Use a default error-mapping function.

This work is contributed by Nelson Bolyard <nelsonb@netscape.com>.

1 files changed, 355 insertions, 1055 deletions

diff --git a/pr/src/md/windows/win32_errors.c b/pr/src/md/windows/win32_errors.c
index 1899a1be..6432577e 100644
--- a/pr/src/md/windows/win32_errors.c
+++ b/pr/src/md/windows/win32_errors.c
@@ -4,12 +4,12 @@
  * Version 1.0 (the "NPL"); you may not use this file except in
  * compliance with the NPL.  You may obtain a copy of the NPL at
  * http://www.mozilla.org/NPL/
- * 
+ *
  * Software distributed under the NPL is distributed on an "AS IS" basis,
  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
  * for the specific language governing rights and limitations under the
  * NPL.
- * 
+ *
  * The Initial Developer of this code under the NPL is Netscape
  * Communications Corporation.  Portions created by Netscape are
  * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
@@ -26,6 +26,12 @@
  * - GetLastError(): for Win32 functions
  * - WSAGetLastError(): for Winsock functions
  * - errno: for standard C library functions
+ * 
+ * GetLastError() and WSAGetLastError() return error codes in
+ * non-overlapping ranges, so their error codes (ERROR_* and
+ * WSAE*) can be mapped by the same function.  On the other hand,
+ * errno and GetLastError() have overlapping ranges, so we need
+ * to use a separate function to map errno.
  *
  * We do not check for WSAEINPROGRESS and WSAEINTR because we do not
  * use blocking Winsock 1.1 calls.
@@ -35,524 +41,303 @@
  * be detected at the time we create new sockets.
  */
 
+static void _MD_win32_map_default_errno(PRInt32 err)
+{
+    PRErrorCode prError;
+
+    switch (err) {
+        case EACCES:
+            prError = PR_NO_ACCESS_RIGHTS_ERROR;
+            break;
+        case ENOENT:
+            prError = PR_FILE_NOT_FOUND_ERROR;
+            break;
+        default:
+            prError = PR_UNKNOWN_ERROR;
+            break;
+    }
+    PR_SetError(prError, err);
+}
+
+static void _MD_win32_map_default_error(PRInt32 err)
+{
+    PRErrorCode prError;
+
+    switch (err) {
+        case ERROR_ACCESS_DENIED:
+            prError = PR_NO_ACCESS_RIGHTS_ERROR;
+            break;
+        case ERROR_ALREADY_EXISTS:
+            prError = PR_FILE_EXISTS_ERROR;
+            break;
+        case ERROR_DISK_CORRUPT:
+            prError = PR_IO_ERROR; 
+            break;
+        case ERROR_DISK_FULL:
+            prError = PR_NO_DEVICE_SPACE_ERROR;
+            break;
+        case ERROR_DISK_OPERATION_FAILED:
+            prError = PR_IO_ERROR;
+            break;
+        case ERROR_DRIVE_LOCKED:
+            prError = PR_FILE_IS_LOCKED_ERROR;
+            break;
+        case ERROR_FILENAME_EXCED_RANGE:
+            prError = PR_NAME_TOO_LONG_ERROR;
+            break;
+        case ERROR_FILE_CORRUPT:
+            prError = PR_IO_ERROR;
+            break;
+        case ERROR_FILE_EXISTS:
+            prError = PR_FILE_EXISTS_ERROR;
+            break;
+        case ERROR_FILE_INVALID:
+            prError = PR_BAD_DESCRIPTOR_ERROR;
+            break;
+        case ERROR_FILE_NOT_FOUND:
+            prError = PR_FILE_NOT_FOUND_ERROR;
+            break;
+        case ERROR_HANDLE_DISK_FULL:
+            prError = PR_NO_DEVICE_SPACE_ERROR;
+            break;
+        case ERROR_INVALID_ADDRESS:
+            prError = PR_ACCESS_FAULT_ERROR;
+            break;
+        case ERROR_INVALID_HANDLE:
+            prError = PR_BAD_DESCRIPTOR_ERROR;
+            break;
+        case ERROR_INVALID_NAME:
+            prError = PR_INVALID_ARGUMENT_ERROR;
+            break;
+        case ERROR_INVALID_PARAMETER:
+            prError = PR_INVALID_ARGUMENT_ERROR;
+            break;
+        case ERROR_INVALID_USER_BUFFER:
+            prError = PR_INSUFFICIENT_RESOURCES_ERROR;
+            break;
+        case ERROR_LOCKED:
+            prError = PR_FILE_IS_LOCKED_ERROR;
+            break;
+        case ERROR_NETNAME_DELETED:
+            prError = PR_CONNECT_RESET_ERROR;
+            break;
+        case ERROR_NOACCESS:
+            prError = PR_ACCESS_FAULT_ERROR;
+            break;
+        case ERROR_NOT_ENOUGH_MEMORY:
+            prError = PR_INSUFFICIENT_RESOURCES_ERROR;
+            break;
+        case ERROR_NOT_ENOUGH_QUOTA:
+            prError = PR_OUT_OF_MEMORY_ERROR;
+            break;
+        case ERROR_NOT_READY:
+            prError = PR_IO_ERROR;
+            break;
+        case ERROR_NO_MORE_FILES:
+            prError = PR_NO_MORE_FILES_ERROR;
+            break;
+        case ERROR_OPEN_FAILED:
+            prError = PR_IO_ERROR;
+            break;
+        case ERROR_OPEN_FILES:
+            prError = PR_IO_ERROR;
+            break;
+        case ERROR_OUTOFMEMORY:
+            prError = PR_INSUFFICIENT_RESOURCES_ERROR;
+            break;
+        case ERROR_PATH_BUSY:
+            prError = PR_IO_ERROR;
+            break;
+        case ERROR_PATH_NOT_FOUND:
+            prError = PR_FILE_NOT_FOUND_ERROR;
+            break;
+        case ERROR_SEEK_ON_DEVICE:
+            prError = PR_IO_ERROR;
+            break;
+        case ERROR_SHARING_VIOLATION:
+            prError = PR_FILE_IS_BUSY_ERROR;
+            break;
+        case ERROR_STACK_OVERFLOW:
+            prError = PR_ACCESS_FAULT_ERROR;
+            break;
+        case ERROR_TOO_MANY_OPEN_FILES:
+            prError = PR_SYS_DESC_TABLE_FULL_ERROR;
+            break;
+        case ERROR_WRITE_PROTECT:
+            prError = PR_NO_ACCESS_RIGHTS_ERROR;
+            break;
+        case WSAEACCES:
+            prError = PR_NO_ACCESS_RIGHTS_ERROR;
+            break;
+        case WSAEADDRINUSE:
+            prError = PR_ADDRESS_IN_USE_ERROR;
+            break;
+        case WSAEADDRNOTAVAIL:
+            prError = PR_ADDRESS_NOT_AVAILABLE_ERROR;
+            break;
+        case WSAEAFNOSUPPORT:
+            prError = PR_ADDRESS_NOT_SUPPORTED_ERROR;
+            break;
+        case WSAEALREADY:
+            prError = PR_ALREADY_INITIATED_ERROR;
+            break;
+        case WSAEBADF:
+            prError = PR_BAD_DESCRIPTOR_ERROR;
+            break;
+        case WSAECONNABORTED:
+            prError = PR_CONNECT_ABORTED_ERROR;
+            break;
+        case WSAECONNREFUSED:
+            prError = PR_CONNECT_REFUSED_ERROR;
+            break;
+        case WSAECONNRESET:
+            prError = PR_CONNECT_RESET_ERROR;
+            break;
+        case WSAEDESTADDRREQ:
+            prError = PR_INVALID_ARGUMENT_ERROR;
+            break;
+        case WSAEFAULT:
+            prError = PR_ACCESS_FAULT_ERROR;
+            break;
+        case WSAEHOSTUNREACH:
+            prError = PR_HOST_UNREACHABLE_ERROR;
+            break;
+        case WSAEINVAL:
+            prError = PR_INVALID_ARGUMENT_ERROR;
+            break;
+        case WSAEISCONN:
+            prError = PR_IS_CONNECTED_ERROR;
+            break;
+        case WSAEMFILE:
+            prError = PR_PROC_DESC_TABLE_FULL_ERROR;
+            break;
+        case WSAEMSGSIZE:
+            prError = PR_BUFFER_OVERFLOW_ERROR;
+            break;
+        case WSAENETDOWN:
+            prError = PR_NETWORK_DOWN_ERROR;
+            break;
+        case WSAENETRESET:
+            prError = PR_CONNECT_ABORTED_ERROR;
+            break;
+        case WSAENETUNREACH:
+            prError = PR_NETWORK_UNREACHABLE_ERROR;
+            break;
+        case WSAENOBUFS:
+            prError = PR_INSUFFICIENT_RESOURCES_ERROR;
+            break;
+        case WSAENOPROTOOPT:
+            prError = PR_INVALID_ARGUMENT_ERROR;
+            break;
+        case WSAENOTCONN:
+            prError = PR_NOT_CONNECTED_ERROR;
+            break;
+        case WSAENOTSOCK:
+            prError = PR_NOT_SOCKET_ERROR;
+            break;
+        case WSAEOPNOTSUPP:
+            prError = PR_OPERATION_NOT_SUPPORTED_ERROR;
+            break;
+        case WSAEPROTONOSUPPORT:
+            prError = PR_PROTOCOL_NOT_SUPPORTED_ERROR;
+            break;
+        case WSAEPROTOTYPE:
+            prError = PR_INVALID_ARGUMENT_ERROR;
+            break;
+        case WSAESHUTDOWN:
+            prError = PR_SOCKET_SHUTDOWN_ERROR;
+            break;
+        case WSAESOCKTNOSUPPORT:
+            prError = PR_INVALID_ARGUMENT_ERROR;
+            break;
+        case WSAETIMEDOUT:
+            prError = PR_CONNECT_ABORTED_ERROR;
+            break;
+        case WSAEWOULDBLOCK:
+            prError = PR_WOULD_BLOCK_ERROR;
+            break;
+        default:
+            prError = PR_UNKNOWN_ERROR;
+            break;
+    }
+    PR_SetError(prError, err);
+}
+
 void _MD_win32_map_opendir_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_FILE_NOT_FOUND:
-		case ERROR_PATH_NOT_FOUND:
-			PR_SetError(PR_FILE_NOT_FOUND_ERROR, err);
-			break;
-		case ERROR_ACCESS_DENIED:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case ERROR_INVALID_ADDRESS:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_INVALID_NAME:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		case ERROR_DISK_CORRUPT:
-		case ERROR_DISK_OPERATION_FAILED:
-		case ERROR_FILE_CORRUPT:
-		case ERROR_NOT_READY:
-		case ERROR_OPEN_FAILED:
-		case ERROR_OPEN_FILES:
-		case ERROR_PATH_BUSY:
-			PR_SetError(PR_IO_ERROR, err);
-			break;
-		case ERROR_DRIVE_LOCKED:
-			PR_SetError(PR_FILE_IS_LOCKED_ERROR, err);
-			break;
-		case ERROR_FILENAME_EXCED_RANGE:
-			PR_SetError(PR_NAME_TOO_LONG_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_closedir_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_FILE_INVALID:
-		case ERROR_INVALID_HANDLE:
-			PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_unix_readdir_error(PRInt32 err)
 {
-
-	switch (err) {
-		case ERROR_NO_MORE_FILES:
-			PR_SetError(PR_NO_MORE_FILES_ERROR, err);
-			break;
-		case ERROR_FILE_INVALID:
-		case ERROR_INVALID_HANDLE:
-			PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err);
-			break;
-		case ERROR_INVALID_ADDRESS:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_DISK_CORRUPT:
-		case ERROR_DISK_OPERATION_FAILED:
-		case ERROR_FILE_CORRUPT:
-		case ERROR_NOT_READY:
-		case ERROR_PATH_BUSY:
-			PR_SetError(PR_IO_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_delete_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_FILE_NOT_FOUND:
-		case ERROR_PATH_NOT_FOUND:
-			PR_SetError(PR_FILE_NOT_FOUND_ERROR, err);
-			break;
-		case ERROR_ACCESS_DENIED:
-		case ERROR_WRITE_PROTECT:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case ERROR_INVALID_ADDRESS:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_DRIVE_LOCKED:
-		case ERROR_LOCKED:
-			PR_SetError(PR_FILE_IS_LOCKED_ERROR, err);
-			break;
-		case ERROR_SHARING_VIOLATION:
-			PR_SetError(PR_FILE_IS_BUSY_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 /* The error code for stat() is in errno. */
 void _MD_win32_map_stat_error(PRInt32 err)
 {
-    switch (err) {
-        case ENOENT:
-            PR_SetError(PR_FILE_NOT_FOUND_ERROR, err);
-            break;
-        case EACCES:
-            PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-            break;
-        default:
-            PR_SetError(PR_UNKNOWN_ERROR, err);
-    }
+    _MD_win32_map_default_errno(err);
 }
 
 void _MD_win32_map_fstat_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_ACCESS_DENIED:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case ERROR_FILE_INVALID:
-		case ERROR_INVALID_HANDLE:
-			PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err);
-			break;
-		case ERROR_INVALID_ADDRESS:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_DISK_CORRUPT:
-		case ERROR_DISK_OPERATION_FAILED:
-		case ERROR_FILE_CORRUPT:
-		case ERROR_NOT_READY:
-		case ERROR_PATH_BUSY:
-			PR_SetError(PR_IO_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case ERROR_DRIVE_LOCKED:
-		case ERROR_LOCKED:
-			PR_SetError(PR_FILE_IS_LOCKED_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_rename_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_FILE_NOT_FOUND:
-		case ERROR_PATH_NOT_FOUND:
-			PR_SetError(PR_FILE_NOT_FOUND_ERROR, err);
-			break;
-		case ERROR_ACCESS_DENIED:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case ERROR_INVALID_ADDRESS:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_INVALID_NAME:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		case ERROR_DISK_CORRUPT:
-		case ERROR_DISK_OPERATION_FAILED:
-		case ERROR_FILE_CORRUPT:
-		case ERROR_NOT_READY:
-		case ERROR_PATH_BUSY:
-			PR_SetError(PR_IO_ERROR, err);
-			break;
-		case ERROR_DRIVE_LOCKED:
-			PR_SetError(PR_FILE_IS_LOCKED_ERROR, err);
-			break;
-		case ERROR_FILENAME_EXCED_RANGE:
-			PR_SetError(PR_NAME_TOO_LONG_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case ERROR_ALREADY_EXISTS:
-		case ERROR_FILE_EXISTS:
-			PR_SetError(PR_FILE_EXISTS_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 /* The error code for access() is in errno. */
 void _MD_win32_map_access_error(PRInt32 err)
 {
-    switch (err) {
-        case ENOENT:
-            PR_SetError(PR_FILE_NOT_FOUND_ERROR, err);
-            break;
-        case EACCES:
-            PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-            break;
-        default:
-            PR_SetError(PR_UNKNOWN_ERROR, err);
-    }
+    _MD_win32_map_default_errno(err);
 }
 
 void _MD_win32_map_mkdir_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_ALREADY_EXISTS:
-		case ERROR_FILE_EXISTS:
-			PR_SetError(PR_FILE_EXISTS_ERROR, err);
-			break;
-		case ERROR_FILE_NOT_FOUND:
-			PR_SetError(PR_FILE_NOT_FOUND_ERROR, err);
-			break;
-		case ERROR_ACCESS_DENIED:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case ERROR_INVALID_ADDRESS:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_INVALID_NAME:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		case ERROR_DISK_CORRUPT:
-		case ERROR_DISK_OPERATION_FAILED:
-		case ERROR_FILE_CORRUPT:
-		case ERROR_NOT_READY:
-		case ERROR_PATH_BUSY:
-			PR_SetError(PR_IO_ERROR, err);
-			break;
-		case ERROR_DRIVE_LOCKED:
-			PR_SetError(PR_FILE_IS_LOCKED_ERROR, err);
-			break;
-		case ERROR_FILENAME_EXCED_RANGE:
-			PR_SetError(PR_NAME_TOO_LONG_ERROR, err);
-			break;
-		case ERROR_TOO_MANY_OPEN_FILES:
-			PR_SetError(PR_SYS_DESC_TABLE_FULL_ERROR, err);
-			break;
-		case ERROR_PATH_NOT_FOUND:
-			PR_SetError(PR_FILE_NOT_FOUND_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case ERROR_DISK_FULL:
-		case ERROR_HANDLE_DISK_FULL:
-			PR_SetError(PR_NO_DEVICE_SPACE_ERROR, err);
-			break;
-		case ERROR_WRITE_PROTECT:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_rmdir_error(PRInt32 err)
 {
-
-	switch (err) {
-		case ERROR_FILE_NOT_FOUND:
-			PR_SetError(PR_FILE_NOT_FOUND_ERROR, err);
-			break;
-		case ERROR_ACCESS_DENIED:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case ERROR_INVALID_ADDRESS:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_INVALID_NAME:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		case ERROR_DISK_CORRUPT:
-		case ERROR_DISK_OPERATION_FAILED:
-		case ERROR_FILE_CORRUPT:
-		case ERROR_NOT_READY:
-		case ERROR_PATH_BUSY:
-			PR_SetError(PR_IO_ERROR, err);
-			break;
-		case ERROR_DRIVE_LOCKED:
-			PR_SetError(PR_FILE_IS_LOCKED_ERROR, err);
-			break;
-		case ERROR_FILENAME_EXCED_RANGE:
-			PR_SetError(PR_NAME_TOO_LONG_ERROR, err);
-			break;
-		case ERROR_TOO_MANY_OPEN_FILES:
-			PR_SetError(PR_SYS_DESC_TABLE_FULL_ERROR, err);
-			break;
-		case ERROR_PATH_NOT_FOUND:
-			PR_SetError(PR_FILE_NOT_FOUND_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case ERROR_WRITE_PROTECT:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_read_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_ACCESS_DENIED:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case ERROR_FILE_INVALID:
-		case ERROR_INVALID_HANDLE:
-			PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err);
-			break;
-                case ERROR_NOACCESS:
-		case ERROR_INVALID_ADDRESS:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_DISK_CORRUPT:
-		case ERROR_DISK_OPERATION_FAILED:
-		case ERROR_FILE_CORRUPT:
-		case ERROR_NOT_READY:
-		case ERROR_PATH_BUSY:
-			PR_SetError(PR_IO_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-		case ERROR_INVALID_USER_BUFFER:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_QUOTA:
-			PR_SetError(PR_OUT_OF_MEMORY_ERROR, err);
-			break;
-		case ERROR_DRIVE_LOCKED:
-		case ERROR_LOCKED:
-			PR_SetError(PR_FILE_IS_LOCKED_ERROR, err);
-			break;
-		case ERROR_SHARING_VIOLATION:
-			PR_SetError(PR_FILE_IS_BUSY_ERROR, err);
-			break;
-		case ERROR_NETNAME_DELETED:
-			PR_SetError(PR_CONNECT_RESET_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_transmitfile_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_ACCESS_DENIED:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case ERROR_FILE_INVALID:
-		case ERROR_INVALID_HANDLE:
-			PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err);
-			break;
-		case ERROR_INVALID_ADDRESS:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_DISK_CORRUPT:
-		case ERROR_DISK_OPERATION_FAILED:
-		case ERROR_FILE_CORRUPT:
-		case ERROR_NOT_READY:
-		case ERROR_PATH_BUSY:
-			PR_SetError(PR_IO_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-		case ERROR_INVALID_USER_BUFFER:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_QUOTA:
-			PR_SetError(PR_OUT_OF_MEMORY_ERROR, err);
-			break;
-		case ERROR_DRIVE_LOCKED:
-		case ERROR_LOCKED:
-			PR_SetError(PR_FILE_IS_LOCKED_ERROR, err);
-			break;
-		case ERROR_SHARING_VIOLATION:
-			PR_SetError(PR_FILE_IS_BUSY_ERROR, err);
-			break;
-		case ERROR_FILENAME_EXCED_RANGE:
-			PR_SetError(PR_NAME_TOO_LONG_ERROR, err);
-			break;
-		case ERROR_TOO_MANY_OPEN_FILES:
-			PR_SetError(PR_SYS_DESC_TABLE_FULL_ERROR, err);
-			break;
-		case ERROR_PATH_NOT_FOUND:
-			PR_SetError(PR_FILE_NOT_FOUND_ERROR, err);
-			break;
-		case WSAEBADF:
-			PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err);
-			break;
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_write_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_ACCESS_DENIED:
-		case ERROR_WRITE_PROTECT:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case ERROR_FILE_INVALID:
-		case ERROR_INVALID_HANDLE:
-			PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err);
-			break;
-		case ERROR_INVALID_ADDRESS:
-		case ERROR_STACK_OVERFLOW:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_INVALID_PARAMETER:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		case ERROR_DISK_CORRUPT:
-		case ERROR_DISK_OPERATION_FAILED:
-		case ERROR_FILE_CORRUPT:
-		case ERROR_NOT_READY:
-		case ERROR_PATH_BUSY:
-			PR_SetError(PR_IO_ERROR, err);
-			break;
-		case ERROR_DRIVE_LOCKED:
-		case ERROR_LOCKED:
-			PR_SetError(PR_FILE_IS_LOCKED_ERROR, err);
-			break;
-		case ERROR_SHARING_VIOLATION:
-			PR_SetError(PR_FILE_IS_BUSY_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-		case ERROR_INVALID_USER_BUFFER:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_QUOTA:
-			PR_SetError(PR_OUT_OF_MEMORY_ERROR, err);
-			break;
-		case ERROR_DISK_FULL:
-		case ERROR_HANDLE_DISK_FULL:
-			PR_SetError(PR_NO_DEVICE_SPACE_ERROR, err);
-			break;
-		case ERROR_NETNAME_DELETED:
-			PR_SetError(PR_CONNECT_RESET_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_lseek_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_FILE_INVALID:
-		case ERROR_INVALID_HANDLE:
-			PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err);
-			break;
-		case ERROR_SEEK_ON_DEVICE:
-			PR_SetError(PR_IO_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_fsync_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_ACCESS_DENIED:
-		case ERROR_WRITE_PROTECT:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case ERROR_FILE_INVALID:
-		case ERROR_INVALID_HANDLE:
-			PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case ERROR_DISK_FULL:
-		case ERROR_HANDLE_DISK_FULL:
-			PR_SetError(PR_NO_DEVICE_SPACE_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 /*
@@ -560,681 +345,196 @@ void _MD_win32_map_fsync_error(PRInt32 err)
  */
 void _MD_win32_map_close_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_FILE_INVALID:
-		case ERROR_INVALID_HANDLE:
-		case WSAEBADF:
-			PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err);
-			break;
-		case ERROR_DISK_OPERATION_FAILED:
-		case ERROR_NOT_READY:
-		case ERROR_PATH_BUSY:
-			PR_SetError(PR_IO_ERROR, err);
-			break;
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAEWOULDBLOCK:
-			PR_SetError(PR_WOULD_BLOCK_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_socket_error(PRInt32 err)
 {
-	PR_ASSERT(err != WSANOTINITIALISED);
-	switch (err) {
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAEPROTONOSUPPORT:
-			PR_SetError(PR_PROTOCOL_NOT_SUPPORTED_ERROR, err);
-			break;
-		case WSAEACCES:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case WSAEMFILE:
-			PR_SetError(PR_PROC_DESC_TABLE_FULL_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-		case WSAENOBUFS:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case WSAEAFNOSUPPORT:
-			PR_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR, err);
-			break;
-		case WSAEPROTOTYPE:
-		case WSAESOCKTNOSUPPORT:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    PR_ASSERT(err != WSANOTINITIALISED);
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_recv_error(PRInt32 err)
 {
-	switch (err) {
-		case WSAEWOULDBLOCK:
-			PR_SetError(PR_WOULD_BLOCK_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case WSAENOTCONN:
-			PR_SetError(PR_NOT_CONNECTED_ERROR, err);
-			break;
-		case WSAESHUTDOWN:
-			PR_SetError(PR_SOCKET_SHUTDOWN_ERROR, err);
-			break;
-		case WSAEMSGSIZE:
-			PR_SetError(PR_BUFFER_OVERFLOW_ERROR, err);
-			break;
-		case WSAECONNRESET:
-		case ERROR_NETNAME_DELETED:
-			PR_SetError(PR_CONNECT_RESET_ERROR, err);
-			break;
-		case WSAEINVAL:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		case WSAECONNABORTED:
-		case WSAETIMEDOUT:
-		case WSAENETRESET:
-			PR_SetError(PR_CONNECT_ABORTED_ERROR, err);
-			break;
-		case WSAEOPNOTSUPP:
-			PR_SetError(PR_OPERATION_NOT_SUPPORTED_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_recvfrom_error(PRInt32 err)
 {
-	switch (err) {
-		case WSAEWOULDBLOCK:
-			PR_SetError(PR_WOULD_BLOCK_ERROR, err);
-			break;
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case WSAECONNRESET:
-		case ERROR_NETNAME_DELETED:
-			PR_SetError(PR_CONNECT_RESET_ERROR, err);
-			break;
-		case WSAEINVAL:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAEISCONN:
-			PR_SetError(PR_IS_CONNECTED_ERROR, err);
-			break;
-		case WSAENETRESET:
-		case WSAECONNABORTED:
-		case WSAETIMEDOUT:
-			PR_SetError(PR_CONNECT_ABORTED_ERROR, err);
-			break;
-		case WSAESHUTDOWN:
-			PR_SetError(PR_SOCKET_SHUTDOWN_ERROR, err);
-			break;
-		case WSAEMSGSIZE:
-			PR_SetError(PR_BUFFER_OVERFLOW_ERROR, err);
-			break;
-		case WSAEOPNOTSUPP:
-			PR_SetError(PR_OPERATION_NOT_SUPPORTED_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_send_error(PRInt32 err)
 {
-	switch (err) {
-		case WSAEWOULDBLOCK:
-			PR_SetError(PR_WOULD_BLOCK_ERROR, err);
-			break;
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAEMSGSIZE:
-		case WSAEINVAL:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		case WSAENOBUFS:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case WSAENOTCONN:
-			PR_SetError(PR_NOT_CONNECTED_ERROR, err);
-			break;
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case WSAECONNRESET:
-		case ERROR_NETNAME_DELETED:
-			PR_SetError(PR_CONNECT_RESET_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAENETRESET:
-		case WSAECONNABORTED:
-		case WSAETIMEDOUT:
-			PR_SetError(PR_CONNECT_ABORTED_ERROR, err);
-			break;
-		case WSAESHUTDOWN:
-			PR_SetError(PR_SOCKET_SHUTDOWN_ERROR, err);
-			break;
-		case WSAEHOSTUNREACH:
-			PR_SetError(PR_HOST_UNREACHABLE_ERROR, err);
-			break;
-		case WSAEOPNOTSUPP:
-			PR_SetError(PR_OPERATION_NOT_SUPPORTED_ERROR, err);
-			break;
-		case WSAEACCES:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    PRErrorCode prError;
+
+    switch (err) {
+        case WSAEMSGSIZE:
+            prError = PR_INVALID_ARGUMENT_ERROR;
+            break;
+        default:
+            _MD_win32_map_default_error(err);
+            return;
+    }
+    PR_SetError(prError, err);
 }
 
 void _MD_win32_map_sendto_error(PRInt32 err)
 {
-	switch (err) {
-		case WSAEWOULDBLOCK:
-			PR_SetError(PR_WOULD_BLOCK_ERROR, err);
-			break;
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAEMSGSIZE:
-		case WSAEDESTADDRREQ:
-		case WSAEINVAL:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		case WSAENOBUFS:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case WSAENOTCONN:
-			PR_SetError(PR_NOT_CONNECTED_ERROR, err);
-			break;
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case WSAECONNRESET:
-		case ERROR_NETNAME_DELETED:
-			PR_SetError(PR_CONNECT_RESET_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAENETRESET:
-		case WSAECONNABORTED:
-		case WSAETIMEDOUT:
-			PR_SetError(PR_CONNECT_ABORTED_ERROR, err);
-			break;
-		case WSAESHUTDOWN:
-			PR_SetError(PR_SOCKET_SHUTDOWN_ERROR, err);
-			break;
-		case WSAEHOSTUNREACH:
-			PR_SetError(PR_HOST_UNREACHABLE_ERROR, err);
-			break;
-		case WSAENETUNREACH:
-			PR_SetError(PR_NETWORK_UNREACHABLE_ERROR, err);
-			break;
-		case WSAEAFNOSUPPORT:
-			PR_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR, err);
-			break;
-		case WSAEOPNOTSUPP:
-			PR_SetError(PR_OPERATION_NOT_SUPPORTED_ERROR, err);
-			break;
-		case WSAEACCES:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case WSAEADDRNOTAVAIL:
-			PR_SetError(PR_ADDRESS_NOT_AVAILABLE_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    PRErrorCode prError;
+
+    switch (err) {
+        case WSAEMSGSIZE:
+            prError = PR_INVALID_ARGUMENT_ERROR;
+            break;
+        default:
+            _MD_win32_map_default_error(err);
+            return;
+    }
+    PR_SetError(prError, err);
 }
 
 void _MD_win32_map_accept_error(PRInt32 err)
 {
-	switch (err) {
-		case WSAEWOULDBLOCK:
-			PR_SetError(PR_WOULD_BLOCK_ERROR, err);
-			break;
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAEOPNOTSUPP:
-			PR_SetError(PR_NOT_TCP_SOCKET_ERROR, err);
-			break;
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case WSAEMFILE:
-			PR_SetError(PR_PROC_DESC_TABLE_FULL_ERROR, err);
-			break;
-		case WSAENOBUFS:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAEINVAL:
-			PR_SetError(PR_INVALID_STATE_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    PRErrorCode prError;
+
+    switch (err) {
+        case WSAEOPNOTSUPP:
+            prError = PR_NOT_TCP_SOCKET_ERROR;
+            break;
+        case WSAEINVAL:
+            prError = PR_INVALID_STATE_ERROR;
+            break;
+        default:
+            _MD_win32_map_default_error(err);
+            return;
+    }
+    PR_SetError(prError, err);
 }
 
 void _MD_win32_map_acceptex_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_FILE_INVALID:
-		case ERROR_INVALID_HANDLE:
-			PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err);
-			break;
-		case ERROR_INVALID_ADDRESS:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-		case ERROR_INVALID_USER_BUFFER:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_connect_error(PRInt32 err)
 {
-	switch (err) {
-		case WSAEWOULDBLOCK:
-			PR_SetError(PR_IN_PROGRESS_ERROR, err);
-			break;
-		case WSAEALREADY:
-		case WSAEINVAL:
-			PR_SetError(PR_ALREADY_INITIATED_ERROR, err);
-			break;
-		case WSAEADDRNOTAVAIL:
-			PR_SetError(PR_ADDRESS_NOT_AVAILABLE_ERROR, err);
-			break;
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAEAFNOSUPPORT:
-			PR_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR, err);
-			break;
-		case WSAEISCONN:
-			PR_SetError(PR_IS_CONNECTED_ERROR, err);
-			break;
-		case WSAETIMEDOUT:
-			PR_SetError(PR_IO_TIMEOUT_ERROR, err);
-			break;
-		case WSAECONNREFUSED:
-			PR_SetError(PR_CONNECT_REFUSED_ERROR, err);
-			break;
-		case WSAENETUNREACH:
-			PR_SetError(PR_NETWORK_UNREACHABLE_ERROR, err);
-			break;
-		case WSAEADDRINUSE:
-			PR_SetError(PR_ADDRESS_IN_USE_ERROR, err);
-			break;
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAENOBUFS:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case WSAEACCES:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    PRErrorCode prError;
+
+    switch (err) {
+        case WSAEWOULDBLOCK:
+            prError = PR_IN_PROGRESS_ERROR;
+            break;
+        case WSAEINVAL:
+            prError = PR_ALREADY_INITIATED_ERROR;
+            break;
+        case WSAETIMEDOUT:
+            prError = PR_IO_TIMEOUT_ERROR;
+            break;
+        default:
+            _MD_win32_map_default_error(err);
+            return;
+    }
+    PR_SetError(prError, err);
 }
 
 void _MD_win32_map_bind_error(PRInt32 err)
 {
-	switch (err) {
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case WSAEADDRNOTAVAIL:
-			PR_SetError(PR_ADDRESS_NOT_AVAILABLE_ERROR, err);
-			break;
-		case WSAEADDRINUSE:
-			PR_SetError(PR_ADDRESS_IN_USE_ERROR, err);
-			break;
-		case WSAEINVAL:
-			PR_SetError(PR_SOCKET_ADDRESS_IS_BOUND_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAENOBUFS:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    PRErrorCode prError;
+
+    switch (err) {
+        case WSAEINVAL:
+            prError = PR_SOCKET_ADDRESS_IS_BOUND_ERROR;
+            break;
+        default:
+            _MD_win32_map_default_error(err);
+            return;
+    }
+    PR_SetError(prError, err);
 }
 
 void _MD_win32_map_listen_error(PRInt32 err)
 {
-	switch (err) {
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAEOPNOTSUPP:
-			PR_SetError(PR_NOT_TCP_SOCKET_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAEINVAL:
-			PR_SetError(PR_INVALID_STATE_ERROR, err);
-			break;
-		case WSAEISCONN:
-			PR_SetError(PR_IS_CONNECTED_ERROR, err);
-			break;
-		case WSAENOBUFS:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case WSAEADDRINUSE:
-			PR_SetError(PR_ADDRESS_IN_USE_ERROR, err);
-			break;
-		case WSAEMFILE:
-			PR_SetError(PR_PROC_DESC_TABLE_FULL_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    PRErrorCode prError;
+
+    switch (err) {
+        case WSAEOPNOTSUPP:
+            prError = PR_NOT_TCP_SOCKET_ERROR;
+            break;
+        case WSAEINVAL:
+            prError = PR_INVALID_STATE_ERROR;
+            break;
+        default:
+            _MD_win32_map_default_error(err);
+            return;
+    }
+    PR_SetError(prError, err);
 }
 
 void _MD_win32_map_shutdown_error(PRInt32 err)
 {
-	switch (err) {
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAENOTCONN:
-			PR_SetError(PR_NOT_CONNECTED_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAEINVAL:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_getsockname_error(PRInt32 err)
 {
-	switch (err) {
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAEINVAL:
-			PR_SetError(PR_INVALID_STATE_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    PRErrorCode prError;
+
+    switch (err) {
+        case WSAEINVAL:
+            prError = PR_INVALID_STATE_ERROR;
+            break;
+        default:
+            _MD_win32_map_default_error(err);
+            return;
+    }
+    PR_SetError(prError, err);
 }
 
 void _MD_win32_map_getpeername_error(PRInt32 err)
 {
-
-	switch (err) {
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAENOTCONN:
-			PR_SetError(PR_NOT_CONNECTED_ERROR, err);
-			break;
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_getsockopt_error(PRInt32 err)
 {
-	switch (err) {
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAEINVAL:
-		case WSAENOPROTOOPT:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_setsockopt_error(PRInt32 err)
 {
-	switch (err) {
-		case WSAENOTSOCK:
-			PR_SetError(PR_NOT_SOCKET_ERROR, err);
-			break;
-		case WSAEINVAL:
-		case WSAENOPROTOOPT:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case WSAENETDOWN:
-			PR_SetError(PR_NETWORK_DOWN_ERROR, err);
-			break;
-		case WSAENETRESET:
-			PR_SetError(PR_CONNECT_ABORTED_ERROR, err);
-			break;
-		case WSAENOTCONN:
-			PR_SetError(PR_NOT_CONNECTED_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_open_error(PRInt32 err)
 {
-	switch (err) {
-		case ERROR_ALREADY_EXISTS:
-		case ERROR_FILE_EXISTS:
-			PR_SetError(PR_FILE_EXISTS_ERROR, err);
-			break;
-		case ERROR_FILE_NOT_FOUND:
-			PR_SetError(PR_FILE_NOT_FOUND_ERROR, err);
-			break;
-		case ERROR_ACCESS_DENIED:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case ERROR_INVALID_ADDRESS:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_INVALID_NAME:
-			PR_SetError(PR_INVALID_ARGUMENT_ERROR, err);
-			break;
-		case ERROR_DISK_CORRUPT:
-		case ERROR_DISK_OPERATION_FAILED:
-		case ERROR_FILE_CORRUPT:
-		case ERROR_NOT_READY:
-		case ERROR_OPEN_FAILED:
-		case ERROR_OPEN_FILES:
-		case ERROR_PATH_BUSY:
-			PR_SetError(PR_IO_ERROR, err);
-			break;
-		case ERROR_DRIVE_LOCKED:
-			PR_SetError(PR_FILE_IS_LOCKED_ERROR, err);
-			break;
-		case ERROR_FILENAME_EXCED_RANGE:
-			PR_SetError(PR_NAME_TOO_LONG_ERROR, err);
-			break;
-		case ERROR_TOO_MANY_OPEN_FILES:
-			PR_SetError(PR_SYS_DESC_TABLE_FULL_ERROR, err);
-			break;
-		case ERROR_PATH_NOT_FOUND:
-			PR_SetError(PR_FILE_NOT_FOUND_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case ERROR_DISK_FULL:
-		case ERROR_HANDLE_DISK_FULL:
-			PR_SetError(PR_NO_DEVICE_SPACE_ERROR, err);
-			break;
-		case ERROR_WRITE_PROTECT:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-	}
+    _MD_win32_map_default_error(err);
 }
 
 void _MD_win32_map_gethostname_error(PRInt32 err)
 {
-    switch (err) {
-		case WSAEFAULT:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case WSAENETDOWN:
-		case WSAEINPROGRESS:
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-    }
+    _MD_win32_map_default_error(err);
 }
 
+/* Win32 select() only works on sockets.  So in this
+** context, WSAENOTSOCK is equivalent to EBADF on Unix.  
+*/
 void _MD_win32_map_select_error(PRInt32 err)
 {
-    PRErrorCode prerror;
+    PRErrorCode prError;
 
     switch (err) {
-        /*
-         * Win32 select() only works on sockets.  So in this
-         * context, WSAENOTSOCK is equivalent to EBADF on Unix.
-         */
         case WSAENOTSOCK:
-            prerror = PR_BAD_DESCRIPTOR_ERROR;
-            break;
-        case WSAEINVAL:
-            prerror = PR_INVALID_ARGUMENT_ERROR;
-            break;
-        case WSAEFAULT:
-            prerror = PR_ACCESS_FAULT_ERROR;
+            prError = PR_BAD_DESCRIPTOR_ERROR;
             break;
-		case WSAENETDOWN:
-			prerror = PR_NETWORK_DOWN_ERROR;
-			break;
         default:
-            prerror = PR_UNKNOWN_ERROR;
+            _MD_win32_map_default_error(err);
+            return;
     }
-    PR_SetError(prerror, err);
+    PR_SetError(prError, err);
 }
 
 void _MD_win32_map_lockf_error(PRInt32 err)
 {
-    switch (err) {
-		case ERROR_ACCESS_DENIED:
-			PR_SetError(PR_NO_ACCESS_RIGHTS_ERROR, err);
-			break;
-		case ERROR_FILE_INVALID:
-		case ERROR_INVALID_HANDLE:
-			PR_SetError(PR_BAD_DESCRIPTOR_ERROR, err);
-			break;
-		case ERROR_INVALID_ADDRESS:
-		case ERROR_STACK_OVERFLOW:
-			PR_SetError(PR_ACCESS_FAULT_ERROR, err);
-			break;
-		case ERROR_DRIVE_LOCKED:
-		case ERROR_LOCKED:
-			PR_SetError(PR_FILE_IS_LOCKED_ERROR, err);
-			break;
-		case ERROR_SHARING_VIOLATION:
-			PR_SetError(PR_FILE_IS_BUSY_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_MEMORY:
-		case ERROR_OUTOFMEMORY:
-			PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, err);
-			break;
-		case ERROR_NOT_ENOUGH_QUOTA:
-			PR_SetError(PR_OUT_OF_MEMORY_ERROR, err);
-			break;
-		default:
-			PR_SetError(PR_UNKNOWN_ERROR, err);
-			break;
-    }
+    _MD_win32_map_default_error(err);
 }