/****************************************************************************
* netutils/webserver/httpd_mmap.c
*
* Copyright (C) 2012 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 Header Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/sendfile.h>
#include <limits.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
#include <debug.h>
#include <apps/netutils/httpd.h>
#include "httpd.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
int httpd_sendfile_open(const char *name, struct httpd_fs_file *file)
{
char path[PATH_MAX];
struct stat st;
if (sizeof path < snprintf(path, sizeof path, "%s%s",
CONFIG_NETUTILS_HTTPD_PATH, name))
{
errno = ENAMETOOLONG;
return ERROR;
}
/* XXX: awaiting fstat to avoid a race */
if (-1 == stat(path, &st))
{
return ERROR;
}
if (st.st_size > INT_MAX || st.st_size > SIZE_MAX)
{
errno = EFBIG;
return ERROR;
}
file->len = (int) st.st_size;
file->fd = open(path, O_RDONLY);
if (file->fd == -1)
{
return ERROR;
}
return OK;
}
int httpd_sendfile_close(struct httpd_fs_file *file)
{
if (-1 == close(file->fd))
{
return ERROR;
}
return OK;
}
int httpd_sendfile_send(int outfd, struct httpd_fs_file *file)
{
if (-1 == sendfile(outfd, file->fd, 0, file->len))
{
return ERROR;
}
return OK;
}