pledge (historical revision 36445) - The CHICKEN Scheme wiki

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pledge

This extension provides bindings to OpenBSD's pledge(2) system call.

The source for this egg is available here.

A single procedure is provided, which has the same interface as the system call.

(import (pledge))
(pledge "rpath")

[procedure] (pledge promises #!optional execpromises) => fixnum

Restricts the current process to the capabilities specified by promises, which should be a string.

On success, 0 is returned. On error, -1 is returned and errno should be consulted.

Refer to pledge(2) for more information.