From cb1ce9e1815a492de0f13c2b046b8472024b9f6d Mon Sep 17 00:00:00 2001
From: jvoisin
Date: Wed, 14 Jun 2023 14:59:11 +0200
Subject: Add tests for strncpy and handle overlapping buffers there

---
 tests/test_strncpy_overwrite_under.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 tests/test_strncpy_overwrite_under.c

(limited to 'tests/test_strncpy_overwrite_under.c')

diff --git a/tests/test_strncpy_overwrite_under.c b/tests/test_strncpy_overwrite_under.c
new file mode 100644
index 0000000..f554b28
--- /dev/null
+++ b/tests/test_strncpy_overwrite_under.c
@@ -0,0 +1,15 @@
+#include "common.h"
+
+#include <string.h>
+
+int main(int argc, char** argv) {
+  char buffer[9] = {'A', 'A', 'A', 'A', 'B', 'B', 'B', 'B', '\0'};
+  puts(buffer);
+
+  CHK_FAIL_START
+  strncpy(buffer-1, buffer, 5);
+  CHK_FAIL_END
+
+  puts(buffer);
+  return ret;
+}
-- 
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