---
title: vn_path_package_check
framework: Kernel
role: symbol
role_heading: Function
platforms: [macOS 10.6+]
path: kernel/1562172-vn_path_package_check
---

# vn_path_package_check

Figure out if a path corresponds to a macOS package.

## Declaration

```occ
int vn_path_package_check(vnode_t vp, char *path, int pathlen, int *component);
```

## Parameters

- `vp`: Unused.
- `path`: Path to check.
- `pathlen`: Size of path buffer.
- `component`: Set to index of start of last path component if the path is found to be a package. Set to -1 if the path is not a known package type.

## Return Value

Return Value 0 unless some parameter was invalid, in which case EINVAL is returned. Determine package-ness by checking what *component is set to.

## Discussion

Discussion Determines if the extension on a path is a known macOS extension type.