nuttx-apps/netutils/webserver/httpd_sendfile.c
Alin Jerpelea 5572819bb1 netutils: nxstyle fixes
fixes for errors reported by nxstyle tool

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-06-11 08:53:57 -05:00

140 lines
3.1 KiB
C

/****************************************************************************
* apps/netutils/webserver/httpd_sendfile.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included 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 "netutils/httpd.h"
#include "httpd.h"
/****************************************************************************
* Public Functions
****************************************************************************/
int httpd_sendfile_open(const char *name, struct httpd_fs_file *file)
{
struct stat st;
if (sizeof(file->path) < snprintf(file->path, sizeof(file->path), "%s%s",
CONFIG_NETUTILS_HTTPD_PATH, name))
{
errno = ENAMETOOLONG;
return ERROR;
}
/* XXX: awaiting fstat to avoid a race */
if (-1 == stat(file->path, &st))
{
return ERROR;
}
#ifndef CONFIG_NETUTILS_HTTPD_DIRLIST
if (S_ISDIR(st.st_mode))
{
errno = EISDIR;
return ERROR;
}
if (!S_ISREG(st.st_mode))
{
errno = ENOENT;
return ERROR;
}
#endif
if (st.st_size > INT_MAX || st.st_size > SIZE_MAX)
{
errno = EFBIG;
return ERROR;
}
file->len = (int) st.st_size;
file->fd = open(file->path, O_RDONLY);
#ifndef CONFIG_NETUTILS_HTTPD_DIRLIST
if (file->fd == -1)
{
return ERROR;
}
#endif
return OK;
}
int httpd_sendfile_close(struct httpd_fs_file *file)
{
#ifdef CONFIG_NETUTILS_HTTPD_DIRLIST
if (-1 == file->fd)
{
/* we assume that it's a directory */
return OK;
}
#endif
if (-1 == close(file->fd))
{
return ERROR;
}
return OK;
}
int httpd_sendfile_send(int outfd, struct httpd_fs_file *file)
{
#ifdef CONFIG_NETUTILS_HTTPD_DIRLIST
if (-1 == file->fd)
{
/* we assume that it's a directory */
if (-1 == httpd_dirlist(outfd, file))
{
return ERROR;
}
return OK;
}
#endif
if (-1 == sendfile(outfd, file->fd, 0, file->len))
{
return ERROR;
}
return OK;
}