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-rw-r--r--apps/examples/mount/mount_main.c762
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diff --git a/apps/examples/mount/mount_main.c b/apps/examples/mount/mount_main.c
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+/****************************************************************************
+ * mount_main.c
+ *
+ * Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/statfs.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <errno.h>
+
+#include "mount.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#define TEST_USE_STAT 1
+#define TEST_SHOW_DIRECTORIES 1
+#define TEST_USE_STATFS 1
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static const char g_mntdir[] = "/mnt";
+static const char g_target[] = "/mnt/fs";
+static const char g_filesystemtype[] = "vfat";
+
+static const char g_testdir1[] = "/mnt/fs/TestDir";
+static const char g_testdir2[] = "/mnt/fs/NewDir1";
+static const char g_testdir3[] = "/mnt/fs/NewDir2";
+static const char g_testdir4[] = "/mnt/fs/NewDir3";
+#ifdef CONFIG_EXAMPLES_MOUNT_DEVNAME
+static const char g_testfile1[] = "/mnt/fs/TestDir/TestFile.txt";
+#endif
+static const char g_testfile2[] = "/mnt/fs/TestDir/WrTest1.txt";
+static const char g_testfile3[] = "/mnt/fs/NewDir1/WrTest2.txt";
+static const char g_testfile4[] = "/mnt/fs/NewDir3/Renamed.txt";
+static const char g_testmsg[] = "This is a write test";
+
+static int g_nerrors = 0;
+
+static char g_namebuffer[256];
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+ const char g_source[] = MOUNT_DEVNAME;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+#ifdef TEST_USE_STAT
+static void show_stat(const char *path, struct stat *ps)
+{
+ printf("%s stat:\n", path);
+ printf("\tmode : %08x\n", ps->st_mode);
+ if (S_ISREG(ps->st_mode))
+ {
+ printf("\ttype : File\n");
+ }
+ else if (S_ISDIR(ps->st_mode))
+ {
+ printf("\ttype : Directory\n");
+ }
+ else if (S_ISCHR(ps->st_mode))
+ {
+ printf("\ttype : Character driver\n");
+ }
+ else if (S_ISBLK(ps->st_mode))
+ {
+ printf("\ttype : Block driver\n");
+ }
+ else
+ {
+ printf("\ttype : Unknown\n");
+ }
+
+ printf("\tsize : %d (bytes)\n", ps->st_size);
+ printf("\tblock size : %d (bytes)\n", ps->st_blksize);
+ printf("\tsize : %d (blocks)\n", ps->st_blocks);
+ printf("\taccess time : %d\n", ps->st_atime);
+ printf("\tmodify time : %d\n", ps->st_mtime);
+ printf("\tchange time : %d\n", ps->st_ctime);
+}
+#endif
+
+/****************************************************************************
+ * Name: show_statfs
+ ****************************************************************************/
+
+#ifdef TEST_USE_STATFS
+static void show_statfs(const char *path)
+{
+ struct statfs buf;
+ int ret;
+
+ /* Try stat() against a file or directory. It should fail with expectederror */
+
+ printf("show_statfs: Try statfs(%s)\n", path);
+ ret = statfs(path, &buf);
+ if (ret == 0)
+ {
+ printf("show_statfs: statfs(%s) succeeded\n", path);
+ printf("\tFS Type : %0x\n", buf.f_type);
+ printf("\tBlock size : %d\n", buf.f_bsize);
+ printf("\tNumber of blocks : %d\n", buf.f_blocks);
+ printf("\tFree blocks : %d\n", buf.f_bfree);
+ printf("\tFree user blocks : %d\n", buf.f_bavail);
+ printf("\tNumber file nodes : %d\n", buf.f_files);
+ printf("\tFree file nodes : %d\n", buf.f_ffree);
+ printf("\tFile name length : %d\n", buf.f_namelen);
+ }
+ else
+ {
+ printf("show_statfs: ERROR statfs(%s) failed with errno=%d\n",
+ path, errno);
+ g_nerrors++;
+ }
+}
+#else
+# define show_statfs(p)
+#endif
+
+/****************************************************************************
+ * Name: show_directories
+ ****************************************************************************/
+
+#ifdef TEST_SHOW_DIRECTORIES
+static void show_directories(const char *path, int indent)
+{
+ DIR *dirp;
+ struct dirent *direntry;
+ int i;
+
+ dirp = opendir(path);
+ if ( !dirp )
+ {
+ printf("show_directories: ERROR opendir(\"%s\") failed with errno=%d\n",
+ path, errno);
+ g_nerrors++;
+ return;
+ }
+
+ for (direntry = readdir(dirp); direntry; direntry = readdir(dirp))
+ {
+ for (i = 0; i < 2*indent; i++)
+ {
+ putchar(' ');
+ }
+ if (DIRENT_ISDIRECTORY(direntry->d_type))
+ {
+ char *subdir;
+ printf("%s/\n", direntry->d_name);
+ sprintf(g_namebuffer, "%s/%s", path, direntry->d_name);
+ subdir = strdup(g_namebuffer);
+ show_directories( subdir, indent + 1);
+ free(subdir);
+ }
+ else
+ {
+ printf("%s\n", direntry->d_name);
+ }
+ }
+
+ closedir(dirp);
+}
+#else
+# define show_directories(p,i)
+#endif
+
+/****************************************************************************
+ * Name: fail_read_open
+ ****************************************************************************/
+#ifdef CONFIG_EXAMPLES_MOUNT_DEVNAME
+static void fail_read_open(const char *path, int expectederror)
+{
+ int fd;
+
+ printf("fail_read_open: Try open(%s) for reading\n", path);
+
+ fd = open(path, O_RDONLY);
+ if (fd >= 0)
+ {
+ printf("fail_read_open: ERROR open(%s) succeeded\n", path);
+ g_nerrors++;
+ close(fd);
+ }
+ else if (errno != expectederror)
+ {
+ printf("fail_read_open: ERROR open(%s) failed with errno=%d (expected %d)\n",
+ path, errno, expectederror);
+ g_nerrors++;
+ }
+}
+#endif
+
+/****************************************************************************
+ * Name: read_test_file
+ ****************************************************************************/
+
+static void read_test_file(const char *path)
+{
+ char buffer[128];
+ int nbytes;
+ int fd;
+
+ /* Read a test file that is already on the test file system image */
+
+ printf("read_test_file: opening %s for reading\n", path);
+
+ fd = open(path, O_RDONLY);
+ if (fd < 0)
+ {
+ printf("read_test_file: ERROR failed to open %s, errno=%d\n",
+ path, errno);
+ g_nerrors++;
+ }
+ else
+ {
+ memset(buffer, 0, 128);
+ nbytes = read(fd, buffer, 128);
+ if (nbytes < 0)
+ {
+ printf("read_test_file: ERROR failed to read from %s, errno=%d\n",
+ path, errno);
+ g_nerrors++;
+ }
+ else
+ {
+ buffer[127]='\0';
+ printf("read_test_file: Read \"%s\" from %s\n", buffer, path);
+ }
+ close(fd);
+ }
+}
+
+/****************************************************************************
+ * Name: write_test_file
+ ****************************************************************************/
+
+static void write_test_file(const char *path)
+{
+ int fd;
+
+ /* Write a test file into a pre-existing file on the test file system */
+
+ printf("write_test_file: opening %s for writing\n", path);
+
+ fd = open(path, O_WRONLY|O_CREAT|O_TRUNC, 0644);
+ if (fd < 0)
+ {
+ printf("write_test_file: ERROR failed to open %s for writing, errno=%d\n",
+ path, errno);
+ g_nerrors++;
+ }
+ else
+ {
+ int nbytes = write(fd, g_testmsg, strlen(g_testmsg));
+ if (nbytes < 0)
+ {
+ printf("write_test_file: ERROR failed to write to %s, errno=%d\n",
+ path, errno);
+ g_nerrors++;
+ }
+ else
+ {
+ printf("write_test_file: wrote %d bytes to %s\n", nbytes, path);
+ }
+ close(fd);
+ }
+}
+
+/****************************************************************************
+ * Name: fail_mkdir
+ ****************************************************************************/
+
+static void fail_mkdir(const char *path, int expectederror)
+{
+ int ret;
+
+ /* Try mkdir() against a file or directory. It should fail with expectederror */
+
+ printf("fail_mkdir: Try mkdir(%s)\n", path);
+
+ ret = mkdir(path, 0666);
+ if (ret == 0)
+ {
+ printf("fail_mkdir: ERROR mkdir(%s) succeeded\n", path);
+ g_nerrors++;
+ }
+ else if (errno != expectederror)
+ {
+ printf("fail_mkdir: ERROR mkdir(%s) failed with errno=%d (expected %d)\n",
+ path, errno, expectederror);
+ g_nerrors++;
+ }
+}
+
+/****************************************************************************
+ * Name: succeed_mkdir
+ ****************************************************************************/
+
+static void succeed_mkdir(const char *path)
+{
+ int ret;
+
+ printf("succeed_mkdir: Try mkdir(%s)\n", path);
+
+ ret = mkdir(path, 0666);
+ if (ret != 0)
+ {
+ printf("succeed_mkdir: ERROR mkdir(%s) failed with errno=%d\n",
+ path, errno);
+ g_nerrors++;
+ }
+}
+
+/****************************************************************************
+ * Name: fail_rmdir
+ ****************************************************************************/
+
+static void fail_rmdir(const char *path, int expectederror)
+{
+ int ret;
+
+ /* Try rmdir() against a file or directory. It should fail with expectederror */
+
+ printf("fail_rmdir: Try rmdir(%s)\n", path);
+
+ ret = rmdir(path);
+ if (ret == 0)
+ {
+ printf("fail_rmdir: ERROR rmdir(%s) succeeded\n", path);
+ g_nerrors++;
+ }
+ else if (errno != expectederror)
+ {
+ printf("fail_rmdir: ERROR rmdir(%s) failed with errno=%d (expected %d)\n",
+ path, errno, expectederror);
+ g_nerrors++;
+ }
+}
+
+/****************************************************************************
+ * Name: succeed_rmdir
+ ****************************************************************************/
+
+static void succeed_rmdir(const char *path)
+{
+ int ret;
+
+ printf("succeed_rmdir: Try rmdir(%s)\n", path);
+
+ ret = rmdir(path);
+ if (ret != 0)
+ {
+ printf("succeed_rmdir: ERROR rmdir(%s) failed with errno=%d\n",
+ path, errno);
+ g_nerrors++;
+ }
+}
+
+/****************************************************************************
+ * Name: fail_unlink
+ ****************************************************************************/
+
+static void fail_unlink(const char *path, int expectederror)
+{
+ int ret;
+
+ /* Try unlink() against a file or directory. It should fail with expectederror */
+
+ printf("fail_unlink: Try unlink(%s)\n", path);
+
+ ret = unlink(path);
+ if (ret == 0)
+ {
+ printf("fail_unlink: ERROR unlink(%s) succeeded\n", path);
+ g_nerrors++;
+ }
+ else if (errno != expectederror)
+ {
+ printf("fail_unlink: ERROR unlink(%s) failed with errno=%d (expected %d)\n",
+ path, errno, expectederror);
+ g_nerrors++;
+ }
+}
+
+/****************************************************************************
+ * Name: succeed_unlink
+ ****************************************************************************/
+
+static void succeed_unlink(const char *path)
+{
+ int ret;
+
+ /* Try unlink() against the test file. It should succeed. */
+
+ printf("succeed_unlink: Try unlink(%s)\n", path);
+
+ ret = unlink(path);
+ if (ret != 0)
+ {
+ printf("succeed_unlink: ERROR unlink(%s) failed with errno=%d\n",
+ path, errno);
+ g_nerrors++;
+ }
+}
+
+/****************************************************************************
+ * Name: fail_rename
+ ****************************************************************************/
+
+static void fail_rename(const char *oldpath, const char *newpath, int expectederror)
+{
+ int ret;
+
+ /* Try rename() against a file or directory. It should fail with expectederror */
+
+ printf("fail_rename: Try rename(%s->%s)\n", oldpath, newpath);
+
+ ret = rename(oldpath, newpath);
+ if (ret == 0)
+ {
+ printf("fail_rename: ERROR rename(%s->%s) succeeded\n",
+ oldpath, newpath);
+ g_nerrors++;
+ }
+ else if (errno != expectederror)
+ {
+ printf("fail_rename: ERROR rename(%s->%s) failed with errno=%d (expected %d)\n",
+ oldpath, newpath, errno, expectederror);
+ g_nerrors++;
+ }
+}
+
+/****************************************************************************
+ * Name: succeed_rename
+ ****************************************************************************/
+
+static void succeed_rename(const char *oldpath, const char *newpath)
+{
+ int ret;
+
+ printf("succeed_rename: Try rename(%s->%s)\n", oldpath, newpath);
+
+ ret = rename(oldpath, newpath);
+ if (ret != 0)
+ {
+ printf("succeed_rename: ERROR rename(%s->%s) failed with errno=%d\n",
+ oldpath, newpath, errno);
+ g_nerrors++;
+ }
+}
+
+/****************************************************************************
+ * Name: fail_stat
+ ****************************************************************************/
+
+#ifdef TEST_USE_STAT
+static void fail_stat(const char *path, int expectederror)
+{
+ struct stat buf;
+ int ret;
+
+ /* Try stat() against a file or directory. It should fail with expectederror */
+
+ printf("fail_stat: Try stat(%s)\n", path);
+
+ ret = stat(path, &buf);
+ if (ret == 0)
+ {
+ printf("fail_stat: ERROR stat(%s) succeeded\n", path);
+ show_stat(path, &buf);
+ g_nerrors++;
+ }
+ else if (errno != expectederror)
+ {
+ printf("fail_stat: ERROR stat(%s) failed with errno=%d (expected %d)\n",
+ path, errno, expectederror);
+ g_nerrors++;
+ }
+}
+#else
+# define fail_stat(p,e);
+#endif
+
+/****************************************************************************
+ * Name: succeed_stat
+ ****************************************************************************/
+
+#ifdef TEST_USE_STAT
+static void succeed_stat(const char *path)
+{
+ struct stat buf;
+ int ret;
+
+ printf("succeed_stat: Try stat(%s)\n", path);
+
+ ret = stat(path, &buf);
+ if (ret != 0)
+ {
+ printf("succeed_stat: ERROR stat(%s) failed with errno=%d\n",
+ path, errno);
+ g_nerrors++;
+ }
+ else
+ {
+ printf("succeed_stat: stat(%s) succeeded\n", path);
+ show_stat(path, &buf);
+ }
+}
+#else
+#define succeed_stat(p)
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: user_initialize
+ ****************************************************************************/
+
+void user_initialize(void)
+{
+}
+
+/****************************************************************************
+ * Name: user_start
+ ****************************************************************************/
+
+int user_start(int argc, char *argv[])
+{
+ int ret;
+
+#ifndef CONFIG_EXAMPLES_MOUNT_DEVNAME
+ /* Create a RAM disk for the test */
+
+ ret = create_ramdisk();
+ if (ret < 0)
+ {
+ printf("user_start: ERROR failed to create RAM disk\n");
+ return 1;
+ }
+#endif
+
+ /* Mount the test file system (see arch/sim/src/up_deviceimage.c */
+
+ printf("user_start: mounting %s filesystem at target=%s with source=%s\n",
+ g_filesystemtype, g_target, g_source);
+
+ ret = mount(g_source, g_target, g_filesystemtype, 0, NULL);
+ printf("user_start: mount() returned %d\n", ret);
+
+ if (ret == 0)
+ {
+ show_statfs(g_mntdir);
+ show_statfs(g_target);
+
+#ifdef CONFIG_EXAMPLES_MOUNT_DEVNAME
+ /* Read a test file that is already on the test file system image */
+
+ show_directories("", 0);
+ succeed_stat(g_testfile1);
+ show_statfs(g_testfile1);
+ read_test_file(g_testfile1);
+#else
+ /* Create the test directory that would have been on the canned filesystem */
+
+ succeed_mkdir(g_testdir1);
+ show_directories("", 0);
+ succeed_stat(g_testdir1);
+ show_statfs(g_testdir1);
+#endif
+
+ /* Write a test file into a pre-existing directory on the test file system */
+
+ fail_stat(g_testfile2, ENOENT);
+ write_test_file(g_testfile2);
+ show_directories("", 0);
+ succeed_stat(g_testfile2);
+ show_statfs(g_testfile2);
+
+ /* Read the file that we just wrote */
+
+ read_test_file(g_testfile2);
+
+ /* Try rmdir() against a file on the directory. It should fail with ENOTDIR */
+#ifdef CONFIG_EXAMPLES_MOUNT_DEVNAME
+ fail_rmdir(g_testfile1, ENOTDIR);
+#endif
+
+ /* Try rmdir() against the test directory. It should fail with ENOTEMPTY */
+
+ fail_rmdir(g_testdir1, ENOTEMPTY);
+
+ /* Try unlink() against the test directory. It should fail with EISDIR */
+
+ fail_unlink(g_testdir1, EISDIR);
+
+ /* Try unlink() against the test file1. It should succeed. */
+#ifdef CONFIG_EXAMPLES_MOUNT_DEVNAME
+ succeed_unlink(g_testfile1);
+ fail_stat(g_testfile1, ENOENT);
+ show_directories("", 0);
+#endif
+
+ /* Attempt to open testfile1 should fail with ENOENT */
+#ifdef CONFIG_EXAMPLES_MOUNT_DEVNAME
+ fail_read_open(g_testfile1, ENOENT);
+#endif
+ /* Try rmdir() against the test directory. It should still fail with ENOTEMPTY */
+
+ fail_rmdir(g_testdir1, ENOTEMPTY);
+
+ /* Try mkdir() against the test file2. It should fail with EEXIST. */
+
+ fail_mkdir(g_testfile2, EEXIST);
+
+ /* Try unlink() against the test file2. It should succeed. */
+
+ succeed_unlink(g_testfile2);
+ show_directories("", 0);
+ fail_stat(g_testfile2, ENOENT);
+
+ /* Try mkdir() against the test dir1. It should fail with EEXIST. */
+
+ fail_mkdir(g_testdir1, EEXIST);
+
+ /* Try rmdir() against the test directory. mkdir should now succeed. */
+
+ succeed_rmdir(g_testdir1);
+ show_directories("", 0);
+ fail_stat(g_testdir1, ENOENT);
+
+ /* Try mkdir() against the test dir2. It should succeed */
+
+ succeed_mkdir(g_testdir2);
+ show_directories("", 0);
+ succeed_stat(g_testdir2);
+ show_statfs(g_testdir2);
+
+ /* Try mkdir() against the test dir2. It should fail with EXIST */
+
+ fail_mkdir(g_testdir2, EEXIST);
+
+ /* Write a test file into a new directory on the test file system */
+
+ fail_stat(g_testfile3, ENOENT);
+ write_test_file(g_testfile3);
+ show_directories("", 0);
+ succeed_stat(g_testfile3);
+ show_statfs(g_testfile3);
+
+ /* Read the file that we just wrote */
+
+ read_test_file(g_testfile3);
+
+ /* Use mkdir() to create test dir3. It should succeed */
+
+ fail_stat(g_testdir3, ENOENT);
+ succeed_mkdir(g_testdir3);
+ show_directories("", 0);
+ succeed_stat(g_testdir3);
+ show_statfs(g_testdir3);
+
+ /* Try rename() on the root directory. Should fail with EXDEV*/
+
+ fail_rename(g_target, g_testdir4, EXDEV);
+
+ /* Try rename() to an existing directory. Should fail with EEXIST */
+
+ fail_rename(g_testdir2, g_testdir3, EEXIST);
+
+ /* Try rename() to a non-existing directory. Should succeed */
+
+ fail_stat(g_testdir4, ENOENT);
+ succeed_rename(g_testdir3, g_testdir4);
+ show_directories("", 0);
+ fail_stat(g_testdir3, ENOENT);
+ succeed_stat(g_testdir4);
+ show_statfs(g_testdir4);
+
+ /* Try rename() of file. Should work. */
+
+ fail_stat(g_testfile4, ENOENT);
+ succeed_rename(g_testfile3, g_testfile4);
+ show_directories("", 0);
+ fail_stat(g_testfile3, ENOENT);
+ succeed_stat(g_testfile4);
+ show_statfs(g_testfile4);
+
+ /* Make sure that we can still read the renamed file */
+
+ read_test_file(g_testfile4);
+
+ /* Unmount the file system */
+
+ printf("user_start: Try unmount(%s)\n", g_target);
+
+ ret = umount(g_target);
+ if (ret != 0)
+ {
+ printf("user_start: ERROR umount() failed, errno %d\n", errno);
+ g_nerrors++;
+ }
+
+ printf("user_start: %d errors reported\n", g_nerrors);
+ }
+
+ fflush(stdout);
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-08 13:25:03 +0000