From 3c55d2c9a122091db77b735120c3bf5aa29722ad Mon Sep 17 00:00:00 2001
From: Jakob Kaivo <jkk@ung.org>
Date: Tue, 30 Jun 2020 13:38:00 -0400
Subject: add tests for double free() and use after free()

---
 test/double-free.c    | 19 +++++++++++++++++++
 test/use-after-free.c | 18 ++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 test/double-free.c
 create mode 100644 test/use-after-free.c

(limited to 'test')

diff --git a/test/double-free.c b/test/double-free.c
new file mode 100644
index 0000000..73ceff5
--- /dev/null
+++ b/test/double-free.c
@@ -0,0 +1,19 @@
+#define _POSIX_C_SOURCE 200809L
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include "mapalloc.h"
+
+int main(void)
+{
+	const char buf[] = "THIS IS A CONSTANT STRING";
+
+	char *ptr = map_malloc(sizeof(buf));
+	memcpy(ptr, buf, sizeof(buf));
+	printf("%p: %s\n", ptr, ptr);
+
+	map_free(ptr);
+	printf("freed\n");
+	map_free(ptr);
+	printf("freed again\n");
+}
diff --git a/test/use-after-free.c b/test/use-after-free.c
new file mode 100644
index 0000000..4338ed5
--- /dev/null
+++ b/test/use-after-free.c
@@ -0,0 +1,18 @@
+#define _POSIX_C_SOURCE 200809L
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include "mapalloc.h"
+
+int main(void)
+{
+	const char buf[] = "THIS IS A CONSTANT STRING";
+
+	char *ptr = map_malloc(sizeof(buf));
+	memcpy(ptr, buf, sizeof(buf));
+	printf("%p: %s\n", ptr, ptr);
+
+	map_free(ptr);
+	printf("freed\n");
+	printf("%p: %s\n", ptr, ptr);
+}
-- 
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