1 files changed, 39 insertions, 0 deletions

diff --git a/win32/mingw.c b/win32/mingw.c
index c420992d5..8d1da5199 100644
--- a/win32/mingw.c
+++ b/win32/mingw.c
@@ -1289,3 +1289,42 @@ ULONGLONG CompatGetTickCount64(void)
         return GetTickCount64();
 }
 #endif
+
+#if ENABLE_FEATURE_INSTALLER
+/*
+ * Enumerate the names of all hard links to a file.  The first call
+ * provides the file name as the first argument; subsequent calls must
+ * set the first argument to NULL.  Returns 0 on error or when there are
+ * no more links.
+ */
+int enumerate_links(const char *file, char *name)
+{
+        static HANDLE h = INVALID_HANDLE_VALUE;
+        char aname[PATH_MAX];
+        wchar_t wname[PATH_MAX];
+        DWORD length = PATH_MAX;
+        DECLARE_PROC_ADDR(HANDLE, FindFirstFileNameW, LPCWSTR, DWORD, LPDWORD,
+                                                PWSTR);
+        DECLARE_PROC_ADDR(BOOL, FindNextFileNameW, HANDLE, LPDWORD, PWSTR);
+
+        if (!INIT_PROC_ADDR(kernel32.dll, FindFirstFileNameW) ||
+                        !INIT_PROC_ADDR(kernel32.dll, FindNextFileNameW))
+                return 0;
+
+        if (file != NULL) {
+                wchar_t wfile[PATH_MAX];
+                MultiByteToWideChar(CP_ACP, 0, file, -1, wfile, PATH_MAX);
+                h = FindFirstFileNameW(wfile, 0, &length, wname);
+                if (h == INVALID_HANDLE_VALUE)
+                        return 0;
+        }
+        else if (!FindNextFileNameW(h, &length, wname)) {
+                FindClose(h);
+                h = INVALID_HANDLE_VALUE;
+                return 0;
+        }
+        WideCharToMultiByte(CP_ACP, 0, wname, -1, aname, PATH_MAX, NULL, NULL);
+        realpath(aname, name);
+        return 1;
+}
+#endif