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- /****************************************************************************
- * 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>
- /****************************************************************************
- * 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;
- }
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