Adding upstream version 1.21.3.upstream/1.21.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/fuzz/fuzzer.h b/fuzz/fuzzer.h
new file mode 100644
index 0000000..d64e89c
--- /dev/null
+++ b/fuzz/fuzzer.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2017-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Wget.
+ *
+ * GNU Wget is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GNU Wget is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Wget.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <stddef.h> // size_t
+#include <stdint.h> // uint8_t
+
+#if defined __clang__ || __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
+	#pragma GCC diagnostic ignored "-Wunused"
+	#pragma GCC diagnostic ignored "-Wunused-parameter"
+	#pragma GCC diagnostic ignored "-Wpedantic"
+#endif
+
+#define CLOSE_STDERR \
+	int bak = dup(STDERR_FILENO); \
+	int fd = open("/dev/null", O_WRONLY); \
+	dup2(fd, STDERR_FILENO); \
+	close(fd);
+
+#define RESTORE_STDERR \
+	dup2(bak, STDERR_FILENO); \
+	close(bak);
+
+#ifdef __cplusplus
+extern "C"
+#endif
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);