71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/****************************************************************************
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* libs/libc/builtin/lib_builtin_isavail.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 <string.h>
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#include <limits.h>
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#include <errno.h>
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#include <nuttx/lib/builtin.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: builtin_isavail
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*
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* Description:
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* Checks for availability of an application named 'appname' registered
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* during compile time and, if available, returns the index into the table
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* of built-in applications.
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*
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* Input Parameters:
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* filename - Name of the linked-in binary to be started.
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*
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* Returned Value:
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* This is an internal function, used by by the NuttX binfmt logic and
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* by the application built-in logic. It returns a non-negative index to
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* the application entry in the table of built-in applications on success
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* or a negated errno value in the event of a failure.
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*
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****************************************************************************/
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int builtin_isavail(FAR const char *appname)
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{
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FAR const char *name;
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int i;
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for (i = 0; (name = builtin_getname(i)) != NULL; i++)
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{
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if (strcmp(name, appname) == 0)
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{
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return i;
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}
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}
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return -ENOENT;
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}
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