cffi-posix/cffi-pledge/cffi-pledge.lisp

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• Hash : 95762e0a
  Author : Thomas de Grivel
  Date : 2019-11-29T20:52:30
  

  Common Lisp wrapper for pledge syscall on OpenBSD

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• cffi-pledge.lisp

• ;;
  ;;  cffi-pledge  -  Common Lisp wrapper for pledge syscall on OpenBSD
  ;;
  ;;  Copyright 2019 Thomas de Grivel <thoxdg@gmail.com>
  ;;
  ;;  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.
  ;;
  
  (in-package :cffi-pledge)
  
  (defcfun ("pledge" c-pledge) :int
    (promises :string)
    (execpromises :string))
  
  (defun pledge (promises execpromises)
    (declare (type (or null string) promises execpromises))
    (let ((ret (c-pledge (or promises (null-pointer))
                         (or execpromises (null-pointer)))))
      (declare (type integer ret))
      (unless (zerop ret)
        (error-errno "pledge")))
    (values))
  

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