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-rw-r--r--mysys/my_winerr.c126
1 files changed, 126 insertions, 0 deletions
diff --git a/mysys/my_winerr.c b/mysys/my_winerr.c
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--- /dev/null
+++ b/mysys/my_winerr.c
@@ -0,0 +1,126 @@
+/* Copyright (c) 2008 MySQL AB, 2009 Sun Microsystems, Inc.
+ Use is subject to license terms.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; version 2 of the License.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
+
+/*
+ Convert Windows API error (GetLastError() to Posix equivalent (errno)
+ The exported function my_osmaperr() is modelled after and borrows
+ heavily from undocumented _dosmaperr()(found of the static Microsoft C runtime).
+*/
+
+#include <my_global.h>
+#include <my_sys.h>
+
+
+struct errentry
+{
+ unsigned long oscode; /* OS return value */
+ int sysv_errno; /* System V error code */
+};
+
+static struct errentry errtable[]= {
+ { ERROR_INVALID_FUNCTION, EINVAL }, /* 1 */
+ { ERROR_FILE_NOT_FOUND, ENOENT }, /* 2 */
+ { ERROR_PATH_NOT_FOUND, ENOENT }, /* 3 */
+ { ERROR_TOO_MANY_OPEN_FILES, EMFILE }, /* 4 */
+ { ERROR_ACCESS_DENIED, EACCES }, /* 5 */
+ { ERROR_INVALID_HANDLE, EBADF }, /* 6 */
+ { ERROR_ARENA_TRASHED, ENOMEM }, /* 7 */
+ { ERROR_NOT_ENOUGH_MEMORY, ENOMEM }, /* 8 */
+ { ERROR_INVALID_BLOCK, ENOMEM }, /* 9 */
+ { ERROR_BAD_ENVIRONMENT, E2BIG }, /* 10 */
+ { ERROR_BAD_FORMAT, ENOEXEC }, /* 11 */
+ { ERROR_INVALID_ACCESS, EINVAL }, /* 12 */
+ { ERROR_INVALID_DATA, EINVAL }, /* 13 */
+ { ERROR_INVALID_DRIVE, ENOENT }, /* 15 */
+ { ERROR_CURRENT_DIRECTORY, EACCES }, /* 16 */
+ { ERROR_NOT_SAME_DEVICE, EXDEV }, /* 17 */
+ { ERROR_NO_MORE_FILES, ENOENT }, /* 18 */
+ { ERROR_LOCK_VIOLATION, EACCES }, /* 33 */
+ { ERROR_BAD_NETPATH, ENOENT }, /* 53 */
+ { ERROR_NETWORK_ACCESS_DENIED, EACCES }, /* 65 */
+ { ERROR_BAD_NET_NAME, ENOENT }, /* 67 */
+ { ERROR_FILE_EXISTS, EEXIST }, /* 80 */
+ { ERROR_CANNOT_MAKE, EACCES }, /* 82 */
+ { ERROR_FAIL_I24, EACCES }, /* 83 */
+ { ERROR_INVALID_PARAMETER, EINVAL }, /* 87 */
+ { ERROR_NO_PROC_SLOTS, EAGAIN }, /* 89 */
+ { ERROR_DRIVE_LOCKED, EACCES }, /* 108 */
+ { ERROR_BROKEN_PIPE, EPIPE }, /* 109 */
+ { ERROR_DISK_FULL, ENOSPC }, /* 112 */
+ { ERROR_INVALID_TARGET_HANDLE, EBADF }, /* 114 */
+ { ERROR_INVALID_HANDLE, EINVAL }, /* 124 */
+ { ERROR_WAIT_NO_CHILDREN, ECHILD }, /* 128 */
+ { ERROR_CHILD_NOT_COMPLETE, ECHILD }, /* 129 */
+ { ERROR_DIRECT_ACCESS_HANDLE, EBADF }, /* 130 */
+ { ERROR_NEGATIVE_SEEK, EINVAL }, /* 131 */
+ { ERROR_SEEK_ON_DEVICE, EACCES }, /* 132 */
+ { ERROR_DIR_NOT_EMPTY, ENOTEMPTY }, /* 145 */
+ { ERROR_NOT_LOCKED, EACCES }, /* 158 */
+ { ERROR_BAD_PATHNAME, ENOENT }, /* 161 */
+ { ERROR_MAX_THRDS_REACHED, EAGAIN }, /* 164 */
+ { ERROR_LOCK_FAILED, EACCES }, /* 167 */
+ { ERROR_ALREADY_EXISTS, EEXIST }, /* 183 */
+ { ERROR_FILENAME_EXCED_RANGE, ENOENT }, /* 206 */
+ { ERROR_NESTING_NOT_ALLOWED, EAGAIN }, /* 215 */
+ { ERROR_FILE_SYSTEM_LIMITATION, EFBIG }, /* 665 */
+ { ERROR_NO_SYSTEM_RESOURCES, ENOMEM }, /* 1450 */
+ { ERROR_NOT_ENOUGH_QUOTA, ENOMEM } /* 1816 */
+};
+
+/* size of the table */
+#define ERRTABLESIZE (sizeof(errtable)/sizeof(errtable[0]))
+
+/* The following two constants must be the minimum and maximum
+values in the (contiguous) range of Exec Failure errors. */
+#define MIN_EXEC_ERROR ERROR_INVALID_STARTING_CODESEG
+#define MAX_EXEC_ERROR ERROR_INFLOOP_IN_RELOC_CHAIN
+
+/* These are the low and high value in the range of errors that are
+access violations */
+#define MIN_EACCES_RANGE ERROR_WRITE_PROTECT
+#define MAX_EACCES_RANGE ERROR_SHARING_BUFFER_EXCEEDED
+
+
+static int get_errno_from_oserr(unsigned long oserrno)
+{
+ size_t i;
+
+ /* check the table for the OS error code */
+ for (i= 0; i < ERRTABLESIZE; ++i)
+ {
+ if (oserrno == errtable[i].oscode)
+ {
+ return errtable[i].sysv_errno;
+ }
+ }
+
+ /* The error code wasn't in the table. We check for a range of */
+ /* EACCES errors or exec failure errors (ENOEXEC). Otherwise */
+ /* EINVAL is returned. */
+
+ if (oserrno >= MIN_EACCES_RANGE && oserrno <= MAX_EACCES_RANGE)
+ return EACCES;
+ else if (oserrno >= MIN_EXEC_ERROR && oserrno <= MAX_EXEC_ERROR)
+ return ENOEXEC;
+ else
+ return EINVAL;
+}
+
+/* Set errno corresponding to GetLastError() value */
+void my_osmaperr ( unsigned long oserrno)
+{
+ errno= get_errno_from_oserr(oserrno);
+}