224 EFI_DEVICE_PATH_PROTOCOL *
225 EFIAPI
226 UefiDevicePathLibDuplicateDevicePath (
227 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
228 );
229
230 /**
231 Creates a new device path by appending a second device path to a first device path.
232
233 This function creates a new device path by appending a copy of SecondDevicePath
234 to a copy of FirstDevicePath in a newly allocated buffer. Only the end-of-device-path
235 device node from SecondDevicePath is retained. The newly created device path is
236 returned. If FirstDevicePath is NULL, then it is ignored, and a duplicate of
237 SecondDevicePath is returned. If SecondDevicePath is NULL, then it is ignored,
238 and a duplicate of FirstDevicePath is returned. If both FirstDevicePath and
239 SecondDevicePath are NULL, then a copy of an end-of-device-path is returned.
240
241 If there is not enough memory for the newly allocated buffer, then NULL is returned.
242 The memory for the new device path is allocated from EFI boot services memory.
243 It is the responsibility of the caller to free the memory allocated.
244
245 @param FirstDevicePath A pointer to a device path data structure.
246 @param SecondDevicePath A pointer to a device path data structure.
247
248 @retval NULL If there is not enough memory for the newly allocated buffer.
249 @retval NULL If FirstDevicePath or SecondDevicePath is invalid.
250 @retval Others A pointer to the new device path if success.
251 Or a copy an end-of-device-path if both FirstDevicePath and SecondDevicePath are NULL.
252
253 **/
254 EFI_DEVICE_PATH_PROTOCOL *
255 EFIAPI
256 UefiDevicePathLibAppendDevicePath (
257 IN CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL
258 IN CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL
259 );
260
261 /**
262 Creates a new path by appending the device node to the device path.
263
264 This function creates a new device path by appending a copy of the device node
265 specified by DevicePathNode to a copy of the device path specified by DevicePath
266 in an allocated buffer. The end-of-device-path device node is moved after the
267 end of the appended device node.
268 If DevicePathNode is NULL then a copy of DevicePath is returned.
269 If DevicePath is NULL then a copy of DevicePathNode, followed by an end-of-device
270 path device node is returned.
271 If both DevicePathNode and DevicePath are NULL then a copy of an end-of-device-path
272 device node is returned.
273 If there is not enough memory to allocate space for the new device path, then
274 NULL is returned.
275 The memory is allocated from EFI boot services memory. It is the responsibility
276 of the caller to free the memory allocated.
277
278 @param DevicePath A pointer to a device path data structure.
279 @param DevicePathNode A pointer to a single device path node.
280
281 @retval NULL If there is not enough memory for the new device path.
282 @retval Others A pointer to the new device path if success.
283 A copy of DevicePathNode followed by an end-of-device-path node
284 if both FirstDevicePath and SecondDevicePath are NULL.
285 A copy of an end-of-device-path node if both FirstDevicePath
286 and SecondDevicePath are NULL.
287
288 **/
289 EFI_DEVICE_PATH_PROTOCOL *
290 EFIAPI
291 UefiDevicePathLibAppendDevicePathNode (
292 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
293 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL
294 );
295
296 /**
297 Creates a new device path by appending the specified device path instance to the specified device
298 path.
299
300 This function creates a new device path by appending a copy of the device path
301 instance specified by DevicePathInstance to a copy of the device path specified
302 by DevicePath in a allocated buffer.
303 The end-of-device-path device node is moved after the end of the appended device
304 path instance and a new end-of-device-path-instance node is inserted between.
305 If DevicePath is NULL, then a copy if DevicePathInstance is returned.
306 If DevicePathInstance is NULL, then NULL is returned.
307 If DevicePath or DevicePathInstance is invalid, then NULL is returned.
308 If there is not enough memory to allocate space for the new device path, then
309 NULL is returned.
310 The memory is allocated from EFI boot services memory. It is the responsibility
311 of the caller to free the memory allocated.
312
313 @param DevicePath A pointer to a device path data structure.
314 @param DevicePathInstance A pointer to a device path instance.
315
316 @return A pointer to the new device path.
317
318 **/
319 EFI_DEVICE_PATH_PROTOCOL *
320 EFIAPI
321 UefiDevicePathLibAppendDevicePathInstance (
322 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL
323 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL
324 );
325
326 /**
327 Creates a copy of the current device path instance and returns a pointer to the next device path
328 instance.
329
330 This function creates a copy of the current device path instance. It also updates
331 DevicePath to point to the next device path instance in the device path (or NULL
332 if no more) and updates Size to hold the size of the device path instance copy.
333 If DevicePath is NULL, then NULL is returned.
334 If DevicePath points to a invalid device path, then NULL is returned.
335 If there is not enough memory to allocate space for the new device path, then
336 NULL is returned.
337 The memory is allocated from EFI boot services memory. It is the responsibility
338 of the caller to free the memory allocated.
339 If Size is NULL, then ASSERT().
340
341 @param DevicePath On input, this holds the pointer to the current
342 device path instance. On output, this holds
343 the pointer to the next device path instance
344 or NULL if there are no more device path
345 instances in the device path pointer to a
346 device path data structure.
347 @param Size On output, this holds the size of the device
348 path instance, in bytes or zero, if DevicePath
349 is NULL.
350
351 @return A pointer to the current device path instance.
352
353 **/
354 EFI_DEVICE_PATH_PROTOCOL *
355 EFIAPI
356 UefiDevicePathLibGetNextDevicePathInstance (
357 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath,
358 OUT UINTN *Size
359 );
360
361 /**
362 Creates a device node.
363
364 This function creates a new device node in a newly allocated buffer of size
365 NodeLength and initializes the device path node header with NodeType and NodeSubType.
366 The new device path node is returned.
367 If NodeLength is smaller than a device path header, then NULL is returned.
368 If there is not enough memory to allocate space for the new device path, then
369 NULL is returned.
370 The memory is allocated from EFI boot services memory. It is the responsibility
371 of the caller to free the memory allocated.
372
373 @param NodeType The device node type for the new device node.
374 @param NodeSubType The device node sub-type for the new device node.
375 @param NodeLength The length of the new device node.
376
377 @return The new device path.
378
379 **/
380 EFI_DEVICE_PATH_PROTOCOL *
381 EFIAPI
382 UefiDevicePathLibCreateDeviceNode (
383 IN UINT8 NodeType,
384 IN UINT8 NodeSubType,
385 IN UINT16 NodeLength
386 );
387
388 /**
389 Determines if a device path is single or multi-instance.
390
391 This function returns TRUE if the device path specified by DevicePath is
392 multi-instance.
393 Otherwise, FALSE is returned.
394 If DevicePath is NULL or invalid, then FALSE is returned.
395
396 @param DevicePath A pointer to a device path data structure.
397
398 @retval TRUE DevicePath is multi-instance.
399 @retval FALSE DevicePath is not multi-instance, or DevicePath
400 is NULL or invalid.
401
402 **/
403 BOOLEAN
404 EFIAPI
405 UefiDevicePathLibIsDevicePathMultiInstance (
406 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
407 );
408
409
410 /**
411 Converts a device path to its text representation.
412
413 @param DevicePath A Pointer to the device to be converted.
414 @param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation
415 of the display node is used, where applicable. If DisplayOnly
416 is FALSE, then the longer text representation of the display node
417 is used.
418 @param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text
419 representation for a device node can be used, where applicable.
420
421 @return A pointer to the allocated text representation of the device path or
422 NULL if DeviceNode is NULL or there was insufficient memory.
423
424 **/
425 CHAR16 *
426 EFIAPI
427 UefiDevicePathLibConvertDevicePathToText (
428 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,
429 IN BOOLEAN DisplayOnly,
430 IN BOOLEAN AllowShortcuts
431 );
432
433 /**
434 Converts a device node to its string representation.
435
436 @param DeviceNode A Pointer to the device node to be converted.
437 @param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation
438 of the display node is used, where applicable. If DisplayOnly
439 is FALSE, then the longer text representation of the display node
440 is used.
441 @param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text
442 representation for a device node can be used, where applicable.
443
444 @return A pointer to the allocated text representation of the device node or NULL if DeviceNode
445 is NULL or there was insufficient memory.
446
447 **/
448 CHAR16 *
449 EFIAPI
450 UefiDevicePathLibConvertDeviceNodeToText (
451 IN CONST EFI_DEVICE_PATH_PROTOCOL *DeviceNode,
452 IN BOOLEAN DisplayOnly,
453 IN BOOLEAN AllowShortcuts
454 );
455
456 /**
457 Convert text to the binary representation of a device node.
458
459 @param TextDeviceNode TextDeviceNode points to the text representation of a device
460 node. Conversion starts with the first character and continues
461 until the first non-device node character.
462
463 @return A pointer to the EFI device node or NULL if TextDeviceNode is NULL or there was
464 insufficient memory or text unsupported.
465
466 **/
467 EFI_DEVICE_PATH_PROTOCOL *
468 EFIAPI
469 UefiDevicePathLibConvertTextToDeviceNode (
470 IN CONST CHAR16 *TextDeviceNode
471 );
472
473 /**
474 Convert text to the binary representation of a device path.
475
476
477 @param TextDevicePath TextDevicePath points to the text representation of a device
478 path. Conversion starts with the first character and continues
479 until the first non-device node character.
480
481 @return A pointer to the allocated device path or NULL if TextDeviceNode is NULL or
482 there was insufficient memory.
483
484 **/
485 EFI_DEVICE_PATH_PROTOCOL *
486 EFIAPI
487 UefiDevicePathLibConvertTextToDevicePath (
488 IN CONST CHAR16 *TextDevicePath
489 );
490 #else
491
492 /*
493 * Small FreeBSD shim layer. Fast and lose hacks to make this code work with FreeBSD.
494 */
495
496 #include <ctype.h>
497
498 #define _PCD_GET_MODE_32_PcdMaximumDevicePathNodeCount 1000
499 #define MAX_UINTN UINTPTR_MAX
500
501 #define AllocatePool(x) malloc(x)
502 #define AllocateZeroPool(x) calloc(1,x)
503 #define AsciiStrLen(s) strlen(s)
504 #define CopyGuid(dst, src) memcpy(dst, src, sizeof(uuid_t))
505 #define CopyMem(d, s, l) memcpy(d, s, l)
506 #define FreePool(x) free(x)
507 #define LShiftU64(x, s) ((x) << s)
508 #define ReadUnaligned64(x) le64dec(x)
509 #define ReallocatePool(old, new, ptr) realloc(ptr, new)
510 /*
511 * Quirky StrCmp returns 0 if equal, 1 if not. This is what the code
512 * expects, though that expectation is likely a bug (it casts the
513 * return value. EDK2's StrCmp returns values just like C's strcmp,
514 * but the parse code casts this to an UINTN, which is bogus. This
515 * definition papers over that bogusness to do the right thing. If
516 * iSCSI protocol string processing is ever fixed, we can remove this
517 * bletcherous kludge.
518 */
519 #define StrCmp(a, b) (strcmp(a, b) != 0)
520 #define StrCpyS(d, l, s) strcpy(d, s)
521 #define StrHexToUint64(x) strtoll(x, NULL, 16)
522 #define StrHexToUintn(x) strtoll(x, NULL, 16)
523 #define StrLen(x) strlen(x)
524 #define StrSize(x) (strlen(x) + 1)
525 #define StrnCatS(d, l, s, len) strncat(d, s, len)
526 #define StrnCmp(a, b, n) strncmp(a, b, n)
527 #define StrnLenS(str, max) strlen(str)
528 /*
529 * NOTE: despite naming, next two functions, as implemented in upstream,
530 * actually return unsigned results
531 */
532 #define Strtoi(x) strtoul(x, NULL, 0)
533 #define Strtoi64(x, y) *(UINT64 *)y = strtoull(x, NULL, 0)
534 #define SwapBytes64(u64) bswap64(u64)
535 #define UnicodeStrToAsciiStrS(src, dest, len) strlcpy(dest, src, len)
536 #define ZeroMem(p,l) memset(p, 0, l)
537
538 #undef ASSERT
539 #define ASSERT(x)
540
541 /*
542 * Define AllocateCopyPool and others so that we "forget" about the
543 * previous non-static deifnition since we want these to be static
544 * inlines.
545 */
546 #define AllocateCopyPool AllocateCopyPoolFreeBSD
547 #define CompareGuid CompareGuidFreeBSD
548 #define StrHexToBytes StrHexToBytesFreeBSD
549 #define StrToGuid StrToGuidFreeBSD
550 #define WriteUnaligned64 WriteUnaligned64FreeBSD
551
552 static inline void *
AllocateCopyPool(size_t l,const void * p)553 AllocateCopyPool(size_t l, const void *p)
554 {
555 void *rv;
556
557 rv = malloc(l);
558 if (rv == NULL)
559 return NULL;
560 memcpy(rv, p, l);
561 return (rv);
562 }
563
564 static inline BOOLEAN
CompareGuid(const GUID * g1,const GUID * g2)565 CompareGuid (const GUID *g1, const GUID *g2)
566 {
567 uint32_t ignored_status;
568
569 return (uuid_compare((const uuid_t *)g1, (const uuid_t *)g2,
570 &ignored_status) == 0);
571 }
572
573 static inline int
StrHexToBytes(const char * str,size_t len,uint8_t * buf,size_t buflen)574 StrHexToBytes(const char *str, size_t len, uint8_t *buf, size_t buflen)
575 {
576 size_t i;
577 char hex[3];
578
579 /*
580 * Sanity check preconditions.
581 */
582 if (buflen != len / 2 || (len % 2) == 1)
583 return 1;
584 for (i = 0; i < len; i += 2) {
585 if (!isxdigit(str[i]) || !isxdigit(str[i + 1]))
586 return 1;
587 hex[0] = str[i];
588 hex[1] = str[i + 1];
589 hex[2] = '\0';
590 buf[i / 2] = strtol(hex, NULL, 16);
591 }
592 return 0;
593 }
594
595 static inline void
StrToGuid(const char * str,GUID * guid)596 StrToGuid(const char *str, GUID *guid)
597 {
598 uint32_t status;
599
600 uuid_from_string(str, (uuid_t *)guid, &status);
601 }
602
603 static inline void
WriteUnaligned64(void * ptr,uint64_t val)604 WriteUnaligned64(void *ptr, uint64_t val)
605 {
606 memcpy(ptr, &val, sizeof(val));
607 }
608
609 /*
610 * Hack to allow converting %g to %s in printfs. Hack because
611 * it's single entry, uses a static buffer, etc. Sufficient for
612 * the day for this file though. IF you ever have to convert
613 * two %g's in one format, punt. Did I mention this was super lame.
614 * Not to mention it's name.... Also, the error GUID is horrific.
615 */
616 static inline const char *
guid_str(const GUID * g)617 guid_str(const GUID *g)
618 {
619 static char buf[36 + 1];
620 char *str = NULL;
621 int32_t ignored_status;
622
623 uuid_to_string((const uuid_t *)g, &str, &ignored_status);
624 if (str != NULL)
625 strlcpy(buf, str, sizeof(buf));
626 else
627 strlcpy(buf, "groot-cannot-decode-guid-groot-smash",
628 sizeof(buf)); /* ^^^^^^^ 36 characters ^^^^^^^ */
629 free(str);
630 return buf;
631 }
632 #define G(x) guid_str((const GUID *)(const void *)x)
633 #endif
634
635 #undef GLOBAL_REMOVE_IF_UNREFERENCED
636 #define GLOBAL_REMOVE_IF_UNREFERENCED static
637
638 #endif
639