[kdbus] Do not set body message if signature field is empty
[platform/upstream/glib.git] / gio / glocalfileoutputstream.c
index 520f771..b8fd45c 100644 (file)
@@ -13,9 +13,7 @@
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General
- * Public License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
  *
  * Author: Alexander Larsson <alexl@redhat.com>
  */
@@ -25,9 +23,6 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
 #include <errno.h>
 #include <string.h>
 
 #include "gioerror.h"
 #include "gcancellable.h"
 #include "glocalfileoutputstream.h"
+#include "gfileinfo.h"
 #include "glocalfileinfo.h"
 
 #ifdef G_OS_UNIX
+#include <unistd.h>
 #include "gfiledescriptorbased.h"
 #endif
 
 #define O_BINARY 0
 #endif
 
+struct _GLocalFileOutputStreamPrivate {
+  char *tmp_filename;
+  char *original_filename;
+  char *backup_filename;
+  char *etag;
+  guint sync_on_close : 1;
+  guint do_close : 1;
+  int fd;
+};
 
 #ifdef G_OS_UNIX
 static void       g_file_descriptor_based_iface_init   (GFileDescriptorBasedIface *iface);
@@ -65,11 +71,12 @@ static void       g_file_descriptor_based_iface_init   (GFileDescriptorBasedIfac
 #define g_local_file_output_stream_get_type _g_local_file_output_stream_get_type
 #ifdef G_OS_UNIX
 G_DEFINE_TYPE_WITH_CODE (GLocalFileOutputStream, g_local_file_output_stream, G_TYPE_FILE_OUTPUT_STREAM,
+                         G_ADD_PRIVATE (GLocalFileOutputStream)
                         G_IMPLEMENT_INTERFACE (G_TYPE_FILE_DESCRIPTOR_BASED,
-                                               g_file_descriptor_based_iface_init)
-                           );
+                                               g_file_descriptor_based_iface_init))
 #else
-G_DEFINE_TYPE_WITH_CODE (GLocalFileOutputStream, g_local_file_output_stream, G_TYPE_FILE_OUTPUT_STREAM,);
+G_DEFINE_TYPE_WITH_CODE (GLocalFileOutputStream, g_local_file_output_stream, G_TYPE_FILE_OUTPUT_STREAM,
+                         G_ADD_PRIVATE (GLocalFileOutputStream))
 #endif
 
 
@@ -79,16 +86,6 @@ G_DEFINE_TYPE_WITH_CODE (GLocalFileOutputStream, g_local_file_output_stream, G_T
 
 #define BACKUP_EXTENSION "~"
 
-struct _GLocalFileOutputStreamPrivate {
-  char *tmp_filename;
-  char *original_filename;
-  char *backup_filename;
-  char *etag;
-  guint sync_on_close : 1;
-  guint do_close : 1;
-  int fd;
-};
-
 static gssize     g_local_file_output_stream_write        (GOutputStream      *stream,
                                                           const void         *buffer,
                                                           gsize               count,
@@ -133,16 +130,13 @@ g_local_file_output_stream_finalize (GObject *object)
   G_OBJECT_CLASS (g_local_file_output_stream_parent_class)->finalize (object);
 }
 
-
 static void
 g_local_file_output_stream_class_init (GLocalFileOutputStreamClass *klass)
 {
   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
   GOutputStreamClass *stream_class = G_OUTPUT_STREAM_CLASS (klass);
   GFileOutputStreamClass *file_stream_class = G_FILE_OUTPUT_STREAM_CLASS (klass);
-  
-  g_type_class_add_private (klass, sizeof (GLocalFileOutputStreamPrivate));
-  
+
   gobject_class->finalize = g_local_file_output_stream_finalize;
 
   stream_class->write_fn = g_local_file_output_stream_write;
@@ -167,9 +161,7 @@ g_file_descriptor_based_iface_init (GFileDescriptorBasedIface *iface)
 static void
 g_local_file_output_stream_init (GLocalFileOutputStream *stream)
 {
-  stream->priv = G_TYPE_INSTANCE_GET_PRIVATE (stream,
-                                             G_TYPE_LOCAL_FILE_OUTPUT_STREAM,
-                                             GLocalFileOutputStreamPrivate);
+  stream->priv = g_local_file_output_stream_get_instance_private (stream);
   stream->priv->do_close = TRUE;
 }
 
@@ -269,7 +261,7 @@ _g_local_file_output_stream_really_close (GLocalFileOutputStream *file,
          if (g_cancellable_set_error_if_cancelled (cancellable, error))
            goto err_out;
          
-#ifdef HAVE_LINK
+#ifdef G_OS_UNIX
          /* create original -> backup link, the original is then renamed over */
          if (g_unlink (file->priv->backup_filename) != 0 &&
              errno != ENOENT)
@@ -544,6 +536,28 @@ _g_local_file_output_stream_new (int fd)
   return G_FILE_OUTPUT_STREAM (stream);
 }
 
+static void
+set_error_from_open_errno (const char *filename,
+                           GError    **error)
+{
+  int errsv = errno;
+  
+  if (errsv == EINVAL)
+    /* This must be an invalid filename, on e.g. FAT */
+    g_set_error_literal (error, G_IO_ERROR,
+                         G_IO_ERROR_INVALID_FILENAME,
+                         _("Invalid filename"));
+  else
+    {
+      char *display_name = g_filename_display_name (filename);
+      g_set_error (error, G_IO_ERROR,
+                   g_io_error_from_errno (errsv),
+                   _("Error opening file '%s': %s"),
+                      display_name, g_strerror (errsv));
+      g_free (display_name);
+    }
+}
+
 static GFileOutputStream *
 output_stream_open (const char    *filename,
                     gint           open_flags,
@@ -557,22 +571,7 @@ output_stream_open (const char    *filename,
   fd = g_open (filename, open_flags, mode);
   if (fd == -1)
     {
-      int errsv = errno;
-
-      if (errsv == EINVAL)
-       /* This must be an invalid filename, on e.g. FAT */
-       g_set_error_literal (error, G_IO_ERROR,
-                             G_IO_ERROR_INVALID_FILENAME,
-                             _("Invalid filename"));
-      else
-       {
-         char *display_name = g_filename_display_name (filename);
-         g_set_error (error, G_IO_ERROR,
-                      g_io_error_from_errno (errsv),
-                      _("Error opening file '%s': %s"),
-                      display_name, g_strerror (errsv));
-         g_free (display_name);
-       }
+      set_error_from_open_errno (filename, error);
       return NULL;
     }
   
@@ -601,10 +600,23 @@ _g_local_file_output_stream_open  (const char        *filename,
   return output_stream_open (filename, open_flags, 0666, cancellable, error);
 }
 
+static gint
+mode_from_flags_or_info (GFileCreateFlags   flags,
+                         GFileInfo         *reference_info)
+{
+  if (flags & G_FILE_CREATE_PRIVATE)
+    return 0600;
+  else if (reference_info && g_file_info_has_attribute (reference_info, "unix::mode"))
+    return g_file_info_get_attribute_uint32 (reference_info, "unix::mode") & (~S_IFMT);
+  else
+    return 0666;
+}
+
 GFileOutputStream *
 _g_local_file_output_stream_create  (const char        *filename,
                                     gboolean          readable,
                                     GFileCreateFlags   flags,
+                                     GFileInfo         *reference_info,
                                     GCancellable      *cancellable,
                                     GError           **error)
 {
@@ -614,10 +626,7 @@ _g_local_file_output_stream_create  (const char        *filename,
   if (g_cancellable_set_error_if_cancelled (cancellable, error))
     return NULL;
 
-  if (flags & G_FILE_CREATE_PRIVATE)
-    mode = 0600;
-  else
-    mode = 0666;
+  mode = mode_from_flags_or_info (flags, reference_info);
 
   open_flags = O_CREAT | O_EXCL | O_BINARY;
   if (readable)
@@ -728,6 +737,7 @@ handle_overwrite_open (const char    *filename,
                       gboolean       create_backup,
                       char         **temp_filename,
                       GFileCreateFlags flags,
+                       GFileInfo       *reference_info,
                       GCancellable  *cancellable,
                       GError       **error)
 {
@@ -739,10 +749,7 @@ handle_overwrite_open (const char    *filename,
   int res;
   int mode;
 
-  if (flags & G_FILE_CREATE_PRIVATE)
-    mode = 0600;
-  else
-    mode = 0666;
+  mode = mode_from_flags_or_info (flags, reference_info);
 
   /* We only need read access to the original file if we are creating a backup.
    * We also add O_CREATE to avoid a race if the file was just removed */
@@ -1063,6 +1070,7 @@ _g_local_file_output_stream_replace (const char        *filename,
                                     const char        *etag,
                                     gboolean           create_backup,
                                     GFileCreateFlags   flags,
+                                     GFileInfo         *reference_info,
                                     GCancellable      *cancellable,
                                     GError           **error)
 {
@@ -1078,10 +1086,7 @@ _g_local_file_output_stream_replace (const char        *filename,
 
   temp_file = NULL;
 
-  if (flags & G_FILE_CREATE_PRIVATE)
-    mode = 0600;
-  else
-    mode = 0666;
+  mode = mode_from_flags_or_info (flags, reference_info);
   sync_on_close = FALSE;
 
   /* If the file doesn't exist, create it */
@@ -1096,8 +1101,9 @@ _g_local_file_output_stream_replace (const char        *filename,
     {
       /* The file already exists */
       fd = handle_overwrite_open (filename, readable, etag,
-                                 create_backup, &temp_file,
-                                 flags, cancellable, error);
+                                  create_backup, &temp_file,
+                                  flags, reference_info,
+                                  cancellable, error);
       if (fd == -1)
        return NULL;
 
@@ -1111,22 +1117,7 @@ _g_local_file_output_stream_replace (const char        *filename,
     }
   else if (fd == -1)
     {
-      int errsv = errno;
-
-      if (errsv == EINVAL)
-       /* This must be an invalid filename, on e.g. FAT */
-       g_set_error_literal (error, G_IO_ERROR,
-                             G_IO_ERROR_INVALID_FILENAME,
-                             _("Invalid filename"));
-      else
-       {
-         char *display_name = g_filename_display_name (filename);
-         g_set_error (error, G_IO_ERROR,
-                      g_io_error_from_errno (errsv),
-                      _("Error opening file '%s': %s"),
-                      display_name, g_strerror (errsv));
-         g_free (display_name);
-       }
+      set_error_from_open_errno (filename, error);
       return NULL;
     }