gio/gioerror.c

   1 /* GIO - GLib Input, Output and Streaming Library
   2  *
   3  * Copyright (C) 2006-2007 Red Hat, Inc.
   4  *
   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 of the License, or (at your option) any later version.
   9  *
  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.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Author: Alexander Larsson <alexl@redhat.com>
  21  */
  22
  23 #include "config.h"
  24 #include <errno.h>
  25 #include "gioerror.h"
  26
  27
  28 /**
  29  * SECTION:gioerror
  30  * @short_description: Error helper functions
  31  * @include: gio/gio.h
  32  *
  33  * Contains helper functions for reporting errors to the user.
  34  **/
  35
  36 /**
  37  * g_io_error_quark:
  38  *
  39  * Gets the GIO Error Quark.
  40  *
  41  * Return value: a #GQuark.
  42  **/
  43 G_DEFINE_QUARK (g-io-error-quark, g_io_error)
  44
  45 /**
  46  * g_io_error_from_errno:
  47  * @err_no: Error number as defined in errno.h.
  48  *
  49  * Converts errno.h error codes into GIO error codes.
  50  *
  51  * Returns: #GIOErrorEnum value for the given errno.h error number.
  52  **/
  53 GIOErrorEnum
  54 g_io_error_from_errno (gint err_no)
  55 {
  56   switch (err_no)
  57     {
  58 #ifdef EEXIST
  59     case EEXIST:
  60       return G_IO_ERROR_EXISTS;
  61       break;
  62 #endif
  63
  64 #ifdef EISDIR
  65     case EISDIR:
  66       return G_IO_ERROR_IS_DIRECTORY;
  67       break;
  68 #endif
  69
  70 #ifdef EACCES
  71     case EACCES:
  72       return G_IO_ERROR_PERMISSION_DENIED;
  73       break;
  74 #endif
  75
  76 #ifdef ENAMETOOLONG
  77     case ENAMETOOLONG:
  78       return G_IO_ERROR_FILENAME_TOO_LONG;
  79       break;
  80 #endif
  81
  82 #ifdef ENOENT
  83     case ENOENT:
  84       return G_IO_ERROR_NOT_FOUND;
  85       break;
  86 #endif
  87
  88 #ifdef ENOTDIR
  89     case ENOTDIR:
  90       return G_IO_ERROR_NOT_DIRECTORY;
  91       break;
  92 #endif
  93
  94 #ifdef EROFS
  95     case EROFS:
  96       return G_IO_ERROR_READ_ONLY;
  97       break;
  98 #endif
  99
 100 #ifdef ELOOP
 101     case ELOOP:
 102       return G_IO_ERROR_TOO_MANY_LINKS;
 103       break;
 104 #endif
 105
 106 #ifdef ENOSPC
 107     case ENOSPC:
 108       return G_IO_ERROR_NO_SPACE;
 109       break;
 110 #endif
 111
 112 #ifdef ENOMEM
 113     case ENOMEM:
 114       return G_IO_ERROR_NO_SPACE;
 115       break;
 116 #endif
 117
 118 #ifdef EINVAL
 119     case EINVAL:
 120       return G_IO_ERROR_INVALID_ARGUMENT;
 121       break;
 122 #endif
 123
 124 #ifdef EPERM
 125     case EPERM:
 126       return G_IO_ERROR_PERMISSION_DENIED;
 127       break;
 128 #endif
 129
 130 #ifdef ECANCELED
 131     case ECANCELED:
 132       return G_IO_ERROR_CANCELLED;
 133       break;
 134 #endif
 135
 136 #if defined(ENOTEMPTY) && (!defined (EEXIST) || (ENOTEMPTY != EEXIST))
 137     case ENOTEMPTY:
 138       return G_IO_ERROR_NOT_EMPTY;
 139       break;
 140 #endif
 141
 142 #ifdef ENOTSUP
 143     case ENOTSUP:
 144       return G_IO_ERROR_NOT_SUPPORTED;
 145       break;
 146 #endif
 147
 148 #ifdef ETIMEDOUT
 149     case ETIMEDOUT:
 150       return G_IO_ERROR_TIMED_OUT;
 151       break;
 152 #endif
 153
 154 #ifdef EBUSY
 155     case EBUSY:
 156       return G_IO_ERROR_BUSY;
 157       break;
 158 #endif
 159
 160 /* some magic to deal with EWOULDBLOCK and EAGAIN.
 161  * apparently on HP-UX these are actually defined to different values,
 162  * but on Linux, for example, they are the same.
 163  */
 164 #if defined(EWOULDBLOCK) && defined(EAGAIN) && EWOULDBLOCK == EAGAIN
 165     /* we have both and they are the same: only emit one case. */
 166     case EAGAIN:
 167       return G_IO_ERROR_WOULD_BLOCK;
 168       break;
 169 #else
 170     /* else: consider each of them separately.  this handles both the
 171      * case of having only one and the case where they are different values.
 172      */
 173 # ifdef EAGAIN
 174     case EAGAIN:
 175       return G_IO_ERROR_WOULD_BLOCK;
 176       break;
 177 # endif
 178
 179 # ifdef EWOULDBLOCK
 180     case EWOULDBLOCK:
 181       return G_IO_ERROR_WOULD_BLOCK;
 182       break;
 183 # endif
 184 #endif
 185
 186 #ifdef EMFILE
 187     case EMFILE:
 188       return G_IO_ERROR_TOO_MANY_OPEN_FILES;
 189       break;
 190 #endif
 191
 192 #ifdef EADDRINUSE
 193     case EADDRINUSE:
 194       return G_IO_ERROR_ADDRESS_IN_USE;
 195       break;
 196 #endif
 197
 198 #ifdef EHOSTUNREACH
 199     case EHOSTUNREACH:
 200       return G_IO_ERROR_HOST_UNREACHABLE;
 201       break;
 202 #endif
 203
 204 #ifdef ENETUNREACH
 205     case ENETUNREACH:
 206       return G_IO_ERROR_NETWORK_UNREACHABLE;
 207       break;
 208 #endif
 209
 210 #ifdef ECONNREFUSED
 211     case ECONNREFUSED:
 212       return G_IO_ERROR_CONNECTION_REFUSED;
 213       break;
 214 #endif
 215
 216 #ifdef EPIPE
 217     case EPIPE:
 218       return G_IO_ERROR_BROKEN_PIPE;
 219       break;
 220 #endif
 221
 222     default:
 223       return G_IO_ERROR_FAILED;
 224       break;
 225     }
 226 }
 227
 228 #ifdef G_OS_WIN32
 229
 230 /**
 231  * g_io_error_from_win32_error:
 232  * @error_code: Windows error number.
 233  *
 234  * Converts some common error codes into GIO error codes. The
 235  * fallback value G_IO_ERROR_FAILED is returned for error codes not
 236  * handled.
 237  *
 238  * Returns: #GIOErrorEnum value for the given error number.
 239  *
 240  * Since: 2.26
 241  **/
 242 GIOErrorEnum
 243 g_io_error_from_win32_error (gint error_code)
 244 {
 245   switch (error_code)
 246     {
 247     default:
 248       return G_IO_ERROR_FAILED;
 249       break;
 250     }
 251 }
 252
 253 #endif