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132 lines
5.4 KiB
132 lines
5.4 KiB
/* Copyright (c) 2008, 2017, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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/**
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@file mysys/my_winerr.cc
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Convert Windows API error (GetLastError() to Posix equivalent (errno).
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The exported function my_osmaperr() is modelled after and borrows
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heavily from undocumented _dosmaperr()(found of the static Microsoft C
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runtime).
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*/
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#include <errno.h>
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#include <my_sys.h>
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#include "my_thread_local.h"
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struct errentry {
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unsigned long oscode; /* OS return value */
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int sysv_errno; /* System V error code */
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};
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static struct errentry errtable[] = {
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{ERROR_INVALID_FUNCTION, EINVAL}, /* 1 */
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{ERROR_FILE_NOT_FOUND, ENOENT}, /* 2 */
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{ERROR_PATH_NOT_FOUND, ENOENT}, /* 3 */
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{ERROR_TOO_MANY_OPEN_FILES, EMFILE}, /* 4 */
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{ERROR_ACCESS_DENIED, EACCES}, /* 5 */
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{ERROR_INVALID_HANDLE, EBADF}, /* 6 */
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{ERROR_ARENA_TRASHED, ENOMEM}, /* 7 */
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{ERROR_NOT_ENOUGH_MEMORY, ENOMEM}, /* 8 */
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{ERROR_INVALID_BLOCK, ENOMEM}, /* 9 */
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{ERROR_BAD_ENVIRONMENT, E2BIG}, /* 10 */
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{ERROR_BAD_FORMAT, ENOEXEC}, /* 11 */
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{ERROR_INVALID_ACCESS, EINVAL}, /* 12 */
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{ERROR_INVALID_DATA, EINVAL}, /* 13 */
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{ERROR_INVALID_DRIVE, ENOENT}, /* 15 */
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{ERROR_CURRENT_DIRECTORY, EACCES}, /* 16 */
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{ERROR_NOT_SAME_DEVICE, EXDEV}, /* 17 */
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{ERROR_NO_MORE_FILES, ENOENT}, /* 18 */
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{ERROR_LOCK_VIOLATION, EACCES}, /* 33 */
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{ERROR_BAD_NETPATH, ENOENT}, /* 53 */
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{ERROR_NETWORK_ACCESS_DENIED, EACCES}, /* 65 */
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{ERROR_BAD_NET_NAME, ENOENT}, /* 67 */
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{ERROR_FILE_EXISTS, EEXIST}, /* 80 */
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{ERROR_CANNOT_MAKE, EACCES}, /* 82 */
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{ERROR_FAIL_I24, EACCES}, /* 83 */
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{ERROR_INVALID_PARAMETER, EINVAL}, /* 87 */
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{ERROR_NO_PROC_SLOTS, EAGAIN}, /* 89 */
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{ERROR_DRIVE_LOCKED, EACCES}, /* 108 */
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{ERROR_BROKEN_PIPE, EPIPE}, /* 109 */
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{ERROR_DISK_FULL, ENOSPC}, /* 112 */
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{ERROR_INVALID_TARGET_HANDLE, EBADF}, /* 114 */
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{ERROR_INVALID_NAME, ENOENT}, /* 123 */
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{ERROR_INVALID_HANDLE, EINVAL}, /* 124 */
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{ERROR_WAIT_NO_CHILDREN, ECHILD}, /* 128 */
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{ERROR_CHILD_NOT_COMPLETE, ECHILD}, /* 129 */
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{ERROR_DIRECT_ACCESS_HANDLE, EBADF}, /* 130 */
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{ERROR_NEGATIVE_SEEK, EINVAL}, /* 131 */
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{ERROR_SEEK_ON_DEVICE, EACCES}, /* 132 */
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{ERROR_DIR_NOT_EMPTY, ENOTEMPTY}, /* 145 */
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{ERROR_NOT_LOCKED, EACCES}, /* 158 */
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{ERROR_BAD_PATHNAME, ENOENT}, /* 161 */
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{ERROR_MAX_THRDS_REACHED, EAGAIN}, /* 164 */
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{ERROR_LOCK_FAILED, EACCES}, /* 167 */
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{ERROR_ALREADY_EXISTS, EEXIST}, /* 183 */
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{ERROR_FILENAME_EXCED_RANGE, ENOENT}, /* 206 */
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{ERROR_NESTING_NOT_ALLOWED, EAGAIN}, /* 215 */
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{ERROR_NOT_ENOUGH_QUOTA, ENOMEM} /* 1816 */
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};
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/* size of the table */
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#define ERRTABLESIZE (sizeof(errtable) / sizeof(errtable[0]))
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/* The following two constants must be the minimum and maximum
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values in the (contiguous) range of Exec Failure errors. */
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#define MIN_EXEC_ERROR ERROR_INVALID_STARTING_CODESEG
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#define MAX_EXEC_ERROR ERROR_INFLOOP_IN_RELOC_CHAIN
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/* These are the low and high value in the range of errors that are
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access violations */
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#define MIN_EACCES_RANGE ERROR_WRITE_PROTECT
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#define MAX_EACCES_RANGE ERROR_SHARING_BUFFER_EXCEEDED
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static int get_errno_from_oserr(unsigned long oserrno) {
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int i;
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/* check the table for the OS error code */
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for (i = 0; i < ERRTABLESIZE; ++i) {
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if (oserrno == errtable[i].oscode) {
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return errtable[i].sysv_errno;
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}
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}
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/* The error code wasn't in the table. We check for a range of */
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/* EACCES errors or exec failure errors (ENOEXEC). Otherwise */
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/* EINVAL is returned. */
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if (oserrno >= MIN_EACCES_RANGE && oserrno <= MAX_EACCES_RANGE)
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return EACCES;
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else if (oserrno >= MIN_EXEC_ERROR && oserrno <= MAX_EXEC_ERROR)
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return ENOEXEC;
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else
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return EINVAL;
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}
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/* Set errno corresponsing to GetLastError() value */
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void my_osmaperr(unsigned long oserrno) {
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/*
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set thr_winerr so that we could return the Windows Error Code
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when it is EINVAL.
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*/
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set_thr_winerr(oserrno);
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errno = get_errno_from_oserr(oserrno);
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}
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