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/* errno.cc: errno-related functions
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#define _sys_nerr FOO_sys_nerr
#define sys_nerr FOOsys_nerr
#define _sys_errlist FOO_sys_errlist
#include "winsup.h"
#include <stdio.h>
#include "cygerrno.h"
#include "thread.h"
#include "cygtls.h"
#undef _sys_nerr
#undef sys_nerr
#undef _sys_errlist
/* Table to map Windows error codes to Errno values. */
/* FIXME: Doing things this way is a little slow. It's trivial to change
this into a big case statement if necessary. Left as is for now. */
#define X(w, e) {ERROR_##w, #w, e}
static NO_COPY struct
{
DWORD w; /* windows version of error */
const char *s; /* text of windows version */
int e; /* errno version of error */
} errmap[] =
{
/* FIXME: Some of these choices are arbitrary! */
X (ACCESS_DENIED, EACCES),
X (ACTIVE_CONNECTIONS, EAGAIN),
X (ALREADY_EXISTS, EEXIST),
X (BAD_DEVICE, ENODEV),
X (BAD_NETPATH, ENOSHARE),
X (BAD_NET_NAME, ENOSHARE),
X (BAD_PATHNAME, ENOENT),
X (BAD_PIPE, EINVAL),
X (BAD_UNIT, ENODEV),
X (BAD_USERNAME, EINVAL),
X (BEGINNING_OF_MEDIA, EIO),
X (BROKEN_PIPE, EPIPE),
X (BUSY, EBUSY),
X (BUS_RESET, EIO),
X (CALL_NOT_IMPLEMENTED, ENOSYS),
X (CANNOT_MAKE, EPERM),
X (CHILD_NOT_COMPLETE, EBUSY),
X (COMMITMENT_LIMIT, EAGAIN),
X (CRC, EIO),
X (DEVICE_DOOR_OPEN, EIO),
X (DEVICE_IN_USE, EAGAIN),
X (DEVICE_REQUIRES_CLEANING, EIO),
X (DIRECTORY, ENOTDIR),
X (DIR_NOT_EMPTY, ENOTEMPTY),
X (DISK_CORRUPT, EIO),
X (DISK_FULL, ENOSPC),
X (DUP_NAME, ENOTUNIQ),
X (END_OF_MEDIA, ENOSPC),
X (EOM_OVERFLOW, EIO),
X (FILEMARK_DETECTED, EIO),
X (FILENAME_EXCED_RANGE, ENAMETOOLONG),
X (FILE_EXISTS, EEXIST),
X (FILE_INVALID, ENXIO),
X (FILE_NOT_FOUND, ENOENT),
X (HANDLE_DISK_FULL, ENOSPC),
X (HANDLE_EOF, ENODATA),
X (INVALID_ADDRESS, EINVAL),
X (INVALID_AT_INTERRUPT_TIME, EINTR),
X (INVALID_BLOCK_LENGTH, EIO),
X (INVALID_DATA, EINVAL),
X (INVALID_DRIVE, ENODEV),
X (INVALID_FUNCTION, EBADRQC),
X (INVALID_HANDLE, EBADF),
X (INVALID_NAME, ENOENT),
X (INVALID_PARAMETER, EINVAL),
X (INVALID_SIGNAL_NUMBER, EINVAL),
X (IO_DEVICE, EIO),
X (IO_PENDING, EAGAIN),
X (LOCK_VIOLATION, EACCES),
X (MAX_THRDS_REACHED, EAGAIN),
X (META_EXPANSION_TOO_LONG, EINVAL),
X (MOD_NOT_FOUND, ENOENT),
X (MORE_DATA, EMSGSIZE),
X (NEGATIVE_SEEK, EINVAL),
X (NETNAME_DELETED, ENOSHARE),
X (NOACCESS, EFAULT),
X (NONPAGED_SYSTEM_RESOURCES, EAGAIN),
X (NOT_CONNECTED, ENOLINK),
X (NOT_ENOUGH_MEMORY, ENOMEM),
X (NOT_OWNER, EPERM),
X (NOT_READY, ENOMEDIUM),
X (NOT_SAME_DEVICE, EXDEV),
X (NOT_SUPPORTED, ENOSYS),
X (NO_DATA, EPIPE),
X (NO_DATA_DETECTED, EIO),
X (NO_MEDIA_IN_DRIVE, ENOMEDIUM),
X (NO_MORE_FILES, ENMFILE),
X (NO_MORE_ITEMS, ENMFILE),
X (NO_MORE_SEARCH_HANDLES, ENFILE),
X (NO_PROC_SLOTS, EAGAIN),
X (NO_SIGNAL_SENT, EIO),
X (NO_SYSTEM_RESOURCES, EAGAIN),
X (NO_TOKEN, EINVAL),
X (OPEN_FAILED, EIO),
X (OPEN_FILES, EAGAIN),
X (OUTOFMEMORY, ENOMEM),
X (PAGED_SYSTEM_RESOURCES, EAGAIN),
X (PAGEFILE_QUOTA, EAGAIN),
X (PATH_NOT_FOUND, ENOENT),
X (PIPE_BUSY, EBUSY),
X (PIPE_CONNECTED, EBUSY),
X (PIPE_LISTENING, ECOMM),
X (PIPE_NOT_CONNECTED, ECOMM),
X (POSSIBLE_DEADLOCK, EDEADLOCK),
X (PROCESS_ABORTED, EFAULT),
X (PROC_NOT_FOUND, ESRCH),
X (REM_NOT_LIST, ENONET),
X (SETMARK_DETECTED, EIO),
X (SHARING_BUFFER_EXCEEDED, ENOLCK),
X (SHARING_VIOLATION, EBUSY),
X (SIGNAL_PENDING, EBUSY),
X (SIGNAL_REFUSED, EIO),
X (THREAD_1_INACTIVE, EINVAL),
X (TOO_MANY_LINKS, EMLINK),
X (TOO_MANY_OPEN_FILES, EMFILE),
X (WAIT_NO_CHILDREN, ECHILD),
X (WORKING_SET_QUOTA, EAGAIN),
X (WRITE_PROTECT, EROFS),
X (SEEK, EINVAL),
X (SECTOR_NOT_FOUND, EINVAL),
{ 0, NULL, 0}
};
extern "C" {
const char __declspec(dllexport) * _sys_errlist[] NO_COPY_INIT =
{
/* NOERROR 0 */ "No error",
/* EPERM 1 */ "Operation not permitted",
/* ENOENT 2 */ "No such file or directory",
/* ESRCH 3 */ "No such process",
/* EINTR 4 */ "Interrupted system call",
/* EIO 5 */ "Input/Output error",
/* ENXIO 6 */ "No such device or address",
/* E2BIG 7 */ "Argument list too long",
/* ENOEXEC 8 */ "Exec format error",
/* EBADF 9 */ "Bad file descriptor",
/* ECHILD 10 */ "No child processes",
/* EAGAIN 11 */ "Resource temporarily unavailable",
/* ENOMEM 12 */ "Cannot allocate memory",
/* EACCES 13 */ "Permission denied",
/* EFAULT 14 */ "Bad address",
/* ENOTBLK 15 */ "Block device required",
/* EBUSY 16 */ "Device or resource busy",
/* EEXIST 17 */ "File exists",
/* EXDEV 18 */ "Invalid cross-device link",
/* ENODEV 19 */ "No such device",
/* ENOTDIR 20 */ "Not a directory",
/* EISDIR 21 */ "Is a directory",
/* EINVAL 22 */ "Invalid argument",
/* ENFILE 23 */ "Too many open files in system",
/* EMFILE 24 */ "Too many open files",
/* ENOTTY 25 */ "Inappropriate ioctl for device",
/* ETXTBSY 26 */ "Text file busy",
/* EFBIG 27 */ "File too large",
/* ENOSPC 28 */ "No space left on device",
/* ESPIPE 29 */ "Illegal seek",
/* EROFS 30 */ "Read-only file system",
/* EMLINK 31 */ "Too many links",
/* EPIPE 32 */ "Broken pipe",
/* EDOM 33 */ "Numerical argument out of domain",
/* ERANGE 34 */ "Numerical result out of range",
/* ENOMSG 35 */ "No message of desired type",
/* EIDRM 36 */ "Identifier removed",
/* ECHRNG 37 */ "Channel number out of range",
/* EL2NSYNC 38 */ "Level 2 not synchronized",
/* EL3HLT 39 */ "Level 3 halted",
/* EL3RST 40 */ "Level 3 reset",
/* ELNRNG 41 */ "Link number out of range",
/* EUNATCH 42 */ "Protocol driver not attached",
/* ENOCSI 43 */ "No CSI structure available",
/* EL2HLT 44 */ "Level 2 halted",
/* EDEADLK 45 */ "Resource deadlock avoided",
/* ENOLCK 46 */ "No locks available",
"error 47",
"error 48",
"error 49",
/* EBADE 50 */ "Invalid exchange",
/* EBADR 51 */ "Invalid request descriptor",
/* EXFULL 52 */ "Exchange full",
/* ENOANO 53 */ "No anode",
/* EBADRQC 54 */ "Invalid request code",
/* EBADSLT 55 */ "Invalid slot",
/* EDEADLOCK 56 */ "File locking deadlock error",
/* EBFONT 57 */ "Bad font file format",
"error 58",
"error 59",
/* ENOSTR 60 */ "Device not a stream",
/* ENODATA 61 */ "No data available",
/* ETIME 62 */ "Timer expired",
/* ENOSR 63 */ "Out of streams resources",
/* ENONET 64 */ "Machine is not on the network",
/* ENOPKG 65 */ "Package not installed",
/* EREMOTE 66 */ "Object is remote",
/* ENOLINK 67 */ "Link has been severed",
/* EADV 68 */ "Advertise error",
/* ESRMNT 69 */ "Srmount error",
/* ECOMM 70 */ "Communication error on send",
/* EPROTO 71 */ "Protocol error",
"error 72",
"error 73",
/* EMULTIHOP 74 */ "Multihop attempted",
/* ELBIN 75 */ "Inode is remote (not really error)",
/* EDOTDOT 76 */ "RFS specific error",
/* EBADMSG 77 */ "Bad message",
"error 78",
/* EFTYPE 79 */ "Inappropriate file type or format",
/* ENOTUNIQ 80 */ "Name not unique on network",
/* EBADFD 81 */ "File descriptor in bad state",
/* EREMCHG 82 */ "Remote address changed",
/* ELIBACC 83 */ "Can not access a needed shared library",
/* ELIBBAD 84 */ "Accessing a corrupted shared library",
/* ELIBSCN 85 */ ".lib section in a.out corrupted",
/* ELIBMAX 86 */ "Attempting to link in too many shared libraries",
/* ELIBEXEC 87 */ "Cannot exec a shared library directly",
/* ENOSYS 88 */ "Function not implemented",
/* ENMFILE 89 */ "No more files",
/* ENOTEMPTY 90 */ "Directory not empty",
/* ENAMETOOLONG 91 */ "File name too long",
/* ELOOP 92 */ "Too many levels of symbolic links",
"error 93",
"error 94",
/* EOPNOTSUPP 95 */ "Operation not supported",
/* EPFNOSUPPORT 96 */ "Protocol family not supported",
"error 97",
"error 98",
"error 99",
"error 100",
"error 101",
"error 102",
"error 103",
/* ECONNRESET 104 */ "Connection reset by peer",
/* ENOBUFS 105 */ "No buffer space available",
/* EAFNOSUPPORT 106 */ "Address family not supported by protocol",
/* EPROTOTYPE 107 */ "Protocol wrong type for socket",
/* ENOTSOCK 108 */ "Socket operation on non-socket",
/* ENOPROTOOPT 109 */ "Protocol not available",
/* ESHUTDOWN 110 */ "Cannot send after transport endpoint shutdown",
/* ECONNREFUSED 111 */ "Connection refused",
/* EADDRINUSE 112 */ "Address already in use",
/* ECONNABORTED 113 */ "Software caused connection abort",
/* ENETUNREACH 114 */ "Network is unreachable",
/* ENETDOWN 115 */ "Network is down",
/* ETIMEDOUT 116 */ "Connection timed out",
/* EHOSTDOWN 117 */ "Host is down",
/* EHOSTUNREACH 118 */ "No route to host",
/* EINPROGRESS 119 */ "Operation now in progress",
/* EALREADY 120 */ "Operation already in progress",
/* EDESTADDRREQ 121 */ "Destination address required",
/* EMSGSIZE 122 */ "Message too long",
/* EPROTONOSUPPORT 123 */ "Protocol not supported",
/* ESOCKTNOSUPPORT 124 */ "Socket type not supported",
/* EADDRNOTAVAIL 125 */ "Cannot assign requested address",
/* ENETRESET 126 */ "Network dropped connection on reset",
/* EISCONN 127 */ "Transport endpoint is already connected",
/* ENOTCONN 128 */ "Transport endpoint is not connected",
/* ETOOMANYREFS 129 */ "Too many references: cannot splice",
/* EPROCLIM 130 */ "Too many processes",
/* EUSERS 131 */ "Too many users",
/* EDQUOT 132 */ "Disk quota exceeded",
/* ESTALE 133 */ "Stale NFS file handle",
/* ENOTSUP 134 */ "Not supported",
/* ENOMEDIUM 135 */ "No medium found",
/* ENOSHARE 136 */ "No such host or network path",
/* ECASECLASH 137 */ "Filename exists with different case",
/* EILSEQ 138 */ "Invalid or incomplete multibyte or wide character",
/* EOVERFLOW 139 */ "Value too large for defined data type"
};
int NO_COPY_INIT _sys_nerr = sizeof (_sys_errlist) / sizeof (_sys_errlist[0]);
};
int __stdcall
geterrno_from_win_error (DWORD code, int deferrno)
{
for (int i = 0; errmap[i].w != 0; ++i)
if (code == errmap[i].w)
{
syscall_printf ("windows error %u == errno %d", code, errmap[i].e);
return errmap[i].e;
}
syscall_printf ("unknown windows error %u, setting errno to %d", code,
deferrno);
return deferrno; /* FIXME: what's so special about EACCESS? */
}
/* seterrno_from_win_error: Given a Windows error code, set errno
as appropriate. */
void __stdcall
seterrno_from_win_error (const char *file, int line, DWORD code)
{
syscall_printf ("%s:%d windows error %d", file, line, code);
set_errno (geterrno_from_win_error (code, EACCES));
}
/* seterrno: Set `errno' based on GetLastError (). */
void __stdcall
seterrno (const char *file, int line)
{
seterrno_from_win_error (file, line, GetLastError ());
}
extern char *_user_strerror _PARAMS ((int));
static char *
strerror_worker (int errnum)
{
char *res;
if (errnum >= 0 && errnum < _sys_nerr)
res = (char *) _sys_errlist [errnum];
else
res = NULL;
return res;
}
/* strerror: convert from errno values to error strings */
extern "C" char *
strerror (int errnum)
{
char *errstr = strerror_worker (errnum);
if (!errstr)
__small_sprintf (errstr = _my_tls.locals.strerror_buf, "Unknown error %u",
(unsigned) errnum);
return errstr;
}
#if 0
extern "C" int
strerror_r (int errnum, char *buf, size_t n)
{
char *errstr = strerror_worker (errnum);
if (!errstr)
return EINVAL;
if (strlen (errstr) >= n)
return ERANGE;
strcpy (buf, errstr);
return 0;
}
#endif
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