src/include/errno.h

   1 #ifndef ERRNO_H
   2 #define ERRNO_H
   3
   4 /** @file
   5  *
   6  * Error codes
   7  *
   8  * Return status codes as used within gPXE are designed to allow for
   9  * maximum visibility into the source of an error even in an end-user
  10  * build with no debugging.  They are constructed as follows:
  11  *
  12  * Bits 7-0 : PXE error code
  13  *
  14  * This is the closest equivalent PXE error code
  15  * (e.g. PXENV_STATUS_OUT_OF_RESOURCES), and is the only part of the
  16  * error that will be returned via the PXE API, since PXE has
  17  * predefined error codes.
  18  *
  19  * Bits 12-8 : Per-file disambiguator
  20  *
  21  * When the same error number can be generated from multiple points
  22  * within a file, this field can be used to identify the unique
  23  * instance.
  24  *
  25  * Bits 23-13 : File identifier
  26  *
  27  * This is a unique identifier for the file generating the error
  28  * (e.g. ERRFILE_tcp for tcp.c).
  29  *
  30  * Bits 30-24 : POSIX error code
  31  *
  32  * This is the closest equivalent POSIX error code (e.g. ENOMEM).
  33  *
  34  * Bit 31 : Reserved
  35  *
  36  * Errors are usually return as negative error numbers (e.g. -EINVAL);
  37  * bit 31 is therefore unusable.
  38  *
  39  *
  40  * The convention within the code is that errors are negative and
  41  * expressed using the POSIX error code and (optionally) a per-file
  42  * disambiguator, e.g.
  43  *
  44  *     return -EINVAL;
  45  *
  46  * or
  47  *
  48  *     #define ETCP_BAD_CHECKSUM EUNIQ_02
  49  *     return -( EINVAL | ETCP_BAD_CHECKSUM )
  50  *
  51  * By various bits of preprocessor magic, the PXE error code and file
  52  * identifier are already incorporated into the definition of the
  53  * POSIX error code, which keeps the code relatively clean.
  54  *
  55  *
  56  * Functions that wish to return failures should be declared as
  57  * returning an integer @c rc "Return status code".  A return value of
  58  * zero indicates success, a non-zero value indicates failure.  The
  59  * return value can be passed directly to strerror() in order to
  60  * generate a human-readable error message, e.g.
  61  *
  62  *     if ( ( rc = some_function ( ... ) ) != 0 ) {
  63  *         DBG ( "Whatever I was trying to do failed: %s\n", strerror ( rc ) );
  64  *         return rc;
  65  *     }
  66  *
  67  * As illustrated in the above example, error returns should generally
  68  * be directly propagated upward to the calling function.
  69  *
  70  */
  71
  72 /* Get definitions for file identifiers */
  73 #include <gpxe/errfile.h>
  74
  75 /* If we do not have a valid file identifier, generate a compiler
  76  * warning upon usage of any error codes.  (Don't just use a #warning,
  77  * because some files include errno.h but don't ever actually use any
  78  * error codes.)
  79  */
  80 #if ! ERRFILE
  81 extern char missing_errfile_declaration[] __attribute__ (( deprecated ));
  82 #undef ERRFILE
  83 #define ERRFILE ( 0 * ( ( int ) missing_errfile_declaration ) )
  84 #endif
  85
  86 /** Derive PXENV_STATUS code from gPXE error number */
  87 #define PXENV_STATUS( rc ) ( (-(rc)) & 0x00ff )
  88
  89 /**
  90  * @defgroup pxeerrors PXE error codes
  91  *
  92  * The names, meanings and values of these error codes are defined by
  93  * the PXE specification.
  94  *
  95  * @{
  96  */
  97
  98 /* Generic errors */
  99 #define PXENV_STATUS_SUCCESS                                           0x0000
 100 #define PXENV_STATUS_FAILURE                                           0x0001
 101 #define PXENV_STATUS_BAD_FUNC                                          0x0002
 102 #define PXENV_STATUS_UNSUPPORTED                                       0x0003
 103 #define PXENV_STATUS_KEEP_UNDI                                         0x0004
 104 #define PXENV_STATUS_KEEP_ALL                                          0x0005
 105 #define PXENV_STATUS_OUT_OF_RESOURCES                                  0x0006
 106
 107 /* ARP errors (0x0010 to 0x001f) */
 108 #define PXENV_STATUS_ARP_TIMEOUT                                       0x0011
 109
 110 /* Base-Code state errors */
 111 #define PXENV_STATUS_UDP_CLOSED                                        0x0018
 112 #define PXENV_STATUS_UDP_OPEN                                          0x0019
 113 #define PXENV_STATUS_TFTP_CLOSED                                       0x001a
 114 #define PXENV_STATUS_TFTP_OPEN                                         0x001b
 115
 116 /* BIOS/system errors (0x0020 to 0x002f) */
 117 #define PXENV_STATUS_MCOPY_PROBLEM                                     0x0020
 118 #define PXENV_STATUS_BIS_INTEGRITY_FAILURE                             0x0021
 119 #define PXENV_STATUS_BIS_VALIDATE_FAILURE                              0x0022
 120 #define PXENV_STATUS_BIS_INIT_FAILURE                                  0x0023
 121 #define PXENV_STATUS_BIS_SHUTDOWN_FAILURE                              0x0024
 122 #define PXENV_STATUS_BIS_GBOA_FAILURE                                  0x0025
 123 #define PXENV_STATUS_BIS_FREE_FAILURE                                  0x0026
 124 #define PXENV_STATUS_BIS_GSI_FAILURE                                   0x0027
 125 #define PXENV_STATUS_BIS_BAD_CKSUM                                     0x0028
 126
 127 /* TFTP/MTFTP errors (0x0030 to 0x003f) */
 128 #define PXENV_STATUS_TFTP_CANNOT_ARP_ADDRESS                           0x0030
 129 #define PXENV_STATUS_TFTP_OPEN_TIMEOUT                                 0x0032
 130 #define PXENV_STATUS_TFTP_UNKNOWN_OPCODE                               0x0033
 131 #define PXENV_STATUS_TFTP_READ_TIMEOUT                                 0x0035
 132 #define PXENV_STATUS_TFTP_ERROR_OPCODE                                 0x0036
 133 #define PXENV_STATUS_TFTP_CANNOT_OPEN_CONNECTION                       0x0038
 134 #define PXENV_STATUS_TFTP_CANNOT_READ_FROM_CONNECTION                  0x0039
 135 #define PXENV_STATUS_TFTP_TOO_MANY_PACKAGES                            0x003a
 136 #define PXENV_STATUS_TFTP_FILE_NOT_FOUND                               0x003b
 137 #define PXENV_STATUS_TFTP_ACCESS_VIOLATION                             0x003c
 138 #define PXENV_STATUS_TFTP_NO_MCAST_ADDRESS                             0x003d
 139 #define PXENV_STATUS_TFTP_NO_FILESIZE                                  0x003e
 140 #define PXENV_STATUS_TFTP_INVALID_PACKET_SIZE                          0x003f
 141
 142 /* Reserved errors 0x0040 to 0x004f) */
 143
 144 /* DHCP/BOOTP errors (0x0050 to 0x005f) */
 145 #define PXENV_STATUS_DHCP_TIMEOUT                                      0x0051
 146 #define PXENV_STATUS_DHCP_NO_IP_ADDRESS                                0x0052
 147 #define PXENV_STATUS_DHCP_NO_BOOTFILE_NAME                             0x0053
 148 #define PXENV_STATUS_DHCP_BAD_IP_ADDRESS                               0x0054
 149
 150 /* Driver errors (0x0060 to 0x006f) */
 151 #define PXENV_STATUS_UNDI_INVALID_FUNCTION                             0x0060
 152 #define PXENV_STATUS_UNDI_MEDIATEST_FAILED                             0x0061
 153 #define PXENV_STATUS_UNDI_CANNOT_INIT_NIC_FOR_MCAST                    0x0062
 154 #define PXENV_STATUS_UNDI_CANNOT_INITIALIZE_NIC                        0x0063
 155 #define PXENV_STATUS_UNDI_CANNOT_INITIALIZE_PHY                        0x0064
 156 #define PXENV_STATUS_UNDI_CANNOT_READ_CONFIG_DATA                      0x0065
 157 #define PXENV_STATUS_UNDI_CANNOT_READ_INIT_DATA                        0x0066
 158 #define PXENV_STATUS_UNDI_BAD_MAC_ADDRESS                              0x0067
 159 #define PXENV_STATUS_UNDI_BAD_EEPROM_CHECKSUM                          0x0068
 160 #define PXENV_STATUS_UNDI_ERROR_SETTING_ISR                            0x0069
 161 #define PXENV_STATUS_UNDI_INVALID_STATE                                0x006a
 162 #define PXENV_STATUS_UNDI_TRANSMIT_ERROR                               0x006b
 163 #define PXENV_STATUS_UNDI_INVALID_PARAMETER                            0x006c
 164
 165 /* ROM and NBP bootstrap errors (0x0070 to 0x007f) */
 166 #define PXENV_STATUS_BSTRAP_PROMPT_MENU                                0x0074
 167 #define PXENV_STATUS_BSTRAP_MCAST_ADDR                                 0x0076
 168 #define PXENV_STATUS_BSTRAP_MISSING_LIST                               0x0077
 169 #define PXENV_STATUS_BSTRAP_NO_RESPONSE                                0x0078
 170 #define PXENV_STATUS_BSTRAP_FILE_TOO_BIG                               0x0079
 171
 172 /* Environment NBP errors (0x0080 to 0x008f) */
 173
 174 /* Reserved errors (0x0090 to 0x009f) */
 175
 176 /* Miscellaneous errors (0x00a0 to 0x00af) */
 177 #define PXENV_STATUS_BINL_CANCELED_BY_KEYSTROKE                        0x00a0
 178 #define PXENV_STATUS_BINL_NO_PXE_SERVER                                0x00a1
 179 #define PXENV_STATUS_NOT_AVAILABLE_IN_PMODE                            0x00a2
 180 #define PXENV_STATUS_NOT_AVAILABLE_IN_RMODE                            0x00a3
 181
 182 /* BUSD errors (0x00b0 to 0x00bf) */
 183 #define PXENV_STATUS_BUSD_DEVICE_NOT_SUPPORTED                         0x00b0
 184
 185 /* Loader errors (0x00c0 to 0x00cf) */
 186 #define PXENV_STATUS_LOADER_NO_FREE_BASE_MEMORY                        0x00c0
 187 #define PXENV_STATUS_LOADER_NO_BC_ROMID                                0x00c1
 188 #define PXENV_STATUS_LOADER_BAD_BC_ROMID                               0x00c2
 189 #define PXENV_STATUS_LOADER_BAD_BC_RUNTIME_IMAGE                       0x00c3
 190 #define PXENV_STATUS_LOADER_NO_UNDI_ROMID                              0x00c4
 191 #define PXENV_STATUS_LOADER_BAD_UNDI_ROMID                             0x00c5
 192 #define PXENV_STATUS_LOADER_BAD_UNDI_DRIVER_IMAGE                      0x00c6
 193 #define PXENV_STATUS_LOADER_NO_PXE_STRUCT                              0x00c8
 194 #define PXENV_STATUS_LOADER_NO_PXENV_STRUCT                            0x00c9
 195 #define PXENV_STATUS_LOADER_UNDI_START                                 0x00ca
 196 #define PXENV_STATUS_LOADER_BC_START                                   0x00cb
 197
 198 /** @} */
 199
 200 /**
 201  * @defgroup posixerrors POSIX error codes
 202  *
 203  * The names and meanings (but not the values) of these error codes
 204  * are defined by POSIX.  We choose to assign unique values which
 205  * incorporate the closest equivalent PXE error code, so that code may
 206  * simply use ENOMEM, rather than having to use the cumbersome
 207  * (ENOMEM|PXENV_STATUS_OUT_OF_RESOURCES).
 208  *
 209  * @{
 210  */
 211
 212 /** Operation completed successfully */
 213 #define ENOERR                  ( ERRFILE | PXENV_STATUS_SUCCESS | 0x00000000 )
 214
 215 /** Arg list too long */
 216 #define E2BIG                  ( ERRFILE | PXENV_STATUS_BAD_FUNC | 0x01000000 )
 217
 218 /** Permission denied */
 219 #define EACCES    ( ERRFILE | PXENV_STATUS_TFTP_ACCESS_VIOLATION | 0x02000000 )
 220
 221 /** Address in use */
 222 #define EADDRINUSE             ( ERRFILE | PXENV_STATUS_UDP_OPEN | 0x03000000 )
 223
 224 /** Address not available */
 225 #define EADDRNOTAVAIL          ( ERRFILE | PXENV_STATUS_UDP_OPEN | 0x04000000 )
 226
 227 /** Address family not supported */
 228 #define EAFNOSUPPORT        ( ERRFILE | PXENV_STATUS_UNSUPPORTED | 0x05000000 )
 229
 230 /** Resource temporarily unavailable */
 231 #define EAGAIN                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x06000000 )
 232
 233 /** Connection already in progress */
 234 #define EALREADY               ( ERRFILE | PXENV_STATUS_UDP_OPEN | 0x07000000 )
 235
 236 /** Bad file descriptor */
 237 #define EBADF               ( ERRFILE | PXENV_STATUS_TFTP_CLOSED | 0x08000000 )
 238
 239 /** Bad message */
 240 #define EBADMSG                 ( ERRFILE | PXENV_STATUS_FAILURE | 0x09000000 )
 241
 242 /** Resource busy */
 243 #define EBUSY          ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x0a000000 )
 244
 245 /** Operation canceled */
 246 #define ECANCELED \
 247              ( ERRFILE | PXENV_STATUS_BINL_CANCELED_BY_KEYSTROKE | 0x0b000000 )
 248
 249 /** No child processes */
 250 #define ECHILD      ( ERRFILE | PXENV_STATUS_TFTP_FILE_NOT_FOUND | 0x0c000000 )
 251
 252 /** Connection aborted */
 253 #define ECONNABORTED \
 254        ( ERRFILE | PXENV_STATUS_TFTP_CANNOT_READ_FROM_CONNECTION | 0x0d000000 )
 255
 256 /** Connection refused */
 257 #define ECONNREFUSED \
 258             ( ERRFILE | PXENV_STATUS_TFTP_CANNOT_OPEN_CONNECTION | 0x0e000000 )
 259
 260 /** Connection reset */
 261 #define ECONNRESET \
 262        ( ERRFILE | PXENV_STATUS_TFTP_CANNOT_READ_FROM_CONNECTION | 0x0f000000 )
 263
 264 /** Resource deadlock avoided */
 265 #define EDEADLK                 ( ERRFILE | PXENV_STATUS_FAILURE | 0x10000000 )
 266
 267 /** Destination address required */
 268 #define EDESTADDRREQ           ( ERRFILE | PXENV_STATUS_BAD_FUNC | 0x11000000 )
 269
 270 /** Domain error */
 271 #define EDOM                    ( ERRFILE | PXENV_STATUS_FAILURE | 0x12000000 )
 272
 273 /** Reserved */
 274 #define EDQUOT                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x13000000 )
 275
 276 /** File exists */
 277 #define EEXIST                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x14000000 )
 278
 279 /** Bad address */
 280 #define EFAULT            ( ERRFILE | PXENV_STATUS_MCOPY_PROBLEM | 0x15000000 )
 281
 282 /** File too large */
 283 #define EFBIG             ( ERRFILE | PXENV_STATUS_MCOPY_PROBLEM | 0x16000000 )
 284
 285 /** Host is unreachable */
 286 #define EHOSTUNREACH        ( ERRFILE | PXENV_STATUS_ARP_TIMEOUT | 0x17000000 )
 287
 288 /** Identifier removed */
 289 #define EIDRM                   ( ERRFILE | PXENV_STATUS_FAILURE | 0x18000000 )
 290
 291 /** Illegal byte sequence */
 292 #define EILSEQ                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x19000000 )
 293
 294 /** Operation in progress */
 295 #define EINPROGRESS             ( ERRFILE | PXENV_STATUS_FAILURE | 0x1a000000 )
 296
 297 /** Interrupted function call */
 298 #define EINTR                   ( ERRFILE | PXENV_STATUS_FAILURE | 0x1b000000 )
 299
 300 /** Invalid argument */
 301 #define EINVAL                 ( ERRFILE | PXENV_STATUS_BAD_FUNC | 0x1c000000 )
 302
 303 /** Input/output error */
 304 #define EIO \
 305        ( ERRFILE | PXENV_STATUS_TFTP_CANNOT_READ_FROM_CONNECTION | 0x1d000000 )
 306
 307 /** Socket is connected */
 308 #define EISCONN                ( ERRFILE | PXENV_STATUS_UDP_OPEN | 0x1e000000 )
 309
 310 /** Is a directory */
 311 #define EISDIR                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x1f000000 )
 312
 313 /** Too many levels of symbolic links */
 314 #define ELOOP                   ( ERRFILE | PXENV_STATUS_FAILURE | 0x20000000 )
 315
 316 /** Too many open files */
 317 #define EMFILE         ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x21000000 )
 318
 319 /** Too many links */
 320 #define EMLINK                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x22000000 )
 321
 322 /** Inappropriate message buffer length */
 323 #define EMSGSIZE               ( ERRFILE | PXENV_STATUS_BAD_FUNC | 0x23000000 )
 324
 325 /** Reserved */
 326 #define EMULTIHOP               ( ERRFILE | PXENV_STATUS_FAILURE | 0x24000000 )
 327
 328 /** Filename too long */
 329 #define ENAMETOOLONG            ( ERRFILE | PXENV_STATUS_FAILURE | 0x25000000 )
 330
 331 /** Network is down */
 332 #define ENETDOWN            ( ERRFILE | PXENV_STATUS_ARP_TIMEOUT | 0x26000000 )
 333
 334 /** Connection aborted by network */
 335 #define ENETRESET               ( ERRFILE | PXENV_STATUS_FAILURE | 0x27000000 )
 336
 337 /** Network unreachable */
 338 #define ENETUNREACH         ( ERRFILE | PXENV_STATUS_ARP_TIMEOUT | 0x28000000 )
 339
 340 /** Too many open files in system */
 341 #define ENFILE         ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x29000000 )
 342
 343 /** No buffer space available */
 344 #define ENOBUFS        ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x2a000000 )
 345
 346 /** No message is available on the STREAM head read queue */
 347 #define ENODATA                 ( ERRFILE | PXENV_STATUS_FAILURE | 0x2b000000 )
 348
 349 /** No such device */
 350 #define ENODEV      ( ERRFILE | PXENV_STATUS_TFTP_FILE_NOT_FOUND | 0x2c000000 )
 351
 352 /** No such file or directory */
 353 #define ENOENT      ( ERRFILE | PXENV_STATUS_TFTP_FILE_NOT_FOUND | 0x2d000000 )
 354
 355 /** Exec format error */
 356 #define ENOEXEC                 ( ERRFILE | PXENV_STATUS_FAILURE | 0x2e000000 )
 357
 358 /** No locks available */
 359 #define ENOLCK                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x2f000000 )
 360
 361 /** Reserved */
 362 #define ENOLINK                 ( ERRFILE | PXENV_STATUS_FAILURE | 0x30000000 )
 363
 364 /** Not enough space */
 365 #define ENOMEM         ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x31000000 )
 366
 367 /** No message of the desired type */
 368 #define ENOMSG                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x32000000 )
 369
 370 /** Protocol not available */
 371 #define ENOPROTOOPT         ( ERRFILE | PXENV_STATUS_UNSUPPORTED | 0x33000000 )
 372
 373 /** No space left on device */
 374 #define ENOSPC         ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x34000000 )
 375
 376 /** No STREAM resources */
 377 #define ENOSR          ( ERRFILE | PXENV_STATUS_OUT_OF_RESOURCES | 0x35000000 )
 378
 379 /** Not a STREAM */
 380 #define ENOSTR                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x36000000 )
 381
 382 /** Function not implemented */
 383 #define ENOSYS              ( ERRFILE | PXENV_STATUS_UNSUPPORTED | 0x37000000 )
 384
 385 /** The socket is not connected */
 386 #define ENOTCONN                ( ERRFILE | PXENV_STATUS_FAILURE | 0x38000000 )
 387
 388 /** Not a directory */
 389 #define ENOTDIR                 ( ERRFILE | PXENV_STATUS_FAILURE | 0x39000000 )
 390
 391 /** Directory not empty */
 392 #define ENOTEMPTY               ( ERRFILE | PXENV_STATUS_FAILURE | 0x3a000000 )
 393
 394 /** Not a socket */
 395 #define ENOTSOCK                ( ERRFILE | PXENV_STATUS_FAILURE | 0x3b000000 )
 396
 397 /** Not supported */
 398 #define ENOTSUP             ( ERRFILE | PXENV_STATUS_UNSUPPORTED | 0x3c000000 )
 399
 400 /** Inappropriate I/O control operation */
 401 #define ENOTTY                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x3d000000 )
 402
 403 /** No such device or address */
 404 #define ENXIO       ( ERRFILE | PXENV_STATUS_TFTP_FILE_NOT_FOUND | 0x3e000000 )
 405
 406 /** Operation not supported on socket */
 407 #define EOPNOTSUPP          ( ERRFILE | PXENV_STATUS_UNSUPPORTED | 0x3f000000 )
 408
 409 /** Value too large to be stored in data type */
 410 #define EOVERFLOW               ( ERRFILE | PXENV_STATUS_FAILURE | 0x40000000 )
 411
 412 /** Operation not permitted */
 413 #define EPERM     ( ERRFILE | PXENV_STATUS_TFTP_ACCESS_VIOLATION | 0x41000000 )
 414
 415 /** Broken pipe */
 416 #define EPIPE                   ( ERRFILE | PXENV_STATUS_FAILURE | 0x42000000 )
 417
 418 /** Protocol error */
 419 #define EPROTO                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x43000000 )
 420
 421 /** Protocol not supported */
 422 #define EPROTONOSUPPORT     ( ERRFILE | PXENV_STATUS_UNSUPPORTED | 0x44000000 )
 423
 424 /** Protocol wrong type for socket */
 425 #define EPROTOTYPE              ( ERRFILE | PXENV_STATUS_FAILURE | 0x45000000 )
 426
 427 /** Result too large */
 428 #define ERANGE                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x46000000 )
 429
 430 /** Read-only file system */
 431 #define EROFS                   ( ERRFILE | PXENV_STATUS_FAILURE | 0x47000000 )
 432
 433 /** Invalid seek */
 434 #define ESPIPE                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x48000000 )
 435
 436 /** No such process */
 437 #define ESRCH       ( ERRFILE | PXENV_STATUS_TFTP_FILE_NOT_FOUND | 0x49000000 )
 438
 439 /** Stale file handle */
 440 #define ESTALE                  ( ERRFILE | PXENV_STATUS_FAILURE | 0x4a000000 )
 441
 442 /** STREAM ioctl() timeout */
 443 #define ETIME                   ( ERRFILE | PXENV_STATUS_FAILURE | 0x4b000000 )
 444
 445 /** Operation timed out */
 446 #define ETIMEDOUT     ( ERRFILE | PXENV_STATUS_TFTP_READ_TIMEOUT | 0x4c000000 )
 447
 448 /** Text file busy */
 449 #define ETXTBSY                 ( ERRFILE | PXENV_STATUS_FAILURE | 0x4d000000 )
 450
 451 /** Operation would block (different from EAGAIN!) */
 452 #define EWOULDBLOCK           ( ERRFILE | PXENV_STATUS_TFTP_OPEN | 0x4e000000 )
 453
 454 /** Improper link */
 455 #define EXDEV                   ( ERRFILE | PXENV_STATUS_FAILURE | 0x4f000000 )
 456
 457 /** @} */
 458
 459 /**
 460  * @defgroup euniq Per-file error disambiguators
 461  *
 462  * Files which use the same error number multiple times should
 463  * probably define their own error subspace using these
 464  * disambiguators.  For example:
 465  *
 466  *     #define ETCP_HEADER_TOO_SHORT    EUNIQ_01
 467  *     #define ETCP_BAD_CHECKSUM        EUNIQ_02
 468  *
 469  * @{
 470  */
 471
 472 #define EUNIQ_01        0x00000100
 473 #define EUNIQ_02        0x00000200
 474 #define EUNIQ_03        0x00000300
 475 #define EUNIQ_04        0x00000400
 476 #define EUNIQ_05        0x00000500
 477 #define EUNIQ_06        0x00000600
 478 #define EUNIQ_07        0x00000700
 479 #define EUNIQ_08        0x00000800
 480 #define EUNIQ_09        0x00000900
 481 #define EUNIQ_0A        0x00000a00
 482 #define EUNIQ_0B        0x00000b00
 483 #define EUNIQ_0C        0x00000c00
 484 #define EUNIQ_0D        0x00000d00
 485 #define EUNIQ_0E        0x00000e00
 486 #define EUNIQ_0F        0x00000f00
 487 #define EUNIQ_10        0x00001000
 488 #define EUNIQ_11        0x00001100
 489 #define EUNIQ_12        0x00001200
 490 #define EUNIQ_13        0x00001300
 491 #define EUNIQ_14        0x00001400
 492 #define EUNIQ_15        0x00001500
 493 #define EUNIQ_16        0x00001600
 494 #define EUNIQ_17        0x00001700
 495 #define EUNIQ_18        0x00001800
 496 #define EUNIQ_19        0x00001900
 497 #define EUNIQ_1A        0x00001a00
 498 #define EUNIQ_1B        0x00001b00
 499 #define EUNIQ_1C        0x00001c00
 500 #define EUNIQ_1D        0x00001d00
 501 #define EUNIQ_1E        0x00001e00
 502 #define EUNIQ_1F        0x00001f00
 503
 504 /** @} */
 505
 506 extern int errno;
 507
 508 #endif /* ERRNO_H */