launcher: path transform language

tst/launcher-tests/echo.c

@@ -0,0 +1,35 @@
+/*
+ * Compile:
+ *     - cl -I"%ProgramFiles(x86)%\WinFsp\inc" "%ProgramFiles(x86)%\WinFsp\lib\winfsp-x64.lib" echo.c
+ *
+ * Register:
+ *     - echo.reg (fix Executable path first)
+ *
+ * Run:
+ *     - launchctl-x64 start echo 1 \foo\bar\baz
+ *
+ * Expect:
+ *     - "\foo\bar\baz" "bar:baz" "DOMAIN\\USERNAME"
+ */
+
+#include <winfsp/winfsp.h>
+
+int wmain(int argc, wchar_t *argv[])
+{
+    WCHAR buf[512], *bufp;
+    int len;
+
+    bufp = buf;
+    for (int i = 0; argc > i; i++)
+    {
+        len = lstrlenW(argv[i]);
+        memcpy(bufp, argv[i], len * sizeof(WCHAR));
+        bufp += len;
+        *bufp++ = '\n';
+    }
+    *bufp = '\0';
+
+    FspServiceLog(EVENTLOG_INFORMATION_TYPE, L"%s", buf);
+
+    return 0;
+}