mirror of
https://github.com/morgan9e/systemd
synced 2026-04-15 17:06:39 +09:00
4820c9d417
Make sure we don't log anything when running in "fuzzing" mode. Also, when at it, unify the setup logic into a helper, pretty similar to the test_setup_logging() one. Addresses: - https://github.com/systemd/systemd/pull/29558#pullrequestreview-1676060607 - https://github.com/systemd/systemd/pull/29558#discussion_r1358940663
116 lines
4.0 KiB
C
116 lines
4.0 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include "alloc-util.h"
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#include "env-util.h"
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#include "fd-util.h"
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#include "fuzz.h"
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#include "json.h"
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#include "memstream-util.h"
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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_cleanup_(memstream_done) MemStream m = {};
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_cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
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_cleanup_fclose_ FILE *f = NULL;
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FILE *g = NULL;
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int r;
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fuzz_setup_logging();
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f = data_to_file(data, size);
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assert_se(f);
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r = json_parse_file(f, NULL, 0, &v, NULL, NULL);
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if (r < 0) {
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log_debug_errno(r, "failed to parse input: %m");
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return 0;
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}
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if (getenv_bool("SYSTEMD_FUZZ_OUTPUT") <= 0)
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assert_se(g = memstream_init(&m));
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json_variant_dump(v, 0, g ?: stdout, NULL);
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json_variant_dump(v, JSON_FORMAT_PRETTY|JSON_FORMAT_COLOR|JSON_FORMAT_SOURCE, g ?: stdout, NULL);
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bool sorted = json_variant_is_sorted(v);
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log_debug("json_variant_is_sorted: %s", yes_no(sorted));
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r = json_variant_sort(&v);
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log_debug_errno(r, "json_variant_sort: %d/%m", r);
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sorted = json_variant_is_sorted(v);
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log_debug("json_variant_is_sorted: %s", yes_no(sorted));
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assert_se(r < 0 || sorted);
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bool normalized = json_variant_is_normalized(v);
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log_debug("json_variant_is_normalized: %s", yes_no(normalized));
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r = json_variant_normalize(&v);
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log_debug_errno(r, "json_variant_normalize: %d/%m", r);
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normalized = json_variant_is_normalized(v);
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log_debug("json_variant_is_normalized: %s", yes_no(normalized));
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assert_se(r < 0 || normalized);
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double real = json_variant_real(v);
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log_debug("json_variant_real: %lf", real);
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bool negative = json_variant_is_negative(v);
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log_debug("json_variant_is_negative: %s", yes_no(negative));
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bool blank = json_variant_is_blank_object(v);
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log_debug("json_variant_is_blank_object: %s", yes_no(blank));
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blank = json_variant_is_blank_array(v);
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log_debug("json_variant_is_blank_array: %s", yes_no(blank));
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size_t elements = json_variant_elements(v);
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log_debug("json_variant_elements: %zu", elements);
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for (size_t i = 0; i <= elements + 2; i++)
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(void) json_variant_by_index(v, i);
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assert_se(json_variant_equal(v, v));
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assert_se(!json_variant_equal(v, NULL));
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assert_se(!json_variant_equal(NULL, v));
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bool sensitive = json_variant_is_sensitive(v);
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log_debug("json_variant_is_sensitive: %s", yes_no(sensitive));
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json_variant_sensitive(v);
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sensitive = json_variant_is_sensitive(v);
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log_debug("json_variant_is_sensitive: %s", yes_no(sensitive));
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const char *source;
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unsigned line, column;
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assert_se(json_variant_get_source(v, &source, &line, &column) == 0);
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log_debug("json_variant_get_source: %s:%u:%u", source ?: "-", line, column);
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r = json_variant_set_field_string(&v, "a", "string-a");
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log_debug_errno(r, "json_set_field_string: %d/%m", r);
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r = json_variant_set_field_integer(&v, "b", -12345);
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log_debug_errno(r, "json_set_field_integer: %d/%m", r);
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r = json_variant_set_field_unsigned(&v, "c", 12345);
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log_debug_errno(r, "json_set_field_unsigned: %d/%m", r);
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r = json_variant_set_field_boolean(&v, "d", false);
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log_debug_errno(r, "json_set_field_boolean: %d/%m", r);
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r = json_variant_set_field_strv(&v, "e", STRV_MAKE("e-1", "e-2", "e-3"));
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log_debug_errno(r, "json_set_field_strv: %d/%m", r);
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r = json_variant_filter(&v, STRV_MAKE("a", "b", "c", "d", "e"));
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log_debug_errno(r, "json_variant_filter: %d/%m", r);
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/* I assume we can merge v with itself… */
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r = json_variant_merge_object(&v, v);
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log_debug_errno(r, "json_variant_merge: %d/%m", r);
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r = json_variant_append_array(&v, v);
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log_debug_errno(r, "json_variant_append_array: %d/%m", r);
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return 0;
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}
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