The test is meant to check read-only files don't get overwritten, which
is 0400 in octal.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Much like GBindingGroup, the GSignalGroup object allows you to connect many
signal connections for an object and connect/disconnect/block/unblock them
as a group.
This is useful when using many connections on an object to ensure that they
are properly removed when changing state or disposing a third-party
object.
This has been used for years in various GNOME projects and makes sense to
have upstream instead of multiple copies.
Originally, GBindingGroup started with Builder as a way to simplify all
of the third-degree object bindings necessary around Model-Controller
objects such as TextBuffer/TextView.
Over time, it has grown to be useful in a number of scenarios outside
of Builder and has been copied into a number of projects such as GNOME
Text Editor, GtkSourceView, libdazzle, and more.
It makes sense at this point to unify on a single implementation and
include that upstream in GObject directly alongside GBinding.
On Windows, process spawning needs an external helper exe which is found
relatively to the glib DLL file. If glib has been built statically this
file doesn't exist anymore and reference path is not the DLL path
anymore but the current executable path.
This patch searches for the helper exe taking as starting point the
current executable path, relative 'bin', 'lib', 'glib' and 'gio' folders
and then gets one level up until the root path. If this search doesn't
give result then the helper exe is searched using the PATH variable.
Fix a possibility of returning a relative path, in case PATH contains
a relative path. According to the doc, the function should return an
absolute path.
Signed-off-by: Christoph Niethammer <christoph.niethammer@gmail.com>
This is an API analogue of the G_MESSAGES_DEBUG environment variable. It
is intended to be exposed outside applications (for example, as a D-Bus
interface — see follow-up commits) so that there is a uniform interface
for controlling the debug output of an application.
Helps: #1190
Integer overflows in size calculations of buffers (GArray and GPtrArray)
allow subsequent buffer overflows. This happens due to conversions
between gsize and guint.
Proof of concept demonstrations of the overflows can be found in issue
2578. They are not being added as unit tests as they require too much
memory to test.
This will affect `GArray`s which are 4GB in size, or `GPtrArray`s which
are 48GB in size.
Fixes: #2578
This fixes a bug in 7c4e6e9fbe473de0401c778c6b0c4aad27d5145a.
The original approach in that commit accidentally only checked the depth
at the leaf nodes in the variant tree, whereas actually the depth should
be checked before recursing to avoid stack overflow.
It neglected to consider that `g_variant_serialised_is_normal()` would
be recursed into by some of the `DISPATCH(_is_normal)` cases. When that
happened, the depth check was after the recursion so couldn’t prevent a
stack overflow.
Fixes: #2572
Glib cannot be built statically on Windows because glib, gobject and gio
modules need to perform specific initialization when DLL are loaded and
cleanup when unloaded. Those initializations and cleanups are performed
using the DllMain function which is not called with static builds.
Issue is known for a while and solutions were already proposed but never
merged (see: https://gitlab.gnome.org/GNOME/glib/-/issues/692). Last
patch is from version 2.36.x and since then the
"constructor/destructor" mechanism has been implemented and used in
other part of the system.
This patch takes back the old idea and updates it to the last version of
glib to allow static compilation on Windows.
WARNING: because DllMain doesn't exist anymore in static compilation
mode, there is no easy way of knowing when a Windows thread finishes.
This patch implements a workaround for glib threads created by calling
g_thread_new(), so all glib threads created through glib API will behave
exactly the same way in static and dynamic compilation modes.
Unfortunately, Windows threads created by using CreateThread() or
_beginthread/ex() will not work with glib TLS functions. If users need
absolutely to use a thread NOT created with glib API under Windows and
in static compilation mode, they should not use glib functions within
their thread or they may encounter memory leaks when the thread finishes.
This should not be an issue as users should use exclusively the glib API
to manipulate threads in order to be cross-platform compatible and this
would be very unlikely and cumbersome that they may mix up Windows native
threads API with glib one.
Closes#692
According to build system (meson.build file), G_PLATFORM_WIN32 and G_OS_WIN32
are synonym. This commit just unify the usage of this define to prepare
for the static build conditional compilation code.
../glib/gsequence.c: In function 'g_sequence_move_range':
../glib/gsequence.c:640:24: warning:
'dest_seq' may be used uninitialized in this function [-Wmaybe-uninitialized]
640 | if (dest && dest_seq == src_seq &&
| ~~~~~~~~~^~~~~~~~~~
There is not a total collation order defined over all Unicode
codepoints, so sometimes `g_utf8_collate()` can’t return a useful
result. Document that.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #517
If a seccomp policy is set up incorrectly so that it returns `EPERM` for
`close_range()` rather than `ENOSYS` due to it not being recognised, no
error would previously be reported from GLib, but some file descriptors
wouldn’t be closed, and that would cause a hung zombie process. The
zombie process would be waiting for one half of a socket to be closed.
Fix that by correctly propagating errors from `close_range()` back to the
parent process so they can be reported correctly.
Distributions which aren’t yet carrying the Docker fix to correctly
return `ENOSYS` from unrecognised syscalls may want to temporarily carry
an additional patch to fall back to `safe_fdwalk()` if `close_range()`
fails with `EPERM`. This change will not be accepted upstream as `EPERM`
is not the right error for `close_range()` to be returning.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2580
