28 Commits

Author SHA1 Message Date
Peter Wu
a51ab0a5ab genviron: make g_environ_* case-insensitive on Windows
g_environ_getenv(env, "PATH") and g_environ_setenv(env, "PATH", newpath)
did not have the intended effect on Windows due to the environment block
containing "Path=". Make these functions case-insensitive for Windows.
2018-11-28 11:04:48 +01:00
Tim-Philipp Müller
59c5b939e2 glib: fix compiler warning for g_unsetenv_utf8() on windows
"warning: 'void' function returning a value". Neither
g_unsetenv_utf8() nor g_unsetenv() return anything.
2018-01-10 17:24:36 +00:00
Christoph Reiter
fed574a0c8 introspection: Add more filename type annotations for strings which can contain filenames
This continues the changes done in https://bugzilla.gnome.org/show_bug.cgi?id=767245

This makes it possible to pass Python path types as process arguments and env vars
in PyGObject and and makes it clear that the values are not strictly utf-8 and need
to be validated/converted first.

https://bugzilla.gnome.org/show_bug.cgi?id=788863
2017-10-26 18:51:51 +02:00
Sébastien Wilmet
f9faac7661 glib/: LGPLv2+ -> LGPLv2.1+
All glib/*.{c,h} files have been processed, as well as gtester-report.

12 of those files are not licensed under LGPL:

	gbsearcharray.h
	gconstructor.h
	glibintl.h
	gmirroringtable.h
	gscripttable.h
	gtranslit-data.h
	gunibreak.h
	gunichartables.h
	gunicomp.h
	gunidecomp.h
	valgrind.h
	win_iconv.c

Some of them are generated files, some are licensed under a BSD-style
license and win_iconv.c is in the public domain.

Sub-directories inside glib/:

	deprecated/: processed in a previous commit
	glib-mirroring-tab/: already LGPLv2.1+
	gnulib/: not modified, the code is copied from gnulib
	libcharset/: a copy
	pcre/: a copy
	tests/: processed in a previous commit

https://bugzilla.gnome.org/show_bug.cgi?id=776504
2017-05-24 11:58:19 +02:00
Christoph Reiter
b67d071321 genviron: Remove old win32 codepage ABI compat code
Makes new code link against the normal symbol names again.
Variants with utf8 suffix are there for existing binaries/ABI compat.

https://bugzilla.gnome.org/show_bug.cgi?id=780634
2017-04-06 19:19:20 +02:00
Christian Hergert
18a33f72db introspection: use (nullable) or (optional) instead of (allow-none)
If we have an input parameter (or return value) we need to use (nullable).
However, if it is an (inout) or (out) parameter, (optional) is sufficient.

It looks like (nullable) could be used for everything according to the
Annotation documentation, but (optional) is more specific.
2016-11-22 14:14:37 -08:00
Christoph Reiter
c9dd204909 Partly revert "glib: Add filename type annotations"
Revert all annotation changes for environment variables and command line
arguments.

See commit 41013a01f44e9fc15ffef55eae78af2425bbd5a3.
2016-06-07 19:48:11 +02:00
Christoph Reiter
41013a01f4 glib: Add filename type annotations
Adds the filename annotation for all file names
and things which can contain file names like
environment variables, argv-

On Unix they can contain anything while on Windows
they are always utf-8.

https://bugzilla.gnome.org/show_bug.cgi?id=767245
2016-06-04 20:38:33 +02:00
Mikhail Zabaluev
16190d2dcd glib/genviron.c, GSubprocessLauncher: ain't no "filename encoding"
Removed all mentions of GLib file name encoding referring to
the environment strings. The env var content has no defined relation
to GLib's notion of filename encoding, or any encoding whatsoever.
It would be wrong to pass all UTF-8 strings through
g_filename_from_utf8() in order to put them into the environment,
for one thing.

https://bugzilla.gnome.org/show_bug.cgi?id=738185
2015-06-05 14:53:34 -04:00
Mathieu Bridon
24fdee7a78 Fix some typos in documentation 2014-05-05 18:30:56 +08:00
William Jon McCann
20f4d1820b docs: use "Returns:" consistently
Instead of "Return value:".
2014-02-19 19:41:52 -05:00
Matthias Clasen
64eface479 Docs: don't use the warning tag
More markup removal
2014-01-31 18:20:06 -05:00
Daniel Mustieles
078dbda148 Updated FSF's address 2014-01-31 14:31:55 +01:00
Dan Winship
158dde0507 Replace #ifdef HAVE_UNISTD_H checks with #ifdef G_OS_UNIX
In Windows development environments that have it, <unistd.h> is mostly
just a wrapper around several other native headers (in particular,
<io.h>, which contains read(), close(), etc, and <process.h>, which
contains getpid()). But given that some Windows dev environments don't
have <unistd.h>, everything that uses those functions on Windows
already needed to include the correct Windows header as well, and so
there is never any point to including <unistd.h> on Windows.

Also, remove some <unistd.h> includes (and a few others) that were
unnecessary even on unix.

https://bugzilla.gnome.org/show_bug.cgi?id=710519
2013-11-20 09:25:39 -05:00
Dan Winship
d94d6ecd3f genviron: fix g_setenv(var, NULL) and some other stuff
Passing a NULL value to g_setenv() was never documented as working,
and in fact it worked on some platforms and crashed on others. Make it
g_return_if_fail() everywhere insted.

Also, remove some incorrect docs in g_environ_getenv() and
g_environ_setenv() that shouldn't have been copied from g_getenv() and
g_setenv(). And belatedly simplify the checks in g_unsetenv().

https://bugzilla.gnome.org/show_bug.cgi?id=704593
2013-10-19 11:33:25 -04:00
Colin Walters
d6cbb29f59 CVE-2012-3524: Hardening for being run in a setuid environment
Some programs attempt to use libglib (or even libgio) when setuid.
For a long time, GTK+ simply aborted if launched in this
configuration, but we never had a real policy for GLib.

I'm not sure whether we should advertise such support.  However, given
that there are real-world programs that do this currently, we can make
them safer with not too much effort.

Better to fix a problem caused by an interaction between two
components in *both* places if possible.

This patch adds a private function g_check_setuid() which is used to
first ensure we don't run an external dbus-launch binary if
DBUS_SESSION_BUS_ADDRESS isn't set.

Second, we also ensure the local VFS is used in this case.  The
gdaemonvfs extension point will end up talking to the session bus
which is typically undesirable in a setuid context.

Implementing g_check_setuid() is interesting - whether or not we're
running in a privilege-escalated path is operating system specific.
Note that GTK+'s code to check euid versus uid worked historically on
Unix, more modern systems have filesystem capabilities and SELinux
domain transitions, neither of which are captured by the uid
comparison.

On Linux/glibc, the way this works is that the kernel sets an
AT_SECURE flag in the ELF auxiliary vector, and glibc looks for it on
startup.  If found, then glibc sets a public-but-undocumented
__libc_enable_secure variable which we can use.  Unfortunately, while
it *previously* worked to check this variable, a combination of newer
binutils and RPM break it:
http://www.openwall.com/lists/owl-dev/2012/08/14/1

So for now on Linux/glibc, we fall back to the historical Unix version
until we get glibc fixed.

On some BSD variants, there is a issetugid() function.  On other Unix
variants, we fall back to what GTK+ has been doing.

Reported-By: Sebastian Krahmer <krahmer@suse.de>
Signed-off-by: Colin Walters <walters@verbum.org>
2012-09-13 18:34:29 -04:00
Marc-André Lureau
bfbfbec91e win32: g_getenv() should return "" if variable exists and empty
On Windows, GetEnvironmentVariable() returns 0 for empty variables.
Checking GetLastError() == ERROR_ENVVAR_NOT_FOUND helps make a
difference between a variable that does not exist or an empty one
which should return "".

https://bugzilla.gnome.org/show_bug.cgi?id=679617
2012-07-16 12:49:25 +02:00
Marc-André Lureau
6007a4b0b1 win32: fix g_get_environ()
The current code create the strv array incorrectly, it is too big and
leaves invalid holes. This may result in crashes when freeing the
returned value.

https://bugzilla.gnome.org/show_bug.cgi?id=679617
2012-07-16 12:49:24 +02:00
Marc-Antoine Perennou
9217309a5c glib: fix build
Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
2012-05-22 20:38:52 +02:00
Christian Persch
6969b63827 environ: Allow NULL envp
https://bugzilla.gnome.org/show_bug.cgi?id=676397
2012-05-22 19:47:22 +02:00
Christian Persch
26f238e85d Plug a mem leak in g_environ_unsetenv
And clarify the memory allocation requirement of the string arrays passed to
g_environ_{,un}setenv().

==9458== 10 bytes in 1 blocks are definitely lost in loss record 16 of 39
==9458==    at 0x402AD89: malloc (vg_replace_malloc.c:236)
==9458==    by 0x4221A1F: vasprintf (vasprintf.c:78)
==9458==    by 0x40C6065: g_vasprintf (gprintf.c:314)
==9458==    by 0x409D894: g_strdup_vprintf (gstrfuncs.c:509)
==9458==    by 0x409D8C9: g_strdup_printf (gstrfuncs.c:535)
==9458==    by 0x40672E9: g_environ_setenv (genviron.c:156)
==9458==    by 0x80490E7: test_environ_array (environment.c:78)
==9458==    by 0x40A3DB5: test_case_run (gtestutils.c:1662)
==9458==    by 0x40A40B2: g_test_run_suite_internal (gtestutils.c:1715)
==9458==    by 0x40A417C: g_test_run_suite_internal (gtestutils.c:1726)
==9458==    by 0x40A42F9: g_test_run_suite (gtestutils.c:1771)
==9458==    by 0x40A3441: g_test_run (gtestutils.c:1319)
==9458==    by 0x80493F1: main (environment.c:108)

Bug #669412.
2012-02-15 17:45:44 +01:00
Christian Persch
7e9aed94de Revert "Plug a mem leak in g_environ_unsetenv"
This reverts commit 2f4b46e3783b04cddcb2622a57b2a8e692cff68a, which was
pushed accidentally.
2012-02-05 20:00:16 +01:00
Christian Persch
2f4b46e378 Plug a mem leak in g_environ_unsetenv
==9458== 10 bytes in 1 blocks are definitely lost in loss record 16 of 39
==9458==    at 0x402AD89: malloc (vg_replace_malloc.c:236)
==9458==    by 0x4221A1F: vasprintf (vasprintf.c:78)
==9458==    by 0x40C6065: g_vasprintf (gprintf.c:314)
==9458==    by 0x409D894: g_strdup_vprintf (gstrfuncs.c:509)
==9458==    by 0x409D8C9: g_strdup_printf (gstrfuncs.c:535)
==9458==    by 0x40672E9: g_environ_setenv (genviron.c:156)
==9458==    by 0x80490E7: test_environ_array (environment.c:78)
==9458==    by 0x40A3DB5: test_case_run (gtestutils.c:1662)
==9458==    by 0x40A40B2: g_test_run_suite_internal (gtestutils.c:1715)
==9458==    by 0x40A417C: g_test_run_suite_internal (gtestutils.c:1726)
==9458==    by 0x40A42F9: g_test_run_suite (gtestutils.c:1771)
==9458==    by 0x40A3441: g_test_run (gtestutils.c:1319)
==9458==    by 0x80493F1: main (environment.c:108)

Bug #669412.
2012-02-05 19:57:09 +01:00
Chun-wei Fan
b25177fc4f GLib: Add forgotten includes and build fixes
-gcharset.c, genviron.c, gunicollate.c: Some headers were missed in those
 files that triggered C4013 warnings/errors (aka. implicit declaration
 of ... in GCC).  Make up for them here.
-gwin32.h: Only define g_win32_get_package_installation_directory/
 g_win32_get_package_installation_subdirectory as macros
 (alias of g_win32_get_package_installation_directory_utf8/
 g_win32_get_package_installation_subdirectory_utf8) on Win64 (x64) as
 g_win32_get_package_installation_directory/
 g_win32_get_package_installation_subdirectory have seperate existing
 implmentations for Win32-this is a long-standing problem but was covered-
 up by G_DISABLE_DEPRECATED, which we are stopping to use as of 2.31.0.
2011-10-17 23:54:05 +08:00
Matthias Clasen
f8a7471308 Trivial 2011-10-17 01:11:56 -04:00
Matthias Clasen
fbe24cab21 Reshuffle genviron.c
Split win32 functions off into their own section, instead
of having large and unwieldy ifdef sections inside each function.

Also move the compat versions of env functions over from gutils.c
2011-10-17 00:39:43 -04:00
Ryan Lortie
1b018a8bb2 genviron: #include fixups 2011-10-16 21:41:15 -04:00
Matthias Clasen
d4dfca21bb Drop unused copy of _g_getenv_nomalloc 2011-10-15 18:23:07 -04:00