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.
