From 480f0182fa430e3f5e50e0c719ee0b782cb4aebd Mon Sep 17 00:00:00 2001 From: Simon McVittie Date: Fri, 8 May 2015 15:36:19 +0100 Subject: [PATCH] Revert "reader_init: Initialize all fields of struct DBusTypeReader (CID 54754, 54772, 54773)." This reverts commit 21a7873f20145d561c2de8f084d98200a8de2c83. This appears to cause a segfault, presumably resulting from something assuming that reader_init() would not reinitialize all fields: #0 0x00007ffff7b74777 in _dbus_type_reader_get_current_type (reader=reader@entry=0x7fffffffda50) at .../dbus/dbus-marshal-recursive.c:791 #1 0x00007ffff7b719d0 in _dbus_header_cache_check (header=) at .../dbus/dbus-marshal-header.c:209 #2 0x00007ffff7b719d0 in _dbus_header_cache_check (header=header@entry=0x624658, field=field@entry=6) at .../dbus/dbus-marshal-header.c:250 #3 0x00007ffff7b72884 in _dbus_header_get_field_basic (header=header@entry=0x624658, field=field@entry=6, type=type@entry=115, value=value@entry=0x7fffffffdbd8) at .../dbus/dbus-marshal-header.c:1365 #4 0x00007ffff7b7d8c2 in dbus_message_get_destination (message=message@entry=0x624650) at .../dbus/dbus-message.c:3457 #5 0x00007ffff7b67be6 in _dbus_connection_send_preallocated_unlocked_no_update (connection=connection@entry=0x6236d0, preallocated=0x0, preallocated@entry=0x6234c0, message=message@entry=0x624650, client_serial=client_serial@entry=0x7fffffffdcbc) at .../dbus/dbus-connection.c:2017 --- dbus/dbus-marshal-recursive.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/dbus/dbus-marshal-recursive.c b/dbus/dbus-marshal-recursive.c index de997953..4adfd2e9 100644 --- a/dbus/dbus-marshal-recursive.c +++ b/dbus/dbus-marshal-recursive.c @@ -149,7 +149,6 @@ reader_init (DBusTypeReader *reader, const DBusString *value_str, int value_pos) { - _DBUS_ZERO (*reader); reader->byte_order = byte_order; reader->finished = FALSE; reader->type_str = type_str; @@ -737,11 +736,11 @@ _dbus_type_reader_init (DBusTypeReader *reader, const DBusString *value_str, int value_pos) { + reader->klass = &body_reader_class; + reader_init (reader, byte_order, type_str, type_pos, value_str, value_pos); - reader->klass = &body_reader_class; - #if RECURSIVE_MARSHAL_READ_TRACE _dbus_verbose (" type reader %p init type_pos = %d value_pos = %d remaining sig '%s'\n", reader, reader->type_pos, reader->value_pos, @@ -762,11 +761,11 @@ _dbus_type_reader_init_types_only (DBusTypeReader *reader, const DBusString *type_str, int type_pos) { + reader->klass = &body_types_only_reader_class; + reader_init (reader, DBUS_COMPILER_BYTE_ORDER /* irrelevant */, type_str, type_pos, NULL, _DBUS_INT_MAX /* crashes if we screw up */); - reader->klass = &body_types_only_reader_class; - #if RECURSIVE_MARSHAL_READ_TRACE _dbus_verbose (" type reader %p init types only type_pos = %d remaining sig '%s'\n", reader, reader->type_pos,