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nuttx-apps/nshlib/nsh_fscmds.c
Xiang Xiao 857158451b Unify the void cast usage 
1.Remove void cast for function because many place ignore the returned value witout cast
2.Replace void cast for variable with UNUSED macro

Change-Id: Ie644129a563244a6397036789c4c3ea83c4e9b09
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2020-01-02 23:21:01 +08:00

1906 lines
45 KiB
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/****************************************************************************
* apps/nshlib/nsh_fscmds.c
*
* Copyright (C) 2007-2009, 2011-2014, 2017-2019 Gregory Nutt. All rights
* reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 <nuttx/config.h>
#include <sys/types.h>
#include <stdint.h>
#include <stdbool.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <dirent.h>
#include <limits.h>
#include <libgen.h>
#include <errno.h>
#include <debug.h>
#if !defined(CONFIG_DISABLE_MOUNTPOINT)
# ifdef CONFIG_FS_READABLE /* Need at least one filesytem in configuration */
# include <sys/mount.h>
# include <sys/boardctl.h>
# include <nuttx/drivers/ramdisk.h>
# endif
# ifdef CONFIG_DEV_LOOP
# include <sys/ioctl.h>
# include <nuttx/fs/loop.h>
# endif
# ifdef CONFIG_FS_SMARTFS
# include "fsutils/mksmartfs.h"
# endif
# ifdef CONFIG_SMART_DEV_LOOP
# include <sys/ioctl.h>
# include <nuttx/fs/smart.h>
# endif
# ifdef CONFIG_NFS
# include <sys/socket.h>
# include <netinet/in.h>
# include <nuttx/fs/nfs.h>
# endif
# ifdef CONFIG_RAMLOG_SYSLOG
# include <nuttx/syslog/ramlog.h>
# endif
#endif
#ifdef CONFIG_FSUTILS_MKFATFS
# include "fsutils/mkfatfs.h"
#endif
#include "nsh.h"
#include "nsh_console.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define LSFLAGS_SIZE 1
#define LSFLAGS_LONG 2
#define LSFLAGS_RECURSIVE 4
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nsh_getdirpath
****************************************************************************/
#if !defined(CONFIG_NSH_DISABLE_LS) || !defined(CONFIG_NSH_DISABLE_CP)
static char *nsh_getdirpath(FAR struct nsh_vtbl_s *vtbl,
FAR const char *path, FAR const char *file)
{
/* Handle the case where all that is left is '/' */
if (strcmp(path, "/") == 0)
{
snprintf(vtbl->iobuffer, IOBUFFERSIZE, "/%s", file);
}
else
{
snprintf(vtbl->iobuffer, IOBUFFERSIZE, "%s/%s", path, file);
}
vtbl->iobuffer[PATH_MAX] = '\0';
return strdup(vtbl->iobuffer);
}
#endif
/****************************************************************************
* Name: ls_specialdir
****************************************************************************/
static inline int ls_specialdir(const char *dir)
{
/* '.' and '..' directories are not listed like normal directories */
return (strcmp(dir, ".") == 0 || strcmp(dir, "..") == 0);
}
/****************************************************************************
* Name: ls_handler
****************************************************************************/
#if !defined(CONFIG_NSH_DISABLE_LS)
static int ls_handler(FAR struct nsh_vtbl_s *vtbl, FAR const char *dirpath,
FAR struct dirent *entryp, FAR void *pvarg)
{
unsigned int lsflags = (unsigned int)((uintptr_t)pvarg);
#ifdef CONFIG_PSEUDOFS_SOFTLINKS
bool isdir = false;
#endif
int ret;
/* Check if any options will require that we stat the file */
if ((lsflags & (LSFLAGS_SIZE | LSFLAGS_LONG)) != 0)
{
struct stat buf;
/* stat the file */
if (entryp != NULL)
{
FAR char *fullpath = nsh_getdirpath(vtbl, dirpath, entryp->d_name);
ret = stat(fullpath, &buf);
free(fullpath);
}
else
{
/* A NULL entryp signifies that we are running ls on a single file */
ret = stat(dirpath, &buf);
}
if (ret != 0)
{
nsh_error(vtbl, g_fmtcmdfailed, "ls", "stat", NSH_ERRNO);
return ERROR;
}
if ((lsflags & LSFLAGS_LONG) != 0)
{
char details[] = "----------";
#ifdef CONFIG_PSEUDOFS_SOFTLINKS
if (S_ISLNK(buf.st_mode))
{
details[0] = 'l'; /* Takes precedence over type of the target */
isdir = S_ISDIR(buf.st_mode);
}
else
#endif
if (S_ISBLK(buf.st_mode))
{
details[0] = 'b';
}
else if (S_ISCHR(buf.st_mode))
{
details[0] = 'c';
}
else if (S_ISDIR(buf.st_mode))
{
details[0] = 'd';
}
#ifdef CONFIG_MTD
else if (S_ISMTD(buf.st_mode))
{
details[0] = 'f';
}
#endif
#ifdef CONFIG_FS_SHM
else if (S_ISSHM(buf.st_mode))
{
details[0] = 'h';
}
#endif
#ifndef CONFIG_DISABLE_MQUEUE
else if (S_ISMQ(buf.st_mode))
{
details[0] = 'm';
}
#endif
#ifdef CONFIG_NET
else if (S_ISSOCK(buf.st_mode))
{
details[0] = 'n';
}
#endif
#ifdef CONFIG_FS_NAMED_SEMAPHORES
else if (S_ISSEM(buf.st_mode))
{
details[0] = 's';
}
#endif
else if (!S_ISREG(buf.st_mode))
{
details[0] = '?';
}
if ((buf.st_mode & S_IRUSR) != 0)
{
details[1]='r';
}
if ((buf.st_mode & S_IWUSR) != 0)
{
details[2]='w';
}
if ((buf.st_mode & S_IXUSR) != 0)
{
details[3]='x';
}
if ((buf.st_mode & S_IRGRP) != 0)
{
details[4]='r';
}
if ((buf.st_mode & S_IWGRP) != 0)
{
details[5]='w';
}
if ((buf.st_mode & S_IXGRP) != 0)
{
details[6]='x';
}
if ((buf.st_mode & S_IROTH) != 0)
{
details[7]='r';
}
if ((buf.st_mode & S_IWOTH) != 0)
{
details[8]='w';
}
if ((buf.st_mode & S_IXOTH) != 0)
{
details[9]='x';
}
nsh_output(vtbl, " %s", details);
}
if ((lsflags & LSFLAGS_SIZE) != 0)
{
nsh_output(vtbl, "%8d", buf.st_size);
}
}
/* Then provide the filename that is common to normal and verbose output */
if (entryp != NULL)
{
nsh_output(vtbl, " %s", entryp->d_name);
#ifdef CONFIG_PSEUDOFS_SOFTLINKS
if (DIRENT_ISLINK(entryp->d_type))
{
FAR char *fullpath;
ssize_t len;
/* Get the target of the symbolic link */
fullpath = nsh_getdirpath(vtbl, dirpath, entryp->d_name);
len = readlink(fullpath, vtbl->iobuffer, IOBUFFERSIZE);
free(fullpath);
if (len < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, "ls", "readlink", NSH_ERRNO);
return ERROR;
}
if (isdir)
{
nsh_output(vtbl, "/ ->%s\n", vtbl->iobuffer);
}
else
{
nsh_output(vtbl, " ->%s\n", vtbl->iobuffer);
}
}
else
#endif
if (DIRENT_ISDIRECTORY(entryp->d_type) &&
!ls_specialdir(entryp->d_name))
{
nsh_output(vtbl, "/\n");
}
else
{
nsh_output(vtbl, "\n");
}
}
else
{
/* A single file */
nsh_output(vtbl, " %s\n", dirpath);
}
return OK;
}
#endif
/****************************************************************************
* Name: ls_recursive
****************************************************************************/
#if !defined(CONFIG_NSH_DISABLE_LS)
static int ls_recursive(FAR struct nsh_vtbl_s *vtbl, const char *dirpath,
struct dirent *entryp, void *pvarg)
{
int ret = OK;
/* Is this entry a directory (and not one of the special directories, . and ..)? */
if (DIRENT_ISDIRECTORY(entryp->d_type) && !ls_specialdir(entryp->d_name))
{
/* Yes.. */
FAR char *newpath;
newpath = nsh_getdirpath(vtbl, dirpath, entryp->d_name);
/* List the directory contents */
nsh_output(vtbl, "%s:\n", newpath);
/* Traverse the directory */
ret = nsh_foreach_direntry(vtbl, "ls", newpath, ls_handler, pvarg);
if (ret == 0)
{
/* Then recurse to list each directory within the directory */
ret = nsh_foreach_direntry(vtbl, "ls", newpath, ls_recursive,
pvarg);
free(newpath);
}
}
return ret;
}
#endif /* !CONFIG_NSH_DISABLE_LS */
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: cmd_basename
****************************************************************************/
#ifndef CONFIG_NSH_DISABLE_BASENAME
int cmd_basename(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *filename;
/* Usage: basename <path> [<suffix>]
*
* NOTE: basename() may modify path.
*/
filename = basename(argv[1]);
if (argc > 2)
{
FAR char *suffix = argv[2];
int nndx;
int sndx;
/* Check for any trailing sub-string */
nndx = strlen(filename);
sndx = strlen(suffix);
nndx -= sndx;
if (nndx > 0 && strcmp(&filename[nndx], suffix) == 0)
{
filename[nndx] = '\0';
}
}
/* And output the resulting basename */
nsh_output(vtbl, "%s\n", filename);
return OK;
}
#endif
/****************************************************************************
* Name: cmd_dirname
****************************************************************************/
#ifndef CONFIG_NSH_DISABLE_DIRNAME
int cmd_dirname(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *filename;
/* Usage: dirname <path>
*
* NOTE: basename() may modify path.
*/
filename = dirname(argv[1]);
nsh_output(vtbl, "%s\n", filename);
return OK;
}
#endif
/****************************************************************************
* Name: cmd_cat
****************************************************************************/
#ifndef CONFIG_NSH_DISABLE_CAT
int cmd_cat(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *fullpath;
int i;
int ret = OK;
/* Loop for each file name on the command line */
for (i = 1; i < argc && ret == OK; i++)
{
/* Get the fullpath to the file */
fullpath = nsh_getfullpath(vtbl, argv[i]);
if (fullpath == NULL)
{
nsh_error(vtbl, g_fmtcmdoutofmemory, argv[0]);
ret = ERROR;
}
else
{
/* Dump the file to the console */
ret = nsh_catfile(vtbl, argv[0], fullpath);
/* Free the allocated full path */
nsh_freefullpath(fullpath);
}
}
return ret;
}
#endif
/****************************************************************************
* Name: cmd_dmesg
****************************************************************************/
#if defined(CONFIG_RAMLOG_SYSLOG) && !defined(CONFIG_NSH_DISABLE_DMESG)
int cmd_dmesg(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
return nsh_catfile(vtbl, argv[0], CONFIG_SYSLOG_DEVPATH);
}
#endif
/****************************************************************************
* Name: cmd_cp
****************************************************************************/
#ifndef CONFIG_NSH_DISABLE_CP
int cmd_cp(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
struct stat buf;
FAR char *srcpath = NULL;
FAR char *destpath = NULL;
FAR char *allocpath = NULL;
int oflags = O_WRONLY | O_CREAT | O_TRUNC;
int rdfd;
int wrfd;
int ret = ERROR;
/* Get the full path to the source file */
srcpath = nsh_getfullpath(vtbl, argv[1]);
if (srcpath == NULL)
{
nsh_error(vtbl, g_fmtcmdoutofmemory, argv[0]);
goto errout;
}
/* Open the source file for reading */
rdfd = open(srcpath, O_RDONLY);
if (rdfd < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "open", NSH_ERRNO);
goto errout_with_srcpath;
}
/* Get the full path to the destination file or directory */
destpath = nsh_getfullpath(vtbl, argv[2]);
if (destpath == NULL)
{
nsh_error(vtbl, g_fmtcmdoutofmemory, argv[0]);
goto errout_with_rdfd;
}
/* Check if the destination is a directory */
ret = stat(destpath, &buf);
if (ret == 0)
{
/* Something exists here... is it a directory? */
if (S_ISDIR(buf.st_mode))
{
/* Yes, it is a directory. Remove any trailing '/' characters from the path */
nsh_trimdir(destpath);
/* Construct the full path to the new file */
allocpath = nsh_getdirpath(vtbl, destpath, basename(argv[1]) );
if (!allocpath)
{
nsh_error(vtbl, g_fmtcmdoutofmemory, argv[0]);
goto errout_with_destpath;
}
/* Open then dest for writing */
nsh_freefullpath(destpath);
destpath = allocpath;
}
else if (!S_ISREG(buf.st_mode))
{
/* Maybe it is a driver? */
oflags = O_WRONLY;
}
}
/* Now open the destination */
wrfd = open(destpath, oflags, 0666);
if (wrfd < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "open", NSH_ERRNO);
goto errout_with_allocpath;
}
/* Now copy the file */
for (;;)
{
int nbytesread;
int nbyteswritten;
do
{
nbytesread = read(rdfd, vtbl->iobuffer, IOBUFFERSIZE);
if (nbytesread == 0)
{
/* End of file */
ret = OK;
goto errout_with_wrfd;
}
else if (nbytesread < 0)
{
/* EINTR is not an error (but will still stop the copy) */
if (errno == EINTR)
{
nsh_error(vtbl, g_fmtsignalrecvd, argv[0]);
}
else
{
/* Read error */
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "read", NSH_ERRNO);
}
goto errout_with_wrfd;
}
}
while (nbytesread <= 0);
do
{
nbyteswritten = write(wrfd, vtbl->iobuffer, nbytesread);
if (nbyteswritten >= 0)
{
nbytesread -= nbyteswritten;
}
else
{
/* EINTR is not an error (but will still stop the copy) */
if (errno == EINTR)
{
nsh_error(vtbl, g_fmtsignalrecvd, argv[0]);
}
else
{
/* Read error */
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "write", NSH_ERRNO);
}
goto errout_with_wrfd;
}
}
while (nbytesread > 0);
}
errout_with_wrfd:
close(wrfd);
errout_with_allocpath:
if (allocpath)
{
free(allocpath);
}
errout_with_destpath:
if (destpath && !allocpath)
{
nsh_freefullpath(destpath);
}
errout_with_rdfd:
close(rdfd);
errout_with_srcpath:
if (srcpath)
{
nsh_freefullpath(srcpath);
}
errout:
return ret;
}
#endif
/****************************************************************************
* Name: cmd_losetup
****************************************************************************/
#ifndef CONFIG_DISABLE_MOUNTPOINT
# if defined(CONFIG_DEV_LOOP) && !defined(CONFIG_NSH_DISABLE_LOSETUP)
int cmd_losetup(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *loopdev = NULL;
FAR char *filepath = NULL;
struct losetup_s setup;
bool teardown = false;
bool readonly = false;
off_t offset = 0;
bool badarg = false;
int ret = ERROR;
int option;
int fd;
/* Get the losetup options: Two forms are supported:
*
* losetup -d <loop-device>
* losetup [-o <offset>] [-r] <loop-device> <filename>
*
* NOTE that the -o and -r options are accepted with the -d option, but
* will be ignored.
*/
while ((option = getopt(argc, argv, "d:o:r")) != ERROR)
{
switch (option)
{
case 'd':
loopdev = nsh_getfullpath(vtbl, optarg);
teardown = true;
break;
case 'o':
offset = atoi(optarg);
break;
case 'r':
readonly = true;
break;
case '?':
default:
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
badarg = true;
break;
}
}
/* If a bad argument was encountered, then return without processing the command */
if (badarg)
{
goto errout_with_paths;
}
/* If this is not a tear down operation, then additional command line
* parameters are required.
*/
if (!teardown)
{
/* There must be two arguments on the command line after the options */
if (optind + 1 < argc)
{
loopdev = nsh_getfullpath(vtbl, argv[optind]);
optind++;
filepath = nsh_getfullpath(vtbl, argv[optind]);
optind++;
}
else
{
nsh_error(vtbl, g_fmtargrequired, argv[0]);
goto errout_with_paths;
}
}
/* There should be nothing else on the command line */
if (optind < argc)
{
nsh_error(vtbl, g_fmttoomanyargs, argv[0]);
goto errout_with_paths;
}
/* Open the loop device */
fd = open("/dev/loop", O_RDONLY);
if (fd < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "open", NSH_ERRNO);
goto errout_with_paths;
}
/* Perform the teardown operation */
if (teardown)
{
/* Tear down the loop device. */
ret = ioctl(fd, LOOPIOC_TEARDOWN, (unsigned long)((uintptr_t)loopdev));
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "ioctl", NSH_ERRNO);
goto errout_with_fd;
}
}
else
{
/* Set up the loop device */
setup.devname = loopdev; /* The loop block device to be created */
setup.filename = filepath; /* The file or character device to use */
setup.sectsize = 512; /* The sector size to use with the block device */
setup.offset = offset; /* An offset that may be applied to the device */
setup.readonly = readonly; /* True: Read access will be supported only */
ret = ioctl(fd, LOOPIOC_SETUP, (unsigned long)((uintptr_t)&setup));
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "ioctl", NSH_ERRNO);
goto errout_with_fd;
}
}
ret = OK;
/* Free resources */
errout_with_fd:
close(fd);
errout_with_paths:
if (loopdev)
{
free(loopdev);
}
if (filepath)
{
free(filepath);
}
return ret;
}
#endif
#endif
/****************************************************************************
* Name: cmd_losmart
****************************************************************************/
#ifndef CONFIG_DISABLE_MOUNTPOINT
# if defined(CONFIG_SMART_DEV_LOOP) && !defined(CONFIG_NSH_DISABLE_LOSMART)
int cmd_losmart(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *loopdev = NULL;
FAR char *filepath = NULL;
struct smart_losetup_s setup;
bool teardown = false;
bool readonly = false;
int minor = -1;
int erasesize = -1;
int sectsize = -1;
off_t offset = 0;
bool badarg = false;
int ret = ERROR;
int option;
int fd;
/* Get the losetup options: Two forms are supported:
*
* losmart -d <loop-device>
* losmart [-m minor-number] [-o <offset>] [-e erasesize] [-s sectsize] [-r] <filename>
*
* NOTE that the -o and -r options are accepted with the -d option, but
* will be ignored.
*/
while ((option = getopt(argc, argv, "d:e:m:o:rs:")) != ERROR)
{
switch (option)
{
case 'd':
loopdev = nsh_getfullpath(vtbl, optarg);
teardown = true;
break;
case 'e':
erasesize = atoi(optarg);
break;
case 'm':
minor = atoi(optarg);
break;
case 'o':
offset = atoi(optarg);
break;
case 'r':
readonly = true;
break;
case 's':
sectsize = atoi(optarg);
break;
case '?':
default:
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
badarg = true;
break;
}
}
/* If a bad argument was encountered, then return without processing the command */
if (badarg)
{
goto errout_with_paths;
}
/* If this is not a tear down operation, then additional command line
* parameters are required.
*/
if (!teardown)
{
/* There must be two arguments on the command line after the options */
if (optind < argc)
{
filepath = nsh_getfullpath(vtbl, argv[optind]);
optind++;
}
else
{
nsh_error(vtbl, g_fmtargrequired, argv[0]);
goto errout_with_paths;
}
}
/* There should be nothing else on the command line */
if (optind < argc)
{
nsh_error(vtbl, g_fmttoomanyargs, argv[0]);
goto errout_with_paths;
}
/* Open the loop device */
fd = open("/dev/smart", O_RDONLY);
if (fd < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "open", NSH_ERRNO);
goto errout_with_paths;
}
/* Perform the teardown operation */
if (teardown)
{
/* Tear down the loop device. */
ret = ioctl(fd, SMART_LOOPIOC_TEARDOWN, (unsigned long)((uintptr_t) loopdev));
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "ioctl", NSH_ERRNO);
goto errout_with_fd;
}
}
else
{
/* Set up the loop device */
setup.minor = minor; /* The loop block device to be created */
setup.filename = filepath; /* The file or character device to use */
setup.sectsize = sectsize; /* The sector size to use with the block device */
setup.erasesize = erasesize; /* The sector size to use with the block device */
setup.offset = offset; /* An offset that may be applied to the device */
setup.readonly = readonly; /* True: Read access will be supported only */
ret = ioctl(fd, SMART_LOOPIOC_SETUP, (unsigned long)((uintptr_t)&setup));
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "ioctl", NSH_ERRNO);
goto errout_with_fd;
}
}
ret = OK;
/* Free resources */
errout_with_fd:
close(fd);
errout_with_paths:
if (loopdev)
{
free(loopdev);
}
if (filepath)
{
free(filepath);
}
return ret;
}
#endif
#endif
/****************************************************************************
* Name: cmd_ln
****************************************************************************/
#if !defined(CONFIG_NSH_DISABLE_LN) && defined(CONFIG_PSEUDOFS_SOFTLINKS)
int cmd_ln(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *linkpath;
FAR char *tgtpath;
int ndx;
int ret;
/* ln [-s] <target> <link> */
if (argc == 4)
{
if (strcmp(argv[1], "-s") != 0)
{
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
return ERROR;
}
ndx = 2;
}
else
{
ndx = 1;
}
/* Get the full path to the link target */
tgtpath = nsh_getfullpath(vtbl, argv[ndx]);
if (tgtpath == NULL)
{
goto errout_with_nomemory;
}
/* Get the full path to the location where the link will be created */
linkpath = nsh_getfullpath(vtbl, argv[ndx + 1]);
if (linkpath == NULL)
{
goto errout_with_tgtpath;
}
ret = link(tgtpath, linkpath);
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "link", NSH_ERRNO);
ret = ERROR;
}
nsh_freefullpath(linkpath);
nsh_freefullpath(tgtpath);
return ret;
errout_with_tgtpath:
nsh_freefullpath(tgtpath);
errout_with_nomemory:
nsh_error(vtbl, g_fmtcmdoutofmemory, argv[0]);
return ERROR;
}
#endif
/****************************************************************************
* Name: cmd_ls
****************************************************************************/
#ifndef CONFIG_NSH_DISABLE_LS
int cmd_ls(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
struct stat st;
FAR const char *relpath;
unsigned int lsflags = 0;
FAR char *fullpath;
bool badarg = false;
int len;
int ret;
/* Get the ls options */
int option;
while ((option = getopt(argc, argv, "lRs")) != ERROR)
{
switch (option)
{
case 'l':
lsflags |= (LSFLAGS_SIZE|LSFLAGS_LONG);
break;
case 'R':
lsflags |= LSFLAGS_RECURSIVE;
break;
case 's':
lsflags |= LSFLAGS_SIZE;
break;
case '?':
default:
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
badarg = true;
break;
}
}
/* If a bad argument was encountered, then return without processing the command */
if (badarg)
{
return ERROR;
}
/* There may be one argument after the options */
if (optind + 1 < argc)
{
nsh_error(vtbl, g_fmttoomanyargs, argv[0]);
return ERROR;
}
else if (optind >= argc)
{
#ifndef CONFIG_DISABLE_ENVIRON
relpath = nsh_getcwd();
#else
nsh_error(vtbl, g_fmtargrequired, argv[0]);
return ERROR;
#endif
}
else
{
relpath = argv[optind];
}
/* Get the fullpath to the directory */
fullpath = nsh_getfullpath(vtbl, relpath);
if (fullpath == NULL)
{
nsh_error(vtbl, g_fmtcmdoutofmemory, argv[0]);
return ERROR;
}
/* Trim any trailing '/' characters */
len = strlen(fullpath) - 1;
while (len > 0 && fullpath[len] == '/')
{
fullpath[len] = '\0';
len--;
}
/* See if it is a single file */
if (stat(fullpath, &st) < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "stat", NSH_ERRNO);
ret = ERROR;
}
else if (!S_ISDIR(st.st_mode))
{
/* Pass a null dirent to ls_handler to signify that this is a single
* file
*/
ret = ls_handler(vtbl, fullpath, NULL, (FAR void *)((uintptr_t)lsflags));
}
else
{
/* List the directory contents */
nsh_output(vtbl, "%s:\n", fullpath);
ret = nsh_foreach_direntry(vtbl, "ls", fullpath, ls_handler,
(FAR void*)((uintptr_t)lsflags));
if (ret == OK && (lsflags & LSFLAGS_RECURSIVE) != 0)
{
/* Then recurse to list each directory within the directory */
ret = nsh_foreach_direntry(vtbl, "ls", fullpath, ls_recursive,
(FAR void *)((uintptr_t)lsflags));
}
}
nsh_freefullpath(fullpath);
return ret;
}
#endif
/****************************************************************************
* Name: cmd_mkdir
****************************************************************************/
#ifdef NSH_HAVE_DIROPTS
#ifndef CONFIG_NSH_DISABLE_MKDIR
int cmd_mkdir(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *fullpath = nsh_getfullpath(vtbl, argv[1]);
int ret = ERROR;
if (fullpath != NULL)
{
ret = mkdir(fullpath, 0777);
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "mkdir", NSH_ERRNO);
}
nsh_freefullpath(fullpath);
}
return ret;
}
#endif
#endif
/****************************************************************************
* Name: cmd_mkfatfs
****************************************************************************/
#if !defined(CONFIG_DISABLE_MOUNTPOINT) && defined(CONFIG_FSUTILS_MKFATFS)
#ifndef CONFIG_NSH_DISABLE_MKFATFS
int cmd_mkfatfs(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
struct fat_format_s fmt = FAT_FORMAT_INITIALIZER;
FAR char *fullpath;
bool badarg;
int option;
int ret = ERROR;
/* mkfatfs [-F <fatsize>] <block-driver> */
badarg = false;
while ((option = getopt(argc, argv, ":F:r:")) != ERROR)
{
switch (option)
{
case 'F':
fmt.ff_fattype = atoi(optarg);
if (fmt.ff_fattype != 0 && fmt.ff_fattype != 12 &&
fmt.ff_fattype != 16 && fmt.ff_fattype != 32)
{
nsh_error(vtbl, g_fmtargrange, argv[0]);
badarg = true;
}
break;
case 'r':
fmt.ff_rootdirentries = atoi(optarg);
if (fmt.ff_rootdirentries < 0)
{
nsh_error(vtbl, g_fmtargrange, argv[0]);
badarg = true;
}
break;
case ':':
nsh_error(vtbl, g_fmtargrequired, argv[0]);
badarg = true;
break;
case '?':
default:
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
badarg = true;
break;
}
}
/* If a bad argument was encountered, then return without processing the command */
if (badarg)
{
return ERROR;
}
/* There should be exactly one parameter left on the command-line */
if (optind == argc-1)
{
fullpath = nsh_getfullpath(vtbl, argv[optind]);
if (fullpath == NULL)
{
nsh_error(vtbl, g_fmtcmdoutofmemory, argv[0]);
return ERROR;
}
}
else if (optind >= argc)
{
nsh_error(vtbl, g_fmttoomanyargs, argv[0]);
return ERROR;
}
else
{
nsh_error(vtbl, g_fmtargrequired, argv[0]);
return ERROR;
}
/* Now format the FAT file system */
ret = mkfatfs(fullpath, &fmt);
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "mkfatfs", NSH_ERRNO);
}
nsh_freefullpath(fullpath);
return ret;
}
#endif
#endif
/****************************************************************************
* Name: cmd_mkfifo
****************************************************************************/
#if defined(CONFIG_PIPES) && CONFIG_DEV_FIFO_SIZE > 0 && \
!defined(CONFIG_NSH_DISABLE_MKFIFO)
int cmd_mkfifo(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *fullpath = nsh_getfullpath(vtbl, argv[1]);
int ret = ERROR;
if (fullpath != NULL)
{
ret = mkfifo(fullpath, 0777);
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "mkfifo", NSH_ERRNO);
}
nsh_freefullpath(fullpath);
}
return ret;
}
#endif /* CONFIG_PIPES && CONFIG_DEV_FIFO_SIZE > 0 && !CONFIG_NSH_DISABLE_MKFIFO */
/****************************************************************************
* Name: cmd_mkrd
****************************************************************************/
#ifdef NSH_HAVE_WRITABLE_MOUNTPOINT
#ifndef CONFIG_NSH_DISABLE_MKRD
int cmd_mkrd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR const char *fmt;
struct boardioc_mkrd_s desc;
uint32_t nsectors;
bool badarg = false;
int sectsize = 512;
int minor = 0;
int ret;
/* Get the mkrd options */
int option;
while ((option = getopt(argc, argv, ":m:s:")) != ERROR)
{
switch (option)
{
case 'm':
minor = atoi(optarg);
if (minor < 0 || minor > 255)
{
nsh_error(vtbl, g_fmtargrange, argv[0]);
badarg = true;
}
break;
case 's':
sectsize = atoi(optarg);
if (minor < 0 || minor > 16384)
{
nsh_error(vtbl, g_fmtargrange, argv[0]);
badarg = true;
}
break;
case ':':
nsh_error(vtbl, g_fmtargrequired, argv[0]);
badarg = true;
break;
case '?':
default:
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
badarg = true;
break;
}
}
/* If a bad argument was encountered, then return without processing the command */
if (badarg)
{
return ERROR;
}
/* There should be exactly one parameter left on the command-line */
if (optind == argc - 1)
{
nsectors = (uint32_t)atoi(argv[optind]);
}
else if (optind >= argc)
{
fmt = g_fmttoomanyargs;
goto errout_with_fmt;
}
else
{
fmt = g_fmtargrequired;
goto errout_with_fmt;
}
/* Then create the ramdisk */
desc.minor = minor; /* Minor device number of the RAM disk. */
desc.nsectors = nsectors; /* The number of sectors in the RAM disk. */
desc.sectsize = sectsize; /* The size of one sector in bytes. */
desc.rdflags = RDFLAG_WRENABLED | RDFLAG_FUNLINK; /* See ramdisk.h. */
ret = boardctl(BOARDIOC_MKRD, (uintptr_t)&desc);
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "boarctl(BOARDIOC_MKRD)",
NSH_ERRNO_OF(-ret));
return ERROR;
}
return ret;
errout_with_fmt:
nsh_output(vtbl, fmt, argv[0]);
return ERROR;
}
#endif
#endif
/****************************************************************************
* Name: cmd_mksmartfs
****************************************************************************/
#if !defined(CONFIG_DISABLE_MOUNTPOINT) && defined(CONFIG_FS_SMARTFS) && \
defined(CONFIG_FSUTILS_MKSMARTFS)
#ifndef CONFIG_NSH_DISABLE_MKSMARTFS
int cmd_mksmartfs(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
char *fullpath = NULL;
int ret = OK;
uint16_t sectorsize = 0;
int force = 0;
int opt;
#ifdef CONFIG_SMARTFS_MULTI_ROOT_DIRS
int nrootdirs = 1;
#endif
/* Process any options */
optind = 0;
while ((opt = getopt(argc, argv, "fs:")) != -1)
{
switch (opt)
{
case 'f':
force = 1;
break;
case 's':
sectorsize = atoi(optarg);
if (sectorsize < 256 || sectorsize > 16384)
{
nsh_error(vtbl, "Sector size must be 256-16384\n");
return EINVAL;
}
if (sectorsize & (sectorsize-1))
{
nsh_error(vtbl, "Sector size must be power of 2\n");
return EINVAL;
}
break;
default:
break;
}
}
if (optind < argc)
{
fullpath = nsh_getfullpath(vtbl, argv[optind]);
}
if (fullpath)
{
/* Test if number of root directories was supplied */
#ifdef CONFIG_SMARTFS_MULTI_ROOT_DIRS
if (optind + 1 < argc)
{
nrootdirs = atoi(argv[optind + 1]);
}
if (nrootdirs > 8 || nrootdirs < 1)
{
nsh_error(vtbl, "Invalid number of root directories specified\n");
}
else
#endif
if (force || issmartfs(fullpath) != OK)
{
#ifdef CONFIG_SMARTFS_MULTI_ROOT_DIRS
ret = mksmartfs(fullpath, sectorsize, nrootdirs);
#else
ret = mksmartfs(fullpath, sectorsize);
#endif
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "mksmartfs", NSH_ERRNO);
}
}
nsh_freefullpath(fullpath);
}
return ret;
}
#endif
#endif
/****************************************************************************
* Name: cmd_mv
****************************************************************************/
#ifdef NSH_HAVE_DIROPTS
#ifndef CONFIG_NSH_DISABLE_MV
int cmd_mv(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *oldpath;
FAR char *newpath;
int ret;
/* Get the full path to the old and new file paths */
oldpath = nsh_getfullpath(vtbl, argv[1]);
if (oldpath == NULL)
{
nsh_error(vtbl, g_fmtcmdoutofmemory, argv[0]);
return ERROR;
}
newpath = nsh_getfullpath(vtbl, argv[2]);
if (newpath == NULL)
{
nsh_error(vtbl, g_fmtcmdoutofmemory, argv[0]);
ret = ERROR;
goto errout_with_oldpath;
}
/* Perform the mount */
ret = rename(oldpath, newpath);
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "rename", NSH_ERRNO);
}
/* Free the file paths */
nsh_freefullpath(newpath);
errout_with_oldpath:
nsh_freefullpath(oldpath);
return ret;
}
#endif
#endif
/****************************************************************************
* Name: cmd_readlink
****************************************************************************/
#if !defined(CONFIG_NSH_DISABLE_READLINK) && defined(CONFIG_PSEUDOFS_SOFTLINKS)
int cmd_readlink(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *fullpath;
ssize_t len;
/* readlink <link> */
/* Get the fullpath to the directory */
fullpath = nsh_getfullpath(vtbl, argv[1]);
if (fullpath == NULL)
{
nsh_error(vtbl, g_fmtcmdoutofmemory, argv[0]);
return ERROR;
}
len = readlink(fullpath, vtbl->iobuffer, IOBUFFERSIZE);
nsh_freefullpath(fullpath);
if (len < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, "ls", "readlink", NSH_ERRNO);
return ERROR;
}
nsh_output(vtbl, "%s\n", vtbl->iobuffer);
return OK;
}
#endif
/****************************************************************************
* Name: cmd_rm
****************************************************************************/
#ifdef NSH_HAVE_DIROPTS
#ifndef CONFIG_NSH_DISABLE_RM
int cmd_rm(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *fullpath = nsh_getfullpath(vtbl, argv[1]);
int ret = ERROR;
if (fullpath != NULL)
{
ret = unlink(fullpath);
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "unlink", NSH_ERRNO);
}
nsh_freefullpath(fullpath);
}
return ret;
}
#endif
#endif
/****************************************************************************
* Name: cmd_rmdir
****************************************************************************/
#ifdef NSH_HAVE_DIROPTS
#ifndef CONFIG_NSH_DISABLE_RMDIR
int cmd_rmdir(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *fullpath = nsh_getfullpath(vtbl, argv[1]);
int ret = ERROR;
if (fullpath != NULL)
{
ret = rmdir(fullpath);
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "rmdir", NSH_ERRNO);
}
nsh_freefullpath(fullpath);
}
return ret;
}
#endif
#endif
/****************************************************************************
* Name: cmd_sh
****************************************************************************/
#if CONFIG_NFILE_STREAMS > 0 && !defined(CONFIG_NSH_DISABLESCRIPT)
#ifndef CONFIG_NSH_DISABLE_SH
int cmd_sh(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
return nsh_script(vtbl, argv[0], argv[1]);
}
#endif
#endif
/****************************************************************************
* Name: cmd_cmp
****************************************************************************/
#ifndef CONFIG_NSH_DISABLE_CMP
int cmd_cmp(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *path1 = NULL;
FAR char *path2 = NULL;
off_t total_read = 0;
int fd1 = -1;
int fd2 = -1;
int ret = ERROR;
/* Get the full path to the two files */
path1 = nsh_getfullpath(vtbl, argv[1]);
if (path1 == NULL)
{
nsh_error(vtbl, g_fmtargrequired, argv[0]);
goto errout;
}
path2 = nsh_getfullpath(vtbl, argv[2]);
if (path2 == NULL)
{
nsh_error(vtbl, g_fmtargrequired, argv[0]);
goto errout_with_path1;
}
/* Open the files for reading */
fd1 = open(path1, O_RDONLY);
if (fd1 < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "open", NSH_ERRNO);
goto errout_with_path2;
}
fd2 = open(path2, O_RDONLY);
if (fd2 < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "open", NSH_ERRNO);
goto errout_with_fd1;
}
/* The loop until we hit the end of file or find a difference in the two
* files.
*/
for (;;)
{
char buf1[128];
char buf2[128];
/* Read the file data */
ssize_t nbytesread1 = read(fd1, buf1, sizeof(buf1));
ssize_t nbytesread2 = read(fd2, buf2, sizeof(buf2));
if (nbytesread1 < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "read", NSH_ERRNO);
goto errout_with_fd2;
}
if (nbytesread2 < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "read", NSH_ERRNO);
goto errout_with_fd2;
}
total_read += nbytesread1 > nbytesread2 ? nbytesread2 : nbytesread1;
/* Compare the file data */
if (nbytesread1 != nbytesread2 ||
memcmp(buf1, buf2, nbytesread1) != 0)
{
nsh_error(vtbl, "files differ: byte %u\n", total_read);
goto errout_with_fd2;
}
/* A partial read indicates the end of file (usually) */
if (nbytesread1 < (size_t)sizeof(buf1))
{
break;
}
}
/* The files are the same, i.e., the end of file was encountered
* without finding any differences.
*/
ret = OK;
errout_with_fd2:
close(fd2);
errout_with_fd1:
close(fd1);
errout_with_path2:
nsh_freefullpath(path2);
errout_with_path1:
nsh_freefullpath(path1);
errout:
return ret;
}
#endif
/****************************************************************************
* Name: cmd_truncate
****************************************************************************/
#ifndef CONFIG_DISABLE_MOUNTPOINT
#ifndef CONFIG_NSH_DISABLE_TRUNCATE
int cmd_truncate(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
{
FAR char *fullpath;
FAR char *endptr;
struct stat buf;
unsigned long length;
int ret;
/* truncate -s <length> <file-path> */
if (strcmp(argv[1], "-s") != 0)
{
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
return ERROR;
}
length = strtoul(argv[2], &endptr, 0);
if (*endptr != '\0')
{
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
return ERROR;
}
/* Get the full path to the file */
fullpath = nsh_getfullpath(vtbl, argv[3]);
if (fullpath == NULL)
{
nsh_error(vtbl, g_fmtcmdoutofmemory, argv[0]);
return ERROR;
}
/* stat the file */
ret = stat(fullpath, &buf);
if (ret < 0)
{
int errval = errno;
/* If stat() failed because the file does not exist, then try to
* create it.
*/
if (errval == ENOENT)
{
int fd = creat(fullpath, 0666);
if (fd < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "stat", NSH_ERRNO);
ret = ERROR;
}
else
{
/* We successfully performed the create and now have a zero-
* length file. Perform the truncation to extend the allocation
* (unless we really wanted a zero-length file).
*/
ret = OK;
if (length > 0)
{
/* Extend the file to length */
ret = ftruncate(fd, length);
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "ftruncate",
NSH_ERRNO);
}
}
close(fd);
}
}
else
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "stat",
NSH_ERRNO_OF(errval));
ret = ERROR;
}
}
else if (!S_ISREG(buf.st_mode))
{
nsh_error(vtbl, g_fmtarginvalid, argv[0]);
ret = ERROR;
}
else
{
/* Everything looks good... perform the truncation */
ret = truncate(fullpath, length);
if (ret < 0)
{
nsh_error(vtbl, g_fmtcmdfailed, argv[0], "truncate", NSH_ERRNO);
}
}
nsh_freefullpath(fullpath);
return ret;
}
#endif
#endif
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