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2656 jermar 1
/*
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 * Copyright (c) 2008 Jakub Jermar
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <vfs/vfs.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <dirent.h>
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#include <devmap.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "../tester.h"
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#define FS_TYPE      "tmpfs"
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#define MOUNT_POINT  "/tmp"
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#define OPTIONS      ""
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#define FLAGS        0
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#define TEST_DIRECTORY  MOUNT_POINT "/testdir"
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#define TEST_FILE       TEST_DIRECTORY "/testfile"
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#define TEST_FILE2      TEST_DIRECTORY "/nextfile"
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#define MAX_DEVICE_NAME  32
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#define BUF_SIZE         16
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static char text[] = "Lorem ipsum dolor sit amet, consectetur adipisicing elit";
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static char *read_root(void)
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{
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    TPRINTF("Opening the root directory...");
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    DIR *dirp = opendir("/");
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    if (!dirp) {
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        TPRINTF("\n");
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        return "opendir() failed";
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    } else
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        TPRINTF("OK\n");
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    struct dirent *dp;
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    while ((dp = readdir(dirp)))
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        TPRINTF(" node \"%s\"\n", dp->d_name);
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    closedir(dirp);
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    return NULL;
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}
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char *test_vfs1(void)
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{
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    if (mkdir(MOUNT_POINT, 0) != 0)
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        return "mkdir() failed";
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    TPRINTF("Created directory %s\n", MOUNT_POINT);
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    char null[MAX_DEVICE_NAME];
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    int null_id = devmap_null_create();
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    if (null_id == -1)
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        return "Unable to create null device";
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    snprintf(null, MAX_DEVICE_NAME, "null%d", null_id);
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    int rc = mount(FS_TYPE, MOUNT_POINT, null, OPTIONS, FLAGS);
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    switch (rc) {
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    case EOK:
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        TPRINTF("Mounted /dev/%s as %s on %s\n", null, FS_TYPE, MOUNT_POINT);
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        break;
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    case EBUSY:
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        TPRINTF("(INFO) Filesystem already mounted on %s\n", MOUNT_POINT);
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        break;
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    default:
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        TPRINTF("(ERR) IPC returned errno %d (is tmpfs loaded?)\n", rc);
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        return "mount() failed";
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    }
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    if (mkdir(TEST_DIRECTORY, 0) != 0)
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        return "mkdir() failed";
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    TPRINTF("Created directory %s\n", TEST_DIRECTORY);
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    int fd0 = open(TEST_FILE, O_CREAT);
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    if (fd0 < 0)
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        return "open() failed";
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    TPRINTF("Created file %s (fd=%d)\n", TEST_FILE, fd0);
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    size_t size = sizeof(text);
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    ssize_t cnt = write(fd0, text, size);
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    if (cnt < 0)
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        return "write() failed";
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    TPRINTF("Written %d bytes\n", cnt);
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    if (lseek(fd0, 0, SEEK_SET) != 0)
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        return "lseek() failed";
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    TPRINTF("Sought to position 0\n");
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    char buf[BUF_SIZE];
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    while ((cnt = read(fd0, buf, BUF_SIZE))) {
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        if (cnt < 0)
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            return "read() failed";
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        TPRINTF("Read %d bytes: \".*s\"\n", cnt, cnt, buf);
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    }
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    close(fd0);
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    char *rv = read_root();
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    if (rv != NULL)
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        return rv;
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    if (rename(TEST_FILE, TEST_FILE2))
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        return "rename() failed";
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    TPRINTF("Renamed %s to %s\n", TEST_FILE, TEST_FILE2);
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    if (unlink(TEST_FILE2))
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        return "unlink() failed";
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    TPRINTF("Unlinked %s\n", TEST_FILE2);
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    if (rmdir(TEST_DIRECTORY))
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        return "rmdir() failed";
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    TPRINTF("Removed directory %s\n", TEST_DIRECTORY);
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    rv = read_root();
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    if (rv != NULL)
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        return rv;
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    return NULL;
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}