text: /*
   * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
   * All rights reserved. 
   * 
   * Redistribution and use in source and binary forms, with or without modification, 
   * are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice,
   *    this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   *    this list of conditions and the following disclaimer in the documentation
   *    and/or other materials provided with the distribution.
   * 3. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission. 
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
   * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
   * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
   * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
   * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
   * OF SUCH DAMAGE.
   *
   * This file is part of the lwIP TCP/IP stack.
   * 
   * Author: Adam Dunkels <adam@sics.se>
   *
   */
  #ifndef __LWIP_ARCH_H__
  #define __LWIP_ARCH_H__
  
  #ifndef LITTLE_ENDIAN
  #define LITTLE_ENDIAN 1234
  #endif
  
  #ifndef BIG_ENDIAN
  #define BIG_ENDIAN 4321
  #endif
  
  #include "arch/cc.h"
  
  /** Temporary: define format string for size_t if not defined in cc.h */
  #ifndef SZT_F
  #define SZT_F U32_F
  #endif /* SZT_F */
  /** Temporary upgrade helper: define format string for u8_t as hex if not
      defined in cc.h */
  #ifndef X8_F
  #define X8_F  "02x"
  #endif /* X8_F */
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #ifndef PACK_STRUCT_BEGIN
  #define PACK_STRUCT_BEGIN
  #endif /* PACK_STRUCT_BEGIN */
  
  #ifndef PACK_STRUCT_END
  #define PACK_STRUCT_END
  #endif /* PACK_STRUCT_END */
  
  #ifndef PACK_STRUCT_FIELD
  #define PACK_STRUCT_FIELD(x) x
  #endif /* PACK_STRUCT_FIELD */
  
  
  #ifndef LWIP_UNUSED_ARG
  #define LWIP_UNUSED_ARG(x) (void)x
  #endif /* LWIP_UNUSED_ARG */ 
  
  
  #ifdef LWIP_PROVIDE_ERRNO
  
  #define  EPERM         1  /* Operation not permitted */
  #define  ENOENT        2  /* No such file or directory */
  #define  ESRCH         3  /* No such process */
  #define  EINTR         4  /* Interrupted system call */
  #define  EIO           5  /* I/O error */
  #define  ENXIO         6  /* No such device or address */
  #define  E2BIG         7  /* Arg list too long */
  #define  ENOEXEC       8  /* Exec format error */
  #define  EBADF         9  /* Bad file number */
  #define  ECHILD       10  /* No child processes */
  #define  EAGAIN       11  /* Try again */
  #define  ENOMEM       12  /* Out of memory */
  #define  EACCES       13  /* Permission denied */
  #define  EFAULT       14  /* Bad address */
  #define  ENOTBLK      15  /* Block device required */
  #define  EBUSY        16  /* Device or resource busy */
  #define  EEXIST       17  /* File exists */
  #define  EXDEV        18  /* Cross-device link */
  #define  ENODEV       19  /* No such device */
  #define  ENOTDIR      20  /* Not a directory */
  #define  EISDIR       21  /* Is a directory */
  #define  EINVAL       22  /* Invalid argument */
  #define  ENFILE       23  /* File table overflow */
  #define  EMFILE       24  /* Too many open files */
  #define  ENOTTY       25  /* Not a typewriter */
  #define  ETXTBSY      26  /* Text file busy */
  #define  EFBIG        27  /* File too large */
  #define  ENOSPC       28  /* No space left on device */
  #define  ESPIPE       29  /* Illegal seek */
  #define  EROFS        30  /* Read-only file system */
  #define  EMLINK       31  /* Too many links */
  #define  EPIPE        32  /* Broken pipe */
  #define  EDOM         33  /* Math argument out of domain of func */
  #define  ERANGE       34  /* Math result not representable */
  #ifndef  EDEADLK     /* These are defined by Windows headers - prevent duplication */
  #define  EDEADLK      35  /* Resource deadlock would occur */
  #define  ENAMETOOLONG 36  /* File name too long */
  #define  ENOLCK       37  /* No record locks available */
  #define  ENOSYS       38  /* Function not implemented */
  #define  ENOTEMPTY    39  /* Directory not empty */
  #endif /* ifndef EDEADLK */
  #define  ELOOP        40  /* Too many symbolic links encountered */
  #define  EWOULDBLOCK  EAGAIN  /* Operation would block */
  #define  ENOMSG       42  /* No message of desired type */
  #define  EIDRM        43  /* Identifier removed */
  #define  ECHRNG       44  /* Channel number out of range */
  #define  EL2NSYNC     45  /* Level 2 not synchronized */
  #define  EL3HLT       46  /* Level 3 halted */
  #define  EL3RST       47  /* Level 3 reset */
  #define  ELNRNG       48  /* Link number out of range */
  #define  EUNATCH      49  /* Protocol driver not attached */
  #define  ENOCSI       50  /* No CSI structure available */
  #define  EL2HLT       51  /* Level 2 halted */
  #define  EBADE        52  /* Invalid exchange */
  #define  EBADR        53  /* Invalid request descriptor */
  #define  EXFULL       54  /* Exchange full */
  #define  ENOANO       55  /* No anode */
  #define  EBADRQC      56  /* Invalid request code */
  #define  EBADSLT      57  /* Invalid slot */
  
  #ifndef  EDEADLOCK     /* This is defined by Windows headers - prevent duplication */
  #define  EDEADLOCK    EDEADLK
  #endif /* ifndef  EDEADLOCK */
  
  #define  EBFONT       59  /* Bad font file format */
  #define  ENOSTR       60  /* Device not a stream */
  #define  ENODATA      61  /* No data available */
  #define  ETIME        62  /* Timer expired */
  #define  ENOSR        63  /* Out of streams resources */
  #define  ENONET       64  /* Machine is not on the network */
  #define  ENOPKG       65  /* Package not installed */
  #define  EREMOTE      66  /* Object is remote */
  #define  ENOLINK      67  /* Link has been severed */
  #define  EADV         68  /* Advertise error */
  #define  ESRMNT       69  /* Srmount error */
  #define  ECOMM        70  /* Communication error on send */
  #define  EPROTO       71  /* Protocol error */
  #define  EMULTIHOP    72  /* Multihop attempted */
  #define  EDOTDOT      73  /* RFS specific error */
  #define  EBADMSG      74  /* Not a data message */
  #define  EOVERFLOW    75  /* Value too large for defined data type */
  #define  ENOTUNIQ     76  /* Name not unique on network */
  #define  EBADFD       77  /* File descriptor in bad state */
  #define  EREMCHG      78  /* Remote address changed */
  #define  ELIBACC      79  /* Can not access a needed shared library */
  #define  ELIBBAD      80  /* Accessing a corrupted shared library */
  #define  ELIBSCN      81  /* .lib section in a.out corrupted */
  #define  ELIBMAX      82  /* Attempting to link in too many shared libraries */
  #define  ELIBEXEC     83  /* Cannot exec a shared library directly */
  #ifndef  EILSEQ     /* This is defined by Windows headers - prevent duplication */
  #define  EILSEQ       84  /* Illegal byte sequence */
  #endif /* ifndef  EILSEQ */
  #define  ERESTART     85  /* Interrupted system call should be restarted */
  #define  ESTRPIPE     86  /* Streams pipe error */
  #define  EUSERS       87  /* Too many users */
  #define  ENOTSOCK     88  /* Socket operation on non-socket */
  #define  EDESTADDRREQ 89  /* Destination address required */
  #define  EMSGSIZE     90  /* Message too long */
  #define  EPROTOTYPE   91  /* Protocol wrong type for socket */
  #define  ENOPROTOOPT  92  /* Protocol not available */
  #define  EPROTONOSUPPORT 93  /* Protocol not supported */
  #define  ESOCKTNOSUPPORT 94  /* Socket type not supported */
  #define  EOPNOTSUPP      95  /* Operation not supported on transport endpoint */
  #define  EPFNOSUPPORT    96  /* Protocol family not supported */
  #define  EAFNOSUPPORT    97  /* Address family not supported by protocol */
  #define  EADDRINUSE      98  /* Address already in use */
  #define  EADDRNOTAVAIL   99  /* Cannot assign requested address */
  #define  ENETDOWN       100  /* Network is down */
  #define  ENETUNREACH    101  /* Network is unreachable */
  #define  ENETRESET      102  /* Network dropped connection because of reset */
  #define  ECONNABORTED   103  /* Software caused connection abort */
  #define  ECONNRESET     104  /* Connection reset by peer */
  #define  ENOBUFS        105  /* No buffer space available */
  #define  EISCONN        106  /* Transport endpoint is already connected */
  #define  ENOTCONN       107  /* Transport endpoint is not connected */
  #define  ESHUTDOWN      108  /* Cannot send after transport endpoint shutdown */
  #define  ETOOMANYREFS   109  /* Too many references: cannot splice */
  #define  ETIMEDOUT      110  /* Connection timed out */
  #define  ECONNREFUSED   111  /* Connection refused */
  #define  EHOSTDOWN      112  /* Host is down */
  #define  EHOSTUNREACH   113  /* No route to host */
  #define  EALREADY       114  /* Operation already in progress */
  #define  EINPROGRESS    115  /* Operation now in progress */
  #define  ESTALE         116  /* Stale NFS file handle */
  #define  EUCLEAN        117  /* Structure needs cleaning */
  #define  ENOTNAM        118  /* Not a XENIX named type file */
  #define  ENAVAIL        119  /* No XENIX semaphores available */
  #define  EISNAM         120  /* Is a named type file */
  #define  EREMOTEIO      121  /* Remote I/O error */
  #define  EDQUOT         122  /* Quota exceeded */
  
  #define  ENOMEDIUM      123  /* No medium found */
  #define  EMEDIUMTYPE    124  /* Wrong medium type */
  
  #ifndef errno
  extern int errno;
  #endif
  
  #endif /* LWIP_PROVIDE_ERRNO */
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* __LWIP_ARCH_H__ */
  