* 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>
*/
#include "config.h"
+#include "gzlibdecompressor.h"
+
#include <errno.h>
#include <zlib.h>
#include <string.h>
-#include "gzlibdecompressor.h"
-#include "glib.h"
+#include "gfileinfo.h"
#include "gioerror.h"
-#include "glibintl.h"
#include "gioenums.h"
#include "gioenumtypes.h"
+#include "glibintl.h"
-#include "gioalias.h"
enum {
PROP_0,
- PROP_FORMAT
+ PROP_FORMAT,
+ PROP_FILE_INFO
};
/**
static void g_zlib_decompressor_iface_init (GConverterIface *iface);
+typedef struct {
+ gz_header gzheader;
+ char filename[257];
+ GFileInfo *file_info;
+} HeaderData;
+
/**
* GZlibDecompressor:
*
GZlibCompressorFormat format;
z_stream zstream;
+ HeaderData *header_data;
};
+static void
+g_zlib_decompressor_set_gzheader (GZlibDecompressor *decompressor)
+{
+ /* On win32, these functions were not exported before 1.2.4 */
+#if !defined (G_OS_WIN32) || ZLIB_VERNUM >= 0x1240
+ if (decompressor->format != G_ZLIB_COMPRESSOR_FORMAT_GZIP)
+ return;
+
+ if (decompressor->header_data != NULL)
+ {
+ if (decompressor->header_data->file_info)
+ g_object_unref (decompressor->header_data->file_info);
+
+ memset (decompressor->header_data, 0, sizeof (HeaderData));
+ }
+ else
+ {
+ decompressor->header_data = g_new0 (HeaderData, 1);
+ }
+
+ decompressor->header_data->gzheader.name = (Bytef*) &decompressor->header_data->filename;
+ /* We keep one byte to guarantee the string is 0-terminated */
+ decompressor->header_data->gzheader.name_max = 256;
+
+ if (inflateGetHeader (&decompressor->zstream, &decompressor->header_data->gzheader) != Z_OK)
+ g_warning ("unexpected zlib error: %s\n", decompressor->zstream.msg);
+#endif /* !G_OS_WIN32 || ZLIB >= 1.2.4 */
+}
+
G_DEFINE_TYPE_WITH_CODE (GZlibDecompressor, g_zlib_decompressor, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_CONVERTER,
g_zlib_decompressor_iface_init))
inflateEnd (&decompressor->zstream);
+ if (decompressor->header_data != NULL)
+ {
+ if (decompressor->header_data->file_info)
+ g_object_unref (decompressor->header_data->file_info);
+ g_free (decompressor->header_data);
+ }
+
G_OBJECT_CLASS (g_zlib_decompressor_parent_class)->finalize (object);
}
g_value_set_enum (value, decompressor->format);
break;
+ case PROP_FILE_INFO:
+ if (decompressor->header_data)
+ g_value_set_object (value, decompressor->header_data->file_info);
+ else
+ g_value_set_object (value, NULL);
+ break;
+
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
else if (decompressor->format == G_ZLIB_COMPRESSOR_FORMAT_RAW)
{
- /* Negative for gzip */
+ /* Negative for raw */
res = inflateInit2 (&decompressor->zstream, -MAX_WBITS);
}
else /* ZLIB */
if (res != Z_OK)
g_warning ("unexpected zlib error: %s\n", decompressor->zstream.msg);
+
+ g_zlib_decompressor_set_gzheader (decompressor);
}
static void
G_ZLIB_COMPRESSOR_FORMAT_ZLIB,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
+
+ /**
+ * GZlibDecompressor:file-info:
+ *
+ * A #GFileInfo containing the information found in the GZIP header
+ * of the data stream processed, or %NULL if the header was not yet
+ * fully processed, is not present at all, or the compressor's
+ * #GZlibDecompressor:format property is not %G_ZLIB_COMPRESSOR_FORMAT_GZIP.
+ *
+ * Since: 2.26
+ */
+ g_object_class_install_property (gobject_class,
+ PROP_FILE_INFO,
+ g_param_spec_object ("file-info",
+ P_("file info"),
+ P_("File info"),
+ G_TYPE_FILE_INFO,
+ G_PARAM_READABLE |
+ G_PARAM_STATIC_STRINGS));
}
/**
return decompressor;
}
+/**
+ * g_zlib_decompressor_get_file_info:
+ * @decompressor: a #GZlibDecompressor
+ *
+ * Retrieves the #GFileInfo constructed from the GZIP header data
+ * of compressed data processed by @compressor, or %NULL if @decompressor's
+ * #GZlibDecompressor:format property is not %G_ZLIB_COMPRESSOR_FORMAT_GZIP,
+ * or the header data was not fully processed yet, or it not present in the
+ * data stream at all.
+ *
+ * Returns: (transfer none): a #GFileInfo, or %NULL
+ *
+ * Since: 2.26
+ */
+GFileInfo *
+g_zlib_decompressor_get_file_info (GZlibDecompressor *decompressor)
+{
+ g_return_val_if_fail (G_IS_ZLIB_DECOMPRESSOR (decompressor), NULL);
+
+ if (decompressor->header_data)
+ return decompressor->header_data->file_info;
+
+ return NULL;
+}
+
static void
g_zlib_decompressor_reset (GConverter *converter)
{
res = inflateReset (&decompressor->zstream);
if (res != Z_OK)
g_warning ("unexpected zlib error: %s\n", decompressor->zstream.msg);
+
+ g_zlib_decompressor_set_gzheader (decompressor);
}
static GConverterResult
return G_CONVERTER_ERROR;
}
- if (res == Z_OK || res == Z_STREAM_END)
+ g_assert (res == Z_OK || res == Z_STREAM_END);
+
+ *bytes_read = inbuf_size - decompressor->zstream.avail_in;
+ *bytes_written = outbuf_size - decompressor->zstream.avail_out;
+
+#if !defined (G_OS_WIN32) || ZLIB_VERNUM >= 0x1240
+ if (decompressor->header_data != NULL &&
+ decompressor->header_data->gzheader.done == 1)
{
- *bytes_read = inbuf_size - decompressor->zstream.avail_in;
- *bytes_written = outbuf_size - decompressor->zstream.avail_out;
+ HeaderData *data = decompressor->header_data;
+
+ /* So we don't notify again */
+ data->gzheader.done = 2;
+
+ data->file_info = g_file_info_new ();
+ g_file_info_set_attribute_uint64 (data->file_info,
+ G_FILE_ATTRIBUTE_TIME_MODIFIED,
+ data->gzheader.time);
+ g_file_info_set_attribute_uint32 (data->file_info,
+ G_FILE_ATTRIBUTE_TIME_MODIFIED_USEC,
+ 0);
- if (res == Z_STREAM_END)
- return G_CONVERTER_FINISHED;
- return G_CONVERTER_CONVERTED;
+ if (data->filename[0] != '\0')
+ g_file_info_set_attribute_byte_string (data->file_info,
+ G_FILE_ATTRIBUTE_STANDARD_NAME,
+ data->filename);
+
+ g_object_notify (G_OBJECT (decompressor), "file-info");
}
+#endif /* !G_OS_WIN32 || ZLIB >= 1.2.4 */
- g_assert_not_reached ();
+ if (res == Z_STREAM_END)
+ return G_CONVERTER_FINISHED;
+ return G_CONVERTER_CONVERTED;
}
static void
iface->convert = g_zlib_decompressor_convert;
iface->reset = g_zlib_decompressor_reset;
}
-
-#define __G_ZLIB_DECOMPRESSOR_C__
-#include "gioaliasdef.c"
projects / platform / upstream / glib.git / blobdiff