1 /* GIO - GLib Input, Output and Streaming Library
3 * Copyright (C) 2006-2007 Red Hat, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
18 * Author: Alexander Larsson <alexl@redhat.com>
31 * @short_description: Error helper functions
34 * Contains helper functions for reporting errors to the user.
40 * Gets the GIO Error Quark.
44 G_DEFINE_QUARK (g-io-error-quark, g_io_error)
47 * g_io_error_from_errno:
48 * @err_no: Error number as defined in errno.h.
50 * Converts errno.h error codes into GIO error codes. The fallback
51 * value %G_IO_ERROR_FAILED is returned for error codes not currently
52 * handled (but note that future GLib releases may return a more
53 * specific value instead).
55 * As %errno is global and may be modified by intermediate function
56 * calls, you should save its value as soon as the call which sets it
62 * saved_errno = errno;
64 * g_io_error_from_errno (saved_errno);
67 * Returns: #GIOErrorEnum value for the given errno.h error number.
70 g_io_error_from_errno (gint err_no)
76 return G_IO_ERROR_EXISTS;
82 return G_IO_ERROR_IS_DIRECTORY;
88 return G_IO_ERROR_PERMISSION_DENIED;
94 return G_IO_ERROR_FILENAME_TOO_LONG;
100 return G_IO_ERROR_NOT_FOUND;
106 return G_IO_ERROR_NOT_DIRECTORY;
112 return G_IO_ERROR_READ_ONLY;
118 return G_IO_ERROR_TOO_MANY_LINKS;
124 return G_IO_ERROR_NO_SPACE;
130 return G_IO_ERROR_NO_SPACE;
136 return G_IO_ERROR_INVALID_ARGUMENT;
142 return G_IO_ERROR_PERMISSION_DENIED;
148 return G_IO_ERROR_CANCELLED;
152 /* ENOTEMPTY == EEXIST on AIX for backward compatibility reasons */
153 #if defined (ENOTEMPTY) && (!defined (EEXIST) || (ENOTEMPTY != EEXIST))
155 return G_IO_ERROR_NOT_EMPTY;
161 return G_IO_ERROR_NOT_SUPPORTED;
165 /* EOPNOTSUPP == ENOTSUP on Linux, but POSIX considers them distinct */
166 #if defined (EOPNOTSUPP) && (!defined (ENOTSUP) || (EOPNOTSUPP != ENOTSUP))
168 return G_IO_ERROR_NOT_SUPPORTED;
172 #ifdef EPROTONOSUPPORT
173 case EPROTONOSUPPORT:
174 return G_IO_ERROR_NOT_SUPPORTED;
178 #ifdef ESOCKTNOSUPPORT
179 case ESOCKTNOSUPPORT:
180 return G_IO_ERROR_NOT_SUPPORTED;
186 return G_IO_ERROR_NOT_SUPPORTED;
192 return G_IO_ERROR_NOT_SUPPORTED;
198 return G_IO_ERROR_TIMED_OUT;
204 return G_IO_ERROR_BUSY;
210 return G_IO_ERROR_WOULD_BLOCK;
214 /* EWOULDBLOCK == EAGAIN on most systems, but POSIX considers them distinct */
215 #if defined (EAGAIN) && (!defined (EWOULDBLOCK) || (EWOULDBLOCK != EAGAIN))
217 return G_IO_ERROR_WOULD_BLOCK;
223 return G_IO_ERROR_TOO_MANY_OPEN_FILES;
229 return G_IO_ERROR_ADDRESS_IN_USE;
235 return G_IO_ERROR_HOST_UNREACHABLE;
241 return G_IO_ERROR_NETWORK_UNREACHABLE;
247 return G_IO_ERROR_CONNECTION_REFUSED;
253 return G_IO_ERROR_BROKEN_PIPE;
259 return G_IO_ERROR_CONNECTION_CLOSED;
265 return G_IO_ERROR_NOT_CONNECTED;
271 return G_IO_ERROR_MESSAGE_TOO_LARGE;
277 return G_IO_ERROR_INVALID_ARGUMENT;
282 return G_IO_ERROR_FAILED;
290 * g_io_error_from_win32_error:
291 * @error_code: Windows error number.
293 * Converts some common error codes (as returned from GetLastError()
294 * or WSAGetLastError()) into GIO error codes. The fallback value
295 * %G_IO_ERROR_FAILED is returned for error codes not currently
296 * handled (but note that future GLib releases may return a more
297 * specific value instead).
299 * You can use g_win32_error_message() to get a localized string
300 * corresponding to @error_code. (But note that unlike g_strerror(),
301 * g_win32_error_message() returns a string that must be freed.)
303 * Returns: #GIOErrorEnum value for the given error number.
308 g_io_error_from_win32_error (gint error_code)
310 /* Note: Winsock errors are a subset of Win32 error codes as a
311 * whole. (The fact that the Winsock API makes them look like they
312 * aren't is just because the API predates Win32.)
318 return G_IO_ERROR_ADDRESS_IN_USE;
321 return G_IO_ERROR_WOULD_BLOCK;
324 return G_IO_ERROR_PERMISSION_DENIED;
326 case WSA_INVALID_HANDLE:
327 case WSA_INVALID_PARAMETER:
331 return G_IO_ERROR_INVALID_ARGUMENT;
333 case WSAEPROTONOSUPPORT:
334 return G_IO_ERROR_NOT_SUPPORTED;
337 return G_IO_ERROR_CANCELLED;
339 case WSAESOCKTNOSUPPORT:
341 case WSAEPFNOSUPPORT:
342 case WSAEAFNOSUPPORT:
343 return G_IO_ERROR_NOT_SUPPORTED;
348 return G_IO_ERROR_CONNECTION_CLOSED;
350 case WSAEHOSTUNREACH:
351 return G_IO_ERROR_HOST_UNREACHABLE;
354 return G_IO_ERROR_NETWORK_UNREACHABLE;
356 case WSAECONNREFUSED:
357 return G_IO_ERROR_CONNECTION_REFUSED;
360 return G_IO_ERROR_TIMED_OUT;
363 case ERROR_PIPE_LISTENING:
364 return G_IO_ERROR_NOT_CONNECTED;
367 return G_IO_ERROR_MESSAGE_TOO_LARGE;
370 return G_IO_ERROR_FAILED;