Add SPDX license (but not copyright) headers to all files which follow a
certain pattern in their existing non-machine-readable header comment.
This commit was entirely generated using the command:
```
git ls-files glib/tests/*.c | xargs perl -0777 -pi -e 's/\n \*\n \* This library is free software; you can redistribute it and\/or\n \* modify it under the terms of the GNU Lesser General Public/\n \*\n \* SPDX-License-Identifier: LGPL-2.1-or-later\n \*\n \* This library is free software; you can redistribute it and\/or\n \* modify it under the terms of the GNU Lesser General Public/igs'
```
Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Helps: #1415
On Windows, everything is assumed as UTF-8 in g_get_filename_charsets(),
so setting G_FILENAME_ENCODING envvar has no effect, so we can just skip
the test on g_get_filename_charsets() where we try to influence it by
setting the G_FILENAME_ENCODING envvar.
Spotted when temporarily compiling with -Wwrite-strings. This only goes
a small way towards making the code base -Wwrite-strings–clean. It
introduces no functional changes, and fixes no bugs.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Reviewed-by: nobody
String inputs to convenience conversion functions g_locale_from_utf8(),
g_filename_from_utf8(), and g_filename_to_utf8(), are annotated for the
bindings as NUL-terminated strings of (type utf8) or (type filename).
There is also a len parameter that allows converting part of the string,
but it is exposed to the bindings as a value independent from the string
buffer. Absent any more sophisticated ways to annotate, the way to
provide a safeguard against len argument values longer than the
string length is to check that no nul is encountered within the first
len bytes of the string. strdup_len() includes this check as part of
UTF-8 validation, but g_convert() permits embedded nuls.
For g_filename_from_utf8(), also check the output to prevent embedded NUL
bytes. It's not safe to allow embedded NULs in a string that is going
to be used as (type filename), and no known bytestring encoding for
file names allows them.
https://bugzilla.gnome.org/show_bug.cgi?id=792516
Add a test that excercises the 'no conversion' code path.
This uncovered that we don't treat errno properly in this path,
and as a consequence, the returned error code is unreliable.
