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Diffstat (limited to 'apps/examples/mount/mount_main.c')
-rw-r--r-- | apps/examples/mount/mount_main.c | 754 |
1 files changed, 754 insertions, 0 deletions
diff --git a/apps/examples/mount/mount_main.c b/apps/examples/mount/mount_main.c new file mode 100644 index 000000000..00070b94c --- /dev/null +++ b/apps/examples/mount/mount_main.c @@ -0,0 +1,754 @@ +/**************************************************************************** + * examples/mount/mount_main.c + * + * Copyright (C) 2007-2009, 2011 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_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; +} |