1 /*- 2 * Copyright (c) 2017 Netflix, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer 10 * in this position and unchanged. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 /* 30 * Taken from MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.h 31 * hash a11928f3310518ab1c6fd34e8d0fdbb72de9602c 2017-Mar-01 32 */ 33 34 /** @file 35 Definition for Device Path library. 36 37 Copyright (c) 2013 - 2015, Intel Corporation. All rights reserved.<BR> 38 This program and the accompanying materials 39 are licensed and made available under the terms and conditions of the BSD License 40 which accompanies this distribution. The full text of the license may be found at 41 http://opensource.org/licenses/bsd-license.php 42 43 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 44 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 45 46 **/ 47 48 #ifndef _UEFI_DEVICE_PATH_LIB_H_ 49 #define _UEFI_DEVICE_PATH_LIB_H_ 50 #include <Uefi.h> 51 #include <Protocol/DevicePathUtilities.h> 52 #include <Protocol/DebugPort.h> 53 #include <Protocol/DevicePathToText.h> 54 #include <Protocol/DevicePathFromText.h> 55 #include <Guid/PcAnsi.h> 56 #include <Library/DebugLib.h> 57 #include <Library/PrintLib.h> 58 #include <Library/BaseLib.h> 59 #include <Library/BaseMemoryLib.h> 60 #include <Library/MemoryAllocationLib.h> 61 #include <Library/UefiBootServicesTableLib.h> 62 #include <Library/DevicePathLib.h> 63 #include <Library/PcdLib.h> 64 #include <IndustryStandard/Bluetooth.h> 65 66 #define IS_COMMA(a) ((a) == ',') 67 #define IS_HYPHEN(a) ((a) == '-') 68 #define IS_DOT(a) ((a) == '.') 69 #define IS_LEFT_PARENTH(a) ((a) == '(') 70 #define IS_RIGHT_PARENTH(a) ((a) == ')') 71 #define IS_SLASH(a) ((a) == '/') 72 #define IS_NULL(a) ((a) == '\0') 73 74 75 // 76 // Private Data structure 77 // 78 typedef struct { 79 char *Str; 80 UINTN Count; 81 UINTN Capacity; 82 } POOL_PRINT; 83 84 typedef 85 EFI_DEVICE_PATH_PROTOCOL * 86 (*DEVICE_PATH_FROM_TEXT) ( 87 IN char *Str 88 ); 89 90 typedef 91 VOID 92 (*DEVICE_PATH_TO_TEXT) ( 93 IN OUT POOL_PRINT *Str, 94 IN VOID *DevicePath, 95 IN BOOLEAN DisplayOnly, 96 IN BOOLEAN AllowShortcuts 97 ); 98 99 typedef struct { 100 UINT8 Type; 101 UINT8 SubType; 102 DEVICE_PATH_TO_TEXT Function; 103 } DEVICE_PATH_TO_TEXT_TABLE; 104 105 typedef struct { 106 UINT8 Type; 107 const char *Text; 108 } DEVICE_PATH_TO_TEXT_GENERIC_TABLE; 109 110 typedef struct { 111 const char *DevicePathNodeText; 112 DEVICE_PATH_FROM_TEXT Function; 113 } DEVICE_PATH_FROM_TEXT_TABLE; 114 115 typedef struct { 116 BOOLEAN ClassExist; 117 UINT8 Class; 118 BOOLEAN SubClassExist; 119 UINT8 SubClass; 120 } USB_CLASS_TEXT; 121 122 #define USB_CLASS_AUDIO 1 123 #define USB_CLASS_CDCCONTROL 2 124 #define USB_CLASS_HID 3 125 #define USB_CLASS_IMAGE 6 126 #define USB_CLASS_PRINTER 7 127 #define USB_CLASS_MASS_STORAGE 8 128 #define USB_CLASS_HUB 9 129 #define USB_CLASS_CDCDATA 10 130 #define USB_CLASS_SMART_CARD 11 131 #define USB_CLASS_VIDEO 14 132 #define USB_CLASS_DIAGNOSTIC 220 133 #define USB_CLASS_WIRELESS 224 134 135 #define USB_CLASS_RESERVE 254 136 #define USB_SUBCLASS_FW_UPDATE 1 137 #define USB_SUBCLASS_IRDA_BRIDGE 2 138 #define USB_SUBCLASS_TEST 3 139 140 #define RFC_1700_UDP_PROTOCOL 17 141 #define RFC_1700_TCP_PROTOCOL 6 142 143 #pragma pack(1) 144 145 typedef struct { 146 EFI_DEVICE_PATH_PROTOCOL Header; 147 EFI_GUID Guid; 148 UINT8 VendorDefinedData[1]; 149 } VENDOR_DEFINED_HARDWARE_DEVICE_PATH; 150 151 typedef struct { 152 EFI_DEVICE_PATH_PROTOCOL Header; 153 EFI_GUID Guid; 154 UINT8 VendorDefinedData[1]; 155 } VENDOR_DEFINED_MESSAGING_DEVICE_PATH; 156 157 typedef struct { 158 EFI_DEVICE_PATH_PROTOCOL Header; 159 EFI_GUID Guid; 160 UINT8 VendorDefinedData[1]; 161 } VENDOR_DEFINED_MEDIA_DEVICE_PATH; 162 163 typedef struct { 164 EFI_DEVICE_PATH_PROTOCOL Header; 165 UINT32 Hid; 166 UINT32 Uid; 167 UINT32 Cid; 168 CHAR8 HidUidCidStr[3]; 169 } ACPI_EXTENDED_HID_DEVICE_PATH_WITH_STR; 170 171 typedef struct { 172 EFI_DEVICE_PATH_PROTOCOL Header; 173 UINT16 NetworkProtocol; 174 UINT16 LoginOption; 175 UINT64 Lun; 176 UINT16 TargetPortalGroupTag; 177 CHAR8 TargetName[1]; 178 } ISCSI_DEVICE_PATH_WITH_NAME; 179 180 typedef struct { 181 EFI_DEVICE_PATH_PROTOCOL Header; 182 EFI_GUID Guid; 183 UINT8 VendorDefinedData[1]; 184 } VENDOR_DEVICE_PATH_WITH_DATA; 185 186 #pragma pack() 187 188 #ifdef FreeBSD /* Remove these on FreeBSD */ 189 190 /** 191 Returns the size of a device path in bytes. 192 193 This function returns the size, in bytes, of the device path data structure 194 specified by DevicePath including the end of device path node. 195 If DevicePath is NULL or invalid, then 0 is returned. 196 197 @param DevicePath A pointer to a device path data structure. 198 199 @retval 0 If DevicePath is NULL or invalid. 200 @retval Others The size of a device path in bytes. 201 202 **/ 203 UINTN 204 EFIAPI 205 UefiDevicePathLibGetDevicePathSize ( 206 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath 207 ); 208 209 /** 210 Creates a new copy of an existing device path. 211 212 This function allocates space for a new copy of the device path specified by DevicePath. 213 If DevicePath is NULL, then NULL is returned. If the memory is successfully 214 allocated, then the contents of DevicePath are copied to the newly allocated 215 buffer, and a pointer to that buffer is returned. Otherwise, NULL is returned. 216 The memory for the new device path is allocated from EFI boot services memory. 217 It is the responsibility of the caller to free the memory allocated. 218 219 @param DevicePath A pointer to a device path data structure. 220 221 @retval NULL DevicePath is NULL or invalid. 222 @retval Others A pointer to the duplicated device path. 223 224 **/ 225 EFI_DEVICE_PATH_PROTOCOL * 226 EFIAPI 227 UefiDevicePathLibDuplicateDevicePath ( 228 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath 229 ); 230 231 /** 232 Creates a new device path by appending a second device path to a first device path. 233 234 This function creates a new device path by appending a copy of SecondDevicePath 235 to a copy of FirstDevicePath in a newly allocated buffer. Only the end-of-device-path 236 device node from SecondDevicePath is retained. The newly created device path is 237 returned. If FirstDevicePath is NULL, then it is ignored, and a duplicate of 238 SecondDevicePath is returned. If SecondDevicePath is NULL, then it is ignored, 239 and a duplicate of FirstDevicePath is returned. If both FirstDevicePath and 240 SecondDevicePath are NULL, then a copy of an end-of-device-path is returned. 241 242 If there is not enough memory for the newly allocated buffer, then NULL is returned. 243 The memory for the new device path is allocated from EFI boot services memory. 244 It is the responsibility of the caller to free the memory allocated. 245 246 @param FirstDevicePath A pointer to a device path data structure. 247 @param SecondDevicePath A pointer to a device path data structure. 248 249 @retval NULL If there is not enough memory for the newly allocated buffer. 250 @retval NULL If FirstDevicePath or SecondDevicePath is invalid. 251 @retval Others A pointer to the new device path if success. 252 Or a copy an end-of-device-path if both FirstDevicePath and SecondDevicePath are NULL. 253 254 **/ 255 EFI_DEVICE_PATH_PROTOCOL * 256 EFIAPI 257 UefiDevicePathLibAppendDevicePath ( 258 IN CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL 259 IN CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL 260 ); 261 262 /** 263 Creates a new path by appending the device node to the device path. 264 265 This function creates a new device path by appending a copy of the device node 266 specified by DevicePathNode to a copy of the device path specified by DevicePath 267 in an allocated buffer. The end-of-device-path device node is moved after the 268 end of the appended device node. 269 If DevicePathNode is NULL then a copy of DevicePath is returned. 270 If DevicePath is NULL then a copy of DevicePathNode, followed by an end-of-device 271 path device node is returned. 272 If both DevicePathNode and DevicePath are NULL then a copy of an end-of-device-path 273 device node is returned. 274 If there is not enough memory to allocate space for the new device path, then 275 NULL is returned. 276 The memory is allocated from EFI boot services memory. It is the responsibility 277 of the caller to free the memory allocated. 278 279 @param DevicePath A pointer to a device path data structure. 280 @param DevicePathNode A pointer to a single device path node. 281 282 @retval NULL If there is not enough memory for the new device path. 283 @retval Others A pointer to the new device path if success. 284 A copy of DevicePathNode followed by an end-of-device-path node 285 if both FirstDevicePath and SecondDevicePath are NULL. 286 A copy of an end-of-device-path node if both FirstDevicePath 287 and SecondDevicePath are NULL. 288 289 **/ 290 EFI_DEVICE_PATH_PROTOCOL * 291 EFIAPI 292 UefiDevicePathLibAppendDevicePathNode ( 293 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL 294 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL 295 ); 296 297 /** 298 Creates a new device path by appending the specified device path instance to the specified device 299 path. 300 301 This function creates a new device path by appending a copy of the device path 302 instance specified by DevicePathInstance to a copy of the device path specified 303 by DevicePath in a allocated buffer. 304 The end-of-device-path device node is moved after the end of the appended device 305 path instance and a new end-of-device-path-instance node is inserted between. 306 If DevicePath is NULL, then a copy if DevicePathInstance is returned. 307 If DevicePathInstance is NULL, then NULL is returned. 308 If DevicePath or DevicePathInstance is invalid, then NULL is returned. 309 If there is not enough memory to allocate space for the new device path, then 310 NULL is returned. 311 The memory is allocated from EFI boot services memory. It is the responsibility 312 of the caller to free the memory allocated. 313 314 @param DevicePath A pointer to a device path data structure. 315 @param DevicePathInstance A pointer to a device path instance. 316 317 @return A pointer to the new device path. 318 319 **/ 320 EFI_DEVICE_PATH_PROTOCOL * 321 EFIAPI 322 UefiDevicePathLibAppendDevicePathInstance ( 323 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL 324 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL 325 ); 326 327 /** 328 Creates a copy of the current device path instance and returns a pointer to the next device path 329 instance. 330 331 This function creates a copy of the current device path instance. It also updates 332 DevicePath to point to the next device path instance in the device path (or NULL 333 if no more) and updates Size to hold the size of the device path instance copy. 334 If DevicePath is NULL, then NULL is returned. 335 If DevicePath points to a invalid device path, then NULL is returned. 336 If there is not enough memory to allocate space for the new device path, then 337 NULL is returned. 338 The memory is allocated from EFI boot services memory. It is the responsibility 339 of the caller to free the memory allocated. 340 If Size is NULL, then ASSERT(). 341 342 @param DevicePath On input, this holds the pointer to the current 343 device path instance. On output, this holds 344 the pointer to the next device path instance 345 or NULL if there are no more device path 346 instances in the device path pointer to a 347 device path data structure. 348 @param Size On output, this holds the size of the device 349 path instance, in bytes or zero, if DevicePath 350 is NULL. 351 352 @return A pointer to the current device path instance. 353 354 **/ 355 EFI_DEVICE_PATH_PROTOCOL * 356 EFIAPI 357 UefiDevicePathLibGetNextDevicePathInstance ( 358 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath, 359 OUT UINTN *Size 360 ); 361 362 /** 363 Creates a device node. 364 365 This function creates a new device node in a newly allocated buffer of size 366 NodeLength and initializes the device path node header with NodeType and NodeSubType. 367 The new device path node is returned. 368 If NodeLength is smaller than a device path header, then NULL is returned. 369 If there is not enough memory to allocate space for the new device path, then 370 NULL is returned. 371 The memory is allocated from EFI boot services memory. It is the responsibility 372 of the caller to free the memory allocated. 373 374 @param NodeType The device node type for the new device node. 375 @param NodeSubType The device node sub-type for the new device node. 376 @param NodeLength The length of the new device node. 377 378 @return The new device path. 379 380 **/ 381 EFI_DEVICE_PATH_PROTOCOL * 382 EFIAPI 383 UefiDevicePathLibCreateDeviceNode ( 384 IN UINT8 NodeType, 385 IN UINT8 NodeSubType, 386 IN UINT16 NodeLength 387 ); 388 389 /** 390 Determines if a device path is single or multi-instance. 391 392 This function returns TRUE if the device path specified by DevicePath is 393 multi-instance. 394 Otherwise, FALSE is returned. 395 If DevicePath is NULL or invalid, then FALSE is returned. 396 397 @param DevicePath A pointer to a device path data structure. 398 399 @retval TRUE DevicePath is multi-instance. 400 @retval FALSE DevicePath is not multi-instance, or DevicePath 401 is NULL or invalid. 402 403 **/ 404 BOOLEAN 405 EFIAPI 406 UefiDevicePathLibIsDevicePathMultiInstance ( 407 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath 408 ); 409 410 411 /** 412 Converts a device path to its text representation. 413 414 @param DevicePath A Pointer to the device to be converted. 415 @param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation 416 of the display node is used, where applicable. If DisplayOnly 417 is FALSE, then the longer text representation of the display node 418 is used. 419 @param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text 420 representation for a device node can be used, where applicable. 421 422 @return A pointer to the allocated text representation of the device path or 423 NULL if DeviceNode is NULL or there was insufficient memory. 424 425 **/ 426 CHAR16 * 427 EFIAPI 428 UefiDevicePathLibConvertDevicePathToText ( 429 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, 430 IN BOOLEAN DisplayOnly, 431 IN BOOLEAN AllowShortcuts 432 ); 433 434 /** 435 Converts a device node to its string representation. 436 437 @param DeviceNode A Pointer to the device node to be converted. 438 @param DisplayOnly If DisplayOnly is TRUE, then the shorter text representation 439 of the display node is used, where applicable. If DisplayOnly 440 is FALSE, then the longer text representation of the display node 441 is used. 442 @param AllowShortcuts If AllowShortcuts is TRUE, then the shortcut forms of text 443 representation for a device node can be used, where applicable. 444 445 @return A pointer to the allocated text representation of the device node or NULL if DeviceNode 446 is NULL or there was insufficient memory. 447 448 **/ 449 CHAR16 * 450 EFIAPI 451 UefiDevicePathLibConvertDeviceNodeToText ( 452 IN CONST EFI_DEVICE_PATH_PROTOCOL *DeviceNode, 453 IN BOOLEAN DisplayOnly, 454 IN BOOLEAN AllowShortcuts 455 ); 456 457 /** 458 Convert text to the binary representation of a device node. 459 460 @param TextDeviceNode TextDeviceNode points to the text representation of a device 461 node. Conversion starts with the first character and continues 462 until the first non-device node character. 463 464 @return A pointer to the EFI device node or NULL if TextDeviceNode is NULL or there was 465 insufficient memory or text unsupported. 466 467 **/ 468 EFI_DEVICE_PATH_PROTOCOL * 469 EFIAPI 470 UefiDevicePathLibConvertTextToDeviceNode ( 471 IN CONST CHAR16 *TextDeviceNode 472 ); 473 474 /** 475 Convert text to the binary representation of a device path. 476 477 478 @param TextDevicePath TextDevicePath points to the text representation of a device 479 path. Conversion starts with the first character and continues 480 until the first non-device node character. 481 482 @return A pointer to the allocated device path or NULL if TextDeviceNode is NULL or 483 there was insufficient memory. 484 485 **/ 486 EFI_DEVICE_PATH_PROTOCOL * 487 EFIAPI 488 UefiDevicePathLibConvertTextToDevicePath ( 489 IN CONST CHAR16 *TextDevicePath 490 ); 491 #else 492 493 /* 494 * Small FreeBSD shim layer. Fast and lose hacks to make this code work with FreeBSD. 495 */ 496 497 #include <ctype.h> 498 499 #define _PCD_GET_MODE_32_PcdMaximumDevicePathNodeCount 1000 500 #define MAX_UINTN UINTPTR_MAX 501 502 #define AllocatePool(x) malloc(x) 503 #define AllocateZeroPool(x) calloc(1,x) 504 #define AsciiStrLen(s) strlen(s) 505 #define CopyGuid(dst, src) memcpy(dst, src, sizeof(uuid_t)) 506 #define CopyMem(d, s, l) memcpy(d, s, l) 507 #define FreePool(x) free(x) 508 #define LShiftU64(x, s) ((x) << s) 509 #define ReadUnaligned64(x) le64dec(x) 510 #define ReallocatePool(old, new, ptr) realloc(ptr, new) 511 /* 512 * Quirky StrCmp returns 0 if equal, 1 if not. This is what the code 513 * expects, though that expectation is likely a bug (it casts the 514 * return value. EDK2's StrCmp returns values just like C's strcmp, 515 * but the parse code casts this to an UINTN, which is bogus. This 516 * definition papers over that bogusness to do the right thing. If 517 * iSCSI protocol string processing is ever fixed, we can remove this 518 * bletcherous kludge. 519 */ 520 #define StrCmp(a, b) (strcmp(a, b) != 0) 521 #define StrCpyS(d, l, s) strcpy(d, s) 522 #define StrHexToUint64(x) strtoll(x, NULL, 16) 523 #define StrHexToUintn(x) strtoll(x, NULL, 16) 524 #define StrLen(x) strlen(x) 525 #define StrSize(x) (strlen(x) + 1) 526 #define StrnCatS(d, l, s, len) strncat(d, s, len) 527 #define StrnCmp(a, b, n) strncmp(a, b, n) 528 #define StrnLenS(str, max) strlen(str) 529 #define Strtoi(x) strtol(x, NULL, 0) 530 #define Strtoi64(x, y) *(long long *)y = strtoll(x, NULL, 0) 531 #define SwapBytes64(u64) bswap64(u64) 532 #define UnicodeStrToAsciiStrS(src, dest, len) strlcpy(dest, src, len) 533 #define ZeroMem(p,l) memset(p, 0, l) 534 535 #undef ASSERT 536 #define ASSERT(x) 537 538 /* 539 * Define AllocateCopyPool and others so that we "forget" about the 540 * previous non-static deifnition since we want these to be static 541 * inlines. 542 */ 543 #define AllocateCopyPool AllocateCopyPoolFreeBSD 544 #define CompareGuid CompareGuidFreeBSD 545 #define StrHexToBytes StrHexToBytesFreeBSD 546 #define StrToGuid StrToGuidFreeBSD 547 #define WriteUnaligned64 WriteUnaligned64FreeBSD 548 549 static inline void * 550 AllocateCopyPool(size_t l, const void *p) 551 { 552 void *rv; 553 554 rv = malloc(l); 555 if (rv == NULL) 556 return NULL; 557 memcpy(rv, p, l); 558 return (rv); 559 } 560 561 static inline BOOLEAN 562 CompareGuid (const GUID *g1, const GUID *g2) 563 { 564 uint32_t ignored_status; 565 566 return (uuid_compare((const uuid_t *)g1, (const uuid_t *)g2, 567 &ignored_status) == 0); 568 } 569 570 static inline int 571 StrHexToBytes(const char *str, size_t len, uint8_t *buf, size_t buflen) 572 { 573 size_t i; 574 char hex[3]; 575 576 /* 577 * Sanity check preconditions. 578 */ 579 if (buflen != len / 2 || (len % 1) == 1) 580 return 1; 581 for (i = 0; i < len; i += 2) { 582 if (!isxdigit(str[i]) || !isxdigit(str[i + 1])) 583 return 1; 584 hex[0] = str[i]; 585 hex[1] = str[i + 1]; 586 hex[2] = '\0'; 587 buf[i / 2] = strtol(hex, NULL, 16); 588 } 589 return 0; 590 } 591 592 static inline void 593 StrToGuid(const char *str, GUID *guid) 594 { 595 uint32_t status; 596 597 uuid_from_string(str, (uuid_t *)guid, &status); 598 } 599 600 static inline void 601 WriteUnaligned64(void *ptr, uint64_t val) 602 { 603 memcpy(ptr, &val, sizeof(val)); 604 } 605 606 /* 607 * Hack to allow converting %g to %s in printfs. Hack because 608 * it's single entry, uses a static buffer, etc. Sufficient for 609 * the day for this file though. IF you ever have to convert 610 * two %g's in one format, punt. Did I mention this was super lame. 611 * Not to mention it's name.... Also, the error GUID is horrific. 612 */ 613 static inline const char * 614 guid_str(const GUID *g) 615 { 616 static char buf[36 + 1]; 617 char *str = NULL; 618 int32_t ignored_status; 619 620 uuid_to_string((const uuid_t *)g, &str, &ignored_status); 621 if (str != NULL) 622 strlcpy(buf, str, sizeof(buf)); 623 else 624 strlcpy(buf, "groot-cannot-decode-guid-groot-smash", 625 sizeof(buf)); /* ^^^^^^^ 36 characters ^^^^^^^ */ 626 free(str); 627 return buf; 628 } 629 #define G(x) guid_str((const GUID *)(const void *)x) 630 #endif 631 632 #undef GLOBAL_REMOVE_IF_UNREFERENCED 633 #define GLOBAL_REMOVE_IF_UNREFERENCED static 634 635 #endif 636