---
title: doubleagent_allocate_xattr
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 15.0+]
path: kernel/4359982-doubleagent_allocate_xattr
---

# doubleagent_allocate_xattr

## Declaration

```occ
kern_return_t doubleagent_allocate_xattr(mach_port_t server, mach_port_t file_port, int64_t file_size, xattrname name, uint64_t size, uint32_t options, int *err, uint64_t *value_offset);
```