1 files changed, 116 insertions, 0 deletions
diff --git a/src/pal/src/safecrt/tmakepath_s.inl b/src/pal/src/safecrt/tmakepath_s.inl
new file mode 100644
index 0000000000..34c4842c61
--- /dev/null
+++ b/src/pal/src/safecrt/tmakepath_s.inl
@@ -0,0 +1,116 @@
+// 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.
+
+/***
+*tmakepath_s.inl - general implementation of _tmakepath_s
+*
+
+*
+*Purpose:
+*       This file contains the general algorithm for _makepath_s and its variants.
+*
+*******************************************************************************/
+
+_FUNC_PROLOGUE
+errno_t __cdecl _FUNC_NAME(__out_ecount_z(_SIZE) _CHAR *_DEST, __in_opt size_t _SIZE, __in_z_opt const _CHAR *_Drive, __in_z_opt const _CHAR *_Dir, __in_z_opt const _CHAR *_Filename, __in_z_opt const _CHAR *_Ext)
+{
+    size_t written;
+    const _CHAR *p;
+    _CHAR *d;
+
+    /* validation section */
+    _VALIDATE_STRING(_DEST, _SIZE);
+
+    /* copy drive */
+    written = 0;
+    d = _DEST;
+    if (_Drive != NULL && *_Drive != 0)
+    {
+        written += 2;
+        if(written >= _SIZE)
+        {
+            goto error_return;
+        }
+        *d++ = *_Drive;
+        *d++ = _T(':');
+    }
+
+    /* copy dir */
+    p = _Dir;
+    if (p != NULL && *p != 0)
+    {
+        do {
+            if(++written >= _SIZE)
+            {
+                goto error_return;
+            }
+            *d++ = *p++;
+        } while (*p != 0);
+
+#if _MBS_SUPPORT
+        p = _MBSDEC(_Dir, p);
+#else  /* _MBS_SUPPORT */
+        p = p - 1;
+#endif  /* _MBS_SUPPORT */
+        if (*p != _T('/') && *p != _T('\\'))
+        {
+            if(++written >= _SIZE)
+            {
+                goto error_return;
+            }
+            *d++ = _T('\\');
+        }
+    }
+
+    /* copy fname */
+    p = _Filename;
+    if (p != NULL)
+    {
+        while (*p != 0)
+        {
+            if(++written >= _SIZE)
+            {
+                goto error_return;
+            }
+            *d++ = *p++;
+        }
+    }
+
+    /* copy extension; check to see if a '.' needs to be inserted */
+    p = _Ext;
+    if (p != NULL)
+    {
+        if (*p != 0 && *p != _T('.'))
+        {
+            if(++written >= _SIZE)
+            {
+                goto error_return;
+            }
+            *d++ = _T('.');
+        }
+        while (*p != 0)
+        {
+            if(++written >= _SIZE)
+            {
+                goto error_return;
+            }
+            *d++ = *p++;
+        }
+    }
+
+    if(++written > _SIZE)
+    {
+        goto error_return;
+    }
+    *d = 0;
+    _FILL_STRING(_DEST, _SIZE, written);
+    _RETURN_NO_ERROR;
+
+error_return:
+    _RESET_STRING(_DEST, _SIZE);
+    _RETURN_BUFFER_TOO_SMALL(_DEST, _SIZE);
+
+    /* should never happen, but compiler can't tell */
+    return EINVAL;
+}