tests/kernel/t_writev.c

   1 /* $NetBSD$ */
   2
   3 /*-
   4  * Copyright (c) 2001, 2008 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __COPYRIGHT("@(#) Copyright (c) 2008\
  31  The NetBSD Foundation, inc. All rights reserved.");
  32 __RCSID("$NetBSD$");
  33
  34 #include <sys/uio.h>
  35 #include <sys/syslimits.h>
  36
  37 #include <errno.h>
  38 #include <stdio.h>
  39 #include <string.h>
  40 #include <unistd.h>
  41
  42 #include <atf-c.h>
  43
  44 ATF_TC(writev);
  45 ATF_TC_HEAD(writev, tc)
  46 {
  47         atf_tc_set_md_var(tc, "timeout", "10");
  48         atf_tc_set_md_var(tc, "descr",
  49             "Checks that file descriptor is properly FILE_UNUSE()d "
  50             "when iovcnt is greater than IOV_MAX");
  51 }
  52 ATF_TC_BODY(writev, tc)
  53 {
  54         ssize_t retval;
  55
  56         (void)printf("Calling writev(2, NULL, IOV_MAX + 1)...\n");
  57
  58         errno = 0;
  59         retval = writev(2, NULL, IOV_MAX + 1);
  60
  61         ATF_REQUIRE_EQ_MSG(retval, -1, "got: %d", retval);
  62         ATF_REQUIRE_EQ_MSG(errno, EINVAL, "got: %s", strerror(errno));
  63 }
  64
  65 ATF_TP_ADD_TCS(tp)
  66 {
  67         ATF_TP_ADD_TC(tp, writev);
  68
  69         return atf_no_error();
  70 }