97 lines
3.5 KiB
C
97 lines
3.5 KiB
C
/****************************************************************************
|
|
* libs/libc/builtin/lib_builtin_isavail.c
|
|
*
|
|
* Originally by:
|
|
*
|
|
* Copyright (C) 2011 Uros Platise. All rights reserved.
|
|
* Author: Uros Platise <uros.platise@isotel.eu>
|
|
*
|
|
* With subsequent updates, modifications, and general maintenance by:
|
|
*
|
|
* Copyright (C) 2012-2013, 2019 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 <string.h>
|
|
#include <limits.h>
|
|
#include <errno.h>
|
|
|
|
#include <nuttx/lib/builtin.h>
|
|
|
|
#ifdef HAVE_BUILTIN_CONTEXT
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: builtin_isavail
|
|
*
|
|
* Description:
|
|
* Checks for availability of an application named 'appname' registered
|
|
* during compile time and, if available, returns the index into the table
|
|
* of built-in applications.
|
|
*
|
|
* Input Parameters:
|
|
* filename - Name of the linked-in binary to be started.
|
|
*
|
|
* Returned Value:
|
|
* This is an internal function, used by by the NuttX binfmt logic and
|
|
* by the application built-in logic. It returns a non-negative index to
|
|
* the application entry in the table of built-in applications on success
|
|
* or a negated errno value in the event of a failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int builtin_isavail(FAR const char *appname)
|
|
{
|
|
FAR const char *name;
|
|
int i;
|
|
|
|
for (i = 0; (name = builtin_getname(i)) != NULL; i++)
|
|
{
|
|
if (strncmp(name, appname, NAME_MAX) == 0)
|
|
{
|
|
return i;
|
|
}
|
|
}
|
|
|
|
return -ENOENT;
|
|
}
|
|
|
|
#endif /* HAVE_BUILTIN_CONTEXT */
|