Instead of calling xterm when it clearly does not exist and causes a silent error,
inform the user that the launch failed so they can take the right action.
Also added (transfer full) or (transfer none) annotations while I was at it.
This is the result of checking each `Returns:` line in these files. I’ve
only considered nullability and transferability, and not other (potentially
missing or incorrect) annotations.
Helps: #2227
If the first power-profile installed test fails (for example, because
xdg-desktop-portal isn’t available), correctly tear down the dbusmock
object, or it will cause setUp() to fail when the next test in the suite
is run.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2481
When first creating the monitor, correctly set its property value to the
value from the portal, rather than waiting for the portal value to
change to set it.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2481
We were lucky that this worked in some cases (the test is racy), but we
should actually run the condition check each loop, rather than when the
function is called.
Spotted by Martin Pitt:
96a8c02d24 (r54773831)
Let's explain the advantages of relying on GTlsConnection to perform
certificate verification.
Also, document that the issuer property is a little tricky, because the
issuer certificate might not be the certificate that actually gets used
in final certification path building. This is very unexpected to anybody
who is not an expert.
Because TLS certificate verification is extremely complex, the lookup
issuer function may be tempting to misuse even by experienced
developers. There is a notion that the issuer certificate will always be
used in the final certification path, but it's just not always true.
Trying to make security decisions based on the results of this function is
a trap, so let's document that.
It turns out that old versions of glib-networking actually reordered the
certificate chain to match the final verification path. This no longer
happens since a long time ago, because it was a buggy mess. Instead, we
rely on the TLS library to build the final verification path. Their path
building is not very good, but at least it's consistent. The point of
these doc updates is to clarify that only the TLS library can make
security decisions.
Document that HTTP requests may be performed to look up missing
certificates.
Finally, let's document that certificate verification using GTlsDatabase
cannot be as smart as certificate verification performed directly by
GTlsConnection.
g_win32_package_parser_enum_packages() reads beyond the end of a buffer
when doing a memcpy. With app verifier enabled on Windows, it causes
the application to crash on startup.
This change limits the memcpy to the size of the source string.
Fixes: #2454
This reverts commit 7aa0580cc5.
As stated in #2316, that commit was a workaround to allow gnome-keyring
and msmtp to continue to get their session bus address from
`DBUS_SESSION_BUS_ADDRESS`, even though they’re `AT_SECURE`. The timeout
on that workaround has expired so that commit is now being reverted.
Fixes: #2316
You need to separate the first entry in the list from the preceding
paragraph, and you should add a space before the enumerating symbol.
GTK-Doc accepts a very lax Markdown syntax, but any other tool parsing
our documentation will likely fail.
The value should be initialized to NULL before calling
g_win32_registry_key_get_value_w(), to ensure that cleanup
can be done unconditionally afterward.
To ensure that the watch is properly re-set every time, call
watch_keys() from the watch callback. Previously the watch was only
renewed after a data update was done in a worker thread, which made
no sense, since the update function was implemented in such a way
that it can (and should) be re-triggered on each key change, until
the changes stop coming, and that can only happen if we renew
the registry watcher right away.
If a key watch is renewed from the key watch callback, it results
in the callback being NULL, since we clear it after we call it.
Rearrange the function to make sure that the changes done by the
callback function are preserved properly.
This function can, in fact, return STATUS_SUCCESS. We shouldn't
assert that it doesn't.
For now interpret it just like STATUS_PENDING (i.e. APC will be called),
see how it goes (it isn't documented how the function behaves in this
case, we have to play it by ear).
Note that while we *can* use a better-documented RegNotifyChangeKeyValue() here,
it communicates back to us via event objects, which means that the registry
watcher would have to interact with the main loop directly and insert its
events (plural; one event per key) there. That would make the API more complicated.
Whereas the internal NT function communicates by calling an APC - we're good
as long as something somewhere puts the thread in alertable state.
When attempting to test Windows support for building libadwaita, since we are
using multiple GResource files, one would hit linker errors where multiple
definitions of the following symbols have been defined, when
glib-compile-resources was invoked without manual register:
resource_constructor_wrapper
resource_destructor_constructor
_arrayresource_constructor
_arrayresource_destructor
In order to avoid that, just prefix the definitions of resource_constructor
and resource_destructor, like what we do when --manual-register is used, with
what we pass in with --c-name so that we ensure that we do not end up in such
name collisions.
Port all existing calls in GLib to the new API so that they can receive
more detailed error information (although none of them actually make use
of it at the moment).
This also serves to test the new API better through use.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #203
The `g_file_trash` function fails with the `Unable to find or create trash
directory` error when the global `.Trash` directory exists. This is because
the commit 7f2af262 introduced the `gboolean success` variable to signalize
the detection of the trash folder, but didn't set it in all code branches.
Since for a time this variable was not initialized the bug wasn't visible
when the trash folder existed. The bug became effective after the `success`
variable was initialized with `FALSE` by the commit c983ded0. Let's explicitly
set the `success` variable in all branches to fix the global trash dir
detection.
Fixes: https://gitlab.gnome.org/GNOME/glib/-/issues/2439
The function which calls `SetFileTime()` works with seconds and
nanosecond, but the functions which call it are doing so with seconds
and microseconds.
Fix them so they convert to nanoseconds first.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
The code appears to be dealing with time in units of 100ns, not 100µs,
so name the variable accordingly.
The rest of the arithmetic in that function appears consistent and
correct.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
The modification time test creates a file, gets the modification time in
seconds, then gets the modification time in microseconds and assumes
that the difference between the two has to be above 0.
As rare as this may be, it can happen:
$ stat g-file-info-test-50A450 -c %y
2021-07-06 18:24:56.000000767 +0100
Change the test to simply assert that the difference not negative to
handle this case.
This is necessary when building glib with icecc. Icecc splits the build
process into two parts. The file is locally preprocessed with
-fdirectives-only to resolve any includes. This adds linemarkers to the
intermediate file. Without the new-line at the end of the file this:
#include "gconstructor_as_data.h"
#include "glib/glib-private.h"
Is turned into this:
const char gconstructor_code[] = "...";# 1 "glib/glib-private.h"
...
The result is a compile error:
In file included from ../glib/gio/glib-compile-resources.c:45:
gio/gconstructor_as_data.h:1: error: stray '#' in program
gio/gconstructor_as_data.h:1: error: expected identifier or '(' before numeric constant
In file included from ../glib/glib/glib-private.h:22,
from gio/gconstructor_as_data.h:2,
from ../glib/gio/glib-compile-resources.c:45:
../glib/glib/gwakeup.h:27:1: error: unknown type name 'GWakeup'
../glib/glib/gwakeup.h:28:42: error: unknown type name 'GWakeup'
../glib/glib/gwakeup.h:30:42: error: unknown type name 'GWakeup'
../glib/glib/gwakeup.h:32:42: error: unknown type name 'GWakeup'
../glib/glib/gwakeup.h:33:42: error: unknown type name 'GWakeup'
In file included from gio/gconstructor_as_data.h:2,
from ../glib/gio/glib-compile-resources.c:45:
../glib/glib/glib-private.h:98:3: error: unknown type name 'GWakeup'
../glib/glib/glib-private.h:99:58: error: unknown type name 'GWakeup'
../glib/glib/glib-private.h💯58: error: unknown type name 'GWakeup'
../glib/glib/glib-private.h:102:58: error: unknown type name 'GWakeup'
../glib/glib/glib-private.h:103:58: error: unknown type name 'GWakeup'
In file included from gio/gconstructor_as_data.h:2,
from ../glib/gio/glib-compile-resources.c:45:
../glib/glib/glib-private.h:164:53: warning: file "../glib/gio/glib-compile-resources.c" linemarker ignored due to incorrect nesting
To avoid this, generate gconstructor_as_data.h with a new-line at the end
of the file.
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
This helps to void deadlocks when two processes call interfaces on each
other one of them being org.freedesktop.DBus.ObjectManager.
Signed-off-by: Guido Günther <agx@sigxcpu.org>
The current code is unsafe to use from multiple threads at once.
GIOStream functions like this are supposed to be semi-threadsafe. It's
allowed for them to be called on both a reader thread and a writer
thread at the same time. Of course, it's still tricky and dangerous,
because it's only *really* threadsafe if the handshake has finished,
and API users have no plausible way to know that because the API
does not require performing an explicit handshake operation. But that's
a glib-networking problem. We can at least avoid the most obvious
threadsafety issue here in the API layer.
Note that we'll need to implement the new vfunc in glib-networking for
this to actually work.
Fixes#2393
The documentation for `g_bus_watch_name()` implies that the
`GDestroyNotify` for the user data will be called in the current thread
default `GMainContext`. Currently, it could be called in any thread, as
`client_unref()` can be called in any thread.
Fix that by deferring it to an idle source if `client_unref()` finalises
the `Client` object in a different thread.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
These were missing from the test before the previous commit ported from
`GMainLoop` to `GMainContext`.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
It makes combination exit conditions a lot easier than when using
`g_main_loop_quit()` from different callbacks.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
The first sentence incorrectly said that it checked the type of the
value, and then the second sentence explicitly said it was a programmer
error to give a value of the wrong type.
According to the code, the second sentence is correct.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2425
WebKit wants these private key properties to be readable in order to
implement a deserialization function. Currently they are read-only
because at the time GTlsCertificate was originally designed, the plan
was to support PKCS#11-backed private keys: private keys that are stored
on a smartcard, where the private key is completely unreadable. The
design goal was to support both memory-backed and smartcard-backed
private keys with the same GTlsCertificate API, abstracting away the
implementation differences such that code using GTlsCertificate doesn't
need to know the difference.
The original PKCS#11 implementation was never fully baked and at some
point in the past I deleted it all. It has since been replaced with a
new implementation, including a GTlsCertificate:private-key-pkcs11-uri
property, which is readable. So our current API already exposes the
differences between normal private keys and PKCS#11-backed private keys.
The point of making the private-key and private-key-pem properties
write-only was to avoid exposing this difference.
Do we have to make this API function readable? No, because WebKit could
be just as well served if we were to expose serialize and deserialize
functions instead. But WebKit needs to support serializing and
deserializing the non-private portion of GTlsCertificate with older
versions of GLib anyway, so we can do whatever is nicest for GLib. And I
think making this property readable is nicest, since the original design
reason for it to not be readable is now obsolete. The disadvantage to
this approach is that it's now possible for an application to read the
private-key or private-key-pem property, receive NULL, and think "this
certificate must not have a private key," which would be incorrect if
the private-key-pkcs11-uri property is set. That seems like a minor
risk, but it should be documented.
On Unix platforms, wait() and friends yield an integer that encodes
how the process exited. Confusingly, this is usually not the same as
the integer passed to exit() or returned from main(): conceptually it's
an integer encoding of this tagged union:
enum { EXITED, SIGNALLED, ... } tag;
union {
int exit_status; /* if EXITED */
struct {
int terminating_signal;
bool core_dumped;
} terminating_signal; /* if SIGNALLED */
...
} detail;
Meanwhile, on Windows, wait statuses and exit statuses are
interchangeable.
I find that it's clearer what is going on if we are consistent about
referring to the result of wait() as a "wait status", and the value
passed to exit() as an "exit status".
GSubprocess already gets this right: g_subprocess_get_status() returns
the wait status, while g_subprocess_get_exit_status() genuinely returns
the exit status. However, the GSpawn family of APIs has tended to
conflate the two.
Confusingly, g_spawn_check_exit_status() has always checked a wait
status, and it would not be correct to pass an exit status to it; so
let's deprecate it in favour of g_spawn_check_wait_status(), which
does the same thing that g_spawn_check_exit_status() always did.
Code that needs backwards-compatibility with older GLib can use:
#if !GLIB_CHECK_VERSION(2, 69, 0)
#define g_spawn_check_wait_status(x) (g_spawn_check_exit_status (x))
#endif
Signed-off-by: Simon McVittie <smcv@collabora.com>
Confusingly, g_spawn_check_exit_status() takes a wait status, not an
exit status, so passing g_subprocess_get_exit_status() to it is
incorrect (although both encodings happen to use 0 to encode success
and a nonzero value to encode failure, so in practice this probably
had the desired effect).
Signed-off-by: Simon McVittie <smcv@collabora.com>
Following on from the previous commit, some explicit
`g_main_context_wakeup()` calls were missing from the test code which
only uses `GMainContext`.
Add them, and also add some assertions to check that these functions are
being called in the expected thread (as the code comments say).
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
This is a bit of a compromise. Since the option parsing in
`GApplication` is built on `GOptionContext`, there’s no way to
reliably indicate that a given option was passed by the user, other than
by its value changing. If the default value is zero, but the user
explicitly passed zero, nothing changes, so it’s not obvious that the
option was explicitly provided.
When just `GOptionContext` is being used, this is fine, as that’s
obvious what will happen from the way the API is built. With
`GApplication::handle-local-options`, though, the `GVariantDict`
provided by GLib to the callback claims to only contain the values of
the options provided by the user, and no defaults.
It’s not actually possible for GLib to do that reliably.
Previously, GLib was dropping all numeric values which were zero valued
(i.e. the defaults), as they *could* have been the defaults. It seems
like a slightly better behaviour to instead *not* drop those numeric
values, and err on the side of reporting some defaults as user-provided
(even if they weren’t) rather than dropping some user-provided values
which happen to be the defaults.
This adds a test for the case of parsing a double; the cases for
integers are analogous.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2329
The tests in `gdbus-names.c` use a mixture of `GMainLoop` and iterating
a `GMainContext` directly. Some of the helper functions based around the
`OwnNameData` struct use the `loop` `GMainLoop` even when called from
tests like `watch_with_different_context()` which themselves use
`GMainContext` directly.
Thus, it’s possible for the `GMainLoop` to not be running, while the
test is iterating on `g_main_context_iteration()`. In this case,
`g_main_loop_quit()` is a no-op and will not wake up the `GMainContext`.
This causes the test to livelock in around 1 in 1200 test runs.
Fix this by adding an explicit `g_main_context_wakeup()` call after each
`g_main_loop_quit()` call. A more comprehensive fix would be to port all
the tests in this file to iterating `GMainContext` directly, and drop
all the `GMainLoop` usage, but I don’t have time for that right now.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
If `g_file_monitor_source_dispatch()` drops the last reference to its
`GLocalFileMonitor`, a deadlock will occur, because disposing the
`GLocalFileMonitor` causes synchronous disposal of the
`GFileMonitorSource`, and hence an attempt to re-lock the already-locked
mutex in the `GFileMonitorSource`.
Fix that by dropping the reference to the `GLocalFileMonitor` after
unlocking.
Diagnosed by Ting-Wei Lan. The bug was originally introduced by me in
commit 592a13b483.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Relax the requirement for the test to only be compiled/run under gcc,
since a version of LLVM was released which supports `--add-symbol`.
`objcopy` should be overrideable to be `llvm-objcopy` by using a machine
file as per https://mesonbuild.com/Machine-files.html#binaries.
Suggested and tested by Grigory Vasilyev.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2423
Clarify that the terms ‘GUID’ and ‘UUID’ are used interchangeably in the
context of D-Bus, and that neither of them are an RFC 4122 UUID.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Update several links to allow the remote to use its configured default
branch name, rather than specifying `master` as the default branch name.
This will help avoid breakage if any of these projects rename their
default branch in the future.
Fix a few of the links where they were hitting redirects or had moved.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2348
Since commit 87e19535fe, the ETag check when writing out a file through
a symlink (following the symlink) has been incorrectly using the ETag
value of the symlink, rather than the target file. This is incorrect
because the ETag should represent the file content, not its metadata or
links to it.
Fix that, and add a unit test.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2417
This adds g_tls_connection_get_protocol_version(),
g_tls_connection_get_ciphersuite_name(), and DTLS variants. This will
allow populating TLS connection information in the WebKit web inspector.
This is WIP because we found it's not quite possibly to implement
correctly with GnuTLS. See glib-networking!151.
This is the result of checking each `Returns:` line in these files. I’ve
only considered nullability and not other (potentially missing or
incorrect) annotations.
Including suggestions by Simon McVittie.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2227
In a PKCS#11 operation there are multiple types of PINs possibly
needed and these flags add a way to expose them to the user.
This design exactly matches gnutls' gnutls_pin_flag_t API.
This changeset exposes
* `not-valid-before`
* `not-valid-after`
* `subject-name`
* `issuer-name`
on GTlsCertificate provided by the underlying TLS Backend.
In order to make use of these changes,
see the related [glib-networking MR][glib-networking].
This change aims to help populate more of the [`Certificate`][wk-cert]
info in the WebKit Inspector Protocol on Linux.
This changeset stems from work in Microsoft Playwright to [add more info
into its HAR capture][pw] generated from the Inspector Protocol events
and will bring feature parity across WebKit platforms.
[wk-cert]: 8afe31a018/Source/JavaScriptCore/inspector/protocol/Security.json
[pw]: https://github.com/microsoft/playwright/pull/6631
[glib-networking]: https://gitlab.gnome.org/GNOME/glib-networking/-/merge_requests/156
The `GApplication` must be registered before calling
`g_application_mark_busy()`. Document that, and add a guard.
The same is true for `g_application_unmark_busy()`, but the existing
documentation and guard for `busy_count > 0` are enough.
For the reasons given in the new bit of documentation, GDBusProxy should
not be used for connecting to stateless D-Bus services which may be
restarted at any point.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://gitlab.gnome.org/GNOME/glib/issues/1036
Include the base URI in the `g_test_bug()` calls instead. This resolves
inconsistencies between the old bug base (bugzilla.gnome.org) and the
new bug base (gitlab.gnome.org). It also has the advantage that the URI
passed to `g_test_bug()` is now clickable in the code editor, rather
than being split across two locations.
See https://gitlab.gnome.org/GNOME/glib/-/merge_requests/275#note_303175
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Since commit ab285899a6 ('gdbusconnection: Document main context
iteration for unsubscript'), we document when the user is guaranteed
that all resources are gone after g_dbus_connection_signal_unsubscribe().
This is not merely an implementation detail, it's something that the
user needs to be able to rely on. It is good that this is documented.
However, libnm does something different ([1]). It registers to several D-Bus
signals without providing a GDestroyNotify. After unsubscription, it schedules
another idle action with lower priority and uses that to know when
cleanup is complete. I think this is a useful alternative and should
also be guaranteed and documented to work.
Also note that this isn't just some implementation detail that currently
happens to work. GDBusConnection tightly integrates with GMainContext and it
works by scheduling idle sources with G_PRIORITY_DEFAULT priority. It needs to
schedule all events with this same priority, otherwise the ordering is not
preserved. At this point, with GDBusConnection working this way, this is no longer
something that can reasonably be any different. It's how GDBusConnection fundamentally
works, and a user must be able to rely on that. As such, this new promise isn't
something that we would want to break in the future.
Thus document it.
[1] a55c10c6cb/src/libnm-client-impl/nm-client.c (L7918)
This fixes a bug where the family flag was ignored in lookup_data_new,
causing the resolver to call getaddrinfo with no hints set when clearly
the family hint should have been set.
gio/tests/unix-streams.c: In function ‘test_write_async_wouldblock’:
gio/tests/unix-streams.c:692:17: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘gint’ {aka ‘int’}
692 | for (i = 0; i < 4 * pipe_capacity; i++)
| ^
gio/tests/unix-streams.c: In function ‘test_writev_async_wouldblock’:
gio/tests/unix-streams.c:780:17: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘gint’ {aka ‘int’}
780 | for (i = 0; i < 4 * pipe_capacity; i++)
| ^
An application that has been shut down is still marked as registered
even if its implementation has been already destroyed.
This may lead to unguarded crashes when calling functions that have
assumptions for being used with registered applications.
So, when an application is registered, mark it as unregistered just
before destroying its implementation and after being shut down, so that
we follow the registration process in reversed order.
Added tests
gio/tests/socket-common.c: In function ‘socket_address_from_string’:
gio/tests/socket-common.c:50:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘long unsigned int’
50 | for (i = 0; i < G_N_ELEMENTS (unix_socket_address_types); i++)
| ^
gio/tests/gnotification-server.c: In function ‘g_notification_server_bus_acquired’:
gio/tests/gnotification-server.c:224:3: error: missing initializer for field ‘padding’ of ‘GDBusInterfaceVTable’ {aka ‘const struct _GDBusInterfaceVTable’}
224 | };
| ^
gio/tests/gdbus-proxy.c: In function ‘strv_equal’:
gio/tests/gdbus-proxy.c:158:32: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘gint’ {aka ‘int’}
158 | res = g_strv_length (strv) == count;
| ^~
gio/gkeyfilesettingsbackend.c: In function ‘convert_path’:
gio/gkeyfilesettingsbackend.c:155:15: warning: comparison of integer
expressions of different signedness: ‘gsize’ {aka ‘long unsigned int’}
and ‘gint’ {aka ‘int’}
155 | if (key_len < kfsb->prefix_len ||
| ^
gio/tests/gsettings.c: In function ‘strv_set_equal’:
gio/tests/gsettings.c:2268:41: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘gint’ {aka ‘int’}
2268 | res = g_strv_length ((gchar**)strv) == count;
| ^~
gio/tests/gdbus-testserver.c:806:1: error: missing initializer for field ‘padding’ of ‘GDBusInterfaceVTable’ {aka ‘const struct _GDBusInterfaceVTable’}
806 | };
| ^
In file included from gio/gio.h:53,
from gio/tests/gdbus-testserver.c:1:
gdbusconnection.h:395:12: note: ‘padding’ declared here
395 | gpointer padding[8];
| ^~~~~~~
gio/tests/gdbus-testserver.c: In function ‘handle_method_call’:
gio/tests/gdbus-testserver.c:334:23: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘gsize’ {aka ‘long unsigned int’}
334 | for (i = 0; i < n_elts; i++)
| ^
gio/tests/gdbus-testserver.c:343:23: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘gsize’ {aka ‘long unsigned int’}
343 | for (i = 0; i < n_elts; i++)
| ^
gio/tests/gdbus-testserver.c:352:23: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘gsize’ {aka ‘long unsigned int’}
352 | for (i = 0; i < n_elts; i++)
| ^
gio/tests/gdbus-testserver.c:361:23: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘gsize’ {aka ‘long unsigned int’}
361 | for (i = 0; i < n_elts; i++)
| ^
gio/tests/gdbus-testserver.c:370:23: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘gsize’ {aka ‘long unsigned int’}
370 | for (i = 0; i < n_elts; i++)
| ^
gio/tests/gdbus-testserver.c:379:23: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘gsize’ {aka ‘long unsigned int’}
379 | for (i = 0; i < n_elts; i++)
| ^
gio/tests/gdbus-testserver.c:388:23: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘gsize’ {aka ‘long unsigned int’}
388 | for (i = 0; i < n_elts; i++)
| ^
gio/tests/gdbus-testserver.c:397:23: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘gsize’ {aka ‘long unsigned int’}
397 | for (i = 0; i < n_elts; i++)
| ^
gio/tests/gdbus-testserver.c:406:23: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘gsize’ {aka ‘long unsigned int’}
406 | for (i = 0; i < n_elts; i++)
| ^
gio/tests/mimeapps.c: In function ‘strv_equal’:
gio/tests/mimeapps.c:31:32: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘gint’ {aka ‘int’}
31 | res = g_strv_length (strv) == count;
| ^~
gio/tests/proxy-test.c: In function ‘do_echo_test’:
gio/tests/proxy-test.c:855:25: error: comparison of integer expressions of different signedness: ‘gssize’ {aka ‘long int’} and ‘gsize’ {aka ‘long unsigned int’}
855 | for (total = 0; total < nwrote; total += nread)
| ^
gio/tests/file.c: In function ‘written_cb’:
gio/tests/file.c:358:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘size_t’ {aka ‘long unsigned int’}
358 | if (data->pos < strlen (data->data))
| ^
gio/tests/gdbus-test-codegen.c: In function ‘check_object_manager’:
gio/tests/gdbus-test-codegen.c:2344:20: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘int’
2344 | if (om_signal_id != -1)
| ^~
gio/tests/testfilemonitor.c: In function ‘check_expected_events’:
gio/tests/testfilemonitor.c:124:39: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘gsize’ {aka ‘long unsigned int’}
124 | for (i = 0, li = 0, l = recorded; i < n_expected && l != NULL;)
| ^
gio/tests/socket.c: In function ‘test_get_available’:
gio/tests/socket.c:1696:53: error: comparison of integer expressions of different signedness: ‘gssize’ {aka ‘long int’} and ‘long unsigned int’
1696 | if (g_socket_get_available_bytes (server) > sizeof (data))
| ^
gio/tests/gdbus-export.c:130:1: error: missing initializer for field ‘properties’ of ‘GDBusInterfaceInfo’ {aka ‘const struct _GDBusInterfaceInfo’}
130 | };
| ^
In file included from gio/gio.h:57,
from gio/tests/gdbus-export.c:21:
gio/gdbusintrospection.h:156:25: note: ‘properties’ declared here
156 | GDBusPropertyInfo **properties;
| ^~~~~~~~~~
...
However, GLib still can’t guarantee to do rate limiting, as the type of
rate limiting which is appropriate depends on what tasks are being run,
and the GTask thread pool is shared between all tasks (of many different
types) in a process space.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2368
gio/tests/actions.c: In function ‘strv_set_equal’:
gio/tests/actions.c:177:41: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘gint’ {aka ‘int’}
177 | res = g_strv_length ((gchar**)strv) == count;
| ^~
gio/tests/actions.c: In function ‘test_parse_detailed’:
gio/tests/actions.c:473:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
473 | for (i = 0; i < G_N_ELEMENTS (testcases); i++)
| ^
gio/tests/actions.c: In function ‘test_entries’:
gio/tests/actions.c:375:5: error: missing initializer for field ‘parameter_type’ of ‘GActionEntry’ {aka ‘const struct _GActionEntry’}
375 | { "foo", activate_foo },
| ^
In file included from gio/gio.h:31,
from gio/tests/actions.c:1:
gio/gactionmap.h:63:16: note: ‘parameter_type’ declared here
63 | const gchar *parameter_type;
| ^~~~~~~~~~~~~~
...
gio/tests/gdbus-peer-object-manager.c: In function ‘mock_interface_get_vtable’:
gio/tests/gdbus-peer-object-manager.c:111:3: error: missing initializer for field ‘padding’ of ‘GDBusInterfaceVTable’ {aka ‘struct _GDBusInterfaceVTable’}
111 | };
| ^
gio/tests/network-address.c: In function ‘main’:
gio/tests/network-address.c:1194:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
1194 | for (i = 0; i < G_N_ELEMENTS (host_tests); i++)
| ^
gio/tests/network-address.c:1201:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
1201 | for (i = 0; i < G_N_ELEMENTS (uri_tests); i++)
| ^
gio/tests/network-address.c:1208:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
1208 | for (i = 0; i < G_N_ELEMENTS (address_tests); i++)
| ^
gio/tests/network-address.c:1215:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
1215 | for (i = 0; i < G_N_ELEMENTS (address_tests); i++)
| ^
gio/tests/gsubprocess.c: In function ‘test_communicate_async’:
gio/tests/gsubprocess.c:774:3: error: missing initializer for field ‘running’ of ‘TestAsyncCommunicateData’
774 | TestAsyncCommunicateData data = { flags, 0, };
| ^~~~~~~~~~~~~~~~~~~~~~~~
gio/tests/gsubprocess.c: In function ‘test_communicate_utf8_async’:
gio/tests/gsubprocess.c:1025:3: error: missing initializer for field ‘running’ of ‘TestAsyncCommunicateData’
1025 | TestAsyncCommunicateData data = { flags, 0, };
| ^~~~~~~~~~~~~~~~~~~~~~~~
gio/tests/gsubprocess.c: In function ‘test_communicate_utf8_cancelled_async’:
gio/tests/gsubprocess.c:1058:3: error: missing initializer for field ‘running’ of ‘TestAsyncCommunicateData’
1058 | TestAsyncCommunicateData data = { flags, 0, };
| ^~~~~~~~~~~~~~~~~~~~~~~~
gio/tests/gsubprocess.c: In function ‘test_communicate_utf8_async_invalid’:
gio/tests/gsubprocess.c:1202:3: error: missing initializer for field ‘running’ of ‘TestAsyncCommunicateData’
1202 | TestAsyncCommunicateData data = { flags, 0, };
| ^~~~~~~~~~~~~~~~~~~~~~~~
gio/tests/converter-stream.c: In function ‘g_expander_converter_convert’:
gio/tests/converter-stream.c:128:21: error: comparison of integer expressions of different signedness: ‘int’ and ‘gsize’ {aka ‘long unsigned int’}
128 | for (i = 0; i < block_size; i++)
| ^
gio/tests/converter-stream.c: In function ‘g_compressor_converter_convert’:
gio/tests/converter-stream.c:234:23: error: comparison of integer expressions of different signedness: ‘long int’ and ‘gsize’ {aka ‘long unsigned int’}
234 | if (in_end - in < block_size)
| ^
gio/tests/converter-stream.c:244:21: error: comparison of integer expressions of different signedness: ‘int’ and ‘gsize’ {aka ‘long unsigned int’}
244 | for (i = 0; i < block_size; i++)
| ^
gio/tests/converter-stream.c:257:33: error: comparison of integer expressions of different signedness: ‘long int’ and ‘gsize’ {aka ‘long unsigned int’}
257 | if (v == 0 && in_end - in == block_size && (flags & G_CONVERTER_INPUT_AT_END) == 0)
| ^~
gio/tests/converter-stream.c: In function ‘test_expander’:
gio/tests/converter-stream.c:356:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘long unsigned int’
356 | for (i = 0; i < sizeof(unexpanded_data); i++)
| ^
gio/tests/converter-stream.c: In function ‘test_compressor’:
gio/tests/converter-stream.c:445:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘gsize’ {aka ‘long unsigned int’}
445 | for (i = 0; i < expanded_size; i++)
| ^
gio/tests/converter-stream.c:454:16: error: comparison of integer expressions of different signedness: ‘int’ and ‘gsize’ {aka ‘long unsigned int’}
454 | g_assert (i == expanded_size -1);
| ^~
gio/tests/converter-stream.c: In function ‘test_converter_pollable’:
gio/tests/converter-stream.c:1077:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘gsize’ {aka ‘long unsigned int’}
1077 | for (i = 0; i < expanded_size; i++)
| ^
gio/tests/converter-stream.c:1086:16: error: comparison of integer expressions of different signedness: ‘int’ and ‘gsize’ {aka ‘long unsigned int’}
1086 | g_assert (i == expanded_size -1);
| ^~
The code did not handle EOF (0 byte read) correctly. This can e.g. cause
an infinite loop if an incorrect socks proxy is configured.
Add the appropriate checks and return an G_IO_ERROR_CONNECTION_CLOSED
error if EOF is encountered.
gio/tests/converter-stream.c: In function ‘main’:
gio/tests/converter-stream.c:1220:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
1220 | for (i = 0; i < G_N_ELEMENTS (compressor_tests); i++)
| ^
gio/tests/converter-stream.c:1223:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
1223 | for (i = 0; i < G_N_ELEMENTS (truncation_tests); i++)
| ^
gio/tests/converter-stream.c:1226:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
1226 | for (i = 0; i < G_N_ELEMENTS (charset_tests); i++)
| ^
gio/tests/contenttype.c: In function ‘test_tree’:
gio/tests/contenttype.c:337:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
337 | for (i = 0; i < G_N_ELEMENTS (tests); i++)
| ^
gio/tests/contexts.c: In function ‘test_context_specific_emit’:
gio/tests/contexts.c:379:21: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘gint32’ {aka ‘int’}
379 | for (i = 0; i < g_test_rand_int_range (1, 5); i++)
| ^
gio/tests/contexts.c:383:55: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
383 | while (g_atomic_int_get (&observed_values[i]) != n)
| ^~
gio/tests/contexts.c:387:41: error: comparison of integer expressions of different signedness: ‘gint64’ {aka ‘long int’} and ‘guint64’ {aka ‘long unsigned int’}
387 | if (g_get_monotonic_time () > expiry)
| ^
gio/gsettings-tool.c: In function ‘gsettings_list_children’:
gio/gsettings-tool.c:199:30: error: comparison of integer expressions of different signedness: ‘size_t’ {aka ‘long unsigned int’} and ‘gint’ {aka ‘int’}
199 | if (strlen (children[i]) > max)
| ^
gio/gunixsocketaddress.c: In function ‘g_unix_socket_address_to_native’:
gio/gunixsocketaddress.c:217:15: error: comparison of integer expressions of different signedness: ‘gsize’ {aka ‘long unsigned int’} and ‘gssize’ {aka ‘long int’}
217 | if (destlen < socklen)
| ^
If this g_return_val_if_fail() is ever hit, then we leak arguments.
This is not very important because if your code hits
g_return_val_if_fail() you are invoking undefined behavior, a rather
more serious problem, but let's replace it with g_critical() to be
robust.
This includes a small behavior change: it returns 1 rather than 0 in
this error case.
Found by Coverity.
This function can cause significant delays when the mounted volume
is disconnected or just weird. Use IExtractIconW::GetIconLocation()
instead.
Theoretically, this should require COM to be initialized, but in my tests
this code worked just fine without calling CoInitializeEx().
On Windows gio runs a thread to update appinfo at startup.
If someone unloads gio (this happens when a dynamic gio module gets
unloaded by a program that doesn't use gio itself), there doesn't seem
to be a way to detect that until gio is already gone, and as soon as
gio is gone, the thread crashes, since it tries to execute instructions
that are no longer there.
Holding an extra reference to gio DLL fixes this, but it also prevents
gio from being unloaded, and there's no "weak references" for DLLs.
So we just pin gio and acknowledge that it will never be unloaded.
Fixes#2300Fixes#2359
1) Check that schedule_call_in_idle code branch of gdbusnamewatching.c
is working to call vanished handler in the thread which had watched the name
2) Check cancellation of vanished handler if the name is unwatched before
vanished callback is dispatched.
Closes#2011
Signed-off-by: Frederic Martinsons <frederic.martinsons@sigfox.com>
After the recent reworking of this code it was possible for `g_close()`
to be called on `fd == -1`, which is invalid. It would have reported an
error, were errors not ignored. So it was harmless, but still best to
fix.
Simplify the error handling by combining both error labels and checking
the state of `fd` dynamically.
Coverity CID: #1450834
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
The variable `gconstructor_code` (which is what’s defined by
`gconstructor_as_data_h`) is not used at all inside
`glib-compile-schemas`.
This looks like a copy/paste error from the build definition for
`glib-compile-resources` below, which does need it.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
In the 2.68 cycle we’d added 3 new enumerator elements. Due to the
preceding commit, they can now be annotated with
`GLIB_AVAILABLE_ENUMERATOR_IN_2_68`, which will make it a bit easier for
third party projects to notice when they’re using these symbols without
having bumped their GLib dependency.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2327
`""` is not a valid path (`stat()` on it returns `ENOENT`). Previously,
a full `GLocalFile` was being created, which ended up resolving to
`$CWD`, through path canonicalisation. That isn’t right.
Fix it by creating a `GDummyFile` instead, and adding a unit test.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2328
Calling `dlopen()` with `libutil.so` makes the installed tests depend on
having glibc's development files installed. To avoid this, we can work
out the runtime library name at build time and `dlopen` that instead.
This approach is [taken from libfprint][1], thanks to Marco Trevisan.
[1]: f401f399a8
`ENXIO` can be returned from `open(2)` for special files (FIFOs, device
files and domain sockets) which are not backed by anything.
This fixes the error returned by `g_file_replace()` when trying to
replace such a file, so that it now matches the documentation.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
These test all the functionality and combinations of flags I can think
of. They do not cover dynamic behaviour (for example, what would happen
if the source file is deleted by another process part-way through a call
to `g_file_replace()`).
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
The `G_FILE_CREATE_REPLACE_DESTINATION` flag is equivalent to unlinking
the destination file and re-creating it from scratch. That did
previously work, but in the process the code would call `open(O_CREAT)`
on the file. If the file was a dangling symlink, this would create the
destination file (empty). That’s not an intended side-effect, and has
security implications if the symlink is controlled by a lower-privileged
process.
Fix that by not opening the destination file if it’s a symlink, and
adjusting the rest of the code to cope with
- the fact that `fd == -1` is not an error iff `is_symlink` is true,
- and that `original_stat` will contain the `lstat()` results for the
symlink now, rather than the `stat()` results for its target (again,
iff `is_symlink` is true).
This means that the target of the dangling symlink is no longer created,
which was the bug. The symlink itself continues to be replaced (as
before) with the new file — this is the intended behaviour of
`g_file_replace()`.
The behaviour for non-symlink cases, or cases where the symlink was not
dangling, should be unchanged.
Includes a unit test.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2325
Since a following commit is going to add a new test which references
Gitlab, so it’s best to move the URI bases inside the test cases.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
When GLib code is checked out with Windows line endings (happens on Windows),
data-to-c.py embedded that line endings into generated string literal. And
then they translated to double newlines in glib-compile-resources output.
clang-cl failed to compile such files because of empty lines in the middle of
multiline macros:
#define G_MSVC_CTOR(_func,_sym_prefix) \
static void _func(void); \
To fix the issue, enable 'universal newlines' mode when reading the input in
data-to-c.py - translate both '\n' and '\r\n' to '\n'.
Fixes https://gitlab.gnome.org/GNOME/glib/-/issues/2340
This will require distributions to ensure they pass
`--localstatedir=/var` correctly to Meson, but they should be doing that
already.
See https://mesonbuild.com/Builtin-options.html#directories for details
about how Meson treats `localstatedir` differently from most other `dir`
variables.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
It’s unlikely that the machine ID will be invalid (it’s system
configuration), but it would be helpful to not propagate invalid IDs
further, since a lot of things rely on it.
It’s not easy to test this (it requires factoring out the code so it can
be used from a test program, or allowing it to load a machine ID from a
custom path), so I haven’t added unit tests. I’ve tested manually by
overriding the loaded machine ID.
Coverity CID: #1430944
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
For non-Linux UNIX systems, the label 'close_libutil:' in
'test_pollable_unix_pty()' will have no statement that goes with that
label. Just do a 'return' on non-Linux UNIX systems.
File monitor creation may fail. We should check for this, rather than
ignoring it and then spewing criticals upon improperly assuming that we
have a valid GFileMonitor rather than NULL.
In practice, creating the GFileMonitors here fail when opening a large
number of tabs in Epiphany. I'm still investigating to see why, but it
doesn't matter for the purposes of this commit.
Expand an existing unit test to check that the target FD of a
`g_subprocess_launcher_take_fd()` call doesn’t get closed when
`g_subprocess_launcher_close()` is called. Only the source FD should be
closed by the parent process.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2332
This is a regression introduced in commit 67a589e505. Previously, the
source/target FD pairs were stored in `needdup_fd_assignments`, in
consecutive entries, so source FDs had even indices and target FDs had
odd indices.
I didn’t notice that the array index was being incremented by 2 when
closing FDs, when porting from the old code. So previously the code was
only closing the source FDs; after the port, it was closing source and
target FDs.
That’s incorrect, as the target FDs are just integers in the parent
process. It’s only in the child process where they are actually FDs —
and `g_subprocess_launcher_close()` is never called in the child
process.
This resulted in some strange misbehaviours in any process which used
`g_subprocess_launcher_take_fd()` with target FDs which could have
possibly aliased with other FDs in the parent process (and which weren’t
equal to their mapped source FDs).
Thanks to Olivier Fourdan for the detailed bug report.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2332
This was correctly annotated for proper return values but in case of out
parameters it was only annotated as (optional) and not additionally as
(nullable).
This improves performance by eliminating the use of a
`GSpawnChildSetupFunc` in the common case (since that setup code has now
moved into `g_spawn*()` itself), and enables the use of the fix to avoid
the child error reporting FD being overwritten by target FD mappings,
introduced via `g_spawn_async_with_pipes_and_fds()`.
It reworks how the source/target FD mapping is stored within
`GSubprocessLauncher` to match what `g_spawn*()` uses. The two
approaches are equivalent.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2097
gio/gmemoryoutputstream.c: In function ‘g_memory_output_stream_seek’:
gio/gmemoryoutputstream.c:792:44: error: comparison of integer expressions of different signedness: ‘goffset’ {aka ‘long int’} and ‘gsize’ {aka ‘long unsigned int’}
792 | if (priv->realloc_fn == NULL && absolute > priv->len)
| ^
gio/gdummyfile.c: In function ‘unescape_string’:
gio/gdummyfile.c:485:32: error: comparison of integer expressions of different signedness: ‘long int’ and ‘size_t’ {aka ‘long unsigned int’}
485 | g_warn_if_fail (out - result <= strlen (escaped_string));
| ^~
gio/gapplication-tool.c: In function ‘app_help’:
glib/gmacros.h:806:26: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘size_t’ {aka ‘long unsigned int’}
gio/gapplication-tool.c:121:26: note: in expansion of macro ‘MAX’
121 | maxwidth = MAX(maxwidth, strlen (_(substvars[i].var)));
| ^~~
gio/gapplication-tool.c: In function ‘app_help’:
glib/gmacros.h:806:26: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘size_t’ {aka ‘long unsigned int’}
gio/gapplication-tool.c:140:20: note: in expansion of macro ‘MAX’
140 | maxwidth = MAX(maxwidth, strlen (topics[i].command));
| ^~~
gio/gapplication-tool.c: In function ‘app_help’:
gio/gapplication-tool.c:90:21: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
90 | for (i = 0; i < G_N_ELEMENTS (topics); i++)
| ^
gio/gapplication-tool.c:117:25: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
117 | for (i = 0; i < G_N_ELEMENTS (substvars); i++)
| ^
gio/gapplication-tool.c:121:25: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
121 | for (i = 0; i < G_N_ELEMENTS (substvars); i++)
| ^
gio/gapplication-tool.c:137:21: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
137 | for (i = 0; i < G_N_ELEMENTS (topics); i++)
| ^
gio/gapplication-tool.c:140:21: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
140 | for (i = 0; i < G_N_ELEMENTS (topics); i++)
| ^
Since the previous commit, the generic `GInputStream` implementation of
`skip()` is now equivalent, and results in the same calls to `lseek()`.
Heavily based on an approach by Dan Winship in
https://bugzilla.gnome.org/show_bug.cgi?id=681374.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #587
The default implementation of `g_input_stream_skip()` can skip off the
end of resizable streams, as that’s the behaviour of `g_seekable_seek()`
for that type of stream.
This has previously been fixed for local file input streams (commit
89f9615835), and a unit test added there.
However, the fix should be more generally made in `GInputStream`.
This commit reworks an old patch by Dan Winship on
https://bugzilla.gnome.org/show_bug.cgi?id=681374, which took that
approach.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #587
This is a workaround for the fact that forking without execing is not
easy to do correctly, and `GTestDBus` doesn’t do it correctly. However,
`GTestDBus` is de-facto deprecated and so putting any more effort in is
a waste.
This fixes an issue where a test would print duplicate output when
outputting to a fully-buffered FD, such as a pipe. This is because the
buffer is non-empty before the `fork()`, and ends up duplicated in the
parent and child processes, both of which later flush the duplicated
buffer contents.
Diagnosed and fix suggested by Simon McVittie.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2322
Swedish as spoken in El Salvador is not listed in
/usr/share/i18n/SUPPORTED, and in any case is probably not what we meant.
A more plausible language code would be Swedish as spoken in Sweden.
Prompted by improving the Debian packaging of GLib to generate most of
the language codes mentioned in the tests, so that we can have better
test coverage.
Signed-off-by: Simon McVittie <smcv@collabora.com>
It’s not feasible to test that the require-same-user flag can cause
authentication to fail, as that would require the build environment to
have two users available. We can, however, test that it passes when
authenticating a client and server running under the same user account.
I have manually tested that the new flag works, by running the following
as user A:
```
`$prefix/gdbus-daemon --print-env &`
gdbus call --session --dest org.freedesktop.DBus --object-path /org/freedesktop/DBus --method org.freedesktop.DBus.ListNames
```
And then running the `gdbus call` command again as user B (with the same
value for `DBUS_SESSION_BUS_ADDRESS` in the environment), which
produces:
```
Error connecting: Unexpected lack of content trying to read a line
```
(an authentication rejection)
Commenting out the use of
`G_DBUS_SERVER_FLAGS_AUTHENTICATION_REQUIRE_SAME_USER` from
`gdbusdaemon.c`, the `gdbus call` command succeeds for both users.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
This doesn’t change the `GDBusDaemon` behaviour, but does simplify the
code a little.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #1804
This eliminates a common use case for the
`GDBusAuthObserver::authorize-authenticated-peer` signal, which is often
implemented incorrectly by people.
Suggested by Simon McVittie.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #1804
These should never have been allowed; they will result in precondition
failures from the `GKeyFile` later on in the code.
A test will be added for this shortly.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fix an effective regression in commit
7781a9cbd2, which happens when
`convert_path()` is called with a `key` which contains no slashes. In
that case, the `key` is entirely the `basename`.
Prior to commit 7781a9cb, the code worked through a fluke of `i == -1`
cancelling out with the various additions in the `g_memdup()` call, and
effectively resulting in `g_strdup (key)`.
Spotted by Guido Berhoerster.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
gio/glib-compile-resources.c: In function ‘parse_resource_file’:
gio/glib-compile-resources.c:553:3: error: missing initializer for field ‘passthrough’ of ‘GMarkupParser’ {aka ‘struct _GMarkupParser’}
553 | GMarkupParser parser = { start_element, end_element, text };
| ^~~~~~~~~~~~~
gio/gio-tool-tree.c: In function ‘do_tree’:
gio/gio-tool-tree.c:124:22: error: comparison of integer expressions of different signedness: ‘unsigned int’ and ‘int’
124 | for (n = 0; n < level; n++)
| ^
gio/gio-tool-tree.c:197:21: error: comparison of integer expressions of different signedness: ‘unsigned int’ and ‘int’
197 | for (n = 0; n < level; n++)
| ^
gio/gio-tool.c: In function ‘attribute_flags_to_string’:
gio/gio-tool.c:171:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘long unsigned int’
171 | for (i = 0; i < G_N_ELEMENTS (flag_descr); i++)
| ^
gio/glib-compile-schemas.c: In function ‘parse_gschema_files’:
gio/glib-compile-schemas.c:1773:3: error: missing initializer for field ‘passthrough’ of ‘GMarkupParser’ {aka ‘struct _GMarkupParser’}
1773 | GMarkupParser parser = { start_element, end_element, text };
| ^~~~~~~~~~~~~
gio/glib-compile-schemas.c: In function ‘main’:
gio/glib-compile-schemas.c:2176:5: error: missing initializer for field ‘arg_description’ of ‘GOptionEntry’ {aka ‘struct _GOptionEntry’}
2176 | { "allow-any-name", 0, 0, G_OPTION_ARG_NONE, &allow_any_name, N_("Do not enforce key name restrictions") },
| ^
gio/glib-compile-schemas.c: In function ‘key_state_set_range’:
gio/glib-compile-schemas.c:376:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
376 | for (i = 0; i < G_N_ELEMENTS (table); i++)
| ^
gio/glib-compile-schemas.c: In function ‘key_state_serialise’:
gio/glib-compile-schemas.c:714:29: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
714 | for (i = 0; i < size / sizeof (guint32); i++)
| ^
gio/gsettings-mapping.c: In function ‘g_settings_set_mapping_int’:
gio/gsettings-mapping.c:65:23: error: comparison of integer expressions of different signedness: ‘gint64’ {aka ‘long int’} and ‘long unsigned int’
65 | if (0 <= l && l <= G_MAXUINT64)
| ^~
gio/gsettings-mapping.c: In function ‘g_settings_set_mapping_float’:
gio/gsettings-mapping.c:120:23: error: comparison of integer expressions of different signedness: ‘gint64’ {aka ‘long int’} and ‘long unsigned int’
120 | if (0 <= l && l <= G_MAXUINT64)
| ^~
gio/gsettings-mapping.c: In function ‘g_settings_get_mapping_int’:
gio/gsettings-mapping.c:224:27: error: comparison of integer expressions of different signedness: ‘gint64’ {aka ‘long int’} and ‘long unsigned int’
224 | return (0 <= l && l <= G_MAXUINT64);
| ^~
gio/gsettings-mapping.c: In function ‘g_settings_get_mapping_float’:
gio/gsettings-mapping.c:269:27: error: comparison of integer expressions of different signedness: ‘gint64’ {aka ‘long int’} and ‘long unsigned int’
269 | return (0 <= l && l <= G_MAXUINT64);
| ^~
The GDBusConnectionFlags and GDBusServerFlags can affect how we carry
out authentication and authorization, either making it more or less
restrictive, so it's desirable to "fail closed" if a program is compiled
against a new version of GLib but run against an old version.
Signed-off-by: Simon McVittie <smcv@collabora.com>
The intention here was to assert that the length of the password fits
in a gssize. Passwords more than half the size of virtual memory are
probably excessive.
Fixes: a8b204ff "gtlspassword: Forbid very long TLS passwords"
Signed-off-by: Simon McVittie <smcv@collabora.com>
gio/gsettingsschema.c: In function ‘parse_into_text_tables’:
gio/gsettingsschema.c:682:3: error: missing initializer for field ‘passthrough’ of ‘GMarkupParser’ {aka ‘struct _GMarkupParser’}
682 | GMarkupParser parser = { start_element, end_element, text };
| ^~~~~~~~~~~~~
gio/gsettingsschema.c:683:3: error: missing initializer for field ‘gettext_domain’ of ‘TextTableParseInfo’ [-Werror=missing-field-initializers]
683 | TextTableParseInfo info = { summaries, descriptions };
| ^~~~~~~~~~~~~~~~~~
gio/gmenu.c: In function ‘g_menu_remove’:
gio/gmenu.c:483:47: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
483 | g_return_if_fail (0 <= position && position < menu->items->len);
| ^
gio/gmenu.c: In function ‘g_menu_insert_item’:
gio/gmenu.c:165:32: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
165 | if (position < 0 || position > menu->items->len)
| ^
gio/glocalfileinfo.c: In function ‘get_access_rights’:
gio/glocalfileinfo.c:932:9: error: comparison of integer expressions of different signedness: ‘uid_t’ {aka ‘unsigned int’} and ‘int’
932 | uid == parent_info->owner ||
| ^~
gio/glocalfileinfo.c: In function ‘read_link’:
gio/glocalfileinfo.c:188:21: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
188 | if (read_size < size)
| ^
The public API `g_tls_password_set_value_full()` (and the vfunc it
invokes) can only accept a `gssize` length. Ensure that nul-terminated
strings passed to `g_tls_password_set_value()` can’t exceed that length.
Use `g_memdup2()` to avoid an overflow if they’re longer than
`G_MAXUINT` similarly.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2319
Don’t use an `int`, that’s potentially too small. In practical terms,
this is not a problem, since no socket address is going to be that big.
By making these changes we can use `g_memdup2()` without warnings,
though. Fewer warnings is good.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2319
Previously, the code in `convert_path()` could not handle keys longer
than `G_MAXINT`, and would overflow if that was exceeded.
Convert the code to use `gsize` and `g_memdup2()` throughout, and
change from identifying the position of the final slash in the string
using a signed offset `i`, to using a pointer to the character (and
`strrchr()`). This allows the slash to be at any position in a
`G_MAXSIZE`-long string, without sacrificing a bit of the offset for
indicating whether a slash was found.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2319
This allows it to handle strings up to length `G_MAXSIZE` — previously
it would overflow with such strings.
Update the several copies of it identically.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2319
Previously it was handled as a `gssize`, which meant that if the
`stop_chars` string was longer than `G_MAXSSIZE` there would be an
overflow.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2319
The members of `URL_COMPONENTS` (`winhttp_file->url`) are `DWORD`s, i.e.
32-bit unsigned integers. Adding to and multiplying them may cause them
to overflow the unsigned integer bounds, even if the result is passed to
`g_memdup2()` which accepts a `gsize`.
Cast the `URL_COMPONENTS` members to `gsize` first to ensure that the
arithmetic is done in terms of `gsize`s rather than unsigned integers.
Spotted by Sebastian Dröge.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2319
Convert all the call sites which use `g_memdup()`’s length argument
trivially (for example, by passing a `sizeof()`), so that they use
`g_memdup2()` instead.
In almost all of these cases the use of `g_memdup()` would not have
caused problems, but it will soon be deprecated, so best port away from
it.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2319
We're using "setuid" here as shorthand for any elevated privileges
that should make us distrust the caller: setuid, setgid, filesystem
capabilities, more obscure Linux things that set the AT_SECURE flag
(such as certain AppArmor transitions), and their equivalents on
other operating systems. This is fine if we do it consistently, but
I'm about to add a check for whether we are *literally* setuid,
which would be particularly confusing without a rename.
Signed-off-by: Simon McVittie <smcv@collabora.com>
gio/ghttpproxy.c: In function ‘g_http_proxy_connect’:
gio/ghttpproxy.c:245:17: error: comparison of integer expressions of different signedness: ‘gsize’ {aka ‘long unsigned int’} and ‘int’
245 | if (nread == -1)
| ^~
gio/ghttpproxy.c:253:22: error: comparison of integer expressions of different signedness: ‘gssize’ {aka ‘long int’} and ‘gsize’ {aka ‘long unsigned int’}
253 | if (bytes_read == buffer_length)
| ^~
Various tests have leaks where it isn't clear whether the data is
intentionally not freed, or leaked due to a bug. If we mark these
tests as TODO, we can skip them under AddressSanitizer and get the
rest to pass, giving us a baseline from which to avoid regressions.
Signed-off-by: Simon McVittie <smcv@collabora.com>
AddressSanitizer, UndefinedBehaviourSanitizer and probably others
involve adding instrumentation into the code under test, which doesn't
go well with LD_PRELOAD modules that absolutely need to be
self-contained.
Signed-off-by: Simon McVittie <smcv@collabora.com>
gio/gapplication.c: In function ‘g_application_parse_command_line’:
gio/gapplication.c:545:11: error: missing initializer for field ‘arg_description’ of ‘GOptionEntry’ {aka ‘struct _GOptionEntry’}
545 | N_("Enter GApplication service mode (use from D-Bus service files)") },
| ^~
gio/gapplication.c:557:11: error: missing initializer for field ‘arg_description’ of ‘GOptionEntry’ {aka ‘struct _GOptionEntry’}
557 | N_("Override the application’s ID") },
| ^~
gio/gapplication.c:569:11: error: missing initializer for field ‘arg_description’ of ‘GOptionEntry’ {aka ‘struct _GOptionEntry’}
569 | N_("Replace the running instance") },
| ^~
gio/gdbusconnection.c: In function ‘g_dbus_connection_register_object_with_closures’:
gio/gdbusconnection.c:5527:5: error: missing initializer for field ‘padding’ of ‘GDBusInterfaceVTable’ {aka ‘struct _GDBusInterfaceVTable’}
5527 | };
| ^
gio/gdelayedsettingsbackend.c: In function ‘delayed_backend_path_writable_changed’:
gio/gdelayedsettingsbackend.c:406:7: error: missing initializer for field ‘index’ of ‘CheckPrefixState’
406 | CheckPrefixState state = { path, g_new (const gchar *, n_keys) };
| ^~~~~~~~~~~~~~~~
With bash completion version lesser than 2.10, only prefix is defined
while for greater version it is datadir.
Closes#1054
Signed-off-by: Frederic Martinsons <frederic.martinsons@sigfox.com>
We format the message into a string twice, once for each byte-order,
but only return the one corresponding to the last byte-order to the
caller. This means we need to free the first one.
Signed-off-by: Simon McVittie <smcv@collabora.com>
- use watcher auto start flag.
- use watch_name_on_connection_with_closures.
- use an existing service name for auto start.
Closes#2011
Signed-off-by: Frederic Martinsons <frederic.martinsons@sigfox.com>
Where the early call to g_socket_set_option() fails because of
check_socket() failing due to `inited` still being FALSE.
This brings 634b692 back into working order, by fixing the regression
introduced in 39f047e.
Co-authored-by: Ole André Vadla Ravnås <oleavr@gmail.com>
gio/gapplicationimpl-dbus.c: In function ‘g_application_impl_command_line’:
gio/gapplicationimpl-dbus.c:772:3: error: ‘static’ is not at beginning of declaration
772 | const static GDBusInterfaceVTable vtable = {
| ^~~~~
gio/gapplicationimpl-dbus.c:774:3: error: missing initializer for field ‘get_property’ of ‘GDBusInterfaceVTable’ {aka ‘const struct _GDBusInterfaceVTable’}
774 | };
| ^
gio/gapplicationimpl-dbus.c: In function ‘g_application_impl_attempt_primary’:
gio/gapplicationimpl-dbus.c:364:3: error: ‘static’ is not at beginning of declaration
364 | const static GDBusInterfaceVTable vtable = {
| ^~~~~
gio/gapplicationimpl-dbus.c:368:3: error: missing initializer for field ‘padding’ of ‘GDBusInterfaceVTable’ {aka ‘const struct _GDBusInterfaceVTable’}
368 | };
| ^
gio/gmenuexporter.c: In function ‘g_dbus_connection_export_menu_model’:
gio/gmenuexporter.c:787:3: error: missing initializer for field ‘get_property’ of ‘GDBusInterfaceVTable’ {aka ‘const struct _GDBusInterfaceVTable’}
787 | };
| ^
gio/gsocketlistener.c: In function ‘g_socket_listener_close’:
gio/gsocketlistener.c:1019:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
1019 | for (i = 0; i < listener->priv->sockets->len; i++)
| ^
gio/gsocketlistener.c: In function ‘g_socket_listener_set_backlog’:
gio/gsocketlistener.c:993:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
993 | for (i = 0; i < listener->priv->sockets->len; i++)
| ^
gio/gsocketlistener.c: In function ‘add_sources’:
gio/gsocketlistener.c:612:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
612 | for (i = 0; i < listener->priv->sockets->len; i++)
| ^
gio/gactiongroupexporter.c: In function ‘g_dbus_connection_export_action_group’:
gio/gactiongroupexporter.c:542:3: error: missing initializer for field ‘get_property’ of ‘GDBusInterfaceVTable’ {aka ‘const struct _GDBusInterfaceVTable’}
542 | };
| ^
gio/gnetworkmonitornetlink.c: In function ‘remove_network’:
gio/gnetworkmonitornetlink.c:272:21: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
272 | for (i = 0; i < nl->priv->dump_networks->len; i++)
| ^
These two APIs are useful to publish an object which path content is not
controlled (e.g. dynamically built or coming from external source).
Closes#968
(Rebased and tweaked by Frederic Martinsons)
Signed-off-by: Frederic Martinsons <frederic.martinsons@sigfox.com>
This makes the tests a whole lot closer to being valgrind-clean, and
revealed a few legitimate memory leaks in amongst the noise caused by
keeping the singleton GSettingsBackend around for the lifetime of the
process.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
While all of the current callers of _g_io_module_get_default() want to
cache the returned GObject for the lifetime of the process, that doesn’t
necessarily have to be the case, so let callers make that decision on a
case-by-case basis.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
So we can still run at full speed on modern kernels in cases where an
old toolchain was used to build GLib. This is often done deliberately
to allow shipping binaries that need to run on a wide range of systems.
gio/gdbusdaemon.c: In function ‘match_new’:
gio/gdbusdaemon.c:449:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
449 | for (i = 0; i < elements->len; i++)
| ^
gio/gdbusdaemon.c: In function ‘is_key’:
gio/gdbusdaemon.c:213:11: error: comparison of integer expressions of different signedness: ‘gsize’ {aka ‘long unsigned int’} and ‘long int’
213 | if (len != key_end - key_start)
| ^~
gio/gcontenttype.c: In function ‘load_comment_for_mime_helper’:
gio/gcontenttype.c:409:3: error: missing initializer for field ‘passthrough’ of ‘GMarkupParser’ {aka ‘struct _GMarkupParser’}
409 | };
| ^
gio/gdesktopappinfo.c: In function ‘g_app_info_get_all’:
gio/gdesktopappinfo.c:4597:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
4597 | for (i = 0; i < desktop_file_dirs->len; i++)
| ^
gio/gdesktopappinfo.c: In function ‘g_desktop_app_info_search’:
gio/gdesktopappinfo.c:4517:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
4517 | for (i = 0; i < desktop_file_dirs->len; i++)
| ^
gio/gdesktopappinfo.c: In function ‘g_desktop_app_info_get_implementations’:
gio/gdesktopappinfo.c:4451:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
4451 | for (i = 0; i < desktop_file_dirs->len; i++)
| ^
gio/gdesktopappinfo.c: In function ‘g_desktop_app_info_get_desktop_ids_for_content_type’:
gio/gdesktopappinfo.c:4154:19: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
4154 | for (j = 0; j < desktop_file_dirs->len; j++)
| ^
gio/gdesktopappinfo.c:4158:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’} [-Werror=sign-compare]
4158 | for (i = 0; i < hits->len; i++)
| ^
gio/gdesktopappinfo.c: In function ‘get_list_of_mimetypes’:
gio/gdesktopappinfo.c:4116:21: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
4116 | for (i = 0; i < array->len; i++)
| ^
gio/gdesktopappinfo.c: In function ‘g_desktop_app_info_launch_uris_with_spawn’:
gio/gdesktopappinfo.c:2804:21: error: comparison of integer expressions of different signedness: ‘int’ and ‘long unsigned int’
2804 | for (i = 0; i < G_N_ELEMENTS (wrapper_argv); i++)
| ^
gio/gdesktopappinfo.c: In function ‘desktop_file_dirs_lock’:
gio/gdesktopappinfo.c:1564:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
1564 | for (i = 0; i < desktop_file_dirs->len; i++)
| ^
gio/gdesktopappinfo.c: In function ‘array_contains’:
gio/gdesktopappinfo.c:1193:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
1193 | for (i = 0; i < array->len; i++)
| ^
gio/gdesktopappinfo.c: In function ‘desktop_file_dir_unindexed_setup_search’:
gio/gdesktopappinfo.c:1114:25: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
1114 | for (i = 0; i < G_N_ELEMENTS (desktop_key_match_category); i++)
| ^
gio/gmemoryinputstream.c: In function ‘g_memory_input_stream_seek’:
gio/gmemoryinputstream.c:479:32: error: comparison of integer expressions of different signedness: ‘goffset’ {aka ‘long int’} and ‘gsize’ {aka ‘long unsigned int’}
479 | if (absolute < 0 || absolute > priv->len)
| ^
gio/glocalfilemonitor.c: In function ‘g_file_monitor_source_new’:
gio/glocalfilemonitor.c:653:3: error: missing initializer for field ‘closure_callback’ of ‘GSourceFuncs’ {aka ‘struct _GSourceFuncs’}
653 | };
| ^
gio/gsubprocess.c: In function ‘initable_init’:
gio/gsubprocess.c:587:26: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘long unsigned int’
587 | g_assert (0 < s && s < sizeof self->identifier);
| ^
gio/gsocketcontrolmessage.c: In function ‘g_socket_control_message_deserialize’:
gio/gsocketcontrolmessage.c:189:17: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
189 | for (i = 0; i < n_message_types; i++)
| ^
gio/gsubprocess.c: In function ‘child_setup’:
gio/gsubprocess.c:271:56: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
271 | if (child_data->fds[i] != -1 && child_data->fds[i] != i)
| ^~
gio/gsocket.c: In function ‘g_socket_send_message_with_timeout’:
gio/gsocket.c:4528:23: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘const unsigned int’}
4528 | for (i = 0; i < _message->num_vectors; i++) \
| ^
gio/gsocket.c: In function ‘g_socket_send_message_with_timeout’:
gio/gsocket.c:4543:19: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘const unsigned int’}
4543 | for (i = 0; i < _message->num_control_messages; i++) \
| ^
gio/gsocket.c: In function ‘g_socket_send_messages_with_timeout’:
gio/gsocket.c:5133:19: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
5133 | for (i = 0; i < num_messages; ++i)
| ^
gio/gsocket.c:5152:33: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
5152 | for (num_sent = 0; num_sent < num_messages;)
| ^
gio/gsimpleproxyresolver.c: In function ‘ignore_host’:
gio/gsimpleproxyresolver.c:271:18: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
271 | for (i = 0; i < priv->ignore_ips->len; i++)
| ^
The explanation of this bug has been mentioned in !1823, basically
it fixes some possible integer overflow when message buffer size
is more than G_MAXSSIZE.
gio/gpollableoutputstream.c: In function ‘g_pollable_output_stream_default_writev_nonblocking’:
gio/gpollableoutputstream.c:217:15: error: comparison of integer expressions of different signedness: ‘gssize’ {aka ‘long int’} and ‘gsize’ {aka ‘const long unsigned int’}
217 | if (res < vectors[i].size)
| ^
gio/goutputstream.c: In function ‘g_output_stream_real_writev’:
gio/goutputstream.c:2347:15: error: comparison of integer expressions of different signedness: ‘gssize’ {aka ‘long int’} and ‘gsize’ {aka ‘const long unsigned int’}
2347 | if (res < vectors[i].size)
| ^
gio/gcredentials.c: In function ‘linux_ucred_check_valid’:
gio/gcredentials.c:317:22: error: comparison of integer expressions of different signedness: ‘uid_t’ {aka ‘unsigned int’} and ‘int’
317 | || native->uid == -1
| ^~
gio/gcredentials.c:318:22: error: comparison of integer expressions of different signedness: ‘gid_t’ {aka ‘unsigned int’} and ‘int’
318 | || native->gid == -1)
| ^~
gio/gcredentials.c: In function ‘g_credentials_set_unix_user’:
gio/gcredentials.c:639:29: error: comparison of integer expressions of different signedness: ‘uid_t’ {aka ‘unsigned int’} and ‘int’
639 | g_return_val_if_fail (uid != -1, FALSE);
| ^~
Split out XDG_CURRENT_DESKTOP handling to a separate function and make
sure that it drops all the invalid entries properly. Earlier a bad
entry could slip through the checks by sitting just after another bad
entry, like in env being set to `invalid1!:invalid2!`, where
`invalid2!` could slip the checks.
It occasionally fails in CI with output like:
```
196/274 glib:gio / gdbus-connection-slow FAIL 0.54 s (killed by signal 6 SIGABRT)
--- command ---
G_TEST_BUILDDIR='/builds/pwithnall/glib/_build/gio/tests' G_TEST_SRCDIR='/builds/pwithnall/glib/gio/tests' GIO_MODULE_DIR='' /builds/pwithnall/glib/_build/gio/tests/gdbus-connection-slow
--- stdout ---
\# random seed: R02S4eb186e89e2472eedd11538b37192543
1..2
\# Start of gdbus tests
\# Start of connection tests
Bail out! GLib-GIO:ERROR:../gio/tests/gdbus-connection-slow.c:98:test_connection_flush: assertion failed (error == NULL): Child process killed by signal 11 (g-exec-error-quark, 19)
--- stderr ---
**
GLib-GIO:ERROR:../gio/tests/gdbus-connection-slow.c:98:test_connection_flush: assertion failed (error == NULL): Child process killed by signal 11 (g-exec-error-quark, 19)
cleaning up pid 12991
```
which is not very helpful. Add some more debug output to print the
stdout and stderr of the child process, to hopefully give an insight
into why it’s dying with signal 11 (sigsegv).
I can’t reproduce the sigsegv locally.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
As with previous commits, this could have been used to load private data
for an unprivileged caller.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2168
It could have been used to load private data which would not normally be
accessible to an unprivileged caller.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2168
Its components are used to build filenames, so if the value of
`XDG_CURRENT_DESKTOP` comes from an untrusted caller (as can happen in
setuid programs), using it unvalidated may be unsafe.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2168
As with the previous commit, it’s unsafe to trust the environment when
running as setuid, as it comes from an untrusted caller. In particular,
with D-Bus, the caller could set up a fake ‘system’ bus which fed
incorrect data to this process.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2168
Even if the modules in the given directory never get chosen to be used,
loading arbitrary code from a user-provided directory is not safe when
running as setuid, as the process’ environment comes from an untrusted
source.
Also ignore `GIO_EXTRA_MODULES`.
Spotted by Simon McVittie.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2168
Clang says:
../gio/glocalfile.c:2090:11: warning: variable 'success' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
if (trashdir == NULL)
^~~~~~~~~~~~~~~~
../gio/glocalfile.c:2133:12: note: uninitialized use occurs here
if (!success)
^~~~~~~
../gio/glocalfile.c:2090:7: note: remove the 'if' if its condition is always true
if (trashdir == NULL)
^~~~~~~~~~~~~~~~~~~~~
../gio/glocalfile.c:2041:23: note: initialize the variable 'success' to silence this warning
gboolean success;
^
= 0
So just do that.
Most variables were, but a few were not declared as local, and hence
leaked into the calling environment every time someone tab-completed the
`gio` command.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #2275
- When querying a TCP socket, getsockopt() may succeed but the resulting
`optlen` will be zero. This means we'd previously be reading
uninitialized stack memory in such cases.
- After a file-descriptor has gone through FD-passing, getsockopt() may
fail with EINVAL. At least this is the case with TCP sockets.
- While at it also use SOL_LOCAL instead of hard-coding its value.
Contrary to what the WSARecvFrom seem to imply, a UDP socket is perfectly recoverable and usable after a WSAECONNRESET error (and, I assume, WSAENETRESET).
However GSocket condition has the FD_READ bit set after a UDP socket fails with WSAECONNRESET, even if no data is available on the socket anymore; this causes select calls to report the socket as readable when, in fact, it's not.
The change resets FD_READ flag on a socket upon the above error conditions; there's no 'if' to filter between datagram and stream sockets as the change should be harmless in the case of stream sockets which are, however, very unlikely to be usable after a WSAECONNRESET.
The list is sorted in ascending order, which means that to put
verbs alphabetically we need to sort ealier verbs with -1. Same for
the "open" verb and the preferred verb (if any).
* UWP apps that have low registry footprint might end up with chosen_handler == NULL.
Ensure that this doesn't happen.
* UWP apps don't need verbs for URIs, but we do need verbs to have a link to an app
(since handlers don't contain app fields). Work around this by adding an "open" verb
to each UWP URI handler.
* Duplicate the code that inserts extension handler verbs into the app to also insert
URI handler verbs. This allows URI-only apps to be used correctly later on (otherwise
GLib errors out, saying that the app has no verbs).
Use pretty name as the result of _name(), if available. This is
more in line with what .desktop files return. Canonical name
may be completely unintelligible.
MSDN doesn't say much on this subject, but i've seen apps in the wild
that have the "shell" subkey with verbs *either* in the root app key *or*
in the "Capabilities" subkey of the root key. Accommodate either case by trying both
(root key gets a priority, since this is how MS Address Book is registered -
assume that MS knows how to do this the right way).
This function enumerates all user-accessible UWP packages
and calls the user-provided callback for each package.
This can be used to make GLib aware of the UWP applications
installed in the system.
The function works by using IPackageManager/IPackage UWP interfaces
and XmlLite COM library to parse package manifests.
The function requires COM, and initializes it to a single-thread
appartment model. To ensure this doesn't break anything, either
only use it in a separate thread (COM is initialized on a per-thread
basis), or make sure that the main thread also uses the same COM
model (it's OK to initialize COM multiple times, as long as the same
model is used and as long as init/uninit calls are paired correctly).
MinGW-w64 lacks the appropriate headers, so we have to add them
here. Note that these only have the C versions (normally these
things come in both C and C++ flavours), since that's what we use.
Also note that some of the functions that we don't use (but must
describe to maintain binary compatibility) were altered to use
IUnknown (basically, an untyped pointer) instead of the appropriate
object types, as adding these types would require other types,
which would pull even more types, forcing us to drag half of the
UWP headers in here. By replacing unused types with IUnknown we
can trim a lot of branches from the dependency graph.
This is a COM object that implements IStream by using a HANDLE
and WinAPI file functions to access the file (only a file; pipes
are not supported). Only supports synchronous access (this is
a feature - the APIs that read from this stream internally will
never return the COM equivalent of EWOULDBLOCK, which greatly
simplifies their use).
Just embed a PNG instead. gdk-pixbuf deprecated its pixdata support in
version 2.32, in 2015.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #1281
gio/gcredentials.c: In function ‘g_credentials_to_string’:
gio/gcredentials.c:238:31: error: comparison of integer expressions of different signedness: ‘uid_t’ {aka ‘unsigned int’} and ‘int’
238 | if (credentials->native.uid != -1)
| ^~
gio/gcredentials.c:240:31: error: comparison of integer expressions of different signedness: ‘gid_t’ {aka ‘unsigned int’} and ‘int’
240 | if (credentials->native.gid != -1)
| ^~
gio/gfileattribute.c: In function ‘escape_byte_string’:
gio/gfileattribute.c:286:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long unsigned int’}
286 | for (i = 0; i < len; i++)
| ^
gio/gfileattribute.c:299:21: error: comparison of integer expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long unsigned int’}
299 | for (i = 0; i < len; i++)
| ^
gio/gicon.c: In function ‘g_icon_to_string_tokenized’:
gio/gicon.c:165:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
165 | for (i = 0; i < tokens->len; i++)
| ^
gio/gfileinfo.c: In function ‘g_file_info_remove_attribute’:
gio/gfileinfo.c:706:9: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
706 | if (i < info->attributes->len &&
| ^
Fix signedness warning in gio/gfileinfo.c:g_file_info_create_value()
gio/gfileinfo.c: In function ‘g_file_info_create_value’:
gio/gfileinfo.c:1084:9: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
1084 | if (i < info->attributes->len &&
| ^
Fix signedness warning in gio/gfileinfo.c:matcher_matches_id()
gio/gfileinfo.c: In function ‘matcher_matches_id’:
gio/gfileinfo.c:2624:21: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
2624 | for (i = 0; i < matcher->sub_matchers->len; i++)
| ^
Fix signedness warnings in gio/gfileinfo.c:g_file_attribute_matcher_enumerate_namespace()
gio/gfileinfo.c: In function ‘g_file_attribute_matcher_enumerate_namespace’:
gio/gfileinfo.c:2713:21: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
2713 | for (i = 0; i < matcher->sub_matchers->len; i++)
| ^
gio/gfileinfo.c:2715:27: error: comparison of integer expressions of different signedness: ‘guint32’ {aka ‘unsigned int’} and ‘int’
2715 | if (sub_matchers[i].id == ns_id)
| ^~
Fix signedness warning in gio/gfileinfo.c:g_file_attribute_matcher_enumerate_next()
gio/gfileinfo.c: In function ‘g_file_attribute_matcher_enumerate_next’:
../glib.git/gio/gfileinfo.c:2752:13: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’} [-Werror=sign-compare]
2752 | if (i < matcher->sub_matchers->len)
| ^
gio/gfileinfo.c: In function ‘g_file_info_list_attributes’:
gio/gfileinfo.c:645:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
645 | for (i = 0; i < info->attributes->len; i++)
| ^
gio/gfileinfo.c: In function ‘g_file_info_has_namespace’:
gio/gfileinfo.c:610:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
610 | for (i = 0; i < info->attributes->len; i++)
| ^
gio/gfileinfo.c: In function ‘g_file_info_find_value’:
gio/gfileinfo.c:543:9: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
543 | if (i < info->attributes->len &&
| ^
gio/gfileinfo.c: In function ‘g_file_info_clear_status’:
gio/gfileinfo.c:499:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
499 | for (i = 0; i < info->attributes->len; i++)
| ^
gio/gfileinfo.c: In function ‘g_file_info_set_attribute_mask’:
gio/gfileinfo.c:453:21: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
453 | for (i = 0; i < info->attributes->len; i++)
| ^
gio/gfileinfo.c: In function ‘g_file_info_copy_into’:
gio/gfileinfo.c:385:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
385 | for (i = 0; i < dest_info->attributes->len; i++)
| ^
gio/gfileinfo.c: In function ‘g_file_info_finalize’:
gio/gfileinfo.c:327:17: error: comparison of integer expressions of different signedness: ‘int’ and ‘guint’ {aka ‘unsigned int’}
327 | for (i = 0; i < info->attributes->len; i++)
| ^
gio/gdatainputstream.c: In function ‘scan_for_chars’:
gio/gdatainputstream.c:879:40: error: comparison of integer expressions of different signedness: ‘int’ and ‘gsize’ {aka ‘long unsigned int’}
879 | for (i = 0; checked < available && i < peeked; i++)
| ^
gio/gdatainputstream.c: In function ‘scan_for_newline’:
gio/gdatainputstream.c:654:40: error: comparison of integer expressions of different signedness: ‘int’ and ‘gsize’ {aka ‘long unsigned int’}
654 | for (i = 0; checked < available && i < peeked; i++)
| ^
gio/gliststore.c: In function ‘g_list_store_insert’:
gio/gliststore.c:272:30: error: comparison of integer expressions of different signedness: ‘guint’ {aka ‘unsigned int’} and ‘gint’ {aka ‘int’}
272 | g_return_if_fail (position <= g_sequence_get_length (store->items));
| ^~
gio/gliststore.c: In function ‘g_list_store_splice’:
gio/gliststore.c:482:21: error: comparison of integer expressions of different signedness: ‘gint’ {aka ‘int’} and ‘guint’ {aka ‘unsigned int’}
482 | for (i = 0; i < n_additions; i++)
| ^
gio/gcancellable.c:773:1: error: missing initializer for field ‘closure_marshal’ of ‘GSourceFuncs’ {aka ‘struct _GSourceFuncs’}
773 | };
| ^
In file included from glib/giochannel.h:33,
from glib/glib.h:54,
from gio/gcancellable.c:22:
glib/gmain.h:277:23: note: ‘closure_marshal’ declared here
277 | GSourceDummyMarshal closure_marshal; /* Really is of type GClosureMarshal */
| ^~~~~~~~~~~~~~~
gio/gcontextspecificgroup.c: In function ‘g_context_specific_source_new’:
gio/gcontextspecificgroup.c:77:3: error: missing initializer for field ‘closure_callback’ of ‘GSourceFuncs’ {aka ‘struct _GSourceFuncs’}
77 | };
| ^
In file included from glib/giochannel.h:33,
from glib/glib.h:54,
from gobject/gbinding.h:28,
from glib/glib-object.h:22,
from gio/gcontextspecificgroup.h:23,
from gio/gcontextspecificgroup.c:22:
glib/gmain.h:276:19: note: ‘closure_callback’ declared here
276 | GSourceFunc closure_callback;
| ^~~~~~~~~~~~~~~~
gio/inotify/inotify-kernel.c: In function ‘ik_source_new’:
gio/inotify/inotify-kernel.c:377:3: error: missing initializer for field ‘finalize’ of ‘GSourceFuncs’ {aka ‘struct _GSourceFuncs’}
377 | };
| ^
In file included from glib/giochannel.h:33,
from glib/glib.h:54,
from gio/inotify/inotify-kernel.c:30:
glib/gmain.h:272:14: note: ‘finalize’ declared here
272 | void (*finalize) (GSource *source); /* Can be NULL */
| ^~~~~~~~
This commit only looks at the `Returns:` lines in the documentation, and
has examined all of them in the file. Function arguments have not been
checked.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2227
This commit only looks at the `Returns:` lines in the documentation, and
has examined all of them in the file. Function arguments have not been
checked.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2227
This commit only looks at the `Returns:` lines in the documentation, and
has examined all of them in the file. Function arguments have not been
checked.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2227
This commit only looks at the `Returns:` lines in the documentation, and
has examined all of them in the file. Function arguments have not been
checked.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2227
The version of `black` on the CI server wanted these changes. Make them
to keep the `style-check-diff` CI job from constantly failing.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Try and catch programmer errors in third-party implementations of
`dbus_register()`.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Fixes: #1188
NULL is valid return value for the g_unix_mount_get_options function
because mount options are currently provided only by libmount implementation.
However, the gio tool passes the returned value to the g_strescape function
without checking, which produces the following critical warning:
GLib-CRITICAL **: 13:47:15.294: g_strescape: assertion 'source != NULL' failed
Let's add the missing check to prevent the critical warnings.
These might help catch the problem in #2119 earlier on, and provide more
information about its root cause.
They should not affect behaviour in normal application usage.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #2119
This is technically an API break, as the following assignment may now
raise warnings in user code:
```
gchar *filename = g_osx_app_info_get_filename (app_info);
```
However, from code search it seems like the number of users of that
function is zero.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
This command will try to execute a desktop file, before that
it will load the input as a keyfile for checking its existence
and its validity (as a keyfile).
File arguments are allowed after the desktop file.
Closes#54
Signed-off-by: Frederic Martinsons <frederic.martinsons@sigfox.com>
Static analysis of the call to `g_dir_new_from_dirp()` is tricky,
because the call is across library boundaries and indirected through a
vfunc map because it’s private to libglib.
Help the static analyser by adding an assertion about the input and
output values for `g_dir_new_from_dirp()`.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
It search for attribute trash::orig-path and move the input file to it.
Possibly recreating the directory of orignal path and/or overwritting
the destination.
Closes#2098
Signed-off-by: Frederic Martinsons <frederic.martinsons@sigfox.com>
There were a couple of places where the return value wasn’t checked, and
hence failure could not be noticed.
Coverity CIDs: #1159435, #1159426
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
From:
9eb9c93275
"we found that the const security_context_t declarations in libselinux
are incorrect; const char * was intended, but const security_context_t
translates to char * const and triggers warnings on passing const char *
from the caller. Easiest fix is to replace them all with const char *."
And later marked deprecated in commit:
7a124ca275
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
These variables were already (correctly) accessed atomically. The
`volatile` qualifier doesn’t help with that.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #600
This should introduce no API changes. The
`g_dbus_error_register_error_domain()` function still (incorrectly) has
a `volatile` argument, but dropping that qualifier would be an API
break.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #600
This should introduce no API changes; there are public functions
exported by `GDBusConnection` which still have some (incorrectly)
`volatile` arguments, but dropping those qualifiers would be an API
break.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #600
These variables were already (correctly) accessed atomically. The
`volatile` qualifier doesn’t help with that.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #600
And drop the `volatile` qualifier from the variables, as that doesn’t
help with thread safety.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #600
http://isvolatileusefulwiththreads.in/c/
It’s possible that the variables here are only marked as volatile
because they’re arguments to `g_once_*()`. Those arguments will be
modified in a subsequent commit.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #600
These tests were originally written using the output directly from a
fuzzer which had triggered the bugs we’re testing for. However, that
means they’re liable to no longer test what they’re intended to test if
the `GDBusMessage` parsing code is changed to (for example) check for
certain errors earlier in future.
It’s better to only have one invalidity in each binary blob, so change
the test messages to all be valid apart from the specific thing they’re
testing for.
The changes were based on reading the D-Bus specification directly:
https://dbus.freedesktop.org/doc/dbus-specification.html
During these changes I found one problem in
`test_message_parse_deep_header_nesting()` where it wasn’t actually
nesting variants in the header deeply enough to trigger the bug it was
supposed to be testing for. Fixed that.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #1963
This commit is the unmodified results of running
```
black $(git ls-files '*.py')
```
with black version 19.10b0. See #2046.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Set counters for the number of running tasks and
for the max. threadpool size. These are meant to
get a sense for whether G_TASK_POOL_SIZE and related
constants are still suitable for current gio and
GTask usage patterns.
Previously it was considered a programming error to call these on
subprocesses created without the correct flags, but for bindings this
distinction is difficult to handle automatically.
Returning NULL instead does not cause any inconsistent behaviour and
simplifies the API.
As hidden file caches currently work, every look up on a directory caches
its .hidden file contents, and sets a 5s timeout to prune the directory
from the cache.
This creates a problem for usecases like Tracker Miners, which is in the
business of inspecting as many files as possible from as many directories
as possible in the shortest time possible. One timeout is created for each
directory, which possibly means gobbling thousands of entries in the hidden
file cache. This adds as many GSources to the glib worker thread, with the
involved CPU overhead in iterating those in its main context.
To fix this, use a unique timeout that will keep running until the cache
is empty. This will keep the overhead constant with many files/folders
being queried.
Continue to allow overriding the keyring dir, but don’t automatically
create it when running as root.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Coverity CID: #1432485
This is a regression from !1686. The tmp_error is no longer valid after
it is "considered" and cannot be used at this point. We should print the
error earlier instead.
Fixes#2233
This incidentally also exercises the intended pattern for sending fds in
a D-Bus message: the fd list is meant to contain exactly those fds that
are referenced by a handle (type 'h') in the body of the message, with
numeric handle value n corresponding to g_unix_fd_list_peek_fds(...)[n].
Being able to send and receive file descriptors that are not referenced by
a handle (as in OpenFile here) is a quirk of the GDBus API, and while it's
entirely possible in the wire protocol, other D-Bus implementations like
libdbus and sd-bus typically don't provide APIs that make this possible.
Reproduces: https://gitlab.gnome.org/GNOME/glib/-/issues/2074
Signed-off-by: Simon McVittie <smcv@collabora.com>
In the D-Bus wire protocol, the handle type (G_VARIANT_TYPE_HANDLE, h)
is intended to be an index/pointer into the implementation's closest
equivalent of GUnixFDList: its numeric value has no semantic meaning
(in the same way that the numeric values of pointers have no semantic
meaning), but a handle with value n acts as a reference to the nth fd
in the fd list.
GDBus provides a fairly direct mapping from the wire protocol to the
C API, which makes it technically possible to attach and use fds
without ever referring to them in the message body, and some
GLib-centric D-Bus APIs rely on this.
However, the other major implementations of D-Bus (libdbus and sd-bus)
transparently replace file descriptors with handles when building
messages, and transparently replace handles with file descriptors when
parsing messages. This means they cannot implement D-Bus APIs that do
not follow the conventional meaning of handles as indexes/pointers into
an equivalent of GUnixFDList.
For interoperability, we should encourage D-Bus API designers to follow
the convention, even though code written against GDBus doesn't strictly
need to do so.
Signed-off-by: Simon McVittie <smcv@collabora.com>
Suppose we are sending a 5K message with fds (so data->blob points
to 5K of data, data->blob_size is 5K, and fd_list is non-null), but
the kernel is only accepting up to 4K with each sendmsg().
The first time we get into write_message_continue_writing(),
data->total_written will be 0. We will try to write the entire message,
plus the attached file descriptors; or if the stream doesn't support
fd-passing (not a socket), we need to fail with
"Tried sending a file descriptor on unsupported stream".
Because the kernel didn't accept the entire message, we come back in.
This time, we won't enter the Unix-specific block that involves sending
fds, because now data->total_written is 4K, and it would be wrong to try
to attach the same fds again. However, we also need to avoid failing
with "Tried sending a file descriptor on unsupported stream" in this
case. We just want to write out the data of the rest of the message,
starting from (blob + total_written) (in this exaple, the last 1K).
Resolves: https://gitlab.gnome.org/GNOME/glib/-/issues/2074
Signed-off-by: Simon McVittie <smcv@collabora.com>
This test ensures that g_socket_client_connect_to_host_async() fails if
it is cancelled, but it's not cancelled until after 1 millisecond. Our
CI testers are hitting that race window, and Milan is able to reproduce
the crash locally as well. Switching it from 1ms to 0ms is enough for
Milan to avoid the crash, but not enough for our CI, so let's move the
cancellation to a GSocketClientEvent callback where the timing is
completely deterministic.
Hopefully fixes#2221
