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fuzz: Add an XDG desktop file fuzzer
To test the XDG parser used by the xdg-autostart-generator. Co-authored-by: Evgeny Vereshchagin <evvers@ya.ru>
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37
src/fuzz/fuzz-xdg-desktop.c
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37
src/fuzz/fuzz-xdg-desktop.c
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/* SPDX-License-Identifier: LGPL-2.1+ */
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#include "alloc-util.h"
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#include "fd-util.h"
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#include "fs-util.h"
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#include "rm-rf.h"
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#include "string-util.h"
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#include "strv.h"
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#include "tests.h"
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#include "tmpfile-util.h"
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#include "fuzz.h"
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#include "xdg-autostart-service.h"
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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_cleanup_(unlink_tempfilep) char name[] = "/tmp/fuzz-xdg-desktop.XXXXXX";
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_cleanup_close_ int fd = -1;
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_cleanup_(xdg_autostart_service_freep) XdgAutostartService *service = NULL;
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_cleanup_(rm_rf_physical_and_freep) char *tmpdir = NULL;
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/* We don't want to fill the logs with messages about parse errors.
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* Disable most logging if not running standalone */
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if (!getenv("SYSTEMD_LOG_LEVEL"))
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log_set_max_level(LOG_CRIT);
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assert_se(mkdtemp_malloc("/tmp/fuzz-xdg-desktop-XXXXXX", &tmpdir) >= 0);
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fd = mkostemp_safe(name);
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assert_se(fd >= 0);
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assert_se(write(fd, data, size) == (ssize_t) size);
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assert_se(service = xdg_autostart_service_parse_desktop(name));
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assert_se(service->name = strdup("fuzz-xdg-desktop.service"));
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if (service)
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(void) xdg_autostart_service_generate_unit(service, tmpdir);
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return 0;
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}
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@ -146,4 +146,10 @@ fuzzers += [
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[['src/fuzz/fuzz-time-util.c'],
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[libshared],
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[]],
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[['src/fuzz/fuzz-xdg-desktop.c',
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'src/xdg-autostart-generator/xdg-autostart-service.h',
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'src/xdg-autostart-generator/xdg-autostart-service.c'],
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[],
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[]],
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]
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10
test/fuzz/fuzz-xdg-desktop/full.desktop
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10
test/fuzz/fuzz-xdg-desktop/full.desktop
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[Desktop Entry]
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Type=Application
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Name=GNOME Settings Daemon's power plugin
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Exec=/usr/bin/sleep %i %f "%F" "--test" ";\\\\!?"
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OnlyShowIn=GNOME;
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NoDisplay=true
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X-GNOME-Autostart-Phase=Initialization
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X-GNOME-Autostart-Notify=true
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X-GNOME-AutoRestart=true
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X-GNOME-HiddenUnderSystemd=true
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[Desktop Entry]
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Type=Application
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Name=GNOME Settings Daemon's power plugin
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Exec=/usr/libexec/gsd-power
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OnlyShowIn=GNOME;
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NoDisplay=true
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X-GNOME-Autostart-Phase=Initialization
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X-GNOME-Autostart-Notify=true
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X-GNOME-AutoRestart=true
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X-GNOME-HiddenUnderSystemd=true
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12
test/fuzz/fuzz-xdg-desktop/valid.desktop
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12
test/fuzz/fuzz-xdg-desktop/valid.desktop
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Desktop Entry
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Name=
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Exec=
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TryExec=
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Type=
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OnlyShowIn=
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NotShowIn=
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Hidden=
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AutostartCondition=
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X-KDE-autostart-condition=
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X-GNOME-Autostart-Phase=
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X-GNOME-HiddenUnderSystemd=
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