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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 <sys/types.h>
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#include <sys/stat.h>
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#include "../tester.h"
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char text[] = "O xein', angellein Lakedaimoniois hoti teide "
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    "keimetha tois keinon rhemasi peithomenoi.";
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char *test_vfs1(bool quiet)
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{
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    int rc;
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    rc = mount("tmpfs", "/", "nulldev0", "", 0);
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    switch (rc) {
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    case EOK:
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        if (!quiet)
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            printf("mounted tmpfs on /\n");
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        break;
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    case EBUSY:
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        if (!quiet)
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            printf("(INFO) something is already mounted on /\n");
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        break;
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    default:
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        if (!quiet)
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            printf("(INFO) IPC returned errno %d\n", rc);
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        return "mount() failed.";
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    }
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    if (mkdir("/mydir", 0) != 0)
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        return "mkdir() failed.\n";
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    if (!quiet)
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        printf("created directory /mydir\n");
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    int fd0 = open("/mydir/myfile", O_CREAT);
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    if (fd0 < 0)
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        return "open() failed.\n";
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    if (!quiet)
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        printf("created file /mydir/myfile, fd=%d\n", fd0);
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    ssize_t cnt;
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    size_t size = sizeof(text);
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    cnt = write(fd0, text, size);
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    if (cnt < 0)
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        return "write() failed.\n";
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    if (!quiet)
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        printf("written %d bytes, fd=%d\n", cnt, fd0);
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    if (lseek(fd0, 0, SEEK_SET) != 0)
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        return "lseek() failed.\n";
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    if (!quiet)
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        printf("sought to position 0, fd=%d\n", fd0);
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    char buf[10];
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    while ((cnt = read(fd0, buf, sizeof(buf)))) {
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        if (cnt < 0)
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            return "read() failed.\n";
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        if (!quiet)
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            printf("read %d bytes: \"%.*s\", fd=%d\n", cnt, cnt,
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                buf, fd0);
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    }
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    close(fd0);
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    DIR *dirp;
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    struct dirent *dp;
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    if (!quiet)
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        printf("scanning the root directory...\n");
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    dirp = opendir("/");
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    if (!dirp)
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        return "opendir() failed\n";
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    while ((dp = readdir(dirp)))
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        printf("discovered node %s in /\n", dp->d_name);
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    closedir(dirp);
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    if (rename("/mydir/myfile", "/mydir/yourfile"))
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        return "rename() failed.\n";
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    if (!quiet)
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        printf("renamed /mydir/myfile to /mydir/yourfile\n");
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    if (unlink("/mydir/yourfile"))
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        return "unlink() failed.\n";
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    if (!quiet)
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        printf("unlinked file /mydir/yourfile\n");
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    if (rmdir("/mydir"))
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        return "rmdir() failed.\n";
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    if (!quiet)
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        printf("removed directory /mydir\n");
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    if (!quiet)
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        printf("scanning the root directory...\n");
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    dirp = opendir("/");
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    if (!dirp)
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        return "opendir() failed\n";
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    while ((dp = readdir(dirp)))
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        printf("discovered node %s in /\n", dp->d_name);
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    closedir(dirp);
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    return NULL;
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}
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