681 lines
19 KiB
C++
681 lines
19 KiB
C++
/* errno.cc: errno-related functions
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Copyright 1996, 1997, 1998, 1999, 2000, 2001 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#include "winsup.h"
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#define _REENT_ONLY
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#include <stdio.h>
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#include <errno.h>
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#include "cygerrno.h"
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#include "thread.h"
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/* Table to map Windows error codes to Errno values. */
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/* FIXME: Doing things this way is a little slow. It's trivial to change
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this into a big case statement if necessary. Left as is for now. */
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#define X(w, e) {ERROR_##w, #w, e}
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static const struct
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{
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DWORD w; /* windows version of error */
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const char *s; /* text of windows version */
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int e; /* errno version of error */
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}
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errmap[] =
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{
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/* FIXME: Some of these choices are arbitrary! */
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X (INVALID_FUNCTION, EBADRQC),
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X (FILE_NOT_FOUND, ENOENT),
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X (PATH_NOT_FOUND, ENOENT),
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X (TOO_MANY_OPEN_FILES, EMFILE),
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X (ACCESS_DENIED, EACCES),
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X (INVALID_HANDLE, EBADF),
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X (NOT_ENOUGH_MEMORY, ENOMEM),
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X (INVALID_DATA, EINVAL),
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X (OUTOFMEMORY, ENOMEM),
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X (INVALID_DRIVE, ENODEV),
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X (NOT_SAME_DEVICE, EXDEV),
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X (NO_MORE_FILES, ENMFILE),
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X (WRITE_PROTECT, EROFS),
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X (BAD_UNIT, ENODEV),
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X (SHARING_VIOLATION, EACCES),
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X (LOCK_VIOLATION, EACCES),
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X (SHARING_BUFFER_EXCEEDED, ENOLCK),
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X (HANDLE_EOF, ENODATA),
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X (HANDLE_DISK_FULL, ENOSPC),
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X (NOT_SUPPORTED, ENOSYS),
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X (REM_NOT_LIST, ENONET),
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X (DUP_NAME, ENOTUNIQ),
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X (BAD_NETPATH, ENOSHARE),
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X (BAD_NET_NAME, ENOSHARE),
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X (FILE_EXISTS, EEXIST),
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X (CANNOT_MAKE, EPERM),
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X (INVALID_PARAMETER, EINVAL),
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X (NO_PROC_SLOTS, EAGAIN),
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X (BROKEN_PIPE, EPIPE),
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X (OPEN_FAILED, EIO),
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X (NO_MORE_SEARCH_HANDLES, ENFILE),
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X (CALL_NOT_IMPLEMENTED, ENOSYS),
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X (INVALID_NAME, ENOENT),
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X (WAIT_NO_CHILDREN, ECHILD),
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X (CHILD_NOT_COMPLETE, EBUSY),
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X (DIR_NOT_EMPTY, ENOTEMPTY),
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X (SIGNAL_REFUSED, EIO),
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X (BAD_PATHNAME, ENOENT),
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X (SIGNAL_PENDING, EBUSY),
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X (MAX_THRDS_REACHED, EAGAIN),
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X (BUSY, EBUSY),
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X (ALREADY_EXISTS, EEXIST),
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X (NO_SIGNAL_SENT, EIO),
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X (FILENAME_EXCED_RANGE, EINVAL),
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X (META_EXPANSION_TOO_LONG, EINVAL),
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X (INVALID_SIGNAL_NUMBER, EINVAL),
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X (THREAD_1_INACTIVE, EINVAL),
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X (BAD_PIPE, EINVAL),
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X (PIPE_BUSY, EBUSY),
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X (NO_DATA, EPIPE),
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X (PIPE_NOT_CONNECTED, ECOMM),
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X (MORE_DATA, EAGAIN),
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X (DIRECTORY, ENOTDIR),
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X (PIPE_CONNECTED, EBUSY),
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X (PIPE_LISTENING, ECOMM),
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X (NO_TOKEN, EINVAL),
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X (PROCESS_ABORTED, EFAULT),
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X (BAD_DEVICE, ENODEV),
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X (BAD_USERNAME, EINVAL),
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X (NOT_CONNECTED, ENOLINK),
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X (OPEN_FILES, EAGAIN),
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X (ACTIVE_CONNECTIONS, EAGAIN),
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X (DEVICE_IN_USE, EAGAIN),
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X (INVALID_AT_INTERRUPT_TIME, EINTR),
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X (IO_DEVICE, EIO),
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X (NOT_OWNER, EPERM),
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X (END_OF_MEDIA, ENOSPC),
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X (EOM_OVERFLOW, ENOSPC),
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X (BEGINNING_OF_MEDIA, ESPIPE),
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X (SETMARK_DETECTED, ESPIPE),
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X (NO_DATA_DETECTED, ENOSPC),
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X (POSSIBLE_DEADLOCK, EDEADLOCK),
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X (CRC, EIO),
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X (NEGATIVE_SEEK, EINVAL),
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X (NOT_READY, ENOMEDIUM),
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X (DISK_FULL, ENOSPC),
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X (NOACCESS, EFAULT),
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X (FILE_INVALID, ENXIO),
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{ 0, NULL, 0}
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};
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int __stdcall
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geterrno_from_win_error (DWORD code, int deferrno)
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{
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for (int i = 0; errmap[i].w != 0; ++i)
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if (code == errmap[i].w)
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{
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syscall_printf ("windows error %u == errno %d", code, errmap[i].e);
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return errmap[i].e;
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}
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syscall_printf ("unknown windows error %u, setting errno to %d", code,
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deferrno);
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return deferrno; /* FIXME: what's so special about EACCESS? */
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}
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/* seterrno_from_win_error: Given a Windows error code, set errno
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as appropriate. */
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void __stdcall
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seterrno_from_win_error (const char *file, int line, DWORD code)
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{
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syscall_printf ("%s:%d errno %d", file, line, code);
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set_errno (geterrno_from_win_error (code, EACCES));
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return;
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}
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/* seterrno: Set `errno' based on GetLastError (). */
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void __stdcall
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seterrno (const char *file, int line)
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{
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seterrno_from_win_error (file, line, GetLastError ());
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}
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extern char *_user_strerror _PARAMS ((int));
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extern const char __declspec(dllexport) * const _sys_errlist[]=
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{
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/* NOERROR 0 */ "No error",
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/* EPERM 1 */ "Not super-user",
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/* ENOENT 2 */ "No such file or directory",
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/* ESRCH 3 */ "No such process",
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/* EINTR 4 */ "Interrupted system call",
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/* EIO 5 */ "I/O error",
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/* ENXIO 6 */ "No such device or address",
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/* E2BIG 7 */ "Arg list too long",
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/* ENOEXEC 8 */ "Exec format error",
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/* EBADF 9 */ "Bad file number",
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/* ECHILD 10 */ "No children",
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/* EAGAIN 11 */ "Resource temporarily unavailable",
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/* ENOMEM 12 */ "Not enough core",
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/* EACCES 13 */ "Permission denied",
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/* EFAULT 14 */ "Bad address",
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/* ENOTBLK 15 */ "Block device required",
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/* EBUSY 16 */ "Mount device busy",
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/* EEXIST 17 */ "File exists",
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/* EXDEV 18 */ "Cross-device link",
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/* ENODEV 19 */ "No such device",
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/* ENOTDIR 20 */ "Not a directory",
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/* EISDIR 21 */ "Is a directory",
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/* EINVAL 22 */ "Invalid argument",
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/* ENFILE 23 */ "Too many open files in system",
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/* EMFILE 24 */ "Too many open files",
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/* ENOTTY 25 */ "Not a typewriter",
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/* ETXTBSY 26 */ "Text file busy",
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/* EFBIG 27 */ "File too large",
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/* ENOSPC 28 */ "No space left on device",
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/* ESPIPE 29 */ "Illegal seek",
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/* EROFS 30 */ "Read only file system",
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/* EMLINK 31 */ "Too many links",
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/* EPIPE 32 */ "Broken pipe",
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/* EDOM 33 */ "Math arg out of domain of func",
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/* ERANGE 34 */ "Math result not representable",
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/* ENOMSG 35 */ "No message of desired type",
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/* EIDRM 36 */ "Identifier removed",
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/* ECHRNG 37 */ "Channel number out of range",
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/* EL2NSYNC 38 */ "Level 2 not synchronized",
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/* EL3HLT 39 */ "Level 3 halted",
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/* EL3RST 40 */ "Level 3 reset",
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/* ELNRNG 41 */ "Link number out of range",
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/* EUNATCH 42 */ "Protocol driver not attached",
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/* ENOCSI 43 */ "No CSI structure available",
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/* EL2HLT 44 */ "Level 2 halted",
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/* EDEADLK 45 */ "Deadlock condition",
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/* ENOLCK 46 */ "No record locks available",
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"47",
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"48",
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"49",
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/* EBADE 50 */ "Invalid exchange",
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/* EBADR 51 */ "Invalid request descriptor",
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/* EXFULL 52 */ "Exchange full",
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/* ENOANO 53 */ "No anode",
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/* EBADRQC 54 */ "Invalid request code",
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/* EBADSLT 55 */ "Invalid slot",
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/* EDEADLOCK 56 */ "File locking deadlock error",
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/* EBFONT 57 */ "Bad font file fmt",
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"58",
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"59",
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/* ENOSTR 60 */ "Device not a stream",
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/* ENODATA 61 */ "No data (for no delay io)",
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/* ETIME 62 */ "Timer expired",
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/* ENOSR 63 */ "Out of streams resources",
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/* ENONET 64 */ "Machine is not on the network",
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/* ENOPKG 65 */ "Package not installed",
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/* EREMOTE 66 */ "The object is remote",
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/* ENOLINK 67 */ "The link has been severed",
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/* EADV 68 */ "Advertise error",
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/* ESRMNT 69 */ "Srmount error",
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/* ECOMM 70 */ "Communication error on send",
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/* EPROTO 71 */ "Protocol error",
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"72",
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"73",
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/* EMULTIHOP 74 */ "Multihop attempted",
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/* ELBIN 75 */ "Inode is remote (not really error)",
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/* EDOTDOT 76 */ "Cross mount point (not really error)",
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/* EBADMSG 77 */ "Trying to read unreadable message",
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"78",
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"79",
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/* ENOTUNIQ 80 */ "Given log. name not unique",
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/* EBADFD 81 */ "f.d. invalid for this operation",
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/* EREMCHG 82 */ "Remote address changed",
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/* ELIBACC 83 */ "Can't access a needed shared lib",
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/* ELIBBAD 84 */ "Accessing a corrupted shared lib",
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/* ELIBSCN 85 */ ".lib section in a.out corrupted",
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/* ELIBMAX 86 */ "Attempting to link in too many libs",
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/* ELIBEXEC 87 */ "Attempting to exec a shared library",
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/* ENOSYS 88 */ "Function not implemented",
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/* ENMFILE 89 */ "No more files",
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/* ENOTEMPTY 90 */ "Directory not empty",
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/* ENAMETOOLONG 91 */ "File or path name too long",
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/* ELOOP 92 */ "Too many symbolic links",
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"93",
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"94",
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/* EOPNOTSUPP 95 */ "Operation not supported on transport endpoint",
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/* EPFNOSUPPORT 96 */ "Protocol family not supported",
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"97",
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"98",
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"99",
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"100",
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"101",
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"102",
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"103",
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/* ECONNRESET 104 */ "Connection reset by peer",
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/* ENOBUFS 105 */ "No buffer space available",
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/* EAFNOSUPPORT 106 */ "Address family not supported by protocol",
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/* EPROTOTYPE 107 */ "Protocol wrong type for transport endpoint",
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/* ENOTSOCK 108 */ "Socket operation on non-socket",
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/* ENOPROTOOPT 109 */ "Protocol not available",
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/* ESHUTDOWN 110 */ "Cannot send after transport endpoint shutdown",
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/* ECONNREFUSED 111 */ "Connection refused",
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/* EADDRINUSE 112 */ "Address already in use",
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/* ECONNABORTED 113 */ "Connection aborted",
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/* ENETUNREACH 114 */ "Network is unreachable",
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/* ENETDOWN 115 */ "Network is down",
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/* ETIMEDOUT 116 */ "Connection timed out",
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/* EHOSTDOWN 117 */ "Host is down",
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/* EHOSTUNREACH 118 */ "No route to host",
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/* EINPROGRESS 119 */ "Operation now in progress",
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/* EALREADY 120 */ "Operation already in progress",
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/* EDESTADDRREQ 121 */ "Destination address required",
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/* EMSGSIZE 122 */ "Message too long",
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/* EPROTONOSUPPORT 123 */ "Protocol not supported",
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/* ESOCKTNOSUPPORT 124 */ "Socket type not supported",
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/* EADDRNOTAVAIL 125 */ "Cannot assign requested address",
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/* ENETRESET 126 */ "Network dropped connection because of reset",
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/* EISCONN 127 */ "Transport endpoint is already connected",
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/* ENOTCONN 128 */ "Transport endpoint is not connected",
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/* ETOOMANYREFS 129 */ "Too many references: cannot splice",
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/* EPROCLIM 130 */ "Process limit exceeded",
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/* EUSERS 131 */ "Too many users",
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/* EDQUOT 132 */ "Quota exceeded",
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/* ESTALE 133 */ "Stale NFS file handle",
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/* ENOTSUP 134 */ "134",
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/* ENOMEDIUM 135 */ "no medium",
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/* ENOSHARE 136 */ "No such host or network path",
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/* ECASECLASH 137 */ "Filename exists with different case"
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};
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int __declspec(dllexport) _sys_nerr =
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sizeof (_sys_errlist) / sizeof (_sys_errlist[0]);
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/* FIXME: Why is strerror() a long switch and not just:
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return sys_errlist[errnum];
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(or moral equivalent).
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Some entries in sys_errlist[] don't match the corresponding
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entries in strerror(). This seems odd.
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*/
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/* CYGWIN internal */
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/* strerror: convert from errno values to error strings */
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extern "C" char *
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strerror (int errnum)
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{
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const char *error;
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switch (errnum)
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{
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case EPERM:
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error = "Not owner";
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break;
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case ENOENT:
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error = "No such file or directory";
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break;
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case ESRCH:
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error = "No such process";
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break;
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case EINTR:
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error = "Interrupted system call";
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break;
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case EIO:
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error = "I/O error";
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break;
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case ENXIO:
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error = "No such device or address";
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break;
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case E2BIG:
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error = "Arg list too long";
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break;
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case ENOEXEC:
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error = "Exec format error";
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break;
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case EBADF:
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error = "Bad file number";
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break;
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case ECHILD:
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error = "No children";
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break;
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case EAGAIN:
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error = "Resource temporarily unavailable";
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break;
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case ENOMEM:
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error = "Not enough memory";
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break;
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case EACCES:
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error = "Permission denied";
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break;
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case EFAULT:
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error = "Bad address";
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break;
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case ENOTBLK:
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error = "Block device required";
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break;
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case EBUSY:
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error = "Device or resource busy";
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break;
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case EEXIST:
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error = "File exists";
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break;
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case EXDEV:
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error = "Cross-device link";
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break;
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case ENODEV:
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error = "No such device";
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break;
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case ENOTDIR:
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error = "Not a directory";
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break;
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case EISDIR:
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error = "Is a directory";
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break;
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case EINVAL:
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error = "Invalid argument";
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break;
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case ENFILE:
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error = "Too many open files in system";
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break;
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case EMFILE:
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error = "Too many open files";
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break;
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case ENOTTY:
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error = "Not a character device";
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break;
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case ETXTBSY:
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error = "Text file busy";
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break;
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case EFBIG:
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error = "File too large";
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break;
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case ENOSPC:
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error = "No space left on device";
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break;
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case ESPIPE:
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error = "Illegal seek";
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break;
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case EROFS:
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error = "Read-only file system";
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break;
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case EMLINK:
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error = "Too many links";
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break;
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case EPIPE:
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error = "Broken pipe";
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break;
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case EDOM:
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error = "Math arg out of domain of func";
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break;
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case ERANGE:
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error = "Math result out of range";
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break;
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case ENOMSG:
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error = "No message of desired type";
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break;
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case EIDRM:
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error = "Identifier removed";
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break;
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case ECHRNG:
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error = "Channel number out of range";
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break;
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case EL2NSYNC:
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error = "Level 2 not synchronized";
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break;
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case EL3HLT:
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error = "Level 3 halted";
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break;
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case EL3RST:
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error = "Level 3 reset";
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break;
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case ELNRNG:
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error = "Link number out of range";
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break;
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case EUNATCH:
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error = "Protocol driver not attached";
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break;
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case ENOCSI:
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error = "No CSI structure available";
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break;
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case EL2HLT:
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error = "Level 2 halted";
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break;
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case EDEADLK:
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error = "Deadlock condition";
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break;
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case ENOLCK:
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error = "No lock";
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break;
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case EBADE:
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error = "Invalid exchange";
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break;
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case EBADR:
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error = "Invalid request descriptor";
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break;
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case EXFULL:
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error = "Exchange full";
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break;
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case ENOANO:
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error = "No anode";
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break;
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case EBADRQC:
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error = "Invalid request code";
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break;
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case EBADSLT:
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error = "Invalid slot";
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break;
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case EDEADLOCK:
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error = "File locking deadlock error";
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break;
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case EBFONT:
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error = "Bad font file fmt";
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break;
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case ENOSTR:
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error = "Not a stream";
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break;
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case ENODATA:
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error = "No data (for no delay io)";
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break;
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case ETIME:
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error = "Stream ioctl timeout";
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break;
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case ENOSR:
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error = "No stream resources";
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break;
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case ENONET:
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error = "Machine is not on the network";
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break;
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case ENOPKG:
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error = "No package";
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break;
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case EREMOTE:
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error = "Resource is remote";
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break;
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case ENOLINK:
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error = "Virtual circuit is gone";
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break;
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case EADV:
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error = "Advertise error";
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break;
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case ESRMNT:
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error = "Srmount error";
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break;
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case ECOMM:
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error = "Communication error";
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break;
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case EPROTO:
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error = "Protocol error";
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break;
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case EMULTIHOP:
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error = "Multihop attempted";
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break;
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case ELBIN:
|
|
error = "Inode is remote (not really error)";
|
|
break;
|
|
case EDOTDOT:
|
|
error = "Cross mount point (not really error)";
|
|
break;
|
|
case EBADMSG:
|
|
error = "Bad message";
|
|
break;
|
|
case ENOTUNIQ:
|
|
error = "Given log. name not unique";
|
|
break;
|
|
case EBADFD:
|
|
error = "f.d. invalid for this operation";
|
|
break;
|
|
case EREMCHG:
|
|
error = "Remote address changed";
|
|
break;
|
|
case ELIBACC:
|
|
error = "Cannot access a needed shared library";
|
|
break;
|
|
case ELIBBAD:
|
|
error = "Accessing a corrupted shared library";
|
|
break;
|
|
case ELIBSCN:
|
|
error = ".lib section in a.out corrupted";
|
|
break;
|
|
case ELIBMAX:
|
|
error = "Attempting to link in more shared libraries than system limit";
|
|
break;
|
|
case ELIBEXEC:
|
|
error = "Cannot exec a shared library directly";
|
|
break;
|
|
case ENOSYS:
|
|
error = "Function not implemented";
|
|
break;
|
|
case ENMFILE:
|
|
error = "No more files";
|
|
break;
|
|
case ENOTEMPTY:
|
|
error = "Directory not empty";
|
|
break;
|
|
case ENAMETOOLONG:
|
|
error = "File or path name too long";
|
|
break;
|
|
case ELOOP:
|
|
error = "Too many symbolic links";
|
|
break;
|
|
case EOPNOTSUPP:
|
|
error = "Operation not supported on transport endpoint";
|
|
break;
|
|
case EPFNOSUPPORT:
|
|
error = "Protocol family not supported";
|
|
break;
|
|
case ECONNRESET:
|
|
error = "Connection reset by peer";
|
|
break;
|
|
case ENOBUFS:
|
|
error = "No buffer space available; the socket cannot be connected";
|
|
break;
|
|
case EAFNOSUPPORT:
|
|
error = "Addresses in the specified family cannot be used with this socket";
|
|
break;
|
|
case EPROTOTYPE:
|
|
error = "errno EPROTOTYPE triggered";
|
|
break;
|
|
case ENOTSOCK:
|
|
error = "The descriptor is a file, not a socket";
|
|
break;
|
|
case ENOPROTOOPT:
|
|
error = "This option is unsupported";
|
|
break;
|
|
case ESHUTDOWN:
|
|
error = "errno ESHUTDOWN triggered";
|
|
break;
|
|
case ECONNREFUSED:
|
|
error = "Connection refused";
|
|
break;
|
|
case EADDRINUSE:
|
|
error = "Address already in use";
|
|
break;
|
|
case ECONNABORTED:
|
|
error = "The connection was aborted";
|
|
break;
|
|
case ENETUNREACH:
|
|
error ="The network can't be reached from this host at this time";
|
|
break;
|
|
case ENETDOWN:
|
|
error = "Network failed.";
|
|
break;
|
|
case ETIMEDOUT:
|
|
error = "Attempt to connect timed out without establishing a connection";
|
|
break;
|
|
case EHOSTDOWN:
|
|
error = "errno EHOSTDOWN triggered";
|
|
break;
|
|
case EHOSTUNREACH:
|
|
error = "errno EHOSTUNREACH triggered";
|
|
break;
|
|
case EINPROGRESS:
|
|
error = "errno EINPROGRESS triggered";
|
|
break;
|
|
case EALREADY:
|
|
error = "errno EALREADY triggered";
|
|
break;
|
|
case EDESTADDRREQ:
|
|
error = "errno EDESTADDRREQ triggered";
|
|
break;
|
|
case EMSGSIZE:
|
|
error = "errno EMSGSIZE triggered";
|
|
break;
|
|
|
|
case EPROTONOSUPPORT:
|
|
error = "errno EPROTONOSUPPORT triggered";
|
|
break;
|
|
case ESOCKTNOSUPPORT:
|
|
error = "errno ESOCKTNOSUPPORT triggered";
|
|
break;
|
|
case EADDRNOTAVAIL:
|
|
error = "errno EADDRNOTAVAIL triggered";
|
|
break;
|
|
case ENETRESET:
|
|
error = "errno ENETRESET triggered";
|
|
break;
|
|
case EISCONN:
|
|
error = "The socket is already connected";
|
|
break;
|
|
case ENOTCONN:
|
|
error = "The socket is not connected";
|
|
break;
|
|
case ETOOMANYREFS:
|
|
error = "errno ETOOMANYREFS triggered";
|
|
break;
|
|
case EPROCLIM:
|
|
error = "errno EPROCLIM triggered";
|
|
break;
|
|
case EUSERS:
|
|
error = "errno EUSERS triggered";
|
|
break;
|
|
case EDQUOT:
|
|
error = "errno EDQUOT triggered";
|
|
break;
|
|
case ESTALE:
|
|
error = "errno ESTALE triggered";
|
|
break;
|
|
case ENOTSUP:
|
|
error = "errno ENOTSUP triggered";
|
|
break;
|
|
case ENOMEDIUM:
|
|
error = "no medium";
|
|
break;
|
|
case ENOSHARE:
|
|
error = "No such host or network path";
|
|
break;
|
|
case ECASECLASH:
|
|
error = "Filename exists with different case";
|
|
break;
|
|
default:
|
|
#ifdef _MT_SAFE
|
|
char *buf= _reent_winsup()->_strerror_buf;
|
|
#else
|
|
static NO_COPY char buf[20];
|
|
#endif
|
|
__small_sprintf (buf, "error %d", errnum);
|
|
error = buf;
|
|
break;
|
|
}
|
|
|
|
/* FIXME: strerror should really be const in the appropriate newlib
|
|
include files. */
|
|
return (char *) error;
|
|
}
|