78a6d07a90
Returning with an error from nsh_consolemain prevents dereferencing a NULL pointer later in the code.
84 lines
2.9 KiB
C
84 lines
2.9 KiB
C
/****************************************************************************
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* apps/nshlib/nsh_consolemain.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <assert.h>
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#include "nsh.h"
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#include "nsh_console.h"
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#if !defined(CONFIG_NSH_ALTCONDEV) && !defined(HAVE_USB_CONSOLE) && \
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!defined(HAVE_USB_KEYBOARD)
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nsh_consolemain (Normal character device version)
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*
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* Description:
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* This interface may be to called or started with task_start to start a
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* single an NSH instance that operates on stdin and stdout. This
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* function does not normally return (see below).
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*
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* This version of nsh_consolemain handles generic /dev/console character
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* devices (see nsh_usbconsole.c and usb_usbkeyboard for other versions
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* for special USB console devices).
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*
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* Input Parameters:
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* Standard task start-up arguments. These are not used. argc may be
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* zero and argv may be NULL.
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*
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* Returned Values:
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* This function does not normally return. exit() is usually called to
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* terminate the NSH session. This function will return in the event of
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* an error. In that case, a non-zero value is returned (EXIT_FAILURE=1).
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*
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****************************************************************************/
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int nsh_consolemain(int argc, FAR char *argv[])
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{
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FAR struct console_stdio_s *pstate = nsh_newconsole(true);
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int ret;
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DEBUGASSERT(pstate != NULL);
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if (pstate == NULL)
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{
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return -ENOMEM;
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}
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/* Execute the session */
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ret = nsh_session(pstate, NSH_LOGIN_LOCAL, argc, argv);
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/* Exit upon return */
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nsh_exit(&pstate->cn_vtbl, ret);
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return ret;
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}
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#endif /* !HAVE_USB_CONSOLE && !HAVE_USB_KEYBOARD !HAVE_SLCD_CONSOLE */
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