Module: Pledge

Defined in:
ext/pledge/pledge.c

Defined Under Namespace

Classes: Error, InvalidPromise, PermissionIncreaseAttempt

Instance Method Summary collapse

Instance Method Details

#pledge(*args) ⇒ Object 



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# File 'ext/pledge/pledge.c', line 9

static VALUE rb_pledge(int argc, VALUE* argv, VALUE pledge_class) {
  VALUE promises = Qnil;
  VALUE execpromises = Qnil;
  const char * prom = NULL;
  const char * execprom = NULL;

  rb_scan_args(argc, argv, "11", &promises, &execpromises);

  if (!NIL_P(promises)) {
    SafeStringValue(promises);
    promises = rb_str_dup(promises);

    /* required for ruby to work */
    rb_str_cat2(promises, " stdio");
    promises = rb_funcall(promises, rb_intern("strip"), 0);
    SafeStringValue(promises);
    prom = RSTRING_PTR(promises);
  }

  if (!NIL_P(execpromises)) {
    SafeStringValue(execpromises);
    execprom = RSTRING_PTR(execpromises);
  }

  if (pledge(prom, execprom) != 0) {
    switch(errno) {
    case EINVAL:
        rb_raise(ePledgeInvalidPromise, "invalid promise in promises string");
    case EPERM:
        rb_raise(ePledgePermissionIncreaseAttempt, "attempt to increase permissions");
    default:
        rb_raise(ePledgeError, "pledge error");
    }
  }

  return Qnil;
}