This fixes a stack overflow reported by a user who had both the
definition of text/javascript from shared-mime-info 2.3 and the
definition of text/javascript from shared-mime-info 2.4 installed at the
same time. In 2.3, text/javascript is a subtype of
application/ecmascript, but in 2.4 application/ecmascript is a subtype
of text/javascript. Having both at the same time resulted in circular
inheritance.
The new logic keeps a list of all parents that have already been
checked, which is more comprehensive than the old workaround that was
implemented in commit 38869ece2 ("xdgmime: Prevent infinite loops from
badly-formed MIME registrations").
https://bugs.archlinux.org/task/80279
Depending on the operating system, /bin/sh might either be bash (for
example on Fedora or Arch) or dash (for example on Debian or Ubuntu)
or some other POSIX shell.
When bash is asked to run a simple command with no shell keywords or
metacharacters, like this one, it replaces itself with the program
via execve(), but dash does not have that optimization and treats it
like any other program invocation in a larger script: it will fork,
exec the program in the child, and wait for the child in the parent.
This seems like it conflicts with sleep_and_kill() assuming that it can
use the subprocess's process ID as the sleep(1) process ID. Specifically,
if it sends SIGKILL, it will go to the sh(1) process and not the sleep(1)
child, which could result in the sh(1) process being terminated and
its sleep(1) child being leaked.
To get the bash-like behaviour portably, explicitly use the exec builtin
to instruct the shell to replace itself with sleep(1), so that the
process ID previously used for the shell becomes the process ID of the
sleep process.
This appears to resolve an intermittent hang and test timeout on Debian
machines (especially slower ones), although I'm not 100% clear on the
mechanics of how it happens.
Resolves: https://gitlab.gnome.org/GNOME/glib/-/issues/3157
Signed-off-by: Simon McVittie <smcv@collabora.com>
The PTRACE_O_EXITKILL symbol in sys/ptrace.h is an enum member, not
a macro. The #ifdef check added to the GSubprocess test-case in
272ec5dbca8ec957ced2cdca45bde69f47fb4df9 will not detect it.
Use cc.has_header_symbol() to properly detect it. According to the
documentation: "Symbols here include function, variable, #define,
type definition, etc.".
Fixes: 272ec5dbca8ec957ced2cdca45bde69f47fb4df9
Closes: https://gitlab.gnome.org/GNOME/glib/-/issues/3156
Commit f6c40b1d fixed libelf detection on FreeBSD (where the library has
no pkg-config file and needs to be found via `find_library()`), but
broke `-Dlibelf=disabled` on Linux, as `get_option('libelf')` was no
longer checked.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #3120
It’s not actually needed on any platform, and causes compilation
problems on platforms where it’s not available.
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Fixes: #3111
When setting the file time using utimensat, don't ignore
microseconds for access/modify times. By doing that, they're preserved
when using g_file_info_set_modification_date_time and then setting the file's
attributes from it.
Fixes#3116
Make sure to fail consistently in case people created a GPropertyAction
with g_object_new() without passing a property name.
Bindings that construct objects with g_object_new() have no idea if a
property is mandatory.
See: #3130
This avoids a critical warning from trying to disconnect a signal
handler from a `NULL` object if `paction->object` is `NULL` for whatever
reason (see: the following commit).
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #3130
I had thought that because `g_source_destroy()` was called for the two
sources (cancel and timeout) in the `GTask` finalize function for a
threaded resolver operation, that it would be fine to use a plain
pointer in the source callbacks to point to the `GTask`.
That turns out to not be true: because the source callbacks are executed
in the GLib worker thread, and the `GTask` can be finalized in another
thread, it’s possible for a source callback (e.g. `cancelled_cb()`) to
be scheduled in the worker thread, then for the `GTask` to be finalized,
and then the source callback to continue execution and find itself
doing a use-after-free.
Fix that by using a weak ref to the `GTask` in the source callbacks,
rather than a plain pointer.
Signed-off-by: Philip Withnall <philip@tecnocode.co.uk>
Fixes: #3105
The fields are fully validated in `validate_headers()` in
`gdbusmessage.c` now, so the connection code should be able to rely on
the required ones being non-`NULL`.
Signed-off-by: Philip Withnall <philip@tecnocode.co.uk>
Helps: #3061
`object_path` and `path` were doing exactly the same thing here.
This introduces no functional changes.
Signed-off-by: Philip Withnall <philip@tecnocode.co.uk>
We already validated that the required headers for each type of D-Bus
message were present. However, we didn’t validate that they contained a
variant of the right type. This could lead to functions like
`g_dbus_message_get_path()` returning `NULL` unexpectedly.
This failure could only be hit when using GDBus in peer-to-peer mode, or
with a D-Bus server which didn’t validate the headers itself. The
reference D-Bus server does validate the headers, and doesn’t forward
invalid messages to clients.
Signed-off-by: Philip Withnall <philip@tecnocode.co.uk>
Fixes: #3061
Add test cases that result in lookup of the port via
getservbyname().
As the result depends on "/etc/services", it's not reliably the same on
every system. It requires a workaround.
Commit cf55c31170a5d79beb1119164c6f5ea3c4ea06a9 added a new test which
uses `ptrace()` to check some `GSubprocess` behaviour. FreeBSD uses
different symbol names for ptrace symbols, and we haven’t tested whether
the test works (and reproduces the failure) on FreeBSD, so skip the test
for now.
Signed-off-by: Philip Withnall <philip@tecnocode.co.uk>
The tooling won’t pick them up unless they’re directly above the gettext
calls.
Spotted by Piotr Drąg in
ec03755355 (note_1808152).
Signed-off-by: Philip Withnall <philip@tecnocode.co.uk>
The test case will fail with the
g_assert_false (g_subprocess_get_successful (proc));
assert failing. Without the fix, it'll hit sometimes, but rather
unreliably. When running `meson test --repeat 100`, it'll reproduce
anywhere between the first or much later, but mostly before the 20th
iteration on my system.
Helps: #3071
It's not safe to use setlocale() to mutate the locale in a threaded
program. Lots of other tests still do this, and I'm not putting in the
effort to fix them comprehensively in the absense of actual failures on
CI, but I figured it'd be good to fix the tests that I was touching.
This definitely does not do anything on Linux. I bet it's not needed on
other platforms, either. It's unsafe and may crash; there is no safe way
to mutate the environment in threaded programs.
This is a copy of the existing test_l10n, modified to use LC_TIME
instead of LC_MESSAGES. It's not safe as each call to g_setenv() or
setlocale() could cause the test to crash; there is no safe way to
change a threaded process's environment, and a threaded process's locale
can only be safely changed using uselocale(), not with setlocale().
The calls to g_setenv() are definitely not needed on Linux. I wonder
whether removing these will break the test on other platforms?
The calls to setlocale() should be replaced by a dance of
uselocale() -> duplocale() -> newlocale() -> uselocale() on Linux. But
this is not portable and this is a cross-platform test. We would have to
make the test platform-specific to do this. macOS and at least FreeBSD
provide these functions via xlocale.h, but this isn't portable.
It's supposed to be possible to translate settings values using LC_TIME
rather than LC_MESSAGES to determine which translation to use, but
Sebastian Keller noticed that it's not working properly. I've
implemented his proposed solution, which is to actually temporarily
change LC_MESSAGES to match LC_TIME for just as long as necessary to
force gettext to use the desired message catalog.
Fixes#2575
