1 files changed, 85 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/c_runtime/strncpy/test1/test1.cpp b/src/pal/tests/palsuite/c_runtime/strncpy/test1/test1.cpp
new file mode 100644
index 0000000000..62baf61ba2
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/strncpy/test1/test1.cpp
@@ -0,0 +1,85 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+/*============================================================================
+**
+** Source:  test1.c
+**
+** Purpose:
+** Test to see that you can copy a portion of a string into a new buffer.
+** Also check that the strncpy function doesn't overflow when it is used.
+** Finally check that if the number of characters given is greater than the 
+** amount to copy, that the destination buffer is padded with NULLs.
+**
+**
+**==========================================================================*/
+
+#include <palsuite.h>
+
+
+int __cdecl main(int argc, char *argv[])
+{
+    char dest[80];
+    char *result = "foobar";
+    char *str = "foobar\0baz";
+    char *ret;
+    int i;
+    
+    if (PAL_Initialize(argc, argv))
+    {
+        return FAIL;
+    }
+
+
+    for (i=0; i<80; i++)
+    {
+        dest[i] = 'x';
+    }
+
+    ret = strncpy(dest, str, 3);
+    if (ret != dest)
+    {
+        Fail("Expected strncpy to return %p, got %p!\n", dest, ret);        
+    }
+
+    if (strncmp(dest, result, 3) != 0)
+    {
+        Fail("Expected strncpy to give \"%s\", got \"%s\"!\n", result, dest);
+    }
+
+    if (dest[3] != 'x')
+    {
+        Fail("strncpy overflowed!\n");
+    }
+
+    ret = strncpy(dest, str, 40);
+    if (ret != dest)
+    {
+        Fail("Expected strncpy to return %p, got %p!\n", dest, ret);        
+    }
+
+    if (strcmp(dest, result) != 0)
+    {
+        Fail("Expected strncpy to give \"%s\", got \"%s\"!\n", result, dest);
+    }
+
+    for (i=strlen(str); i<40; i++)
+    {
+        if (dest[i] != 0)
+        {
+            Fail("strncpy failed to pad the destination with NULLs!\n");
+        }
+    }
+
+    if (dest[40] != 'x')
+    {
+        Fail("strncpy overflowed!\n");
+    }
+    
+
+
+    PAL_Terminate();
+
+    return PASS;
+}