OpenBSD::Unveil(3p)

Usage

  use OpenBSD::Unveil;
  my $file = "/usr/share/dict/words";
  unveil( $file, "r" ) || die "Unable to unveil: $!";
  unveil() || die "Unable to lock unveil: $!";
  open my $fh, '<', $file or die "Unable to open $file: $!";
  print grep { /unveil/i } readline($fh);
  close $fh;

Overview

This module provides a perl interface to OpenBSD's unveil(2) syscall(2).

Export

Exports "unveil" by default.

Functions

unveil

Perl interface to unveil(2).

        unveil($path, $permissions)
        unveil() # to lock

Takes a string $path and a string of $permissions. Calling with no arguments disables future calls to "unveil". Returns true on success, returns false and sets $! on failure. Throws an exception on incorrect number of parameters.

License and copyright

Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

Releases

16 releases since OpenBSD 6.6; the text changed 10 times.