/*      $NetBSD: t_full.c,v 1.11 2019/07/16 17:29:17 martin Exp $       */

/*-
* Copyright (c) 2010 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/stat.h>
#include <sys/statvfs.h>

#include <atf-c.h>
#include <fcntl.h>
#include <libgen.h>
#include <stdlib.h>
#include <unistd.h>

#include <rump/rump_syscalls.h>
#include <rump/rump.h>

#include "../common/h_fsmacros.h"
#include "h_macros.h"

/*
* Write this much over the image size.  This is to force an NFS commit,
* since we might just stuff data into the cache and miss the problem.
*/
#define NFSBONUS (1<<16)

static void
fillfs(const atf_tc_t *tc, const char *mp)
{
       char buf[8192];
       size_t written;
       ssize_t n = 0; /* xxxgcc */
       size_t bonus;
       int fd, i = 0;

       if (FSTYPE_P2K_FFS(tc) || FSTYPE_PUFFS(tc) || FSTYPE_RUMPFS(tc) ||
           FSTYPE_ZFS(tc)) {
               atf_tc_skip("fs does not support explicit block allocation "
                   "(GOP_ALLOC)");
       }

       bonus = 0;
       if (FSTYPE_NFS(tc))
               bonus = NFSBONUS;

       if (rump_sys_chdir(mp) == -1)
               atf_tc_fail_errno("chdir mountpoint");
       fd = rump_sys_open("afile", O_CREAT | O_RDWR, 0600);
       if (fd == -1)
               atf_tc_fail_errno("create file");

       for (written = 0; written < FSTEST_IMGSIZE + bonus; written +=n) {
               memset(buf, i++, sizeof(buf)); /* known garbage */
               n = rump_sys_write(fd, buf, sizeof(buf));
               if (n == -1)
                       break;
       }
       if (n == -1) {
               if (errno != ENOSPC)
                       atf_tc_fail_errno("write");
       } else {
               atf_tc_fail("filled file system over size limit");
       }

       rump_sys_close(fd);
       rump_sys_chdir("/");
}

ATF_TC_FSAPPLY(fillfs, "fills file system, expects ENOSPC");

ATF_TP_ADD_TCS(tp)
{

       ATF_TP_FSAPPLY(fillfs);

       return atf_no_error();
}