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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
commitb750101eb236130cf056c675997decbac904cc49 (patch)
treea5df1a06754bdd014cb975c051c83b01c9a97532 /src/fuzz/fuzz.h
parentInitial commit. (diff)
downloadsystemd-b750101eb236130cf056c675997decbac904cc49.tar.xz
systemd-b750101eb236130cf056c675997decbac904cc49.zip
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--src/fuzz/fuzz.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/src/fuzz/fuzz.h b/src/fuzz/fuzz.h
new file mode 100644
index 0000000..77e0ad9
--- /dev/null
+++ b/src/fuzz/fuzz.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "env-util.h"
+#include "fileio.h"
+
+/* The entry point into the fuzzer */
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
+
+static inline FILE* data_to_file(const uint8_t *data, size_t size) {
+ if (size == 0)
+ return fopen("/dev/null", "re");
+ else
+ return fmemopen_unlocked((char*) data, size, "r");
+}
+
+/* Check if we are within the specified size range.
+ * The upper limit is ignored if FUZZ_USE_SIZE_LIMIT is unset.
+ */
+static inline bool outside_size_range(size_t size, size_t lower, size_t upper) {
+ if (size < lower)
+ return true;
+ if (size > upper)
+ return FUZZ_USE_SIZE_LIMIT;
+ return false;
+}
+
+/* Force value to not be optimized away. */
+#define DO_NOT_OPTIMIZE(value) ({ asm volatile("" : : "g"(value) : "memory"); })