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+/*
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+ * errno.h - errors
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+ */
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+/* $Header$ */
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+
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+#ifndef _ERRNO_HEADER_
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+#define _ERRNO_HEADER_
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+
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+#define EPERM 1 /* Not owner */
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+#define ENOENT 2 /* No such file or directory */
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+#define ESRCH 3 /* No such process */
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+#define EINTR 4 /* Interrupted system call */
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+#define EIO 5 /* I/O error */
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+#define ENXIO 6 /* No such device or address */
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+#define E2BIG 7 /* Arg list too long */
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+#define ENOEXEC 8 /* Exec format error */
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+#define EBADF 9 /* Bad file number */
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+#define ECHILD 10 /* No children */
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+#define EAGAIN 11 /* No more processes */
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+#define ENOMEM 12 /* Not enough core */
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+#define EACCES 13 /* Permission denied */
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+#define EFAULT 14 /* Bad address */
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+#define ENOTBLK 15 /* Block device required */
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+#define EBUSY 16 /* Mount device busy */
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+#define EEXIST 17 /* File exists */
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+#define EXDEV 18 /* Cross-device link */
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+#define ENODEV 19 /* No such device */
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+#define ENOTDIR 20 /* Not a directory*/
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+#define EISDIR 21 /* Is a directory */
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+#define EINVAL 22 /* Invalid argument */
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+#define ENFILE 23 /* File table overflow */
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+#define EMFILE 24 /* Too many open files */
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+#define ENOTTY 25 /* Not a typewriter */
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+#define ETXTBSY 26 /* Text file busy */
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+#define EFBIG 27 /* File too large */
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+#define ENOSPC 28 /* No space left on device */
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+#define ESPIPE 29 /* Illegal seek */
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+#define EROFS 30 /* Read-only file system */
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+#define EMLINK 31 /* Too many links */
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+#define EPIPE 32 /* Broken pipe */
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+
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+/* The standard requires the next two definitions */
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+#define EDOM 33 /* math arg out of domain of func */
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+#define ERANGE 34 /* math result not representable */
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+
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+#ifdef __USG
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+/* Only ENOMSG, EIDRM and EDEADLK are documented */
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+#define ENOMSG 35 /* No message of desired type */
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+#define EIDRM 36 /* Identifier Removed */
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+#define ECHRNG 37 /* Channel number out of range */
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+#define EL2NSYNC 38 /* Level 2 not synchronized */
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+#define EL3HLT 39 /* Level 3 halted */
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+#define EL3RST 40 /* Level 3 reset */
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+#define ELNRNG 41 /* Link number out of range */
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+#define EUNATCH 42 /* Protocol driver not attached */
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+#define ENOCSI 43 /* No CSI structure available */
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+#define EL2HLT 44 /* Level 2 halted */
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+#define EDEADLK 45 /* DeadLock */
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+#endif /* __USG */
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+
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+#ifdef __BDS4_2
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+/* non-blocking and interrupt i/o */
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+#define EWOULDBLOCK 35 /* Operation would block */
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+#define EINPROGRESS 36 /* Operation now in progress */
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+#define EALREADY 37 /* Operation already in progress */
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+/* ipc/network software */
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+
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+ /* argument errors */
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+#define ENOTSOCK 38 /* Socket operation on non-socket */
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+#define EDESTADDRREQ 39 /* Destination address required */
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+#define EMSGSIZE 40 /* Message too long */
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+#define EPROTOTYPE 41 /* Protocol wrong type for socket */
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+#define ENOPROTOOPT 42 /* Protocol not available */
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+#define EPROTONOSUPPORT 43 /* Protocol not supported */
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+#define ESOCKTNOSUPPORT 44 /* Socket type not supported */
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+#define EOPNOTSUPP 45 /* Operation not supported on socket */
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+#define EPFNOSUPPORT 46 /* Protocol family not supported */
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+#define EAFNOSUPPORT 47 /* Address family not supported by protocol family */
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+#define EADDRINUSE 48 /* Address already in use */
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+#define EADDRNOTAVAIL 49 /* Can't assign requested address */
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+
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+ /* operational errors */
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+#define ENETDOWN 50 /* Network is down */
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+#define ENETUNREACH 51 /* Network is unreachable */
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+#define ENETRESET 52 /* Network dropped connection on reset */
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+#define ECONNABORTED 53 /* Software caused connection abort */
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+#define ECONNRESET 54 /* Connection reset by peer */
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+#define ENOBUFS 55 /* No buffer space available */
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+#define EISCONN 56 /* Socket is already connected */
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+#define ENOTCONN 57 /* Socket is not connected */
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+#define ESHUTDOWN 58 /* Can't send after socket shutdown */
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+/* ETOOMANYREFS is not documented */
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+#define ETOOMANYREFS 59 /* Too many references: can't splice */
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+#define ETIMEDOUT 60 /* Connection timed out */
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+#define ECONNREFUSED 61 /* Connection refused */
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+
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+ /* */
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+#define ELOOP 62 /* Too many levels of symbolic links */
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+#define ENAMETOOLONG 63 /* File name too long */
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+
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+/* In BSD4.2, ENOTEMPTY is defined as 64. */
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+/* Just use BSD4.3 & Sun UNIX 4.2 definitions */
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+#define EHOSTDOWN 64 /* Host is down */
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+#define EHOSTUNREACH 65 /* No route to host */
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+#define ENOTEMPTY 66 /* Directory not empty */
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+
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+/* quotas & mush */
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+/* EPROCLIM and EUSERS are not documented */
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+#define EPROCLIM 67 /* Too many processes */
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+#define EUSERS 68 /* Too many users */
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+#define EDQUOT 69 /* Disc quota exceeded */
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+
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+/* Network File System */
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+#define ESTALE 70 /* Stale NFS file handle */
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+#define EREMOTE 71 /* Too many levels of remote in path */
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+
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+/* streams */
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+/* only ENOMSG is documented */
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+#define ENOSTR 72 /* Device is not a stream */
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+#define ETIME 73 /* Timer expired */
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+#define ENOSR 74 /* Out of streams resources */
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+#define ENOMSG 75 /* No message of desired type */
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+#define EBADMSG 76 /* Trying to read unreadable message */
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+
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+#define EIDRM 77 /* Identifier removed */
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+
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+/* SystemV Record Locking */
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+#define EDEADLK 78 /* Deadlock condition. */
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+#define ENOLCK 79 /* No record locks available. */
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+
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+#endif /* __BSD4_2 */
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+
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+extern int errno; /* error number */
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+
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+#endif /* _ERRNO_HEADER_ */
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