---
title: illegalSeek
framework: system
role: symbol
role_heading: Type Property
path: system/errno/illegalseek
---

# illegalSeek

Illegal seek.

## Declaration

```swift
static var illegalSeek: Errno { get }
```

## Mentioned in

Adopting Swift Error Constants

## Discussion

Discussion An lseek(2) function was issued on a socket, pipe or FIFO. The corresponding C error is ESPIPE.

## See Also

### Pipe Errors

- [brokenPipe](system/errno/brokenpipe.md)