1 files changed, 81 insertions, 0 deletions
diff --git a/src/tests/fuzzing/fuzz_profile.c b/src/tests/fuzzing/fuzz_profile.c
new file mode 100644
index 0000000..95a5b48
--- /dev/null
+++ b/src/tests/fuzzing/fuzz_profile.c
@@ -0,0 +1,81 @@
+/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/* tests/fuzzing/fuzz_profile.c */
+/*
+ * Copyright (C) 2024 by Arjun. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in
+ *   the documentation and/or other materials provided with the
+ *   distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Fuzzing harness implementation for profile_parse_file.
+ */
+
+#include "autoconf.h"
+#include <prof_int.h>
+
+void dump_profile(struct profile_node *root, int level);
+
+#define kMinInputLength 2
+#define kMaxInputLength 1024
+
+extern int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
+
+int
+LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+    FILE *fp_w, *fp_r;
+    char file_name[256];
+    struct profile_node *root;
+
+    if (size < kMinInputLength || size > kMaxInputLength)
+        return 0;
+
+    snprintf(file_name, sizeof(file_name), "/tmp/libfuzzer.%d", getpid());
+
+    /* Write data into the file.*/
+    fp_w = fopen(file_name, "w");
+    if (!fp_w)
+        return 1;
+    fwrite(data, 1, size, fp_w);
+    fclose(fp_w);
+
+    /* Provide the file pointer to the parser. */
+    fp_r = fopen(file_name, "r");
+    if (!fp_r)
+        return 1;
+
+    initialize_prof_error_table();
+
+    if (profile_parse_file(fp_r, &root, NULL) == 0) {
+        profile_verify_node(root);
+        profile_free_node(root);
+    }
+
+    fclose(fp_r);
+    unlink(file_name);
+
+    return 0;
+}