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/****************************************************************************
* apps/system/zoninfo/tzmount.c
*
* Copyright (C) 2015 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/mount.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <nuttx/fs/ramdisk.h>
#include <apps/zoneinfo.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#ifndef CONFIG_SYSTEM_ZONEINFO_RAMDEVNO
# define CONFIG_SYSTEM_ZONEINFO_RAMDEVNO 1
#endif
#ifndef CONFIG_LIBC_TZDIR
# errror CONFIG_LIBC_TZDIR is not defined
#endif
#ifdef CONFIG_DISABLE_MOUNTPOINT
# error "Mountpoint support is disabled"
#endif
#if CONFIG_NFILE_DESCRIPTORS < 4
# error "Not enough file descriptors"
#endif
#ifndef CONFIG_FS_ROMFS
# error "ROMFS support not enabled"
#endif
#define SECTORSIZE 64
#define NSECTORS(b) (((b)+SECTORSIZE-1)/SECTORSIZE)
#define STR_RAMDEVNO(m) #m
#define MKMOUNT_DEVNAME(m) "/dev/ram" STR_RAMDEVNO(m)
#define MOUNT_DEVNAME MKMOUNT_DEVNAME(CONFIG_SYSTEM_ZONEINFO_RAMDEVNO)
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
#ifdef CONFIG_BUILD_KERNEL
int main(int argc, FAR char *argv[])
#else
int tzmount_main(int argc, char **argv)
#endif
{
int ret;
/* Create a RAM disk for the test */
ret = romdisk_register(CONFIG_SYSTEM_ZONEINFO_RAMDEVNO,
romfs_zoneinfo_img,
NSECTORS(romfs_zoneinfo_img_len),
SECTORSIZE);
if (ret < 0)
{
printf("ERROR: Failed to create RAM disk\n");
return EXIT_FAILURE;
}
/* Mount the test file system */
printf("Mounting ROMFS filesystem at target=%s with source=%s\n",
CONFIG_LIBC_TZDIR, MOUNT_DEVNAME);
ret = mount(MOUNT_DEVNAME, CONFIG_LIBC_TZDIR, "romfs", MS_RDONLY, NULL);
if (ret < 0)
{
printf("ERROR: Mount failed: %d\n", errno);
return EXIT_FAILURE;
}
printf("TZ database mounted at %s\n", CONFIG_LIBC_TZDIR);
return EXIT_SUCCESS;
}
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