lazybox: add 'symlink' helper

userspace/programs/lazybox/CMakeLists.txt

@@ -19,3 +19,4 @@ lazybox_program(true "Do nothing, successfully")
 lazybox_program(clear "Clear the terminal screen")
 lazybox_program(rm "Remove files or directories")
 lazybox_program(write "A simple text writer")
+lazybox_program(symlink "Create a symbolic link")

userspace/programs/lazybox/symlink.c

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <mos_stdio.h>
+#include <mosapi.h>
+
+int main(int argc, char *argv[])
+{
+    if (argc < 3)
+    {
+        puts("Usage: symlink <link> <target>");
+        return 1;
+    }
+
+    if (syscall_vfs_symlink(argv[1], argv[2]))
+    {
+        printf("Failed to create symlink %s -> %s\n", argv[1], argv[2]);
+        return 1;
+    }
+
+    printf("Created symlink %s -> %s\n", argv[1], argv[2]);
+    return 0;
+}