#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"#ifndef PACK_STRUCT_BEGIN#define PACK_STRUCT_BEGIN __packed#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 */#define  LWIP_PROVIDE_ERRNO#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 */#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 */#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 */#define  EDEADLOCK  EDEADLK#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 *///#define  EILSEQ    84  /* Illegal byte sequence */#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 */#define	ENSROK		0	/* DNS server returned answer with no data */#define	ENSRNODATA	160	/* DNS server returned answer with no data */#define	ENSRFORMERR	161	/* DNS server claims query was misformatted */#define	ENSRSERVFAIL 162	/* DNS server returned general failure */#define	ENSRNOTFOUND 163	/* Domain name not found */#define	ENSRNOTIMP	164	/* DNS server does not implement requested operation */#define	ENSRREFUSED	165	/* DNS server refused query */#define	ENSRBADQUERY 166	/* Misformatted DNS query */#define	ENSRBADNAME	167	/* Misformatted domain name */#define	ENSRBADFAMILY 168	/* Unsupported address family */#define	ENSRBADRESP	169	/* Misformatted DNS reply */#define	ENSRCONNREFUSED	170	/* Could not contact DNS servers */#define	ENSRTIMEOUT	171	/* Timeout while contacting DNS servers */#define	ENSROF		172	/* End of file */#define	ENSRFILE	173	/* Error reading file */#define	ENSRNOMEM	174	/* Out of memory */#define	ENSRDESTRUCTION	175	/* Application terminated lookup */#define	ENSRQUERYDOMAINTOOLONG	176	/* Domain name is too long */#define	ENSRCNAMELOOP	177	/* Domain name is too long */#ifndef errnoextern int errno;#endif#endif /* LWIP_PROVIDE_ERRNO */#endif /* __LWIP_ARCH_H__ */