155 lines
3.9 KiB
C
155 lines
3.9 KiB
C
/****************************************************************************
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* netutils/webserver/httpd_mmap.c
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Header Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/sendfile.h>
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#include <limits.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <errno.h>
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#include <debug.h>
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#include "netutils/httpd.h"
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#include "httpd.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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int httpd_sendfile_open(const char *name, struct httpd_fs_file *file)
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{
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struct stat st;
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if (sizeof(file->path) < snprintf(file->path, sizeof(file->path), "%s%s",
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CONFIG_NETUTILS_HTTPD_PATH, name))
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{
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errno = ENAMETOOLONG;
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return ERROR;
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}
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/* XXX: awaiting fstat to avoid a race */
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if (-1 == stat(file->path, &st))
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{
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return ERROR;
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}
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#ifndef CONFIG_NETUTILS_HTTPD_DIRLIST
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if (S_ISDIR(st.st_mode))
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{
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errno = EISDIR;
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return ERROR;
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}
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if (!S_ISREG(st.st_mode))
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{
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errno = ENOENT;
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return ERROR;
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}
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#endif
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if (st.st_size > INT_MAX || st.st_size > SIZE_MAX)
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{
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errno = EFBIG;
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return ERROR;
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}
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file->len = (int) st.st_size;
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file->fd = open(file->path, O_RDONLY);
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#ifndef CONFIG_NETUTILS_HTTPD_DIRLIST
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if (file->fd == -1)
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{
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return ERROR;
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}
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#endif
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return OK;
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}
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int httpd_sendfile_close(struct httpd_fs_file *file)
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{
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#ifdef CONFIG_NETUTILS_HTTPD_DIRLIST
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if (-1 == file->fd)
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{
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/* we assume that it's a directory */
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return OK;
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}
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#endif
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if (-1 == close(file->fd))
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{
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return ERROR;
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}
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return OK;
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}
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int httpd_sendfile_send(int outfd, struct httpd_fs_file *file)
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{
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#ifdef CONFIG_NETUTILS_HTTPD_DIRLIST
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if (-1 == file->fd)
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{
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/* we assume that it's a directory */
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if (-1 == httpd_dirlist(outfd, file))
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{
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return ERROR;
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}
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return OK;
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}
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#endif
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if (-1 == sendfile(outfd, file->fd, 0, file->len))
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{
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return ERROR;
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}
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return OK;
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}
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